Series 412
DPDT Non-Latching
Established Reliability / Military Relay
TO-5 RELAYS
ESTABLISHED RELIABILITY
MILITARY
DPDT
SERIES
RELAY TYPE
412
412D
412DD
412TN
DPDT basic relay
DPDT relay with internal diode for coil transient suppression
DPDT relay with polarity reversal protection and coil transient suppression diode
DPDT relay with internal transistor driver and coil transient suppression diode
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 expressly for high-density PC board mounting, its
small size and low coil power dissipation make the 412 relay one of the most
versatile ultraminiature relays available.
The following unique construction features and manufacturing techniques
provide excellent resistance to environmental extremes and overall high
reliability.
The 412 feature:
•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 412D and 412DD relays have internal discrete silicon diodes
for coil suppression and polarity reversal protection. The hybrid 412T relay
features an internal silicon suppression diode and transistor driver. This
hybrid package reduces required PC board floor space by reducing the
number of external components needed to drive the relay.
By virtue of its inherently low intercontact capacitance and contact circuit
losses, the 412 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 T-R switching
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Vibration
(General Note I)
Shock
(General Note I)
Acceleration
Enclosure
Weight
© 2016 TELEDYNE RELAYS
INTERNAL CONSTRUCTION
UPPER
STATIONARY
CONTACT
UNI-FRAME
ARMATURE
LOWER
STATIONARY
CONTACT
MOVING
CONTACT
–65°C to +125°C
30 g’s to 3000 Hz
75 g’s,
6ms half sine
50 g’s
Hermetically sealed
0.09 oz. (2.55g) max.
(800) 284-7007 • www.teledynerelays.com
412 Page 1
412\032016\Q1
Series 412
DPDT Non-Latching
Established Reliability / Military Relay
SERIES 412
GENERAL ELECTRICAL SPECIFICATIONS
(-65°C to +125°C unless otherwise noted) (Notes 2 &3)
Contact Arrangement
Rated Duty
Contact Resistance
2 Form C (DPDT)
Continuous
0.1 ohm max. before life; 0.2 ohm max. after life at 1A/28Vdc
(measured 1/8” from header)
Resistive:
Inductive:
Lamp:
Low level:
1 A/ 28 Vdc
200 mA/ 28 Vdc (320mH)
100 mA / 28 Vdc (320mH)
10 to 50
μA
@ 10 to 50 mV
Contact Load Rating (DC)
Contact Load Rating (AC)
Contact Life Ratings
Contact Overload Rating
Coil Operating Power
Contact Carry Rating
Operate Time
Release Time
Contact Bounce
Intercontact Capacitance
Insulation Resistance
Dielectric Strength
Negative Coil Transient (Vdc)
412D, 412DD, 412T
Diode P.I.V. (Vdc)
412D, 412DD, 412T
Resistive: 250 mA / 115Vac, 60 and 400 Hz (Case not grounded)
100 mA / 115 Vac, 60 and 400 Hz (Case grounded)
10,000,000 cycles (typical) at low level
1,000,000 cycles (typical) at 0.5 A / 28 Vdc resistive
100,000 cycles min. at all other loads specified above
2 A / 28 Vdc Resistive (100 cycles min.)
450 mW typical at nominal rated voltage
Contact Factory
2.0 ms max. at nominal rated coil voltage
412: 1.5 ms max.
1.5 ms max
0.4 pf typical
10,000 MΩ min. between mutually isolated terminals
500 Vrms / 60 Hz @ atmospheric pressure
125 Vrms / 60 Hz @ 70,000 ft
1.0 Vdc Max.
100 Vdc Min.
Base Voltage to Turn Off (Vdc)
0.3 min
6.0 min
75 min
412D, 412DD: 4.0 ms max.
412T: 7.5 ms max
412T Transistor
Characteristics
Emitter-Base breakdown Voltage (BV
EBO
)
(@25°C) (Vdc)
Collector-Base breakdown Voltage (BV
CBO
)
(@25°C & lc = 100
μA)
(Vdc)
412 Page 2
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2016 TELEDYNE RELAYS
412\032016\Q1
Series 412
DPDT Non-Latching
Established Reliability / Military Relay
412 Series
DETAILED ELECTRICAL SPECIFICATIONS (-65°C to +125°C unless otherwise noted) (Notes 3)
BASE PART NUMBERS
(412, 412D, 412DD, 412T)
Nom.
412-5
412D-5
412DD-5
412T-5
412-6
412D-6
412DD-6
412T-6
412-9
412D-9
412DD-9
412T-9
412-12
412D-12
412DD-12
412T-12
412-18
412D-18
412DD-18
412T-18
412-26
412D-26
412DD-26
412T-26
5.0
5.8
50
6.0
8.0
98
9.0
12.0
220
12.0
16.0
390
18.0
24.0
880
26.5
32.0
1560
Coil Voltage
Max.
