©2003 TELEDYNE RELAYS

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE

432 Page 1

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432/1203/Q1

SERIES

432

ESTABLISHED RELIABILITY

TO-5 RELAYS

SENSITIVE DPDT

DESCRIPTION

The TO-5 relay, originally conceived and developed by Teledyne, has become

one of the industry standards for low-level switching from dry circuit to 1

ampere. Designed for high-density PC board mounting, its small size and low

coil power dissipation make the 432 relay one of the most versatile

ultraminiature relays available.

The following unique construction features and manufacturing techniques

provide excellent resistance to environmental extremes and overall high

reliability.

• All welded construction.

• Unique uni-frame design, providing high magnetic efficiency and

mechanical rigidity.

• High force/mass ratios for resistance to shock and vibration.

• Advanced cleaning techniques provide maximum assurance of internal

cleanliness.

• Precious metal alloy contact material with gold plating assures excellent

high current and dry circuit switching capabilities.

The Series 432D and 432DD relays have internal discrete silicon diodes for

coil suppression and polarity reversal protection. The hybrid 432T relay has an

internal silicon suppression diode and a transistor driver. This hybrid package

reduces required PC board floor space by reducing the number of external

components needed to drive the relay.

By virtue of its inherently low intercontact capacitance and contact circuit

losses, the 432 relay has shown its worth as an RF switch for frequency

ranges well into the UHF spectrum (see Figure 1). In addition, the sensitive

Series 432 relay has a high resistance coil, thus requiring extremely low

operating power (200 milliwatts, typical at room temperature). The advantages

of reduced heat dissipation and power supply demands are a plus.

INTERNAL CONSTRUCTION

SERIES

DESIGNATION

RELAY TYPE

432

DPDT basic relay

432D

DPDT relay with internal diode for coil transient suppression

432DD

DPDT relay with internal diodes for coil transient suppression and polarity

reversal protection

432T

DPDT relay with internal transistor driver and coil transient suppression

diode

UPPER

STATIONARY

CONTACT

LOWER

STATIONARY

CONTACT

MOVING

CONTACT

UNI-FRAME

ARMATURE

ENVIRONMENTAL AND

PHYSICAL SPECIFICATIONS

Temperature

(Ambient)

–65°C to +125°C

Vibration

(General Note 1)

30 g’s to 3000 Hz

Shock

(General Note 1)

75 g’s,

6 msec, half-sine

Acceleration

50 g’s

Enclosure

Hermetically sealed

Weight

0.159 oz. (4.5g) max.