© 2013 Solid State Optronics • San José, CA

M231 /TR

Rev 1.99 (11/12/2013)

001733

Page 1 of 7

M231

1 Form A

250V / 10Ω

MOSFET Output Solid State Relay

Description

The M231 is a bi-directional, single-pole, single-throw,

normally open multipurpose solid-state relay in a miniature

4-pin small outline package. With a high blocking voltage

(250V) and low on-resistance, it is ideally suited to high

voltage applications requiring higher load currents. The

relay consists of an integrated circuit that drives two rugged

source-to-source enhancement type DMOS transistors –

optically coupled to a light emitting diode. The output MOS

transistors are protected with free-wheeling diodes that can

handle up to 1.5A of inrush current

The M231 comes standard in a 4 pin SOP package.

Schematic Diagram

Agency Approvals

UL/C-UL:

File # E201932

VDE:

File # 40035191 (EN 60747-5-2)

Applications



Reed Relay Replacement



Security Systems



Meter Reading Equipment



Data Acquisition



Battery Monitoring



Multiplexers

Absolute Maximum Ratings

The values indicated are absolute stress ratings. Functional

operation of the device is not implied at these or any

conditions in excess of those defined in electrical

characteristics section of this document. Exposure to

absolute Maximum Ratings may cause permanent damage

to the device and may adversely affect reliability.

Storage Temperature …………………………..-55 to +125°C

Operating Temperature …………………………-40 to +85°C

Continuous Input Current………………………………..50mA

Transient Input Current ………………….……………..500mA

Reverse Input Control Voltage …………..…………………5V

Input Power Dissipation…………………………………40mW

Total Power Dissipation ……………………………..400mW

Solder Temperature – Wave (10sec)……………….….260°C

Solder Temperature – IR Reflow (10sec)….…………..260°C

Ordering Information

Part Number

Description

M231

4 pin SOP, (100/Tube)

M231-TR

4 pin SOP, Tape and Reel (2000/Reel)

Features



High Input-to-Output Isolation (1500V MIN)



Low Input Control Current (2.5mA TYP)



150mA Maximum Continuous Load Current



Low On Resistance (6

 TYP)



Ultra Miniature 4SOP Package



Long Life / High Reliability



RoHS / Pb-Free / REACH Compliant

NOTE: Suffixes listed above are not included in marking on

device for part number identification