318 Dimensions are shown for
reference purposes only. Dimensions are in inches over
(millimeters) unless otherwise
specified.
Specifications and availability
subject to change.
P&B
Catalog 1308242
Issued 3-03
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
T81N/T81H series
Ultraminiature, High Density
PC Board Relay
File E29244
File LR48471
Users should thoroughly review the technical data before selecting a product
part number. It is recommended that user also seek out the pertinent
approvals files of the agencies/laboratories and review them to ensure the
product meets the requirements for a given application.
Coil Data @ 20°C
Operate Data @ 20°C
Must Operate Voltage: 70% of nominal voltage or less.
Must Release Voltage: 5% of nominal voltage or more.
Operate Time (Excluding Bounce)†: Standard Coil : 5 ms, approx.
Sensitive Coil : 5 ms, approx.
Release Time (Excluding Bounce)†: All Models: 2 ms, approx.
† At or from Nominal Coil Voltage.
PC Board Layout (Bottom View)
Outline Dimensions
Wiring Diagram (Bottom View)
.429 MAX.
(10.9)
.460
(11.7)
.626 MAX.
(15.9)
.122
(3.10)
1 2
12 1 1 7
.397
(10.1)
.100
(2.54)
.299
(7.6)
0.04 DIA.
(1.01)
Mechanical Data
Termination: Printed circuit terminals on 0.1" (2.54mm) centers.
Enclosure: Sealed PBT plastic case.
Weight: 0.14 oz. (4g) approximately.
Environmental Data
Temperature Range: Standard Coil: -40°C to +55°C.
Sensitive Coil: -40°C to +75°C.
Vibration: 0.059" (1.5mm) max. excursions for 10-40 Hz.
Shock: Standard Coil: 10g for 11 ms.
Sensitive Coil: 6g for 11 ms.
Terminals - #1 & 2
.023 (0.6) X .018 (0.45)
Terminals - #11 & 12
.023 (0.6) X .016 (0.40)
Terminal - #7
.008 (0.20) X .023 (0.6)
Standard Coils Sensitive Coils
Nominal Resistance Nominal Resistance
Voltage ±10% Voltage ±10%
(VDC) (Ohms) (VDC) (Ohms)
320345
5 55 5 125
6 80 6 180
9 180 9 400
12 320 12 700
24 1,280 24 2,800
Features
• Gold clad contacts in a 1 Form C contact arrangement.
• Standard 0.1" x 0.3" grid spacing in a DIP configuration.
• Standard or sensitive DC coils through 24 volts.
• High dielectric strength.
• Well suited for audio communications circuits, logic and process control,
vending machines, thermostats and office automation applications.
• Immersion cleanable, plastic sealed case.
• Quiet operation for security applications.
Initial Dielectric Strength
Between Open Contacts: 500V rms, 50/60 Hz., for 1 minute.
Contact to Coil: 1,000V rms, 50/60 Hz., for 1 minute.
Coil Data @ 20°C
Voltage: 3 through 24VDC.
Nom. Power (Approx.): Std. Coil: 450 mW; Sensitive Coil: 200 mW.
Maximum Power: Std. Coil: 800 mW.;Sensitive Coil: 640 mW.
Temperature Rise: Std. Coil: 105°C per watt, typ.
Sensitive Coil: 125°C per watt, typ.
Maximum Coil Temperature: 105°C.
Duty Cycle: Continuous.
Initial Insulation Resistance
Between Mutually Insulated Conductors:108 ohms @ 500VDC, 20°C
and 65% relative humidity.
T81H5D312-05
T81H5D312-06 T81H5D312-12
T81H5D312-24
Contact Data @ 20°C
Arrangements: 1 Form C (SPDT).
Material: Gold overlay silver-palladium alloy.
Ratings: 1 amp @ 24VDC, resistive; 0.5 amp @ 120VAC, resistive.
Max. Switching Current: 2A
Max. Switching Power: 60VA/24W.
Max. Switching Voltage: 120VAC/60VDC.
Expected Mechanical Life: 10 million operations.
Expected Electrical Life: 150,000 ops. @ 1A, 24VDC, resistive.
100,000 ops. @ 1A, 120VAC, resistive.
Initial Contact Resistance: 50 milliohms, max., @ 100mA, 6VDC.
Surge Voltage:
Between Coil and Contacts (10 x 160µs): 1,500V: (FCC Part 68).
Our authorized distributors are more likely to stock these items.
Ordering Information
Typical Part Number B
T81H5D312-12
1. Basic Series:
T81 = Ultraminiature,
PC board relay.
2. Coil Sensitivity:
N = Standard coil.
H = Sensitive coil.
3. Contact Arrangement:
5 = 1 Form C (SPDT)
4. Coil Input:
D = DC Voltage.
5. Dielectric Strength:
3 = High dielectric strength, UL recognized.
6. Contact Rating:
1 = 1A @ 24VDC; 0.5A @ 120VAC.
7. Contact Material:
2 = Gold overlay silver-palladium alloy.
8. Coil Voltage:
03 = 3VDC 06 = 6VDC 12 = 12VDC
05 = 5VDC 09 = 9VDC 24 = 24VDC
T81N5D312-05
T81N5D312-12 T81N5D312-24