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CENTIGRID®AND TO-5
SERIES
732
COMMERCIAL
SENSITIVE TO-5 RELAYS
DPDT
DESCRIPTION
The TO-5 relay, originally conceived and developed by Teledyne, has become
one of the industry standards for low-level switching from dry circuit to 1
ampere. Designed for high-density PC board mounting, the 732 relay is one of
the most versatile ultraminiature relays available because of its small size and
low coil power dissipation.
The following unique construction features and manufacturing techniques
provide excellent resistance to environmental extremes and overall high
reliability:
• All welded construction.
• Unique uni-frame design providing high magnetic efficiency and mechanical
rigidity.
• High force/mass ratios for resistance to shock and vibration.
• Advanced cleaning techniques provide maximum assurance of internal
cleanliness.
• Precious metal alloy contact material with gold plating assures excellent
high current and dry circuit switching capabilities.
The 732D relay has an internal discrete silicon diode for coil transient
suppression. The hybrid Series 732TN relay has an internal silicon diode and
transistor driver. The integrated packaging of the relay with its associated
semiconductor devices greatly reduces PC board floor space requirements as
well as component installation costs.
By virtue of its inherently low intercontact capacitance and contact circuit
losses, the 732 relay has proven to be an excellent ultraminiature RF switch
for frequency ranges well into the UHF spectrum. A typical RF application for
the TO-5 relay is in handheld radio transceivers, wherein the combined
features of good RF performance, small size, low coil power dissipation and
high reliability make it a preferred method of Transmit-Receive switching (see
Figure 1).
INTERNAL CONSTRUCTION
UPPER
STATIONARY
CONTACT
LOWER
STATIONARY
CONTACT
UNI-FRAME
ARMATURE
MOVING
CONTACT
SERIES
DESIGNATION RELAY TYPE
732 DPDT basic relay
732D DPDT relay with internal diode for coil transient suppression
732TN DPDT relay with internal transistor driver and coil transient suppression diode
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Storage –65°C to +125°C
Operating –55°C to +85°C
Vibration
(General Note 1) 10 g’s to 500 Hz
Shock
(General Note 1) 30 g’s,
6 msec, half-sine
Enclosure Hermetically sealed
Weight 0.16 oz. (4.50g) max.
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CENTIGRID®AND TO-5
0
.1
.2
.3
.4
10
20
30
40
50
60
70 .01 0.5 .1 .5 1.0
FREQUENCY (GHz)
FIGURE 1
TYPICAL RF PERFORMANCE
1.92
1.22
1.07
1.02
1.01
1.00
1.00
VSWR
300
250
200
150
100
50
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD CURRENT (AMPS DC)
FIGURE 2
TYPICAL DC CONTACT RATING (RESISTIVE)
LOAD VOLTAGE (VDC)
dB
RETURN LOSS (VSWR)
INSERTION LOSS
ISOLATION ACROSS CONTACTS
ISOLATION ACROSS POLES
SERIES 732
GENERAL ELECTRICAL SPECIFICATIONS (@25°C) (Notes 2 & 3)
DETAILED ELECTRICAL SPECIFICATIONS (@25°C) (Note 3)
Contact Arrangement 2 Form C (DPDT)
Rated Duty Continuous
Contact Resistance 0.15 ohm max. before life; 0.25 ohm max. after life at 1A/28Vdc (measured 1/8" from header)
Contact Load Ratings (DC)
(See Fig. 2 for other DC
resistive voltage/current ratings)
Resistive: 1 Amp/28Vdc
Inductive: 200 mA/28Vdc (320 mH)
Lamp: 100 mA/28Vdc
Low Level: 10 to 50 µs/10 to 50mV
Contact Load Ratings (AC) Resistive: 250 mA/115Vac, 60 and 400 Hz (Case not grounded)
100 mA/115Vac, 60 and 400 Hz (Case grounded)
Contact Life Ratings 10,000,000 cycles (typical) at low level
1,000,000 cycles (typical) at 0.5A/28Vdc resistive
100,000 cycles min. at all other loads specified above
Contact Overload Rating 2A/28Vdc Resistive (100 cycles min.)
