Vishay Semiconductor Opto Division VOR2142A8

Overview

VOR2142A8 from Vishay Semiconductors is a dual-channel, normally open, optically isolated solid-state relay (SPST, 1 Form A) in DIP-8 package, featuring 400 V load voltage rating, 140 mA single-channel DC load current, and 5300 VRMS isolation test voltage - used for telecom switching, industrial controls, and battery management systems where bounce-free AC/DC switching and high ambient temperature operation are required.

For engineers reviewing the VOR2142A8 datasheet, VOR2142A8 pinout, VOR2142A8 application, or VOR2142A8 equivalent, this device delivers verified low RON (22 Ω typ.), fast switching (ton = 0.13 ms typ.), and safety-certified insulation (UL 1577, VDE 0884-5) suitable for space-constrained, high-reliability control interfaces requiring galvanic isolation.

Technical Context

The VOR2142A8 integrates two independent GaAlAs IRED input stages coupled to high-performance MOSFET output switches in a hybrid optocoupler architecture. Each channel operates with separate input and output terminals, enabling true dual SPST functionality without internal cross-coupling.

It supports both DC and AC load switching up to 400 V, with guaranteed off-state leakage <1 nA at ±100 V and <6 nA at ±400 V, and maintains stable on-resistance across −40 °C to +100 °C ambient range - validated by normalized RON curves and thermal derating data in the datasheet.

Key Specifications

Pinout & Package

DIP-8 through-hole package with 2.54 mm lead pitch, 7 mm minimum creepage and clearance, and 0.4 mm minimum insulation thickness - compliant with pollution degree 2 and IEC 60747-5-5 safety standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VOR2142B8, the VOR2142A8 offers identical performance but in tube packaging for manual assembly; versus CPC1976Y, it provides dual-channel capability, higher isolation, and through-hole mounting - making it preferable for industrial control and metering where reliability and layout flexibility are prioritized.

Availability

VOR2142A8 is available at Aetrix Electronics and suitable for telecom switching, industrial controls, and battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for VOR2142A8 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 VOR2142 series belongs to Vishay's optically isolated solid-state relay product line, designed specifically for replacing electromechanical relays in high-cycle, high-reliability industrial, metering, and telecom applications where bounce-free switching and reinforced insulation are mandatory.

FAQ

What is the maximum load voltage supported by the VOR2142A8?

The VOR2142A8 supports a maximum DC or peak AC load voltage of 400 V, as specified in the Absolute Maximum Ratings table. This rating applies to both channels independently and is validated under standard test conditions per IEC 60747-5-5. The device maintains safe operation up to this voltage with ≤6 nA off-state leakage at ±400 V, making it suitable for mains-connected metering and industrial control applications. Always observe derating curves for elevated ambient temperatures.

Can the VOR2142A8 switch AC loads?

Yes, the VOR2142A8 can switch both AC and DC loads due to its bidirectional MOSFET output stage. Its 400 V peak AC rating and clean bounce-free operation make it appropriate for AC line sensing, lamp dimming control, and telecom ring detection circuits. The device exhibits symmetrical on-resistance and off-leakage behavior across polarity reversals, confirmed by test data at ±100 V and ±400 V in the Electrical Characteristics table.

What is the minimum input current required to turn on the VOR2142A8?

The VOR2142A8 requires a typical forward current of 0.25 mA (with max 2 mA) to achieve reliable turn-on within 10 ms, per the Electrical Characteristics table. This low drive requirement allows direct interfacing with low-power microcontrollers and logic gates without external amplification. Input sensitivity remains stable across −40 °C to +100 °C, as shown in Fig. 7 (Normalized Forward Current for Switch Turn-On vs. Temperature).

Does the VOR2142A8 have safety certifications?

Yes, the VOR2142A8 carries UL 1577 recognition (5300 VRMS, 1 min), cUL listing, and DIN EN 60747-5-5 (VDE 0884-5) certification. These approvals cover reinforced insulation with 8000 Vpeak transient voltage rating and 890 Vpeak repetitive peak isolation voltage. Certification documentation and test reports are available via Vishay's official product page and safety compliance portal.

How does the VOR2142A8 compare to mechanical relays in terms of lifetime?

The VOR2142A8 offers unlimited mechanical switching cycles - unlike electromechanical relays limited to 10⁵–10⁷ operations - because it uses solid-state MOSFETs with no moving parts or contact erosion. Its lifetime is governed by thermal stress and junction temperature limits (125 °C max), not cycle count. In practice, VOR2142A8 achieves >10¹⁰ switching operations under rated conditions, making it ideal for high-frequency automation and test equipment where relay wear is a failure mode.