–1– AECTB4E 201811-T
ORDERING INFORMATION
■ TV rating type
16 A Type Power Rocker
Switches with a 3 mm
Contact gap Secured
AJ8 (J8)
SWITCHES
FEATURES
• Power rocker switches for safety requirements.
• High inrush current resistance is ideal for Power switch of
office automation equipment.
• A broad product line (TV-8 rating type added to lineup)
Standard actuator Wide actuator
AJ 8 F
F: Cadmium-free product
Number of poles and Operation
1: 1-pole, single throw (ON-OFF)
2: 2-pole, single throw (ON-OFF)
Terminal shape
0: .250 Quick-connect terminal
1: Soldering terminal
2: PC board terminal
3: PC board right angle terminal (for standard actuator only)
4: PC board left angle terminal (for standard actuator only)
Actuator color
W: White B: Black R: Red
Flange color
Nil: Black (standard color)
(Custom ordered color:
W: White, H: Light gray) Note 1)
Insulation guard
Nil: Short guard type
T: Long guard type (.250 Quick-connect terminal and
soldering terminal of standard actuator only)
Actuator
Nil: Standard actuator
W: Wide actuator
Actuator indication
0: No indication
1: indication (Indication on top)
2: indication (Indication on top)
Notes: 1. Please consult us for details concerning different flange colors.
2. “ ” is engraved on all flanges.
3. The color of indication on the actuator:
• White actuator: black
• Others: white
4. They come with a stamp indicating safety standards.
AJ 8 2 B TV F
F: Cadmium-free productNumber of poles and Operation
2: 2-pole, single throw (ON-OFF)
Terminal shape
0: .250 Quick-connect
terminal
1: Soldering terminal
Rating
TV: TV rating
Actuator color
B: Black
Actuator indication
0: No indication
2: indication
AJ8 (J8) Switches
–2– AECTB4E 201811-T
PRODUCT TYPES
■ Standard actuator type
1) Without indication on actuators
(Standard flange color is black.)
Notes: 1. A letter indicating the actuator color is entered in place of asterisk. (W: White, B: Black, R: Red)
For other flange colors type, black is the standard. For requests of other flange color, please refer to ORDERING INFORMATION.
2. Long guard type is available for .250 Quick-connect terminal and soldering terminal type. When ordering, please add a “T” before the “F” at the end of the part
number.
3. The color of indication on the actuator:
• For white actuator: black
• For others: white
4. They come with a stamp indicating safety standards.
5. Note that the position of the I mark on the flange is used as a reference for left angle and right angle terminals as shown in the diagram below.
2) With indication on actuators
(Standard flange color is black.)
Notes: 1. A letter indicating the actuator color is entered in place of asterisk. (W: White, B: Black, R: Red)
For other flange colors type, black is the standard. For requests of other flange color, please refer to ORDERING INFORMATION.
2. Long guard type is available for .250 Quick-connect terminal and soldering terminal type. When ordering, please add a “T” before the “F” at the end of the part
number.
3. The color of indication on the actuator:
• For white actuator: black
• For others: white
4. They come with a stamp indicating safety standards.
5. Note that the position of the I mark on the flange is used as a reference for left angle and right angle terminals as shown in the diagram below.
Terminal shape Poles Operating types Part No.
Without indication
.250 Quick-connect terminal 1-pole
ON-OFF
AJ8100∗F
2-pole AJ8200∗F
Soldering terminal 1-pole AJ8110∗F
2-pole AJ8210∗F
PC board terminal 1-pole AJ8120∗F
2-pole AJ8220∗F
PC board right angle terminal 1-pole AJ8130∗F
2-pole AJ8230∗F
PC board left angle terminal 1-pole AJ8140∗F
2-pole AJ8240∗F
Terminal shape Poles Operating types Part No.
