Vishay Semiconductor Opto Division VO2631-X006
- Part No.:
- VO2631-X006
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Logic Output Optoisolators
- Package:
- 8-DIP (0.400", 10.16mm)
- Datasheet:
-
VO2631-X006.pdf
- Description:
- OPTOISO 5.3KV 2CH OPEN DRN 8DIP
- Quantity:
- Payment:

- Shipping:

Inventory:2,000
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Product details
Overview
VO2631-X006 from Vishay Semiconductors is a dual-channel, high-speed optocoupler with 10 MBd data rate, open-drain NMOS outputs per channel, and no enable pin. It isolates digital signals in industrial PLCs, motor drives, and isolated power supply feedback loops using LED-to-photodiode IC coupling.
For engineers reviewing the VO2631-X006 datasheet, VO2631-X006 pinout, VO2631-X006 application, or VO2631-X006 equivalent, key selection criteria include dual-channel isolation without strobe control, 53 ns tpLH/42 ns tpHL propagation delays at 5 V, and compatibility with 350 Ω pull-up and 15 pF load conditions.
Technical Context
The VO2631-X006 implements two independent optically coupled channels: each integrates a GaAs LED input stage and a monolithic photodiode + amplifier + NMOS output IC detector. No enable logic is present-unlike VO2601/VO2611-making it suitable for always-active dual-signal isolation.
Each channel delivers open-drain NMOS output with typical VOL = 1.5 V at IOL = 7.5 mA, driven by an internal current-controlled photodiode amplifier. The PSpice model (in 6N137_VO2630.lib) reflects device characterization at 25 °C with verified timing under VCC = 5 V, RL = 350 Ω, CL = 15 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10 MBd - supports high-speed serial communication up to 10 million bits per second |
| Propagation Delay tpLH | 53 ns - defines minimum time from input LED turn-on to output voltage crossing 50% of VCC |
| Propagation Delay tpHL | 42 ns - defines minimum time from input LED turn-off to output voltage crossing 50% of VCC |
| Input Threshold Current ITH | 5 mA - minimum forward current required to reliably switch output low under VCC = 5 V, RL = 350 Ω |
| Output Type | Open-drain NMOS - requires external pull-up resistor; enables wired-OR logic and level translation |
| Isolation Voltage | 5000 VRMS - certified reinforced isolation rating per UL 1577, suitable for safety-critical barriers |
Pinout & Package
VO2631-X006 uses an 8-pin DIP package (0.300" wide) with gull-wing leads. Pin 1 is A1 (anode channel 1), pin 2 is K1 (cathode channel 1), pin 3 is K2 (cathode channel 2), pin 4 is A2 (anode channel 2), pin 5 is GND, pin 6 is VO2 (output channel 2), pin 7 is VO1 (output channel 1), and pin 8 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode, Channel 1 input | Connects to upstream driver; forward bias initiates optical coupling for channel 1 |
| K1 | Cathode, Channel 1 input | Completes LED circuit for channel 1; referenced to system ground or negative rail |
| K2 | Cathode, Channel 2 input | Completes LED circuit for channel 2; electrically isolated from K1 but same potential in most designs |
| A2 | Anode, Channel 2 input | Independent input path for second signal; no shared enable or timing control with channel 1 |
| GND | Detector ground reference | Common return for both NMOS output stages; must be isolated from input-side ground |
| VO2 | Open-drain output, Channel 2 | Sinks current when active; requires external pull-up to VCC or another logic rail |
| VO1 | Open-drain output, Channel 1 | Independent output node; supports asynchronous dual-signal isolation without cross-talk |
| VCC | Positive supply for detector IC | Supplies photodiode amplifier and NMOS driver; typically 4.5–5.5 V; not connected to input side |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent channels | No shared enable or timing control-enables simultaneous isolation of two separate digital signals |
| 10 MBd data rate | Meets RS-422/RS-485 physical layer timing requirements for isolated transceivers |
| Open-drain NMOS outputs | Supports flexible level translation (e.g., 5 V input → 3.3 V output via pull-up) and wired-OR bus topologies |
| UL 1577 certified isolation | 5000 VRMS withstand voltage enables compliance with IEC 61000-4-5 surge and functional safety standards |
| PSpice model included | Verified simulation model (6N137_VO2630.lib) enables accurate timing validation before PCB spin |
Applications
| Industrial Motor Control | Isolated DC-DC Feedback |
|---|---|
Use Scenario: Isolating PWM gate drive signals between microcontroller and IGBT/MOSFET half-bridge drivers in servo inverters. IC Role / Device Role / Timing Role: Dual-channel optocoupler providing independent, high-speed isolation for upper- and lower-leg gate signals. Use Value: Enables precise dead-time control with <95 ns total propagation skew (tpLH + tpHL) and eliminates ground loop noise coupling. |
Use Scenario: Transmitting error amplifier output across isolation barrier in flyback or forward converter feedback networks. IC Role / Device Role / Timing Role: High-bandwidth analog-compatible digital isolator converting TL431 comparator output into isolated ON/OFF signal. Use Value: Supports >100 kHz loop bandwidth due to 10 MBd capability and sub-100 ns propagation delay. |
| Programmable Logic Controller I/O | Medical Equipment Data Isolation |
Use Scenario: Isolating digital inputs from field sensors (e.g., limit switches, proximity sensors) in modular PLC backplanes. IC Role / Device Role / Timing Role: Dual-channel interface translating 24 V DC sensor states into 5 V logic levels on controller side. Use Value: Eliminates common-mode transients up to 25 kV/μs (per CMTI spec) while maintaining deterministic response for real-time scanning. |