412,
412D,
412T
412DD
Coil Resistance
(Ohms ±10% @25°C)
39
93.2
128.2
82.2
112.1
3.5
3.9
3.5
0.14
2.3
0.6
2.8
78
58.3
78.3
52.9
69.9
4.5
5.2
4.5
0.18
3.2
0.7
3.4
220
33.0
42.9
35.5
47.4
6.8
7.8
6.8
0.35
4.9
0.8
5.3
390
25.6
32.8
26.6
35.8
9.0
10.0
9.0
0.41
6.5
0.9
6.5
880
17.5
22.1
17.9
24.0
13.5
14.5
13.5
0.59
10.0
1.1
10.0
1560
14.8
18.5
14.7
19.8
18.0
19.0
18.0
0.89
13.0
1.4
13.0
Coil Curent (412DD)
(mAdc@25°C)
Coil Curent (412T)
(mAdc@25°C)
(Note 7)
Min.
Max.
Min.
Max.
412, 412D
Pick-up Voltage
(Vdc, Max)
412DD
412T (Note 7)
412,
412D,
412T
412DD
Min.
Max.
Min.
Max.
Drop-out Voltage
(Vdc)
PERFORMANCE CURVES (Note 2)
TYPICAL RF PERFORMANCE
TYPICAL DC CONTACT RATING (RESISTIVE)
LOAD VOLTAGE (VDC)
0
.1
.2
.3
.4
10
20
30
40
50
60
70
.01
dB
INSE
RTIO
N
LOSS
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
1.92
1.22
TU
RE
TS
1.07
TAC
CON
OSS
ACR
ES
1.02
N
L
ATIO
SS PO
1.01
ISOL
ACRO
TION
ISOLA
1.00
1.00
0.5
.1
.5
1.0
SS (V
RN LO
SWR)
FREQUENCY (GHz)
VSWR
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. Relays can be supplied with a spacer
pad. See appendix.
LOAD CURRENT (AMPS DC)
FIGURE 1
FIGURE 2
© 2016 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
412 Page 3
412\032016\Q1
Series 412
DPDT Non-Latching
Established Reliability / Military Relay
SERIES 412
OUTLINE DIMENSIONS
CASE DETAIL
.370
(9.40)
DIA. MAX.
.335
(8.51)
DIA. MAX.
TERMINAL LOCATIONS AND PIN NUMBERING (REF. ONLY)
(Viewed from Terminals)
.031 (.79)
± .003 (0.08)
TRANSISTOR BASE
CONNECTION FOR
712TN ONLY
10
9
1
2
3
6
5
4
.035 (.89)
± .010 (0.25)
.275 (6.99) MAX.
.200 (5.08)
± .010 (.25) DIA.
WIRE LEAD: .75 (19.05) MIN.
8
7
36° ±3°
TYP.
+.002 (.05)
.017 (.43) –.001 (.03) DIA.
(Viewed From Terminals)
SCHEMATIC DIAGRAMS
0 1
412
412D
412D
412TN
TYPICAL LOGIC INTERFACE
(See Note 8)
Vcc
Vr
Pin 1
Notes:
Logic 1 activates the relay.
Logic 0 de-activates the relay.
Vcc = logic bias power.
Vr = coil energization voltage.
Logic element
1 = 0.50 to 3.00mA
0=
0.3Vdc
Pin 10
Pin 9
412 Page 4
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2016 TELEDYNE RELAYS
412\032016\Q1
2
3
4
1
9
6
7
8
2
3
4
1
9
6
8
7
2
3
4
1
9
6
8
7
2
3
1
4
9
6
8
7
Series 412
DPDT Non-Latching
Established Reliability / Military Relay
SERIES 412
PART NUMBERING SYSTEM
ER
Established Reliability Designator
Relay Series
Ground Pin Option
(See Appendix A)
Pad Option
(See Appendix A)
Nominal Coil Voltage
(26 = 26.5 V)
412
Y
M4
-
26
A
/
S
Q
Q = Solder-Coated Leads
1
G = Gold-Plated Leads (RoHS Compliant)
R = RoHS Compliant Solder
2
S = 0.187” Leads
W = 1.5” Leads
No Suffix = 0.75” Leads
Screening and Reliability Level
(See Appendix B for Screening Options)
J
Military (JAN) Designator
Relay Series
Ground Pin Option
(See Appendix A)
Pad Option
(See Appendix A)
412 Z
M4
-
26
P
L
Screening and Reliability Level
(See Appendix B for Screening Options)
P = 0.187” Leads
W = 1.5” Leads
No Suffix = 0.75” Leads
Nominal Coil Voltage
(26 = 26.5 V)
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. FOR REFERENCE ONLY. COIL RESISTANCE NOT DIRECTLY MEASURABLE AT RELAY TERMINALS DUE TO INTERNAL SERIES
SEMICONDUCTOR. 412DD AND 412T ONLY.
5. UNLESS OTHERWISE SPECIFIED, RELAYS WILL BE SUPPLIED WITH EITHER GOLD-PLATED OR SOLDER-COATED LEADS.
6. THE SLASH AND CHARACTERS APPEARING AFTER THE SLASH ARE NOT MARKED ON THE RELAY.
7. LIMIT BASE EMITTER CURRENT TO 15 MADC.
8. APPLICABLE TO ALL COIL VOLTAGES. SEE BASE CURRENT TO TURN ON.
9. SCREENED HI-REL VERSIONS AVAILABLE. CONTACT FACTORY.
© 2016 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
412 Page 5
412\032016\Q1
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