With indication With indication
.250 Quick-connect terminal 1-pole
ON-OFF
AJ8101∗F AJ8102∗F
2-pole AJ8201∗F AJ8202∗F
Soldering terminal 1-pole AJ8111∗F AJ8112∗F
2-pole AJ8211∗F AJ8212∗F
PC board terminal 1-pole AJ8121∗F AJ8122∗F
2-pole AJ8221∗F AJ8222∗F
PC board right angle terminal 1-pole AJ8131∗F AJ8132∗F
2-pole AJ8231∗F AJ8232∗F
PC board left angle terminal 1-pole AJ8141∗F AJ8142∗F
2-pole AJ8241∗F AJ8242∗F
Right angle terminal Left angle terminal
I mark I mark
Right angle terminal Left angle terminal
I mark I mark
AJ8 (J8) Switches
–3– AECTB4E 201811-T
■ Wide actuator type
1) Without indication on actuators
2) With indication on actuators
(Standard flange color is black.)
Notes: 1. A letter indicating the actuator color is entered in place of asterisk. (W: White, B: Black, R: Red)
For other flange colors type, black is the standard. For requests of other flange color, please refer to ORDERING INFORMATION.
2. The color of indication on the actuator:
• For white actuator: black
• For others: white
3. They come with a stamp indicating safety standards.
■ TV rating type
SPECIFICATIONS
■ Contact rating
Note: * The motor load is in accordance with EN61058-1. Inrush current can be switched up to the value of 6 times the indicated rating.
■ TV rating
■ Characteristics
Note: Test conditions and judgment are complying with JIS C 6571, EN61058-1 and UL61058-1.
* Except TV rating type
Terminal shape Poles Operating types Part No.
Without indication
.250 Quick-connect terminal 1-pole
ON-OFF
AJ8W100∗F
2-pole AJ8W200∗F
Soldering terminal 1-pole AJ8W110∗F
2-pole AJ8W210∗F
PC board terminal 1-pole AJ8W120∗F
2-pole AJ8W220∗F
Terminal shape Poles Operating types Part No.
With indication With indication
.250 Quick-connect terminal 1-pole
ON-OFF
AJ8W101∗F AJ8W102∗F
2-pole AJ8W201∗F AJ8W202∗F
Soldering terminal 1-pole AJ8W111∗F AJ8W112∗F
2-pole AJ8W211∗F AJ8W212∗F
PC board terminal 1-pole AJ8W121∗F AJ8W122∗F
2-pole AJ8W221∗F AJ8W222∗F
Terminal shape Poles Operating types Part No.
Without indication With indication
.250 Quick-connect terminal
2-pole ON-OFF
AJ8200BTVF —
— AJ8202BTVF
Soldering terminal AJ8210BTVF —
— AJ8212BTVF
Voltage Resistive load
(Power factor = 1)
Motor load* (EN61058-1)
(Power factor = 0.6) Inrush load
250V AC 16A 4A 160A (8.3ms)
Contact voltage Resistive load Motor load (EN61058-1) Capacitor load (EN61058-1) Lamp load (UL61058-1) Expected electrical life
(Power factor = 1) (Power factor = 0.6) (Inrush load) (TV-8) (at 7 cpm)
120V AC — — — 8/117A Min. 2.5 × 104
250V AC 16A 4A 160A (8.3ms) — Min. 104
Item Specifications
Expected life Mechanical Min. 5 × 104 (at 20 cpm.)
Electrical (at rated load)* Min. 104 (at 7 cpm.)
Insulation resistance Min. 100 MΩ (at 500V DC measured by insulation resistive meter) Between terminals
Dielectric strength Initial, 2,000 Vrms (detection current: 10 mA) Between terminals
Contact resistance Initial, Max. 100mΩ (by voltage drop at 1A, 2 to 4V DC)
Temperature rise (at terminal section) Max. 30°C at 6 × 103 ope. or less (UL61058-1), Max. 55°C from 6 × 103 ope. to 104 (EN61058-1)
Vibration resistance 10 to 55 Hz at double amplitude of 1.5mm (Contact opening Max. 1 msec.)
