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SMA4120 - Solid State Relay

General Description

The SMA4120 is a single-pole, single-throw, normally open multipurpose solid state relay.

The circuit is composed of an infra-red LED on the input side optically coupled to a Photo Diode Array which drives back-to-back high voltage enhancement type DMOS transistors on the output.

Key Features

  • High Blocking Voltage (600V MIN).
  • High Load Current (0.5A MAX Continuous).
  • Low Input Control Current (3mA TYP).
  • Low On Resistance (4Ω TYP).
  • High Input-to-Output Isolation (4kV).
  • Long Life / High Reliability.
  • RoHS / Pb-Free / REACH Compliant Agency Approvals UL/C-UL: VDE: File # E90096 File # 40035191 (EN 60747-5-2) Absolute Maximum Ratings The values indicated are absolute stress ratings. Functional operation of the device is not implied at these or any co.

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Datasheet Details

Part number SMA4120
Manufacturer Solid State Optronic
File Size 220.01 KB
Description Solid State Relay
Datasheet download datasheet SMA4120 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SMA4120 1 Form A 600V / 6Ω MOSFET Output Solid State Relay Description The SMA4120 is a single-pole, single-throw, normally open multipurpose solid state relay. The circuit is composed of an infra-red LED on the input side optically coupled to a Photo Diode Array which drives back-to-back high voltage enhancement type DMOS transistors on the output. The SMA4120 has a high blocking voltage (600V) and is rated for a continuous load current of 0.5A. The combination of high blocking voltage, high load current, and small form factor make the SMA4120 ideal for electromechanical and reed relay replacement. The SMA4120 comes standard in a 4 pin SIP package.