TDH-8050/8051
ENGINEERING DATA SHEET
ON OPERATE-FIXED PERIOD
2 PDT, 10 AMP
FEATURES
q
q
q
q
q
Small size and weight
High-reliability design
Hermetically sealed
High transient immunity
Reverse Polarity Protection
PRINCIPLE TECHNICAL CHARACTERISTICS
Seal:Hermetic Tested per MIL-STD-883,
Method 1014 Condition B, C
Finish: per MIL-T-10727
Terminals:
TDH 8051 (Tin Lead Plate)
TDH 8050 (Gold Plate)
Weight
1x10 atm, cm /s max
leakage
Tin Lead Plate
Solder-lug
Plug-In
2.5 Ounce max.
-8
3
APPLICATION NOTE:
101
APPLICABLE SOCKET:
SO-1048-8308
DESCRIPTION
The TDH-8050/51 Time Delay Relays have been designed with thick film hybrid microelectronics timing circuits
and MIL-PRF-83536 relays, packaged in a hermetically sealed military style enclosure. The TDH-8050/51 series
are qualified to MIL-PRF-83726/28 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.
Featuring
LEACH
©
power and control solutions
www.esterline.com
AMERICAS
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622
.
.
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
EUROPE
2 Rue Goethe
57430 Sarralbe
France
.
.
Tel: (33) 3 87 97 31 01
Fax: (33) 3 87 97 96 86
ASIA
Units 602-603 6/F Lakeside 1
No.8 Science Park West Avenue
Phase Two, Hong Kong Science Park
Pak Shek Kok, Tai Po, N.T.
Hong Kong
Tel: (852) 2 191 3830
Fax: (852) 2 389 5803
Data sheets are for initial product selection and comparison. Contact Esterline Power Systems prior to choosing a component.
Date of issue: 6/10
- 60 -
Page 1 of 3
ELECTRICAL SPECIFICATION
Input (Control) Parameters
Timing:
a. Operation, Time Delay on
b. Method
c. Range
d. Accuracy
Recycle Time
Operations: (X1-X2)
a. Input & Control Voltage
b. Operating Current
Transients:
a. Positive, MIL-STD-704A, Figure9, Limit 1
b. Spike, MIL-STD-704A, 0-10 µs
c. Self-Generated
d. Susceptibility
Electromagnetic Interference Per MIL-STD-461A
Power Loss
Output (Load) Parameters
Contact Form
Contact Rating:
a. Resistive
b. Inductive
c. Motor
d. Lamp
Dielectric Strength:
a. @ Sea Level, 60 Hz
b. @ 80,000 ft., 60 Hz
Insulation Resistance @ 500 Vdc
2 PDT
10 Amperes
8 Amperes
4 Amperes
2 Amperes
1000 Vrms [4]
350 Vrms
1000 M
Ω
[4]
Operate
Fixed Period
0.1 to 600 Seconds [6]
±10% [1]
50 ms, Max [5]
TDH-8050/8051
20-30 Vdc
150 mA, Max @ +25° C
+80 Volts Max
±600 Volts Max
±50 Volts Max
+80; -600 Volts Max
Class 1D [3]
500 Microseconds [2]
GENERAL CHARACTERISTICS
Ambient Temperatures Range:
a. Operating
b. Non-Operating
Vibration:
a. Sinusoidal, 10-3000 Hz
b. Random: 50-2000 Hz, MIL-STD-810
Shock @ 6 ± 1 MS, 1/2 Sine, 3 Axis
Acceleration, in any Axis
Life at Rated Resistive Load; Minimum
30 G
0.4 G
2
/Hz
100 G
15 G
100,000 operations
-55 to +125° C
-65 to +125° C
NUMBERING SYSTEM
Plug-in Terminal
TDH-8050 - 1001
|
|
1
3
M83726/28 - 1001
|
|
|
1
2
3
P
|
4
P
|
4
Solder Hook Terminal
TDH-8051 - 1001 S
|
|
|
1
3
4
M83726/28 - 1001 S
|
|
|
|
1
2
3
4
1.