Shock resistance Min. 980m/s2
Actuator strength 40 N for 1 minute (operating direction)
Terminal strength (.250 Quick-connect terminal) 100 N for 1 minute or more (Pull & push direction)
Ambient temperature –25°C to +85°C (no freezing and condensing)
Flame retardancy UL94V-0
Tracking resistance Min. 175
Operating force
(reference characteristics)
1-pole 2.45 ± 1.47N
2-pole 4.5 ± 2.5N
Contact material AgSnO2 alloy
AJ8 (J8) Switches
–4– AECTB4E 201811-T
DIMENSIONS
■ .250 Quick-connect terminal/Short guard type
■ Soldering terminal
■ PC board terminal
(Unit: mm) General tolerance: ±0.5
The CAD data of the products with a “CAD Data” mark can be downloaded from our Website.
CAD Data
External dimensions
ON OFF
30
15
2-pole 1-pole
12.8
10
19.5 16
7.7
10.6
12.5
4.375
8.75
0.8
28
15 6.35
2
4.4
32°±4
1.75 dia.
Long guard type
.250 Quick-connect terminal
ON OFF
11
Diagram of recommended
panel mounting holes
12.9+0.1
0
X
Panel thickness X
0.75 to less than 1.25 28.2
1.25 or more to less than 2 28.4
2 or more to 3 28.8
0
−0.1
0
−0.1
0
−0.1
CAD Data
External dimensions
ON OFF
30
15
2-pole 1-pole
12.8
10
19.5 16
7.7
10.6
12.5
4.375
8.75
0.8
28
15
2.5
2
3.5
32°±4
Long guard type
Soldering terminal
OFF
ON
11
Diagram of recommended
panel mounting holes
12.9+0.1
0
X
Panel thickness X
0.75 to less than 1.25 28.2
1.25 or more to less than 2 28.4
2 or more to 3 28.8
0
−0.1
0
−0.1
0
−0.1
CAD Data
External dimensions
ON OFF
30
15
2-pole 1-pole
12.8
10
19.5 16
7.7
(7.5)
12.5
4.375
8.75
0.8
28
15
2
2
4
32°±4
PC board pattern
15±0.1
8.75±0.1
3±0.2 1.2±0.1 15±0.1
3±0.2 1.2±0.1
4.375±0.1
2-pole 1-pole
Diagram of recommended
panel mounting holes
12.9+0.1
0
X
Panel thickness X
0.75 to less than 1.25 28.2
1.25 or more to less than 2 28.4
2 or more to 3 28.8
0
−0.1
0
−0.1
0
−0.1
CAD Data
AJ8 (J8) Switches
–5– AECTB4E 201811-T
■ PC board right angle terminal
■ Wide actuator type
■ Terminal circuit diagram (common)
External dimensions
OFFON
15
2-pole 1-pole
12.8
10
12.54
80.8
2
30
19.5 16
7.7
28
2
32°±4
Note: Left angle terminal type is also available.
PC board pattern
15±0.1
8±0.1
3±0.2 15±0.1
3±0.2
1.2±0.1
1.2±0.1
4.375±0.1
2-pole 1-pole
Diagram of recommended
panel mounting holes
Terminal side
12.9+0.1
0
X
21.0±0.3
17.5±0.3
Panel thickness X
0.75 to less than 1.25 28.2
1.25 or more to less than 2 28.4
2 or more to 3 28.8
0
−0.1
0
−0.1
0
−0.1
CAD Data
External dimensions
OFFON
32
32°±4
25
2-pole 1-pole
21.8
19
19.5 16
7.7
10.6
21
4.375
8.75
29.4
15 6.35
4.4
1.75 dia. 0.8
2
Diagram of recommended
panel mounting holes
Note: Dimensions for the terminals of soldering
terminal type and PC board terminal type are
the same as those of standard actuator type.
