SERIES
HIGH-SHOCK,
HIGH-PERFORMANCE
TO-5 RELAY
DPDT
SERIES
DESIGNATION
412K
422K
DPDT high-shock relay
DPDT high-shock magnetic-latching relay
RELAY TYPE
412K
422K
INTERNAL CONSTRUCTION
UNI-FRAME
DESCRIPTION
UPPER
STATIONARY
CONTACT
LOWER
STATIONARY
CONTACT
HIGH-PERFORMANCE
ARMATURE
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, its small size and low coil power dissipation make the TO-5
relay one of the most versatile subminiature relays available.
The K Series high-shock TO-5 relays are designed to withstand shock levels up to 4000
g’s, .5 millisecond duration. Special material selection and construction details provide
assurance that critical elements of the relay structure and mechanism will not be
permanently displaced or damaged as a result of extremely high g level shocks.
Typical applications:
• Commercial avionics aircraft control
• Commercial aircraft control systems
• Transportation systems (rail/truck)
By virtue of their inherently low intercontact capacitance and contact circuit losses, the
K Series relays have proven to be excellent subminiature RF switches for applications
with 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 T-R switching (see Figure 1 and 2).
MOVING
CONTACT
412K ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Vibration
(General Note 1)
(General
Note 1)
Shock
(General
Note 4)
–65°C to +125°C
30 g’s to 3000 Hz
75 g’s, 6 msec, half-sine
4000 g’s, 0.5 msec. axial
plane, half-sine
1000 g’s, 0.5 msec side
planes, half-sine
50 g’s
Hermetically sealed
0.09 oz. (2.55g) max.
422K ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Vibration
(General Note 1)
(General
Note 1)
Shock
(General
Note 4)
–65°C to +125°C
30 g’s to 3000 Hz
100 g’s, 6 msec, half-sine
2100 g’s, 0.5 msec. axial
plane, half-sine
750 g’s, 0.5 msec side
planes, half-sine
50 g’s
Hermetically sealed
0.10 oz. (2.84g) max.
PERMANENT MAGNET
MAGNETIC CIRCUIT A
SOFT IRON FRAME
PRINCIPLE OF OPERATION 422K
MAGNETIC CIRCUIT B
Acceleration
Enclosure
Weight
Energizing Coil B produces a magnetic field
COIL A
COIL B
opposing the holding flux of the permanent magnet
SOFT IRON
in Circuit B. As this net holding force decreases, the
SOFT IRON
CORE A
CORE B
attractive force in the air gap of circuit A, which also
AIR GAP
SOFT IRON
results from the flux of the permanent magnet,
ARMATURE
STATIONARY
CONTACT
becomes great enough to break the armature free of
Core B, and snap it into a closed position against
Core A. The armature then remains in this position
MOVING
CONTACT
upon removal of power from Coil B, but will snap
back to position B upon energizing Coil A. Since operation depends upon cancellation
of a magnetic field, it is necessary to apply the correct polarity to the relay coils as
indicated on the relay schematic.
When latching relays are installed in equipment, the latch and reset coils should not be
pulsed simultaneously. Coils should not be pulsed with less than rated coil voltage and
the pulse width should be a minimum of three times the specified operate time of the
relay. If these conditions are not followed it is possible for the relay to be in the
magnetically neutral position.
Acceleration
Enclosure
Weight
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
412K/422K Page
1
412K/422K/1203/Q1
SERIES 412K/422K
GENERAL ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Notes 2 & 3)
Contact Arrangement
Rated Duty
Contact Resistance
Contact Load Ratings (DC)
(See Fig. 3 for other DC
resistive voltage/current ratings)
Contact Load Ratings (AC)
Contact Life Ratings
(Note 6)
Contact Overload Rating
Contact Carry Rating
Coil Operating Power
Operate Time
Release Time
Contact Bounce
Intercontact Capacitance
Insulation Resistance
Dielectric Strength
Minimum Operate Pulse
2 Form C (DPDT)
Continuous
412K: 0.1 ohms max. before life; 0.2 ohms max. after life at 1A/28Vdc
422K: 0.15 ohms max. before life; .225 ohms max after life at 1A/28Vdc
Resistive:
Inductive:
Lamp:
Low Level:
Resistive:
1 Amp/28Vdc
200 mA/28Vdc (320 mH)
100 mA/28Vdc
10 to 50μA/10 to 50mV
250 mA/115Vac, 60 and 400 Hz (Case not grounded)
100 mA/115Vac, 60 and 400 Hz (Case grounded)
}
measured 1/8" below header
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
2A/28Vdc Resistive (100 cycles min.)