Model Number or Basic "MIL-PRF" Series
number.
2.
Military "Slash" number.
3.
Timing Range, Fixed: 100 milliseconds to 600
seconds. (See Note 6).
4.
Mounting style and quality level (See Note 7).
P = Plug-in terminal.
S = Solder hook terminal.
Date of issue:
6/10
- 61 -
Page 2 of 3
MECHANICAL SPECIFICATIONS
TDH-8050/8051
1 -X2 2
3
D
C
1.718 MAX
1.446
1.396
1.025 MAX
.15
NAMEPLATE
(NEAR SIDE)
TD
B
+X1
A
.93
1.025
MAX
.51
.62
1.010
MAX
.04
.20
.156±.005
FULL
RADIUS
SEE DETAIL
VIEW A AND B
CAGE NO. AND
DATA CODE
(FAR SIDE)
EVACUATION HOLE
CONTRASTING BEAD
PLUG-IN
.05
.27
.30
HOOK PIN
FIXED TIME DELAY
SILICON RUBBER
GASKET
.062 ± .001 PINS
.062 ± .001 PINS
.080 ID
20-30 VDC
0 VDC
X1-X2
INPUT
VOLTAGE
.200 TYPICAL
.21
30
.21
CONTRASTING
BEAD
.200 TYPICAL
.21
CONTRASTING
BEAD
.21
.200 TYPICAL
.200 TYPICAL
DETAIL VIEW A
DETAIL VIEW B
TIME DELAY
RELAY DE-ENERGIZED
OUTPUT
ENERGIZED
ALL DIMENSIONS SHOWN ARE IN INCHES.
TIME DELAY ON OPERATE
NOTES
[1] The accuracy specification applies for any combination of operating temperature and
voltage.
For units with a timing range less than 1 second, add ±10 milliseconds to the ±10%
tolerance.
[2] Transient and power loss specification 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-83726B.
[4] Terminals X1 and X2 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 maximum time power must be removed from terminal
X1 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-83726B, paragraph 3.1.1, 3.1.2 and 3.1.3.
Date of issue:
6/10
- 62 -
Page 3 of 3
Application notes
DERATING OF CONTACTS FOR DC VOLTAGES
ABOVE NOMINAL RATING
N°101
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)
I
2
E
2
= 2/3 I
1
E
1
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.
I
1
= 10 Amperes
E
1
= 28 VDC
E
2
= 55 VDC
I
2
= ? (Current ratings at 55 VDC Resistive)
I
2
E
2
= 2 I
1
E
1
/3
I
2
= 2 I
1
E
1
/E
2
3
= 2 (10 x 28)/55 x 3
= 560/165
I
2
= 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
SO-1048-8308/8518
ENGINEERING DATA SHEET
RELAY SOCKET
12 AMP
BASIC SOCKET SERIES DESIGNATION FOR:
Series K
Series TDH-8070, TDH-8080
TDH-8050, TDH-8060, VS400
MEETS THE REQUIREMENTS OF:
MIL-DTL-12883
GENERAL CHARACTERISTICS
1. Supplied with mounting hardware and No. 16 contacts, No. 16 crimp (SO-1048-8308); No. 16 contacts, No. 20 crimp (SO-1048-8518).
2. Standard tolerances
3. Weight
4. Temperature range
.xx ±.01; xxx ±.005
.115 lb. max
-70° C to +125° C
Featuring
LEACH
©
power and control solutions
www.esterline.com
AMERICAS
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622
.
.
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
EUROPE
2 Rue Goethe
57430 Sarralbe
France
.
.
Tel: (33) 3 87 97 31 01
Fax: (33) 3 87 97 96 86
ASIA
Units 602-603 6/F Lakeside 1
No.8 Science Park West Avenue
Phase Two, Hong Kong Science Park
Pak Shek Kok, Tai Po, N.T.
Hong Kong
Tel: (852) 2 191 3830
Fax: (852) 2 389 5803
Data sheets are for initial product selection and comparison. Contact Esterline Power Systems prior to choosing a component.
Date of issue: 8/09
-9-
Page 1 of 1
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