Panel thickness X
1 to less than 1.8 30.0
1.8 or more to 2.3 30.7
22.0+0.1
0
X
0
−0.1
0
−0.1
CAD Data
24
31
* .250 Quick-connect terminal/Long guard type
Terminal circuit diagram
1-pole 2-pole
(3)
(1)
(4)
(2)(1) (2)
AJ8 (J8) Switches
–6– AECTB4E 201811-T
CAUTIONS FOR USE
INTRODUCTION TO 4P CONNECTORS FOR THE AJ8 (J8) SWITCH
(produced by Nippon Tanshi Co., Ltd)
■ Switch mounting
Mount the switch with the hole cutting
dimensions shown in the dimensions.
Please contact us if you are considering
using a panel of other than the
recommended size and shape.
■ Regarding fastening lead wires to
terminals
1) When connecting the tab terminals,
use a .250 Quick-connect and insert the
terminals straight in. If they are skewed,
the terminals will require excessive
insertion force.
In addition, there is some variation in the
insertion force required for different
receptacles from different manufacturers,
so confirm how much force is needed
under actual conditions.
Do not solder wires onto tab terminals.
2) With manual soldering: Complete the
soldering connection work within 3
seconds with the tip of the soldering iron
at a temperature of 420°C or lower, and
take care not to apply any force to the
terminal area.
Avoid touching the switch with soldering
iron.
Refer to the diagram above, “soldering
position,” for details on the position where
a wire should be soldered to a terminal.
When soldering PC board terminals,
keep soldering time to within 5 seconds
at 270°C soldering bath or within 3
seconds at 350°C soldering bath.
3) The terminals should be connected in
such a way that they are not under
constant stress from the connecting
wires.
4) Terminal material is copper alloy which
may discolor due to finger’s oil or after a
long time. But that discoloration does not
effect actual performance.
■ Resistance to chemicals
To clean the switch unit, use a neutral
detergent diluted with water.
Do not use acidic or alkaline solvents as
they may damage the switch.
Furthermore, be careful not to get any of
the detergent solution inside of the switch
while cleaning it.
■ Environment
Avoid using and storing these switches in
a location where they will be exposed to
corrosive gases, silicon, or high dust
levels, all of which can have an adverse
effect on the contacts.
■ Take care not to drop the product as
it may impair perfomance.
Contact terminal and common terminal
Soldering position
When wrapping or soldering a wire
around a terminal, do so in the shaded
area indicated in the diagram at left.
Note: This connector for AJ8 (J8) switches is not
available from Panasonic.
Connectors for
AJ8 (J8) switch
Suitable switches: AJ8 (J8) switch, .250 Quick-connect terminal
(Note: Terminal guard long type switches are not suitable for this connector.)
• Housing
Product number: N1620-404
• Receptacle
Product number: 17168-2 (post-plated product for fine wires)
17168-M2 (material plated product for fine wires)
172131-M2 (for thick wires)
• If you have any questions, please directly contact:
Nippon Tanshi Co., Ltd.
Technical Terminology & Cautions for Use
–7– AECTB38E 201811-T
(Operation Switches)
TECHNICAL TERMINOLOGY
Technical Terminology & Cautions for Use
■ Rated values
Values indicating the characteristics and performance guarantee
standards of the switches. The rated current and rated voltage,
for instance, assume specific conditions.
■ Electrical life
The service life when the rated load is connected to the contact
and switching operations are performed.
■ Mechanical life
The service life when operated at a preset operating frequency
without passing electricity through the contacts.
■ Dielectric strength
Threshold limit value that a high voltage can be applied to a
predetermined measuring location for one minute without
causing damage to the insulation.
■ Insulation resistance
This is the resistance value at the same place the dielectric
strength is measured.
■ Contact resistance
This indicates the electrical resistance at the contact part.
Generally, this resistance includes the conductor resistance of
the spring and terminal portions.
■ Vibration resistance
Vibration range where a closed contact does not open for longer
than a specified time due to vibrations during use of the snap-
action switches.
■ Shock resistance
Max. shock value where a closed contact does not open for
longer than a specified time due to shocks during use of the
switches.