Contact Carry Rating Contact factory
Coil Operating Power 200 milliwatts typical at nominal rated voltage
Operate Time 6.0 msec max. at nominal rated coil voltage
Release Time 732: 3.0 msec max. 732D, 732TN: 7.5 msec max.
Intercontact Capacitance 0.4 pf typical
Insulation Resistance 1,000 megohms min. between mutually isolated terminals
Dielectric Strength Atmospheric pressure: 350 Vrms/60Hz
Negative Coil Transient (Vdc) 732D, 732TN 2.0 max
Diode P.I.V. (Vdc) 732D, 732TN 60 min.
732TN Transistor
Characteristics
Base Voltage to Turn Off (Vdc) 0.3 min
Emitter-base breakdown Voltage (BVEBO) (Vdc) 6.0 min
Collector-base breakdown Voltage (BVCBO) (@25°C & lc = 100 µA) (Vdc) 60 min
PERFORMANCE CURVES (Note 2)
BASE PART
NUMBERS
(See Note 8 for full P/N example)
732-5
732D-5
732TN-5
732-6
732D-6
732TN-6
732-9
732D-9
732TN-9
732-12
732D-12
732TN-12
732-18
732D-18
732TN-18
732-26
732D-26
732TN-26
Coil Voltage (Vdc) Nom. 5.0 6.0 9.0 12.0 18.0 26.5
Max. 7.5 10.0 15.0 20.0 30.0 40.0
Coil Resistance (Ohms ±20% @25°C) (732TN: See Note 4) 100 200 400 850 1600 3300
Pick-up Voltage (Vdc, Max.) Pulse Operated 3.5 4.5 6.8 9.0 13.5 18.0
732TN Base Current to Turn On (mAdc, Min.) (Note 5) 1.50 1.00 0.75 0.47 0.38 0.24
732 Page 101 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2009 TELEDYNE RELAYS
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CENTIGRID®AND TO-5
.370
(9.40)
DIA. MAX.
CASE DETAIL
.335
(8.51)
DIA. MAX.
.385 (9.76) MAX.
WIRE LEAD: .75 (19.05) MIN.
.017 (.43) DIA.
+.002 (.05)
–.001 (.03) DIMENSIONS ARE SHOWN IN INCHES (MILLIMETERS)
TERMINAL LOCATIONS AND PIN NUMBERS (REF. ONLY)
(Viewed from Terminals)
10
1
2
3
4
5
6
7
8
9
TRANSISTOR BASE
CONNECTION FOR
732TN ONLY
.035 (.89)
.010 (0.25)
.031 (.79)
±.003 (0.08)
36°±3°
TYP.
.200 (5.08)
.010 (.25) DIA.
732
732D
SCHEMATICS ARE VIEWED FROM TERMINALS
732TN
SERIES 732
OUTLINE DIMENSIONS SCHEMATIC DIAGRAM
GENERAL NOTES
1. Relay contacts will exhibit no chatter in excess of 10 µsec or transfer in
excess of 1 µsec.
2. “Typical” characteristics are based on available data and are best estimates.
No on-going verification tests are performed.
3. Unless otherwise specified, parameters are intial values.
4. For Reference Only. Coil resistance not directly measurable on 732TN relays.
5. Circuit is typical for all Series 732TN. Values shown are for 732TN-5 relay
and apply for full temperature range.Limit base-emitter current to 15 mADC.
6. Unless otherwise specified, relays will be supplied with either gold-plated or
solder-coated leads.
7. The slash and characters appearing after the slash are not marked on the
relay.
8.
Vcc Vr
Notes:
Logic 1 activates the relay.
Logic 0 de-activates the relay.
Vcc = logic bias power.
Vr = coil energization voltage.
Pin 10
Pin 9
Pin 1
Logic element
1 = 0.24 to 1.50mA
0 = 0.3Vdc min.
TYPICAL LOGIC INTERFACE
(See Note 5)
Teledyne Part Numbering System for Commercial Relays
732 X M - 26 / S Q
Pad Option
(See Appendix)
Relay Series
Optional Ground Pin
(See Appendix )
Coil Voltage
Q= Solder Coated Leads
G= Gold Plated Leads
(Notes 6 and 7)
S= 0.187" leads
(Note 7)