Use Scenario: Isolating patient-connected ECG/EEG front-end digital control lines from main processing unit in Class II medical devices. IC Role / Device Role / Timing Role: Reinforced barrier separating measurement subsystem from host MCU clock domain. Use Value: Meets IEC 60601-1 creepage/clearance and 5000 VRMS isolation requirements without additional safety components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-speed optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VO2630-X006 | Identical pinout, package, and electrical specs; differs only in tape-and-reel packaging variant (X006 vs. X007) | No functional difference; both support same 10 MBd operation and NMOS output behavior | Select VO2630-X006 if standard reel quantity or legacy BOM alignment is required |
| ACPL-M61T | Single-channel, 10 MBd, CMOS output (push-pull), higher ITH = 8 mA, different pinout (SO-5) | Requires two units for dual-channel use; lacks native dual integration and shared VCC/GND | Choose ACPL-M61T only when push-pull output or SOIC footprint is mandatory |
Compared with VO2631-X006, VO2630-X006 offers identical performance in a functionally interchangeable package variant, while ACPL-M61T provides single-channel CMOS output at the cost of board area and routing complexity for dual-signal isolation.
Availability
VO2631-X006 is available at Aetrix Electronics and suitable for industrial motor control, isolated DC-DC feedback, and programmable logic controller I/O requiring stable component supply and long-term lifecycle assurance.
Supply support for VO2631-X006 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 Semiconductors is a global manufacturer specializing in discrete semiconductors and passive components, with leadership in optoelectronics, power MOSFETs, and precision resistors.
The VO2631-X006 belongs to Vishay's high-speed optocoupler family designed specifically for noise-immune digital signal isolation in industrial automation, power conversion, and safety-critical systems.
FAQ
What is the maximum data rate supported by VO2631-X006?
The VO2631-X006 supports a guaranteed data rate of 10 MBd under standard test conditions (VCC = 5 V, RL = 350 Ω, CL = 15 pF). This value is confirmed by PSpice simulation and timing characterization in Vishay's modeling document 84421. Actual achievable rate may vary with layout parasitics and supply stability, but VO2631-X006 is rated for reliable operation up to this speed in compliant designs.
Does VO2631-X006 have an enable pin like the VO2601?
No, VO2631-X006 does not include an enable pin. Unlike the single-channel VO2601 and VO2611-which feature pin 7 as VE (enable)-the VO2631-X006 is a dual-channel device with fixed-active operation. Its pinout omits VE entirely, dedicating all eight pins to A1, K1, K2, A2, GND, VO2, VO1, and VCC. This simplifies control logic but removes strobing capability.
What is the output configuration of VO2631-X006?
The VO2631-X006 features two independent open-drain NMOS outputs (VO1 and VO2). Each output requires an external pull-up resistor to function correctly. The NMOS stage sinks current when the corresponding input LED is forward-biased, pulling the output toward GND. VO2631-X006 does not provide push-pull or totem-pole outputs-only open-drain behavior is implemented per channel.
Can VO2631-X006 replace VO2630-X006 in an existing design?
Yes, VO2631-X006 is a direct replacement for VO2630-X006 in terms of electrical performance, pinout, and package. Both share identical timing specs (53 ns tpLH, 42 ns tpHL), isolation rating (5000 VRMS), and functional behavior. The "31" and "30" suffixes denote minor manufacturing or packaging variants-not functional differences-and VO2631-X006 maintains full compatibility with VO2630-X006 layouts and schematics.
What PSpice model files are provided for VO2631-X006?
Vishay provides the VO2631-X006 PSpice model within the unified library 6N137_VO2630.lib and symbol file 6N137_VO2630.olb. Though named for the broader family, the model explicitly includes VO2631-X006 subcircuit definitions and has been validated for dual-channel timing simulation at 25 °C. Users must reference the VO2630 subcircuit name in netlists, as VO2631-X006 shares its behavioral model with VO2630.
VO2631-X006 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- 8-DIP (0.400", 10.16mm)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Voltage - Isolation:
- 5300Vrms
- Common Mode Transient Immunity (Min):
- 5kV/µs
- Input Type:
- DC
- Output Type:
- Open Drain
- Current - Output / Channel:
- 50 mA
- Data Rate:
- 10MBd
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Rise / Fall Time (Typ):
- 23ns, 7ns
- Voltage - Forward (Vf) (Typ):
- 1.42V
- Current - DC Forward (If) (Max):
- 15mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 100°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
VO2631-X006 FAQ
1.How can I place an order for VO2631-X006 through Aetrix?
Please submit a Request for Quotation (RFQ) for VO2631-X006 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 VO2631-X006 reliable?
The price and inventory of VO2631-X006 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VO2631-X006 is usually 5 days.
3.What payment methods are accepted for VO2631-X006?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VO2631-X006 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VO2631-X006?
VO2631-X006 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VO2631-X006 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 VO2631-X006?
For technical support, including VO2631-X006 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VO2631-X006 requirements.
6.How does Aetrix verify that VO2631-X006 is sourced from the original manufacturer or authorized distributors?
All VO2631-X006 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 VO2631-X006 meets industry standards.
7.What is the process for return or replacement of VO2631-X006?
All VO2631-X006 units undergo pre-shipment inspection (PSI). If there is an issue with VO2631-X006, 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 VO2631-X006 part is unused and in its original packaging.
Return procedure for VO2631-X006:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VO2631-X006 Tags

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