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Home > Products > Relays > Solid State Relays (SSR)

Vishay Semiconductor Opto Division VOR1142M4T

Name: VOR1142M4T
Brand: Vishay Semiconductor Opto Division
SKU: VOR1142M4T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VOR1142M4T

Manufacturer:: Vishay Semiconductor Opto Division

Category:: Solid State Relays (SSR)

Package:: 4-SOP (0.180", 4.57mm)

Datasheet:: VOR1142M4T.pdf

Description:: SSR RELAY SPST-NO 140MA 0-400V

Quantity:: RFQ Add To RFQ list

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Inventory:3,575

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Product details

Overview

VOR1142M4T from Vishay Semiconductors is a solid-state relay (SSR) with SPST normally open configuration, GaAlAs IRED input and MOSFET output stage, 3750 VRMS isolation, 400 V load voltage rating, and 140 mA continuous load current - used in telecom switching, metering, and industrial control systems.

For engineers reviewing the VOR1142M4T datasheet, VOR1142M4T pinout, VOR1142M4T application, or VOR1142M4T equivalent, this page delivers verified electrical specs, SOP-4 package layout, safety-rated insulation data, timing characteristics, and real-world design context for relay replacement and high-reliability isolation applications.

Technical Context

The VOR1142M4T integrates an infrared LED driver stage coupled optically to a high-voltage MOSFET output switch, enabling galvanic isolation between control and load circuits. Its architecture supports clean bounce-free switching with sub-500 μs turn-on and sub-200 μs turn-off times at 5 mA input drive.

It complies with UL, cUL, and DIN EN 60747-5-5 (VDE 0884-5) safety standards, featuring ≥5 mm creepage/clearance, 0.3 mm minimum insulation thickness, and 6000 V_PEAK transient isolation voltage - designed for use in safety-critical AC/DC load switching where electromechanical relay wear-out must be eliminated.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Voltage	3750 VRMS (1 min test per UL1577; enables safe separation of microcontroller logic from 400 V AC/DC loads)
Load Voltage Rating	400 V (supports direct switching of 230 VAC mains and 380 VDC industrial bus lines)
Continuous Load Current	140 mA (sufficient for driving solenoids, small relays, indicator lamps, and sensor power rails)
On-Resistance	19 Ω typical (limits conduction loss to <1.5 mW at 10 mA load; ensures low self-heating in sealed enclosures)
Turn-On/Off Time	0.1 ms / 0.05 ms typical (enables precise timing control in automated test equipment and pulse-width modulated loads)
Ambient Temp Range	–40 °C to +100 °C (operates reliably in uncooled industrial cabinets and outdoor metering housings)
Input Forward Current	0.25 mA typical for turn-on (compatible with low-power MCU GPIO without external drivers)

Pinout & Package

SOP-4 surface-mount package (7.21 mm × 5.35 mm × 2.12 mm), gull-wing leads, JEDEC MS-012 compliant, moisture sensitivity level 1, lead (Pb)-free reflow compatible.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	IRED Anode	Connects to MCU GPIO or driver IC output; requires current-limiting resistor for 5–50 mA forward bias
2 (Cathode)	IRED Cathode	Ground reference for input side; defines common return path for optical trigger circuit
3 (Source)	MOSFET Source	Low-side switch terminal; ties to load ground or negative rail in high-side configurations with external bias
4 (Drain)	MOSFET Drain	High-voltage load connection point; rated for 400 V bidirectional blocking and 140 mA DC conduction

Key Features

Feature	Design Value
Bounce-free switching	Zero mechanical contact arcing or chatter - eliminates EMI spikes and contact welding in cyclic control loops
High surge capability	Withstands repetitive 400 V transients without degradation; suitable for inductive load switching with minimal snubbing
Low input power consumption	0.25 mA typical turn-on current reduces MCU I/O loading and extends battery life in portable instrumentation
Clean off-state isolation	<0.25 nA leakage at ±100 V ensures signal integrity in high-impedance analog monitoring paths
Extended temperature operation	Full 140 mA load current supported up to +100 °C ambient - no derating required in fanless enclosures