Contact factory
412K: 500 mW typ. @ 25°C
422K: 290 mW typ. @ 25°C
412K: 2.0 msec max.
422K: 1.5 msec max.
1.5 msec max. (412K only)
1.5 msec max.
0.4 pf typical
10,000 megohms min. between mutually isolated terminals
Atmospheric pressure: 500 Vrms/60Hz
70,000 ft.: 125 Vrms/60Hz
4.5 msec width @ rated voltage (422K only)
412K SERIES RELAY
DETAILED ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Note 2)
BASE PART
NUMBERS
Coil Voltage (Vdc)
Coil Resistance (Ohms ±10% @25°C)
Pick-up Voltage (Vdc, Max.)
Drop-out Voltage (Vdc)
Min.
Max.
Nom.
Max.
412K-5
5.0
5.8
50
4.3
0.14
2.5
412K-6
6.0
8.0
80
5.2
0.18
3.2
412K-9
9.0
12.0
160
7.6
0.35
4.9
412K-12
12.0
16.0
300
10.0
0.41
6.5
412K-18
18.0
24.0
600
14.3
0.59
10.0
412K-26
26.5
32.0
1350
21.0
0.89
13.0
HIGH-PERFORMANCE
422K SERIES RELAY
DETAILED ELECTRICAL SPECIFICATIONS (–65°C to +125°C unless otherwise noted) (Note 2)
BASE PART
NUMBERS
Coil Voltage (Vdc)
Coil Resistance (Ohms ±10% @25°C)
Set & Reset Voltage (Vdc, Max.)
Nom.
Max.
422K-5
5.0
5.8
61
3.5
422K-6
6.0
8.0
120
4.5
422K-9
9.0
12.0
280
6.8
422K-12
12.0
16.0
500
9.0
422K-18
18.0
24.0
1130
13.5
422K-26
26.5
32.0
2000
18.0
412K/422K Page
2
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
412K/422K/1203/Q1
SERIES 412K/422K
PERFORMANCE CURVES
(NOTE 2)
TYPICAL RF PERFORMANCE
TYPICAL RF PERFORMANCE
0
.1
.2
.3
.4
dB
INS
0
ER
TIO
NL
.1
OS
S
INS
ER
TIO
N
.2
.3
.4
dB
LOS
S
10
20
30
40
50
60
70
.01
0.5
.1
.5
1.0
FREQUENCY (GHz)
ATIO
ISOL
RETU
SS (V
RN LO
SWR)
1.92
1.22
VSWR
10
20
30
40
50
60
70
.01
0.5
IS
TION
OLA
SS
RN LO
RETU
R)
(VSW
1.92
1.22
1.02
1.01
1.00
1.00
VSWR
SC
ROS
N AC
S
ACT
ONT
O
ACR
OL
SS P
ES
1.07
1.02
1.01
1.00
1.00
C
OSS
ACR
S
ACT
ONT
1.07
N
ATIO
ISOL
S
S POLE
ACROS
LATION
ISO
.1
.5
1.0
FREQUENCY (GHz)
FIGURE 1 (412K)
TYPICAL DC CONTACT RATING (RESISTIVE)
FIGURE 2 (422K)
300
LOAD VOLTAGE (VDC)
250
200
150
100
50
HIGH-PERFORMANCE
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 3
OUTLINE DIMENSIONS
.370
(9.40)
DIA. MAX.
.335
(8.51)
DIA. MAX.
TERMINAL LOCATIONS AND PIN NUMBERS (REF. ONLY)
(Viewed from Terminals)
.031 (0.79)
±
.003 (0.08)
.031 (0.79)
±
.003 (0.08)
10
9
.035 (0.89)
±
.010 (0.25)
.035 (0.89)
±
.010 (0.25)
1
2
3
8
7
280 (7.11) MAX.
.200 (5.08)
±
.010 (.25) DIA.
WIRE LEAD: .75 (19.05) MIN.
412K
.200 (5.08)
36°
±3°
TYP.
±
.010 (.25) DIA.
422K
6
36°
±3°
TYP.
5
4
(.05)
.017 (.43) +.002 (.03) DIA.
±.001
DIMENSIONS ARE SHOWN IN INCHES (MILLIMETERS)
SCHEMATIC DIAGRAMS
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 initial values.
4. Survival only — contact chatter may occur.
COIL A
COIL B
412K
422K
CONTACTS SHOWN IN POSITION RESULTING
WHEN COIL A LAST ENERGIZED.