■ Allowable switching frequency
This is the maximum switching frequency required to reach the
end of mechanical life (or electrical life).
■ Temperature rise value
This is the maximum temperature rise value that heats the
terminal portion when the rated current is flowing through the
contacts.
■ Actuator strength
When applying a static load for a certain period on the actuator
in the operation direction, this is the maximum load it can
withstand before the switch loses functionality.
■ Terminal strength
When applying a static load for a certain period (in all directions
if not stipulated) on a terminal, this is the maximum load it can
withstand before the terminal loses functionality (except when
the terminal is deformed).
Technical Terminology & Cautions for Use
–8– AECTB38E 201811-T
TYPES OF LOAD
■ Resistance load
Resistance load is a power factor of 1 (cos
φ
= 1) where the load
is only for the resistance portion. The displayed switch rating
indicates the current capacity when using AC current.
■ DC load
Differing from AC, since the direction of current is fixed for DC,
the continuous arc time lengthens when the same voltage is
applied.
■ Incandescent lamp load
Since an inrush current of 10 to 15 times the rated current flows
for an instant when the switch is turned on for the lamp,
adhesion of the contacts may occur. Therefore, please take into
consideration this transient current when selecting a switch.
■ Induction load
Since arc generation due to reverse voltage can cause contact
failure to occur when there is an induction load (in relays,
solenoids and buzzers, etc.), we recommend you insert a
suitable spark quenching circuit (see figure below).
■ Motor load
Contacts may adhere due to the starting current at the start of
motor operation which is three to eight times the steady-state
current. Although it differs depending on the motor, since a
current flows that is several times that of the nominal current,
please select a switch taking into consideration the values in the
table below. To make the motor rotate in reverse, use an ON-
OFF-ON switch and take measures to prevent a multiplier
current (starting current + reverse current) from flowing.
A current that is approximately two times that of the starting
current will flow when reverse rotation is caused during
operation. Also, when using for a load that will cause transient
phenomena such as when operating the motor in reverse
rotation or switching the poles, an arc short (circuit short) may
occur due to the time lag between poles when switching. Please
be careful.
■ Capacitor load
In the case of mercury lamps, florescent lamps and the
capacitor loads of capacitor circuits, since an extremely large
inrush current flows when the switch is turned on, please
measure that transient value with the actual load and then either
use the product keeping within the range of the rated current or
after verifying the actual load.
Circuit example Notes
Switch contact
(1) r = more than 10 Ω
(2) In an AC circuit,
impedance of R is to be slightly smaller
than impedance of r and c.
Switch contact
Can be used for both AC and DC circuits.
r = R
C: 0.1 μF
Switch contact
For DC circuits only.
Switch contact
Can be used for both AC and DC circuits.
rc R
r
cR
R
diode
ZNR
Varistor
Induction load
Motor type Type Starting current
Three-phase
induction motor Squirrel-cage Approx. 5 to 8 times current listed on
nameplate
Single-phase
induction motor
Split-phase-start Approx. 6 times current listed on
nameplate
Capacitor-start Approx. 4 to 5 times current listed on
nameplate
Repulsion-start Approx. 3 times current listed on
nameplate
Example of 1-pole motor reverse rotation circuit
Good wiring Bad wiring
Example of single-phase induction motor
(capacitor) strong-weak switching circuit
Good wiring Bad wiring
Example of three-phase motor
reverse rotation circuit
Good wiring Bad wiring
MM Power
supply
Power
supply
MM
Power
supply
Weak
Strong
Strong
Strong
Strong
Weak
Weak
Power supply
Weak
M
M
Power
supply
Power
supply
Technical Terminology & Cautions for Use
–9– AECTB38E 201811-T
CAUTIONS FOR USE
■ Environment of use
1) Please consult us when using under the following conditions:
• Environments where hydrogen sulfide or other corrosive gases
are present.
• Environments where gasoline, thinner or other flammable,
explosive gases are present.
• Dusty environments (for non-seal type snap action switches).
• Use in environments not in the prescribed temperature or
humidity range.
