Series 412 DPDT Non-Latching Established Reliability Military Relay Datasheet

Category: Electronics, Relays, Teledyne Technologies Incorporated

Overview of Series 412 DPDT Military Relay

Teledyne Relays introduces the Series 412 DPDT Non-Latching Established Reliability Military Relay, an industry-standard electromechanical relay designed for high-density printed circuit board (PCB) mounting. Its compact form factor and efficient power usage make it suitable for a variety of applications, including high-current and dry circuit switching.

Variants

The Series 412 offers different models for specific needs:

412: Basic relay

412D: Relay with internal diode for coil transient suppression

412DD: Relay with added polarity reversal protection

412TN: Relay with internal transistor driver and suppression diode

Features and Benefits

The relay possesses a set of distinctive features:

• All welded construction for durability

• High magnetic efficiency and mechanical rigidity due to its unique uni-frame design

• Excellent resistance to shock and vibration

• Suitable for UHF spectrum RF switching in devices like handheld radio transceivers

Environmental and Physical Specifications

These relays are robust and capable of withstanding harsh conditions:

• Temperature operation from -65°C to +125°C

• Can endure vibrations from 30 g’s to 3000 Hz

• Shock resistant up to 75 g’s for 6ms half sine

• Acceleration up to 50 g’s with a weight of 0.09 oz. maximum

Electrical Specifications

The Series 412 relay provides reliable electrical characteristics:

• Contact Arrangement: 2 Form C (DPDT)

• Contact Resistance: as low as 0.1 ohm before life (1A/28Vdc load)

• Contact Load Rating: Up to 1A at 28Vdc and 250 mA at 115Vac

• Contact Life Ratings: Up to 10 million cycles at low levels and 1 million cycles at 0.5 A / 28 Vdc

• Contact Overload Rating: 2 A at 28 Vdc (minimum 100 cycles)

• Coil Operating Power: 450 mW typical

• Operate and Release Time: As fast as 2.0 ms, depending on the model

• Dielectric Strength: 500 Vrms at 60 Hz

Internal Construction

The relay is comprised of stationary and moving contacts within a hermetically sealed enclosure, ensuring its ability to perform in challenging environments.

This relay serves critical roles in fields requiring high reliability and long service life under strenuous conditions, reinforcing Teledyne’s commitment to providing advanced solutions in relay technology. The datasheet specifies the characteristics, ratings, and ordering information for the Series 412 relays.