©2007 TELEDYNE RELAYS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 172 Page 1
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SERIES
172
CENTIGRID®
COMMERCIAL RELAYS
DPDT
DESCRIPTION
The 172 Centigrid®relay is an ultraminiature, hermetically sealed, armature
relay for commercial applications. Its low profile height (.280") and .100" grid
spaced terminals, which preclude the need for spreader pads, make it an ideal
choice where extreme packaging density and/or close PC board spacing are
required.
The basic operating concept and internal structure are similar to Teledyne’s
DPDT 114 Centigrid®relay. Unique construction features and manufacturing
techniques provide overall high reliability and excellent resistance to
environmental extremes:
• 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 Series 172 relay has an internal discrete silicon diode for coil transient
suppression.
By virtue of its inherently lowintercontact capacitance and contact circuit
losses,the 172 relayis an excellent subminiature RF switch for frequencies
well into the UHF spectrum (see Figure 1). Applications include
telecommunications, test instruments, mobile communications, attenuators,
and automatic test equipment.
INTERNAL CONSTRUCTION
UPPER
STATIONARY
CONTAC T
LOWER
STATIONARY
CONTAC T
UNI-FRAME
ARMATURE
MOVING
CONTAC T
SERIES
DESIGNATION RELAY TYPE
172 DPDT basic relay
172D DPDT relay with internal diode for coil transient suppression
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,
6msec, half-sine
Enclosure Hermetically sealed
Weight 0.15 oz. (4.3g) max.
172 Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ©2007 TELEDYNE RELAYS
www.teledynerelays.com 172/0107/Q1
TYPICAL DC CONTACT RATING (RESISTIVE)
LOAD VOLTAG E (VDC)
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
dB
RETURN LOSS (VSWR)
ISOLATION ACROSS CONTACTS
ISOLATION ACROSS POLES
300
250
200
150
100
50
00.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD CURRENT (AMPS DC)
FIGURE 2
INSERTION LOSS
7 8 1
62
543
.750 MIN.
(19.05)
.280 MAX
(7.11)
.335 SQ MAX.
(8.51)
CASE DETAIL TERMINAL LOCATIONS
(Viewed from Terminals, Numbers for Reference Only)
DIMENSIONS ARE SHOWN IN INCHES (MILLIMETERS)
.017 DIA
+.002
–.001
(.43 )
+.05
–.03
.375
SQ MAX.
(8.51)
.100 ±.010 TYP
(2.54 ±.25)
.035 REF
(.89)
.031 REF
(.79)
172
172D
SCHEMATIC IS VIEWED FROM TERMINALS
GENERAL NOTES
1. Relaycontacts 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 initial values.
4. Relays can be supplied with a spacer
pad. See appendix.
SERIES 172
GENERAL ELECTRICAL SPECIFICATIONS (@25°C) (Notes 2 & 3)
DETAILED ELECTRICAL SPECIFICATIONS (@25°C) (Note 3)
Contact Arrangement 2Form C (DPDT)
Rated Duty Continuous
Contact Resistance 0.15 ohm max. before life; 0.3 ohm max. after life at 1A/28Vdc (measured 1/8" from header)
Contact Load Ratings (DC)
(See Fig. 1 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 µA/10 to 50mV
Contact Life Ratings 5,000,000 cycles (typical) at low level
500,000 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
Operate Time 6.0 msec max. at nominal rated coil voltage
Release Time 172: 3.0 msec max. 172D: 6.0 msec max.
Intercontact Capacitance 0.4 pf typical
Insulation Resistance 1,000 megohms min. between mutually isolated terminals
Dielectric Strength Atmospheric pressure: 300 Vrms/60Hz
Negative Coil Transient 172 2.0 Vdc Max.
Diode P.I.V. 172D 60 Vdc Min.
BASE PART
NUMBERS 172-3
172D-3
172-5
172D-5
172-12
172D-12
172-26
172D-26
Coil Voltage (Vdc) Nom. 3.0 5.0 12.0 26.5
Max. 3.6 5.8 16.0 32.0
Coil Resistance (Ohms ±20%) 39 64 400 1600
Pick-up Voltage (Vdc, Max.) Pulse Operation 2.25 3.8 9.0 18.0
Coil Operating Power at Nominal Voltage (Milliwatts) 235 405 360 440
OUTLINE DIMENSIONS (Note 4)
PERFORMANCE CURVES (Note 2)
SCHEMATIC DIAGRAM
Pad designation and
bottom view dimensions Height For use with the following: Dim. H
Max.
“M4” Pad for TO-5
ER411T
ER412, ER412D, ER412DD .295 (7.49)
712, 712D, 712TN,
RF300, RF310, RF320 .300 (7.62)
ER420, ER422D, ER420DD, 421,
ER421D, ER421DD, ER422, ER422D,
ER422DD, 722, 722D, RF341
.305 (7.75)
ER431T, ER432T,
ER432, ER432D, ER432DD .400 (10.16)
732, 732D, 732TN, RF303, RF313,
RF323 .410 (10.41)
RF312 .350 (8.89)
“M4” Pad for TO-5
ER411, ER411D, ER411DD .295 (7.49)
ER431, ER431D, ER431DD .400 (10.16)
RF311 .300 (7.62)
RF331 .410 (10.41)
“M4” Pad for Centigrid®
172, 172D .305 (7.75)
ER114, ER114D, ER114DD,
J114, J114D, J114DD .300 (7.62)
ER134, ER134D, ER134DD,
J134, J134D, J134DD .400 (10.16)
RF100 .315 (8.00)
RF103 .420 (10.67)
“M9” Pad for Centigrid®
122C, A152 .320 (8.13)
ER116C, J116C .300 (7.62)
ER136C, J136C .400 (10.16)
RF180 .325 (8.25)
A150 .305 (7.75)
Notes:
1. Spacer pad material: Polyester fi lm.
2. To specify an “M4” or “M9” spacer pad, refer to the mounting variants portion of the part numbering
example in the applicable datasheet.