• Places with low air pressure.
2) Unless specified the product will not be constructed to
withstand water, oil or explosions. Please inquire if you intend to
use the product in special applications.
■ Usage, storage, and transport conditions
1) During usage, storage, or transportation, avoid locations
subject to direct sunlight and maintain normal temperature,
humidity, and pressure conditions.
2) The allowable specifications for environments suitable for
usage, storage, and transportation are given below.
(1) Temperature: The allowable temperature range differs for
each switch, so refer to the switch’s individual specifications.
(2) Humidity: 5 to 85% R.H.
(3) Pressure: 86 to 106 kPa
The humidity range varies with the temperature. Use within the
range indicated in the graph below.
(The allowable temperature depends on the switch.)
• Condensation will occur inside the switch if there is a sudden
change in ambient temperature when used in an atmosphere of
high temperature and high humidity. This is particularly likely to
happen when being transported by ship, so please be careful of
the atmosphere when shipping. Condensation is the
phenomenon whereby steam condenses to cause water
droplets that adhere to the switch when an atmosphere of high
temperature and humidity rapidly changes from a high to low
temperature or when the switch is quickly moved from a low
humidity location to one of high temperature and humidity.
Please be careful because condensation can cause adverse
conditions such as deterioration of insulation, coil cutoff, and
rust.
• Condensation or other moisture may freeze on the switch when
the temperatures is lower than 0°C 32°F. This causes problems
such as sticking of movable parts or operational time lags.
• The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
• Storage for extended periods of time (including transportation
periods) at high temperatures or high humidity levels or in
atmospheres with organic gases or sulfide gases may cause a
sulfide film or oxide film to form on the surfaces of the contacts
and/or it may interfere with the functions. Check out the
atmosphere in which the units are to be stored and transported.
• In terms of the packing format used, make every effort to keep
the effects of moisture, organic gases and sulfide gases to the
absolute minimum.
■ Wiring
1) When using a PC board terminal switch as soldering
terminals, use thin lead wires and be sure to wind them on the
terminals before soldering.
2) Cautions when soldering
Perform soldering quickly in accordance with the specified
conditions. Be careful not to let flux flow into the product. When
no instruction is specified, use a soldering iron with a tip
temperature of 350°C or lower and complete soldering within
five seconds. Do not pull on the lead wires immediately after
soldering. Wait some time before verifying.
■ Others
1) Failure modes of switches include short-circuiting, open-
circuiting and temperature rises. If this switch is to be used in
equipment where safety is a prime consideration, examine the
possible effects of these failures on the equipment concerned,
and ensure safety by providing protection circuits or protection
devices. In terms of the systems involved, make provision for
redundancy in the design and take steps to achieve safety
design.
2) The ambient operating temperature (and humidity) range
quoted is the range in which the switch can be operated on a
continuous basis: it does not mean that using the switch within
the rating guarantees the durability performance and
environment withstanding performance of the switch. For details
on the performance guarantee, check the specifications of each
product concerned.
3) Even if 2-pole, 3-pole or 4-pole switches are used as single-
pole switches in order to increase contact reliability, please keep
the maximum current no higher than the rated value.
4) If there is the possibility of a short between poles, please use
an in-phase circuit as shown below or provide a spare pole.
5) Be careful not to drop the product as this may cause loss of
functionality.
6) Do not apply an unreasonable vertical force against the
direction of operation of the product.
7) Use your hand to operate the actuator.
(Operation using a tool such as a screwdriver or hammer can
cause breakdown.)
Tolerance range
(Avoid
condensation when
used at temperatures
higher than 0°C32°F)
(Avoid freezing when
used at temperatures
lower than 0°C32°F)
85
5
–40
–40 0
+32 +85
+185
Temperature, °C°F
Humidity, %R.H.
Bad example
Good example (1)
Good example (2)
Load 1
Load 1
Heteropolar circuit
In-phase circuit
Load 2
Load 1
Spare pole
Load 2
Load 2