Applications

Telecom Line Switching	Metering Interface Control
Use Scenario: Isolating microcontroller GPIO from POTS line voltage detection and ring-trip signaling circuits in VoIP gateways. IC Role / Device Role / Timing Role: Solid-state relay providing galvanic isolation and fast, repeatable make/break control of analog telephone line segments. Use Value: Eliminates coil wear and contact oxidation seen in EM relays, ensuring >10⁷ cycles in field-deployed telecom hardware.	Use Scenario: Controlling auxiliary power domains and sensor excitation in smart electricity meters with dual AC/DC supply inputs. IC Role / Device Role / Timing Role: Load switch isolating metering SoC from 230 VAC mains during firmware updates or calibration sequences. Use Value: Maintains functional safety compliance (IEC 62052-11) via certified 3750 VRMS isolation while enabling zero-crossing synchronized switching.
Industrial PLC I/O Module	Battery Management System
Use Scenario: Driving status LEDs, pilot lights, and small solenoid valves in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Output-stage SSR replacing EM relays in 24 VDC digital output modules with shared common return. Use Value: Enables 10 kHz PWM-compatible switching for dimming indicators and proportional valve control without contact fatigue.	Use Scenario: Isolating BMS microcontroller from high-side charge/discharge FET gate drivers in 48 V Li-ion rack systems. IC Role / Device Role / Timing Role: Safety-isolated enable switch controlling gate drive power to primary MOSFETs during fault conditions. Use Value: Provides certified insulation barrier between SELV control domain and hazardous 400 V battery stack, meeting UL 62368-1 creepage requirements.

Telecom Line Switching

Metering Interface Control

Use Scenario: Isolating microcontroller GPIO from POTS line voltage detection and ring-trip signaling circuits in VoIP gateways.

IC Role / Device Role / Timing Role: Solid-state relay providing galvanic isolation and fast, repeatable make/break control of analog telephone line segments.

Use Value: Eliminates coil wear and contact oxidation seen in EM relays, ensuring >10⁷ cycles in field-deployed telecom hardware.

Use Scenario: Controlling auxiliary power domains and sensor excitation in smart electricity meters with dual AC/DC supply inputs.

IC Role / Device Role / Timing Role: Load switch isolating metering SoC from 230 VAC mains during firmware updates or calibration sequences.

Use Value: Maintains functional safety compliance (IEC 62052-11) via certified 3750 VRMS isolation while enabling zero-crossing synchronized switching.

Industrial PLC I/O Module

Battery Management System

Use Scenario: Driving status LEDs, pilot lights, and small solenoid valves in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Output-stage SSR replacing EM relays in 24 VDC digital output modules with shared common return.

Use Value: Enables 10 kHz PWM-compatible switching for dimming indicators and proportional valve control without contact fatigue.

Use Scenario: Isolating BMS microcontroller from high-side charge/discharge FET gate drivers in 48 V Li-ion rack systems.

IC Role / Device Role / Timing Role: Safety-isolated enable switch controlling gate drive power to primary MOSFETs during fault conditions.

Use Value: Provides certified insulation barrier between SELV control domain and hazardous 400 V battery stack, meeting UL 62368-1 creepage requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar solid-state relay applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLP3554(TP,E)	Higher 600 V load rating but lower 100 mA current capacity; 25 Ω R_ON; same SOP-4 footprint	Better suited for 400 VAC motor control; less optimal for high-current DC loads like solenoids	Select when higher voltage margin is critical and load current stays below 100 mA
PS8501-AX	1500 VRMS isolation only; 350 V load voltage; 120 mA current; integrated Zener clamp on output	Designed for lower-cost industrial sensors; lacks VDE certification and high-temp performance	Choose for cost-sensitive non-safety-critical applications where full 3750 VRMS is not mandated

Compared with TLP3554(TP,E) and PS8501-AX, the VOR1142M4T uniquely balances 3750 VRMS safety certification, 400 V/140 mA load handling, and –40 °C to +100 °C operation - making it the preferred choice for UL-compliant metering and telecom infrastructure where long-term reliability under thermal stress is mandatory.

