Vishay Semiconductor Opto Division VOR1142B6

Overview

VOR1142B6 from Vishay Semiconductors is a solid-state relay (SSR) with SPST normally open (Form A) configuration, GaAlAs IRED input and MOSFET output stage, 5300 VRMS isolation, 400 V load voltage rating, and 140 mA AC/DC continuous load current. It replaces electromechanical relays in telecom switching, metering, and industrial control systems where bounce-free, low-power switching is required.

For engineers reviewing the VOR1142B6 datasheet, VOR1142B6 pinout, VOR1142B6 application, or VOR1142B6 equivalent, this page delivers verified specifications including on-resistance (22 Ω typ.), turn-on/off timing (0.13 ms / 0.05 ms typ.), safety certifications (UL 1577, VDE 0884-5), and SMD-6 package details - all confirmed for VOR1142B6 specifically.

Technical Context

The VOR1142B6 integrates an infrared LED input stage optically coupled to a high-voltage MOSFET output switch, enabling galvanic isolation between control and load circuits. Its architecture supports both AC and DC load configurations with distinct current ratings (140 mA AC/DC vs. 270 mA DC-only).

It complies with DIN EN 60747-5-5 (VDE 0884-5) for reinforced insulation, features 0.4 pF input-to-output capacitance, and maintains safe operation across -40 °C to +100 °C ambient temperature with 125 °C junction limit. The device uses method B production testing at 1669 Vpeak per VIORM × 1.875.

Key Specifications

Pinout & Package

SMD-6 package with gull-wing leads, 2.54 mm pitch, 7.25 mm × 6.65 mm body, and 0.79 mm typical height. Pin 1 marked by notch or bevel; lead coplanarity ≤ 0.1 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VOR1142A6 and VO1263AD, the VOR1142B6 uniquely balances 400 V load capability, SMD-6 manufacturability, and 5300 VRMS isolation-making it optimal for space-constrained, high-voltage industrial and metering applications where DIP-6 is impractical and low-RON is secondary to voltage headroom.

Availability

VOR1142B6 is available at Aetrix Electronics and suitable for telecom switching, smart metering, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and certified safety isolation.

Supply support for VOR1142B6 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, sensors, and optoelectronics with emphasis on reliability, precision, and safety-certified solutions.

The VOR1142 series is part of Vishay's optocoupler-based solid-state relay product line, designed specifically to replace electromechanical relays in high-reliability industrial, metering, and telecom infrastructure where long life, zero contact bounce, and regulatory compliance are mandatory.

FAQ

What is the maximum continuous load current rating for VOR1142B6 in AC/DC configuration?

The VOR1142B6 supports 140 mA continuous load current in AC/DC configuration, as specified in the Absolute Maximum Ratings table (Document 84300, p.2). This value applies under Tamb = 25 °C and must be derated linearly above 25 °C per Fig.5 - at 100 °C ambient, max current drops to ~90 mA. Exceeding this rating risks thermal runaway and permanent failure of the MOSFET output stage in the VOR1142B6.

Does VOR1142B6 support both AC and DC loads, and how does pin configuration differ?

Yes, VOR1142B6 supports both AC and DC loads using different pin assignments. In AC/DC mode, pins 5 and 3 form the load path (drain–source); pin 4 is NC. In DC-only mode, pins 5 and 6 serve as drain and source respectively, enabling lower RON (5.2 Ω typ.) and higher current (270 mA). The configuration is fixed per device variant - VOR1142B6 is factory-set for AC/DC use unless otherwise ordered, and pin wiring must match the intended load type to avoid malfunction.

What safety certifications apply to VOR1142B6, and what do they cover?

VOR1142B6 is certified to UL 1577 (5300 VRMS isolation), cUL, and DIN EN 60747-5-5 (VDE 0884-5) for reinforced insulation. These cover dielectric strength, partial discharge limits (<5 pC), creepage (≥8 mm) and clearance (≥8 mm) for SMD-6, and production-level 1669 Vpeak hipot testing. Certification confirms suitability for "safe electrical insulation" in end equipment meeting IEC 61000-4-x immunity and IEC 62368-1 safety standards - but protective circuits must be implemented per §7.4.3.8.2 of the VDE standard for full compliance.

Can VOR1142B6 be driven directly from a 3.3 V microcontroller GPIO without external buffering?

Yes, VOR1142B6 can be driven directly from a 3.3 V GPIO: its typical IRED turn-on current is 0.27 mA (max 2 mA), and forward voltage is 1.4–1.6 V at 10 mA. A 1 kΩ series resistor yields ~1.7–1.9 mA at 3.3 V - well within the 0.27–2 mA IFon range and below the 50 mA absolute max. However, ensure GPIO sink capability ≥ 2 mA and verify timing margins: turn-on delay remains < 0.5 ms even at 0.15 mA, so no additional timing penalty occurs in the VOR1142B6.

How does the on-resistance of VOR1142B6 affect power dissipation and thermal design?

VOR1142B6 exhibits 22 Ω typical on-resistance in AC/DC mode, resulting in I²R conduction loss - e.g., 0.43 W at 140 mA. This power must be dissipated within the 550 mW SSR output power limit and ambient temperature constraints. At 100 °C ambient, Fig.3 shows PSO drops to ~350 mW, meaning max sustainable current falls to ~125 mA. PCB copper area, thermal vias, and airflow must be designed to maintain Tj ≤ 125 °C; exceeding this causes accelerated parameter drift and eventual failure of the VOR1142B6.