SONG CHUAN
230
SONG CHUAN
Contact Rating
Ordering Information
Type List
Features
ˎġSmallest and slim type PCB Automotive relay.
ˎġHigh rating 20A with maximum switching current up
to 30A.
ˎġHigh Temperature withstand up to 125ʨ.
ˎġSingle or twin relays are both available.
ˎġComplies with RoHS-Directive 2011/65/EU, and ELV-
Directive 2000/53/EC.
1. 103 -- Basic series designation
2. Blank -- Single relay
T -- Twin relay
3. 1A -- Single pole normally open
1C -- Single pole double throw
4. H -- Contact material AgSnO
5. C -- Flux tight
V -- Sealed type
S -- Sealed type washable
103 - 1A H - C
1 2 3 4 5
Designation (provided with)
Terminal
style
Contact ġ
form ġFlux tight Sealed type Sealed type
washable
103-1AH-C 103-1AH-V 103-1AH-S1A (SPNO)
103T-1AH-C 103T-1AH-V 103T-1AH-S
103-1CH-C 103-1CH-V 103-1CH-S
PCB terminal
1C (SPDT)
103T-1CH-C 103T-1CH-V 103T-1CH-S
Resistive loadġNO/NC : 20A/10A 14VDC
Inrush 30A, steady state 10A 14VDC, 750K ops.
Motor loadġ
Motor Lock : 20A 14VDC, 200K ops.
Rated
voltage
(V)
Rated current
±10 % at 23°C
(mA)
Coil resistance
±10 % at 23°C
(Ω)
Max. continuous
voltage
at 85°C
Pick up
voltage(Max.)
at 23°C
Drop out
voltage(Min.)
at 23°C
Power consumption
at rated
voltage
6 107 56
9 70.8 127
12 53.3 225
approx. 0.64W
24 26.7 900
133 % of
rated
voltage
60 % of
rated
voltage
5 % of
rated
voltage
Coil Rating (DC)
6
6. -- Coil voltage (please refer to the
coil rating data for the availability)
1A (SPNO) ×2
1C (SPDT) ×2
Note : (1) With continuous contact current 15A.
(1)
103
SONG CHUAN
SONG CHUAN
231
Specification
Note 烉(1) Initial value. Operate and release time excluding contact bounce.
(2) Unless otherwise specified, all tests are under room temperature and humidity.
(3) Consider the heat of PCB is necessary, please check the actual condition of PCB.
(4) Applying no diode to this relay. The life expectancy will be lower when a diode is used. To use
a varistor (ZNR) could absorb the coil surge of relay that is recommended.
(5) Do not use the relay exceeding the coil rating, contact rating and life expectancy, or this may cause
the risk of overheating.
(6) To assure optimum performance, avoid the relay from dropping, hitting, or other unnecessary shocks.
(7) Do not switch the contacts without any load as the contact resistance may become increased rapidly.
(8) Usage, transport and storage conditions
Ɣ7HPSHUDWXUH焍+125°C
Ɣ+XPLGLW\WR5+
Ɣ3UHVVXUHWRN3D
Ɣ)XUWKHUPRUHWKHKXPLGLW\UDQJHYDULHVZLWKWKHWHPSHUDWXUH6RXVHUHOD\V
within the range indicated in the graph below.
(9) Please contact Song Chuan for the detailed information.
Contact material AgSnO alloy
Contact voltage drop (1) Typ. 5PV at 1$
Operate time (1) 1 ms Max.
Release time (1) 5 ms Max.
Insulation resistance (1)  0 Ω0LQ'&9
Between open contact :$&9+]PLQ
Dielectric strength (1)
Between contact and coil :$&9+]PLQ
Operating extremes
Vibration resistance
Damage limits
Operating extremes *
Shock resistance
Damage limits *
 RSV
Mechanical IUHTXHQF\RSVKU
Electrical  RSV
Life expectancy
(frequency 36 RSVKU
Operating ambient temperature 焍+125°&QRIUHH]LQJ
Weight Approx. 4 g
焍+]  *
焍+]  *
Tolerance range
+umidity, R+
(Avoid
free]ing when
used at
temperatures
lower than
°C)
(Avoid
condensation
when used at
temperatures
higher than °C )
Temperature, °C
103
SONG CHUAN
232
SONG CHUAN
103
PC Board Layout
BOTTOM VIEW
(0.031)
(0.150)
3.8
(0.039)
1-2
0.8
(0.189)
4.8
(0.331)
1.6-3
(0.063)
4
(0.157)
8.4
(0.323)
0.8
(0.031)
(0.150)
3.8 8.2
4.8
1-4
(0.039)
(0.133)
(0.189)
3.4
8.4
(0.331)
1.6-6
(0.063)
4.8
(0.157)
4
(0.189)
ȟ103Tȟ103
1A 1C 1A 1C
(0.323)
0.8
(0.031)
(0.150)
3.8 8.2
4.8
1-4
(0.039)
(0.133)
(0.189)
3.4
8.4
(0.331)
1.6-4
(0.063)
4.8
(0.157)
4
(0.189)
(0.031)
(0.150)
3.8
(0.039)
1-2
0.8
(0.189)
4.8
(0.331)
1.6-2
(0.063)
4
(0.157)
8.4
Outline Dimensions
ȟ103 ȟ103T
14.4
(0.567)
7.6
(0.299)
(0.539)
13.7
(0.047)
1.2-3
(0.138)
3.5
(0.024)
0.6-2
(0.012)
0.3
(0.012)
0.3-5 0.3-10
(0.012)
(0.622)
15.8
(0.567)
14.4
0.6-4
(0.024)
(0.047)
0.3
(0.012)
(0.539)
13.7
(0.138)
3.5
1.2-6
MORE THAN: 20(0.787) ±1(0.039)
20(0.787) ±0.5(0.020)
5(0.197) ±0.3(0.012)
LESS THAN: 1(0.039) ±0.1(0.004)
TOLERANCE:
Wiring Diagram
BOTTOM VIEW
ȟ103Tȟ103
1A 1C 1A 1C
SONG CHUAN
SONG CHUAN
233
103
———— All specications subject to change. Please contact Song Chuan for update. ————
103
Engineering Data
Life expectancy
14VDC resistive load/switching current(A)
Number of operations
1
10
0
7
5
6
10
10
5 10 15 20
1A
1B
25
(normally open contact)for risistive loads
Safe breaking,arc extinguished
10
1 2 3
20
30
40
50
70
60
75
5 7 10 20
15
50W
100W
280W
0.5
Switching current(A)
Switching voltage(VDC)
Ambient temperature vs. coil voltage for continuous contact load
Applied coil voltage(% of rated nominal)
Max.allowable ambient temperature
Maximum mean coil temperature=180ʨ
10090
70
110
120
80
90
110
100
140
130
150
120
20A
150 160
60
130 140
15A
10A
Max. DC load breaking capacity
DC current(A)
20
0.1 0.2
DC voltage(V)
50
0.5 1 5
Resistive load
0
30
40
100
10
14
120
2015
% of Nominal coil voltage (at 23ʨ)
3
5
avg
min
max
Operate time/Release time
2
6
14013012011090 100
Time (ms)
70
4
80 150
1
0
min
avg
max
Operate time
Release time