3. Dimensions are in inches (mm).
4. Unless otherwise specifi ed, tolerance is ± .010 (.25).
5. Add 10 mΩ to the contact resistance show in the datasheet.
6. Add 0.01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet.
Ø.150
[3.81]
(REF)
Dim H
MAX
Dim H
MAX
Dim H
MAX
.156
[3.96]
(REF)
.256
[6.5]
(REF)
Dim H
MAX
Appendix A: Spacer Pads
© 2008 Teledyne Relays SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Pad designation and
bottom view dimensions Height For use with the following: Dim. H
Max.
“M” Pad 5/ 6/
ER411T, J411T, ER412, ER412D
ER412DD, J412, J412D, J412DD
ER412T, J412T
.388 (9.86)
712, 712D, 712TN .393 (9.99)
ER431T, J431T, ER432, ER432D
ER432DD, J432, J432D, J432DD
ER432T, J432T
.493 (12.52)
732, 732D, 732TN .503 (12.78)
ER420, J420, ER420D, J420D
ER420DD, J420DD, ER421, J421
ER421D, J421D, ER421DD
J422D, ER422DD, J422DD, 722
.398 (10.11)
“M” Pad 7/ 8/
ER411T
ER412, ER412D, ER412DD
J412, J412D, J412DD
.441 (11.20)
712, 712D .451 (11.46)
ER421, ER421D, ER421DD
722, 732D .451 (11.46)
ER431T
ER432, ER432D, ER432DD .546 (13.87)
732, 732D .556 (14.12)
“M” Pad 5/ 6/ 9/
ER411, ER411D, ER411DD
ER411TX
ER412X, ER412DX, ER412DDX
ER412TX
.388 (9.86)
712X, 712DX, 712TNX .393 (9.99)
ER420X, ER420DX, ER420DDX
ER421X, ER421DX, ER421DDX
ER422X, ER422DX
ER422DDX, 722X, 722DDX
.398 (10.11)
ER431, ER431D, ER431DD
ER431TX
ER432X, ER432DX, ER432DDX
ER432TX
.493 (12.52)
732X, 732DX, 732TNX .503 (12.78)
Notes:
1. Spreader pad material: Diallyl Phthalate.
2. To specify an “M”, “M2” or “M3” spreader pad, refer to the mounting variants portion of the part number example
in the applicable datasheet.
3. Dimensions are in inches (mm).
4. Unless otherwise specifi ed, tolerance is ± .010” (0.25).
5/. Add 25 mΩ to the contact resistance shown in the datasheet.
6/. Add .01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet.
7/. Add 50 mΩ to the contact resistance shown in the datasheet.
8/. Add 0.025 oz (0.71 g) to the weight of the relay assembly shown in the datasheet.
9/. M3 pad to be used only when the relay has a center pin (e.g. ER411M3-12A, 722XM3-26.)
.370 [9.4]
MAX SQ
.150
[3.81]
.100
[2.54]
.200
[5.08]
.300
[7.62]
.100
[2.54] Dim H
MAX
.370
[9.4]
MIN
.014
[0.36]
(REF)
.390 [9.91]
SQ
.300
[7.62]
.100
[2.54]
.300
[7.62]
.100
[2.54] .150
[3.81]
.150
[3.81]
.130
[3.3]
Dim H
MAX
.370 [9.4]
MAX SQ
.150
[3.81]
.100
[2.54]
.200
[5.08]
.300
[7.62]
.100
[2.54] Dim H
MAX
.370
[9.4]
MIN
.014
[0.36]
(REF)
Appendix A: Spreader Pads
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.100
[2.54]
.100
[2.54]
.100
[2.54]
"Y" POSITION
"Z" POSITION
.100
[2.54]
.100
[2.54]
.100
[2.54]
"W" POSITION
"U" POSITION
(ER116C and ER136C only)
"X" POSITION
"Z" POSITION
"Y" POSITION
.050
[1.27]
36°±3°
Ø.200
[Ø5.08]
"Z" POSITION
"Y" POSITION
"X" POSITION
45°±3°
"Z" POSITION
"Y" POSITION
Ø.200
[Ø5.08]
Centigrid® Relays:
RF100, RF103, ER114, ER134, 172
Centigrid® Relays:
RF180, ER116C, 122C, ER136C
TO-5 Relays:
ER411T, ER412, ER412T, ER420, ER421, ER422,
ER431T, ER432, ER432T, 712, 712TN, 400H, 400K,
400V, RF300, RF303, RF341, RF312, RF310, RF313,
RF320, RF323
TO-5 Relays:
ER411, ER431, RF311, RF331
NOTES
1. Terminal views shown
2. Dimensions are in inches (mm)
3. Tolerances: ± .010 (±.25) unless otherwise specifi ed
4. Ground pin positions are within .015 (0.38) dia. of true position
5. Ground pin head dia., 0.035 (0.89) ref: height 0.010 (0.25) ref.
6. Lead dia. 0.017 (0.43) nom.
Indicates ground pin position
Indicates glass insulated lead position
Indicates ground pin or lead position
depending on relay type
Appendix A: Ground Pin Positions
© 2008 Teledyne Relays SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
