Series 172
DPDT Non-Latching
Commercial Electromechanical Relay
CENTIGRID
COMMERCIAL RELAYS
DPDT
SERIES RELAY TYPE
172 DPDT basic relay
172D DPDT relay with internal diode for coil transient suppression
DESCRIPTION
The 172 Centigrid relay is an ultraminiature, hermetically sealed,
High force/mass ratios for resistance to shock and vibration.
armature relay for commercial applications. Its low profile height (.280)
Advanced cleaning techniques provide maximum assurance of
and .100 grid spaced terminals, which preclude the need for spreader pads,
internal cleanliness.
make it an ideal choice where extreme packaging density and/or close PC
Precious metal alloy contact material with gold plating assures excellent
board spacing are required.
high current and dry circuit switching capabilities.
The basic operating concept and internal structure are similar to
The Series 172 relay has an internal discrete silicon diode for coil transient
Teledynes DPDT 114 Centigrid relay. Unique construction features and
suppression.
manufacturing techniques provide overall high reliability and excellent
resistance to environmental extremes:
By virtue of its inherently low intercontact capacitance and contact
circuit losses, the 172 relay is an excellent subminiature RF switch for
The 172 feature:
frequencies well into the UHF spectrum (see Figure 1). Applications
include telecommunications, test instruments, mobile communications,
All welded construction.
attenuators, and automatic test equipment.
Unique uni-frame design providing high magnetic efficiency and
mechanical rigidity.
Part Numbering System
172 Z M4 - 26 / S Q
1
Q = Solder-Coated Leads
Relay Series G = Gold-Plated Leads (RoHS Compliant)
2
R = RoHS Compliant Solder
Ground Pin Option
(See Appendix)
S = 0.187 Leads
Pad Option
No Suf x = 0.75 Leads
(See Appendix)
Nominal Coil Voltage
(26 = 26.5 V, See Page 2 for more Voltages)
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
INTERNAL CONSTRUCTION
Temperature
65C to +125C
(Ambient)
Vibration
10 gs to 500 Hz
(General Note I)
Shock 30 gs,
(General Note I) 6ms half sine
Enclosure Hermetically sealed
Weight 0.15 oz. (4.3g) max.
2019 TELEDYNE RELAYS (800) 284-7007 www.teledynerelays.com 172 Page 1
172\112019\Q4Series 172
DPDT Non-Latching
Commercial Electromechanical Relay
SERIES 172
GENERAL ELECTRICAL SPECIFICATIONS (@25C)
Contact Arrangement 2 Form C (DPDT)
Rated Duty Continuous
Contact Resistance 0.15 max.
Resistive: 1 A/ 28 Vdc
Inductive: 200 mA/ 28 Vdc (320mH)
Contact Load Rating
Lamp: 100 mA / 28 Vdc (320mH)
Low level: 10 to 50 A @ 10 to 50 mV
5,000,000 cycles (typical) at low level
Contact Life Ratings 500,000 cycles (typical) at 0.5 A / 28 Vdc resistive
100,000 cycles min. at all other loads speci ed above
Contact Overload Rating 2 A / 28 Vdc Resistive (100 cycles min.)
Contact Carry Rating Contact Factory
Operate Time 6.0 msec max. at nominal rated coil voltage
Release Time 172: 3.0 ms max. 172D: 6.0 ms max.
Intercontact Capacitance 0.4 pf typical
Insulation Resistance 1,000 M min. between mutually isolated terminals
Dielectric Strength 300 Vrms (60 Hz) @ atmospheric pressure
Negative Coil Transient (Vdc) 2.0 Vdc Max.
Diode P.I.V. (Vdc) 60 Vdc Min.
DETAILED ELECTRICAL SPECIFICATIONS (@25C)
172-5 172-12 172-26
BASE PART NUMBERS (172, 172D)
172D-5 172D-12 172D-26
Nom.
5.0 12.0 26.5
Coil Voltage
Max. 5.8 16.0 32.0
Coil Resistance (Ohms 20%) 64 400 1600
Pick-up Voltage (Vdc, Max.) Pulse Operation 3.8 9.0 18.0
Coil Operating Power at Nominal Voltage (mW) 405 360 440
172 Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2019 TELEDYNE RELAYS
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