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Vishay Semiconductor Opto Division VO14642AT
- Part No.:
- VO14642AT
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Solid State Relays (SSR)
- Package:
- 6-DIP (0.300", 7.62mm)
- Datasheet:
-
VO14642AT.pdf
- Description:
- SSR RELAY SPST-NO 1A 0-60V
- Quantity:
- Payment:
- Shipping:
Inventory:2,760
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Product details
Overview
VO14642AT from Vishay Semiconductors is a high-speed, single-channel, normally open solid-state relay (SPST–1 Form A) in a DIP-6 package, integrating an infrared LED input and high-performance MOSFET output stage. It delivers ≤800 μs turn-on/turn-off times, 0.25 Ω max RON (AC/DC), 5300 VRMS isolation, 60 V load voltage, and 2 A DC load current - enabling clean, bounce-free switching in industrial control signal isolation.
For engineers reviewing the VO14642AT datasheet, VO14642AT pinout, VO14642AT application, or VO14642AT equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The VO14642AT uses a multi-chip hybrid construction: an efficient infrared LED drives a high-voltage MOSFET output stage, enabling TTL/CMOS-compatible input logic control of AC/DC or DC-only loads. Its internal architecture supports both configurations via external wiring - no internal switching logic or integrated driver circuitry.
Isolation is achieved through reinforced insulation meeting UL 1577 (5300 VRMS), DIN EN 60747-5-5 (VDE 0884-5), and FIMKO standards, with creepage/clearance ≥7 mm and DTI ≥0.4 mm. Thermal performance is defined by junction-to-board resistances (θEB = 176 °C/W, θDB = 67 °C/W), supporting operation from –55 °C to +85 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | SPST–1 Form A, normally open; supports AC/DC or DC-only load modes via external wiring |
| Max Load Voltage | 60 V - limits maximum RMS or DC voltage applied across output terminals without breakdown |
| Max DC Load Current | 2 A - continuous current-handling capability in DC-only mode at Tamb ≤ 85 °C |
| On-Resistance (RON) | 0.05–0.07 Ω (DC only), 0.18–0.25 Ω (AC/DC) - directly impacts conduction loss and thermal rise under load |
| Switching Speed | ton/toff ≤ 800 μs - enables reliable control of fast-cycling loads like solenoids or test equipment relays |
| Isolation Voltage | 5300 VRMS (1 min) - certifies reinforced insulation for safety-critical barrier applications |
| Input Compatibility | TTL/CMOS logic-level compatible - accepts 0.5–2 mA turn-on current, eliminating need for external current-limiting resistors in many cases |
Pinout & Package
DIP-6 through-hole package with 2.54 mm lead pitch, 7.25 mm body width, and 9.80 mm length; meets JEDEC MS-001 standard footprint requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input; requires series resistor if driven from >1.6 V supply |
| 2 | Cathode | LED cathode input; referenced to system ground for opto-isolated control |
| 3 | NC | No connection - internally unconnected; must remain floating or grounded per layout guidelines |
| 4 | Load | Output terminal 1 - connects to one side of AC/DC load (e.g., relay coil, lamp) |
| 5 | Load | Output terminal 2 - completes load path; polarity-independent for AC/DC mode |
| 6 | DC | DC-mode configuration pin - tied to Pin 4 for DC-only operation; left open for AC/DC mode |
Key Features
| Feature | Design Value |
|---|---|
| Clean bounce-free switching | Eliminates mechanical contact arcing and EMI in precision instrumentation and automated test systems |
| Low RON MOSFET output | Reduces I²R heating at 2 A DC load - enables compact PCB layouts without forced air cooling |
| 5300 VRMS reinforced isolation | Meets safety requirements for Class I equipment in industrial controls and medical auxiliary circuits |
| TTL/CMOS input compatibility | Direct interface with microcontroller GPIOs or logic gates without level-shifting circuitry |
| Multi-mode load support | Single device supports both AC/DC (e.g., 24 VAC PLC outputs) and DC-only (e.g., 12 VDC solenoids) loads |
Applications
| Industrial PLC I/O Modules | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Isolating digital output signals from programmable logic controller backplanes to drive 24 VAC field devices. IC Role / Device Role / Timing Role: Solid-state relay providing galvanic isolation and load switching between controller logic and industrial actuators. Use Value: Enables 800 μs response time for cycle-accurate sequencing of pneumatic valves and motor starters without contact wear. |
Use Scenario: Switching calibration reference loads during automated functional testing of power supplies and sensors. IC Role / Device Role / Timing Role: Precision-controlled load switch ensuring repeatable timing and zero-contact bounce during test cycles. Use Value: Delivers <1 μA off-state leakage and sub-0.1 Ω RON to maintain measurement accuracy across 1000+ test cycles. |
| Security System Control Panels | Benchtop Laboratory Instruments |
Use Scenario: Driving 12 VDC door locks and alarm sirens from low-voltage microcontroller outputs in access control panels. IC Role / Device Role / Timing Role: DC-only configured SSR replacing electromechanical relays for silent, long-life actuation. Use Value: Supports 2 A continuous DC load with 0.05 Ω typical RON, minimizing voltage drop and heat generation in enclosed enclosures. |
Use Scenario: Isolating and switching sensor excitation sources (e.g., 5 V/100 mA bridge drivers) in multichannel data acquisition units. IC Role / Device Role / Timing Role: Input-isolated output switch enabling channel-by-channel enable/disable without crosstalk. Use Value: Provides 5300 VRMS isolation and <800 μs switching to prevent measurement contamination during dynamic range changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solid-state relay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VOL617A | Higher RON (0.35 Ω typ), lower load current (1.2 A), same DIP-6 package and 5300 VRMS isolation | Optimized for lower-power AC/DC loads; not rated for 2 A DC continuous operation | Select when load current ≤1.2 A and cost sensitivity outweighs RON and current headroom needs |
| PS7141-2A | Lower isolation (3750 VRMS), higher ton/toff (1.5 ms), SMD-4 package, 1.5 A max load current | Suitable for non-safety-critical consumer-grade equipment where board space is constrained | Choose only if UL/VDE certification is unnecessary and surface-mount assembly is mandatory |
Compared with VOL617A and PS7141-2A, the VO14642AT uniquely combines 2 A DC load capability, 0.05 Ω RON, and 5300 VRMS isolation in a through-hole DIP-6 format - making it the only option among the three qualified for industrial PLC outputs and safety-rated instrumentation interfaces.
