M83726/31-1002P - Esterline Power Systems / Leach International

ENGINEERING DATA SHEET TDH-8080/8081

ON RELEASE-ADJUSTABLE PERIOD

2 PDT, 10 AMP

APPLICATION NOTE:

101

APPLICABLE SOCKET:

SO-1048-8308

FEATURES

● 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 1x10-8 atm, cm3/s max

leakage

Finish: per MIL-T-10727 Tin Plate

Terminals:

TDH 8081 (Tin Plate)

TDH 8080 (Gold Plate) Solder-lug

Plug-In

Weight 2.5 Ounce max.

DESCRIPTION

The TDH-8080/81 Time Delay Relays have been designed with thick film hybrid microelectronics timing circuits

and MIL-R-6106 relays, packaged in a hermetically sealed military style enclosure. The TDH-8080/81 series are

qualified to MIL-PRF-83726/31 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: 3/06 - 70 - Page 1 of 3

ELECTRICAL SPECIFICATION TDH-8080/8081

Input (Control) Parameters

Timing:

a. Operation, Time Delay on

b. Method

c. Range

d. Accuracy

Release

Adjustable Period

0.1 to 600 Seconds [6]

±10% [1]

Recycle Time 50 ms, Max [5]

Operations: (X1-X2)

a. Input & Control Voltage

b. Operating Current

c. Control Current

20-30 Vdc

150 mA, Max @ 25° C

15 mA, Max @ 25° C

Transients:

a. Positive, MIL-STD-704A, Figure9, Limit 1

b. Spike, MIL-STD-704A, 0-10 µs

c. Self-Generated

d. Susceptibility

+80 Volts Max

±600 Volts Max

±50 Volts Max

+80; -600 Volts Max

Electromagnetic Interference Per MIL-STD-461A Class 1D [3]

Power Loss 500 Microseconds [2]

Output (Load) Parameters

Contact Form

Contact Rating:

a. Resistive

b. Inductive

c. Motor

d. Lamp

2 PDT

10 Amperes

8 Amperes

4 Amperes

2 Amperes

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

-65 to +125° C

Vibration:

a. Sinusoidal, 10-3000 Hz 30 G

b. Random: 50-2000 Hz, MIL-STD-810 0.4 G2/Hz

Shock @ 6 ± 1 MS, 1/2 Sine, 3 Axis 100 G

Acceleration, in any Axis 15 G

Life at Rated Resistive Load; Minimum 100,000 operations

NUMBERING SYSTEM

Plug-in Terminal Solder Hook Terminal

TDH-8080 - 1001 P TDH-8081 - 1001 S

| | | | | |

1 3 4 1 3 4

M83726/31 - 1001 P M83726/31 - 1001 S

| | | | | | | |

1 2 3 4 1 2 3 4

P = Plug-in terminal.

S = Solder hook terminal.

1. Model Number or Basic "MIL-PRF" Series

number.

2. Pin Style or Military "Slash" number.

3. Timing Range, Fixed: 100 milliseconds to 600

seconds. (See Note 6).

4. Mounting style and quality level (See Note 7).

Date of issue: 3/06 - 71 - Page 2 of 3

MECHANICAL SPECIFICATIONS TDH-8080/8081

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-R-83726B.

[4] Terminals X1, X2, C1, D1 and D3 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 power must be applied to the control terminal to

assure that the next timing cycle will be completed within the specified timing tolerance.

(Units can be recycled during timing or after time-out.)

[6] Time delays greater than 500 seconds are not MIL qualified.

A four digit number defines the adjustable time delay range in seconds (or milliseconds).

The first three digits are significant figures, used to define the upper limit of a DECADE RANGE.

The fourth digit represents the number of zeros to follow the first three digits.

SPECIFY STANDARD DECADE RANGE

- 1001 = 0.1 to 1 second (100 to 1,000 milliseconds)

- 1002 = 1.0 to 10 seconds

- 5002 = 5 to 50 seconds

- 5003 = 50 to 500 seconds

An external resistor is used to obtain a specific time delay within the specified decade range.

The formula below provides the proper resistance value to achieve the desired time delay:

Rext = (_____ - 1) 100,000 Ohms Where:Rext = External resistance value (Ohms)

T0 T1 = Desired time in seconds

T0 = Minimum time (low end of the decade range) in seconds.

As an example, if using a 5 to 50 second adjustable timer and a 30 second delay is desired, the

calculation is:

Rext = (_____ - 1) 100,000 Ohms or Rext = 500 K Ohms

Recommended resistors IAW MIL-R-55182 1/8 Watt, 1% (RNC60HXXXXFS). External resistor not supplied.

[7] Quality level as specified in MIL-R-83726B, paragraph 3.1.1, 3.1.2 and 3.1.3.

Date of issue: 3/06 - 72 - Page 3 of 3

.21

.200 TYPICAL

.21

.200 TYPICAL

CONTRASTING

BEAD

1.010

MAX

.062 ± .001 PINS .080 ID

.30

HOOK PIN

SEE DETAIL

VIEW A AND B

CAGE NO. AND

DATA CODE

(FAR SIDE)

NAMEPLATE

(NEAR SIDE)

.04

.156±.005

CONTRASTING

BEAD

.200 TYPICAL

.21

SILICON RUBBER

GASKET

.062 ± .001 PINS

.05

.27

PLUG-IN

.62

.20

.15

.51

.93

1.025

MAX

1.025 MAX

1.396

1.446

1.718 MAX

EVACUATION HOLE FULL

RADIUS

ALL DIMENSIONS SHOWN ARE IN INCHES.

DETAIL VIEW B

DETAIL VIEW A

+X1

2 3

-X2

CONTRASTING BEAD

ADJUSTABLE TIME DELAY

EXTERNAL

RESISTOR

CONTROL

20-30 VDC

0 VDC

X1-X2

(C1-X2)

INPUT

VOLTAGE

CONTROL

DE-ENERGIZED

TIME DELAY

TIME DELAY ON RELEASE

ENERGIZED

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 SO-1048-8308/8518

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 .xx ±.01; xxx ±.005

3. Weight .115 lb. max

4. Temperature range -70° C to +125° C

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