Availability

VOR1142M4T is available at Aetrix Electronics and suitable for telecom switching, energy metering, and industrial control applications requiring stable component supply, long-lifecycle availability, and certified safety isolation.

Supply support for VOR1142M4T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, optoelectronics, and passive devices with emphasis on reliability, precision, and safety certification.

The VOR1142M4T belongs to Vishay's optocoupler-based solid-state relay product line, engineered specifically for replacing electromechanical relays in safety-critical, high-cycle-count industrial and utility applications.

FAQ

What is the maximum load voltage the VOR1142M4T can safely switch?

The VOR1142M4T is rated for a maximum DC or peak AC load voltage of 400 V. This allows direct switching of 230 VAC mains and 380 VDC industrial bus lines. The device maintains this rating across its full operating temperature range (–40 °C to +100 °C) and meets DIN EN 60747-5-5 for reinforced insulation up to 707 V_PEAK repetitive voltage.

Does the VOR1142M4T require an external current-limiting resistor on the input side?

Yes, the VOR1142M4T requires an external series resistor on the IRED anode (Pin 1) to limit forward current to ≤50 mA. At typical 3.3 V or 5 V MCU GPIO levels, a 220 Ω to 1 kΩ resistor ensures reliable turn-on with 0.25 mA typical threshold while staying within absolute maximum ratings.

Can the VOR1142M4T replace an electromechanical relay in a high-cycle application?

Yes - the VOR1142M4T is explicitly designed as an EM relay replacement, offering bounce-free switching, >10⁷ cycle endurance, and no contact wear. Its MOSFET output eliminates arcing and contact welding, making it ideal for automatic test equipment, security panels, and PLC outputs where cycling exceeds 100 Hz.

What safety certifications does the VOR1142M4T hold?

The VOR1142M4T carries UL and cUL recognition (file E287551) and optional DIN EN 60747-5-5 (VDE 0884-5) certification. It achieves 3750 VRMS isolation (1 min), 6000 V_PEAK transient voltage, and ≥5 mm creepage/clearance - satisfying requirements for basic and reinforced insulation in IEC 61000-4-5 and UL 62368-1 designs.

Is the VOR1142M4T compatible with lead-free reflow soldering processes?

Yes, the VOR1142M4T is qualified for lead-free reflow per J-STD-020, with a peak temperature tolerance of 260 °C for ≤10 seconds. Its SOP-4 package uses matte tin-plated gull-wing leads and meets MSL Level 1 (unlimited floor life at <30 °C / <85 % RH), simplifying high-volume SMT assembly.

VOR1142M4T Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Semiconductor Opto Division

Series:: VOR1142

Packaging:: Tape & Reel (TR)

Product Status:: Active

Mounting Type:: Surface Mount

Circuit:: SPST-NO (1 Form A)

Output Type:: AC, DC

Voltage - Input:: 1.36VDC

Voltage - Load:: 0 V ~ 400 V

Load Current:: 140 mA

On-State Resistance (Max):: 27 Ohms

Termination Style:: Gull Wing

Operating Temperature:: -40°C ~ 100°C

Supplier Device Package:: 4-SOP

Approval Agency:: cUL, DIN, UL

Grade:: -

Qualification:: -

VOR1142M4T FAQ

1.How can I place an order for VOR1142M4T through Aetrix?

Please submit a Request for Quotation (RFQ) for VOR1142M4T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for VOR1142M4T reliable?

The price and inventory of VOR1142M4T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VOR1142M4T is usually 5 days.

3.What payment methods are accepted for VOR1142M4T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VOR1142M4T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VOR1142M4T?

VOR1142M4T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VOR1142M4T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for VOR1142M4T?

For technical support, including VOR1142M4T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VOR1142M4T requirements.

6.How does Aetrix verify that VOR1142M4T is sourced from the original manufacturer or authorized distributors?

All VOR1142M4T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VOR1142M4T meets industry standards.

7.What is the process for return or replacement of VOR1142M4T?

All VOR1142M4T units undergo pre-shipment inspection (PSI). If there is an issue with VOR1142M4T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The VOR1142M4T part is unused and in its original packaging.

Return procedure for VOR1142M4T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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