ENGINEERING DATA SHEET TDH-1610
ON RELEASE FIXED PERIOD
1PNO (SSO)
APPLICATION NOTE:
101
APPLICABLE SOCKETS:
SM-1000-003
FEATURES
● Small size and weight
● High-reliability design
● Hermetically sealed
● High transient immunity
● Qualified to MIL-PRF-83726/25
● Compatible with M12883/52 & /53 socket module and track mount
PRINCIPLE TECHNICAL CHARACTERISTICS
Enclosure:Hermetic Sealed per
MIL-STD-883, Method 1014
Condition B,C
Yes
Finish: per MIL-T-10727 Tin Plate
Terminals:
Gold Plate per MIL-G-45204
Type II, Class 2, Grade C
Plug-in
Weight 0.56 Ounce max.
DESCRIPTION
The TDH-1610 Time Delay Relays have been designed with thick film hybrid microelectronics timing circuits and
are packaged in a hermetically sealed military style enclosure. The TDH-1610 series are qualified to MIL-PRF-
83726/25 and designed to withstand severe environmental conditions encountered in military/aerospace
applications. These relays are suited for use in power control, communication circuits and many other
applications where power switching and high reliability are required over a wide temperature range.
www.leachintl.com
North America
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622 USA
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
Europe, SA
2 Rue Goethe
57430 Sarralbe
France
Tel: (33) 3 87 97 98 97
Fax: (33) 3 87 97 84 04
Asia-Pacific Ltd.
20/F Shing Hing Commercial Bldg.
21-27 Wing Kut Street
Central, Hong Kong
Tel: (852) 2 191 2886
Fax: (852) 2 389 5803
Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component.
Date of issue: 3/06 - 73 - Page 1 of 3
ELECTRICAL SPECIFICATION TDH-1610
Input (Control) Parameters
Timing:
a. Operation, Time Delay on
b. Method
c. Range
d. Accuracy
Release
Fixed Period
0.05 to 500 Seconds
±10% [1]
Recycle Time 10 ms, min [5]
Operations: (X1-X2)
a. Input & Control Voltage
b. Operating Current 20-30 Vdc
10 mA, Max @ +25° C
Transients: MIL-STD-704A, Limit 1
a. Spike Susceptibility
b. Positive, Transients
c. Self-Generated Spikes
+80 Volts Max
±600 Volts Max
None
Electromagnetic Interference Per MIL-STD-461A Class 1D [3]
Power Loss 1 ms [2]
Output (Load) Parameters
Contact Form
Contact Rating
Voltage Drop, Maximum
Leakage Current, Maximum:
a. at 28 Vdc and 25° C
d. at 28 Vdc and 125° C
SPST
150 mA
2 Vdc
1 Microampere
10 Microamperes
Dielectric Strength:
a. @ Sea Level, 60 Hz
b. @ 80,000 ft., 60 Hz 1000 Vrms [4]
350 Vrms
Insulation Resistance @ 500 Vdc 1000 M Ω [4]
GENERAL CHARACTERISTICS
Ambient Temperatures Range:
a. Operating
b. Non-Operating -55 to +125° C
-55 to +125° C
Vibration:
a. Sinusoidal
10-55 Hz 0.06" DA
55-500 Hz 10 G
500-3000 Hz 20 G
b. Random: MIL-STD-810 0.2 G2/Hz
Shock, 0.5 MS, 1/2 Sine, 3 Axis 1,100 G
Acceleration, in any Axis 100 G
Life at Rated Resistive Load; Minimum 1,000,000 operations
NUMBERING SYSTEM
TDH-1610 - 1001 W M83726/24 - 1001 W
| | | | | | |
1 3 4 1 2 3 4
1. Model Number or Basic "MIL-PRF" Series number.
2. Military "Slash" number.
3. Timing Range, Fixed: 100 milliseconds to 500 seconds. (See Note 6).
4. Quality level (See Note 7).
Date of issue: 3/06 - 74 - Page 2 of 3
MECHANICAL SPECIFICATIONS TDH-1610
NOTES
[1] The accuracy specification applies for any combination of operating temperature and voltage.
[2] The accuracy will not be affected by power interruptions up to 1 millisecond, spaced at least 10 milliseconds
apart. Transient and power loss specifications are based on a maximum duty cycle of 1/50.
[3] EMI test limits will not be exceeded during the timing interval or when continuously energized under steady
state conditions, per paragraph 3.23, MIL-PRF-83726C.
[4] Terminals X1, X2, A1, B1 and A3 must be connected together during the test. Dielectric withstanding voltage
and insulation resistance are measured at sea level between all mutually insulated terminals and between all
terminals and case.
[5] Recycle time is defined as the minimum time control power must be removed from terminal B1 to assure that
a new cycle can be completed within the specified timing tolerance.
[6] A four digit number defines the time delay in seconds (or milliseconds). The first three digits are significant
figures, used to define the specific time delay. The fourth digit represents the number of zeros to follow the first
three digits.
Examples:
- 1001 = 1 second (1,000 milliseconds)
- 2502 = 25 seconds (25,000 milliseconds)
- 5000 = 0.5 seconds (500 milliseconds)
[7] Quality level as specified in MIL-R-83726, paragraph 3.1.1, 3.1.2 and 3.1.3.