Availability
VO14642AT is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automated test equipment, security system control panels, and benchtop laboratory instruments requiring stable component supply, long-term lifecycle support, and certified safety isolation.
Supply support for VO14642AT 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 elements, with core expertise in reliability-critical power and signal isolation solutions.
The VO14642AT belongs to Vishay's VOxx64x solid-state relay family, engineered specifically for replacing electromechanical relays in industrial control, instrumentation, and security systems where long life, fast switching, and regulatory-compliant isolation are mandatory.
FAQ
What is the maximum continuous DC load current rating for VO14642AT?
The VO14642AT is rated for 2 A continuous DC load current in DC-only configuration (Pin 6 tied to Pin 4), verified at ambient temperatures up to +85 °C. This rating assumes proper PCB copper area for thermal dissipation and is derated per Figure 1 in the official Vishay datasheet Document Number 81646.
Can VO14642AT switch AC loads, and what is its maximum AC voltage rating?
Yes, VO14642AT supports AC/DC loads when Pin 6 is left open. Its maximum load voltage is 60 V RMS or peak - applicable to both AC and DC waveforms. It is not rated for 120 VAC or 240 VAC mains switching; use only within the specified 60 V limit to ensure reliability and safety compliance.
What is the purpose of Pin 3 (NC) on VO14642AT, and how should it be handled in layout?
Pin 3 on VO14642AT is a no-connect terminal - internally unconnected and electrically isolated. Vishay recommends leaving it floating or grounding it in PCB layout to minimize noise coupling; it must never be tied to voltage rails or used as a heatsink pad, as it has no thermal or electrical function.
Does VO14642AT require an external current-limiting resistor on its LED input?
Yes - although VO14642AT accepts TTL/CMOS logic levels, its LED forward voltage is 1.0–1.6 V (typ. 1.4 V at 10 mA). When driven from 3.3 V or 5 V supplies, a series resistor (e.g., 330 Ω for 5 V) is required to limit forward current to ≤50 mA absolute maximum and maintain 0.5–2 mA turn-on threshold per datasheet specifications.
Which safety certifications apply to VO14642AT, and under what conditions are they valid?
VO14642AT is certified to UL 1577 (5300 VRMS), cUL, DIN EN 60747-5-5 (VDE 0884-5), and FIMKO. These approvals are valid only for operation within the ambient temperature range of –40 °C to +85 °C and require adherence to creepage/clearance rules (≥7 mm) and protective circuit implementation per Vishay's safety application notes.
VO14642AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- Through Hole
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.3VDC
- Voltage - Load:
- 0 V ~ 60 V
- Load Current:
- 1 A
- On-State Resistance (Max):
- 250 mOhms
- Termination Style:
- PC Pin
- Operating Temperature:
- -55°C ~ 85°C
- Supplier Device Package:
- 6-DIP
- Approval Agency:
- cUL, DIN, FIMKO, UL
- Grade:
- -
- Qualification:
- -
VO14642AT FAQ
1.How can I place an order for VO14642AT through Aetrix?
Please submit a Request for Quotation (RFQ) for VO14642AT 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 VO14642AT reliable?
The price and inventory of VO14642AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VO14642AT is usually 5 days.
3.What payment methods are accepted for VO14642AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VO14642AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VO14642AT?
VO14642AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VO14642AT 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 VO14642AT?
For technical support, including VO14642AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VO14642AT requirements.
6.How does Aetrix verify that VO14642AT is sourced from the original manufacturer or authorized distributors?
All VO14642AT 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 VO14642AT meets industry standards.
7.What is the process for return or replacement of VO14642AT?
All VO14642AT units undergo pre-shipment inspection (PSI). If there is an issue with VO14642AT, 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 VO14642AT part is unused and in its original packaging.
Return procedure for VO14642AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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