SCHEMATICS ARE VIEWED FROM TERMINALS
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
412K/422K Page
3
412K/422K/1203/Q1
Appendix A: Spacer Pads
Pad designation and
bottom view dimensions
Ø.150
[3.81]
(REF)
Height
For use with the following:
ER411T
ER412, ER412D, ER412DD
712, 712D, 712TN,
RF300, RF310, RF320
ER420, ER422D, ER420DD, 421,
ER421D, ER421DD, ER422, ER422D,
ER422DD, 722, 722D, RF341
ER431T, ER432T,
ER432, ER432D, ER432DD
732, 732D, 732TN, RF303, RF313,
RF323
RF312
ER411, ER411D, ER411DD
Dim. H
Max.
.295 (7.49)
.300 (7.62)
.305 (7.75)
.400 (10.16)
.410 (10.41)
.350 (8.89)
.295 (7.49)
.400 (10.16)
.300 (7.62)
.410 (10.41)
.305 (7.75)
.300 (7.62)
Dim
H
MAX
“M4” Pad for TO-5
Dim
H
MAX
ER431, ER431D, ER431DD
RF311
“M4” Pad for TO-5
RF331
172, 172D
Dim
H
MAX
ER114, ER114D, ER114DD,
J114, J114D, J114DD
ER134, ER134D, ER134DD,
J134, J134D, J134DD
RF100
.400 (10.16)
.315 (8.00)
.420 (10.67)
.320 (8.13)
.300 (7.62)
.400 (10.16)
.325 (8.25)
.305 (7.75)
“M4” Pad for Centigrid
®
.156
[3.96]
(REF)
RF103
122C, A152
Dim
H
MAX
ER116C, J116C
ER136C, J136C
RF180
.256
[6.5]
(REF)
“M9” Pad for Centigrid
®
A150
Notes:
1. Spacer pad material: Polyester ¿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 speci¿ed, tolerance is ± .010 (.25).
5. Add 10 m 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.
© 2008 Teledyne Relays
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Appendix A: Spreader Pads
Pad designation and
bottom view dimensions
.370 [9.4]
MAX SQ
.100
[2.54]
Height
For use with the following:
ER411T, J411T, ER412, ER412D
ER412DD, J412, J412D, J412DD
ER412T, J412T
712, 712D, 712TN
ER431T, J431T, ER432, ER432D
ER432DD, J432, J432D, J432DD
ER432T, J432T
732, 732D, 732TN
ER420, J420, ER420D, J420D
ER420DD, J420DD, ER421, J421
ER421D, J421D, ER421DD
J422D, ER422DD, J422DD, 722
ER411T
ER412, ER412D, ER412DD
J412, J412D, J412DD
Dim. H
Max.
.388 (9.86)
.393 (9.99)
.493 (12.52)
.503 (12.78)
.398 (10.11)
Dim
H
MAX
.150
[3.81]
.014
[0.36]
(REF)
.300
[7.62]
.100
[2.54]
.200
[5.08]
.370
[9.4]
MIN
“M” Pad 5/ 6/
.390 [9.91]
SQ
.100
[2.54]
.441 (11.20)
.451 (11.46)
.451 (11.46)
.546 (13.87)
.556 (14.12)
.100
[2.54]
.150
[3.81]
.300
[7.62]
Dim
H
MAX
.300
[7.62]
.150
[3.81]
.130
[3.3]
712, 712D
ER421, ER421D, ER421DD
722, 732D
ER431T
ER432, ER432D, ER432DD
732, 732D
ER411, ER411D, ER411DD
ER411TX
ER412X, ER412DX, ER412DDX
ER412TX
712X, 712DX, 712TNX
ER420X, ER420DX, ER420DDX
ER421X, ER421DX, ER421DDX
ER422X, ER422DX
ER422DDX, 722X, 722DDX
ER431, ER431D, ER431DD
ER431TX
ER432X, ER432DX, ER432DDX
ER432TX
732X, 732DX, 732TNX
“M2” Pad 7/ 8/
.370 [9.4]
MAX SQ
.100
[2.54]
.388 (9.86)
.393 (9.99)
.398 (10.11)
Dim
H
MAX
.150
[3.81]
.300
[7.62]
.100
[2.54]
.014
[0.36]
(REF)
.200
[5.08]
.370
[9.4]
MIN
.493 (12.52)
.503 (12.78)
“M3” Pad 5/ 6/ 9/
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 speci¿ed, tolerance is ± .010” (0.25).
5/. Add 25 m 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 m 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.)
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