Date of issue: 3/06 - 75 - Page 3 of 3
C
L
MILITARY PART NUMBER & DATA
SERIAL NUMBER
.640
.170 .200
MAX
8 PLACES
.050 ±.001 DIA POLARIZING PIN
.810 MAX
.080 ±.005
2 PLACES
.158 ±.003
FROM FACE
OF HEADER
2 PLACES
NAMEPLATE (FAR SIDE)
CIRCUIT DIAGRAM (NEAR SIDE)
.040 ±.001 DIA, 8 PINS
DATE CODE (NEAR SIDE)
FINISH: PARA 3.4.2.
.055 ±.005
.450
.300
.150 2 PLACES
.18
.07
.15
.13
CONTRASTING BEAD
.110 ±.005
2 PLACES
.010-.015R
4 PLACES
DIMENSIONS ARE SHOWN IN INCHES.
.410 MAX
TD
FIXED TIME DELAY
LOAD
COMMON(-)
20-32 VDC(+)
B1
X2
A1
X1
A3
CONTROL 20-32 VDC(+)
CONTRASTING BEAD
L
20-32 VDC
20-32 VDC
0 VDC
0 VDC
X1-X2
(B1-X2)
INPUT
VOLTAGE
CONTROL
DE-ENERGIZED
TIME DELAY
TIME DELAY ON RELEASE
ENERGIZED
NOTE 6
Application notes N°101
DERATING OF CONTACTS FOR DC VOLTAGES
ABOVE NOMINAL RATING
To establish a standard for the derating of relay contacts is, at best, a subjective practice. Limitations are governed by the type
of relay, contact gap, maximum voltage capabilities of the relay contact system, and the contact material.
The most common method is to derate the contacts by use of the Power Formula, using the known current and voltage.
This method is valid only for Resistive Loads, and is an approximation only; keeping in mind the limitations mentioned above.
Power = IE (Current x Voltage)
I2 E2 = 2/3 I1E1
Example:
A designer is working with a 55 volt DC system and has a relay rated at 10 amps resistive at 28 volts DC.
What is the maximum current that can be switched at 55 Vdc.
I1 = 10 Amperes
E1 = 28 VDC
E2 = 55 VDC
I2 = ? (Current ratings at 55 VDC Resistive)
I2 E2 = 2 I1 E1/3
I2 = 2 I1 E1/E23
= 2 (10 x 28)/55 x 3
= 560/165
I2 = 3.4 Amperes at 55VDC
In addition, the user should always be concerned about the following:
1. Derating contacts that are rated for less than 10 Amperes at nominal voltage.
2. Derating contacts for use in system voltages above 130 Volts DC
Date of issue: 6/00 - 14 - Page 1 of 1
ENGINEERING DATA SHEET SM-1000-003
TRACK MOUNT RELAY SOCKET
5 AMP
APPLICABLE TRACK:
MT-3000-03
BASIC SOCKET SERIES DESIGNATION FOR:
Series X (Track Mount)
Series TD-1609, TD-1610 (Track Mount)
DESIGNED TO THE STANDARDS AND REQUIREMENTS OF:
MIL-S-12883/52
GENERAL CHARACTERISTICS
1. Supplied with No. 20 contacts and No. 20 crimp.
2. Standard tolerances .xx ±.01; xxx ±.005.
3. Weight .016 lb. max.
4. Used in conjunction with MT-3000-003
www.leachintl.com
North America
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622 USA
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
Europe, SA
2 Rue Goethe
57430 Sarralbe
France
Tel: (33) 3 87 97 98 97
Fax: (33) 3 87 97 84 04
Asia-Pacific Ltd.
20/F Shing Hing Commercial Bldg.
21-27 Wing Kut Street
Central, Hong Kong
Tel: (852) 2 191 2886
Fax: (852) 2 389 5803
Date of issue: 6/02 - 5 - Page 1 of 1
ENGINEERING DATA SHEET MT-3000-003
RELAY SOCKET TRACK
BASIC SOCKET SERIES DESIGNATION FOR:
Series SM Sockets (Track Mount)
DESIGNED TO THE STANDARDS AND REQUIREMENTS OF:
MIL-S-12883/53
GENERAL CHARACTERISTICS
Used in conjunction with SM-1000-003, SM-1001-003 and SM-1002-003 track mount relay sockets.
Standard tolerances .xx ±.01; xxx ±.005.
Weight .056 lb. max.
M12883/53-001.....[MT-3000-003]
www.leachintl.com
North America
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622 USA
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
Europe, SA
2 Rue Goethe
57430 Sarralbe
France
Tel: (33) 3 87 97 98 97
Fax: (33) 3 87 97 84 04
Asia-Pacific Ltd.
20/F Shing Hing Commercial Bldg.
21-27 Wing Kut Street
Central, Hong Kong
Tel: (852) 2 191 2886
Fax: (852) 2 389 5803
Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component.
Date of issue: 3/06 - 39 - Page 1 of 1
SOCKET TRACK DRAWING
1.220 1.850
1.060 MAX1.625 MAX
.166 DIA HOLE
.100 X .302 DIA
C'SINK (2 PLACES)
