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Vishay Semiconductor Opto Division VOR1121B6
- Part No.:
- VOR1121B6
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Solid State Relays (SSR)
- Package:
- 6-SMD (0.300", 7.62mm)
- Datasheet:
-
VOR1121B6.pdf
- Description:
- SSR RELAY SPST-NO 200MA 0-250V
- Quantity:
- Payment:
- Shipping:
Inventory:2,829
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Product details
Overview
VOR1121B6 from Vishay Semiconductors is a 250 V, 200 mA AC/DC-capable normally open solid-state relay (SPST, Form A) with 5300 VRMS isolation, 12 Ω typical on-resistance, and -40 °C to +100 °C operating range, used for telecom switching and industrial control signal isolation.
For engineers reviewing the VOR1121B6 datasheet, VOR1121B6 pinout, VOR1121B6 application, or VOR1121B6 equivalent, this optically isolated SSR delivers bounce-free DC/AC load switching, low 0.4 mA turn-on input current, and safety-certified insulation for metering and battery management systems.
Technical Context
The VOR1121B6 integrates a GaAlAs infrared LED input stage coupled via optical isolation to a high-performance MOSFET output stage, enabling clean, zero-crossing–free switching of both DC and AC loads up to 250 V. Its hybrid architecture supports fast 0.20 ms turn-on and 0.03 ms turn-off times.
It complies with UL 1577, cUL, and DIN EN 60747-5-5 (VDE 0884), featuring 8 mm creepage/clearance in SMD-6 package, 0.4 pF input-to-output capacitance, and 10¹² Ω minimum insulation resistance at 25 °C - critical for noise-sensitive instrumentation interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5300 VRMS - enables safe galvanic separation between control and load circuits in industrial environments |
| Load Voltage Rating | 250 V (DC or peak AC) - supports universal AC mains and high-voltage DC battery monitoring applications |
| Continuous Load Current | 200 mA (AC/DC config) - sufficient for driving relays, solenoids, and sensor interface loads |
| On-Resistance | 12 Ω typical (AC/DC), 3.2 Ω typical (DC-only) - minimizes power loss and self-heating under load |
| Turn-On / Turn-Off Time | 0.20 ms / 0.03 ms - enables precise timing control in automatic test equipment and fast-switching PLC I/O |
| Ambient Temperature Range | -40 °C to +100 °C - ensures reliable operation in uncooled industrial enclosures and outdoor metering units |
| Input Forward Current (Turn-On) | 0.4 mA typical - allows direct drive from low-power microcontrollers without external amplification |
Pinout & Package
SMD-6 surface-mount package with gull-wing leads, 7.25 mm × 6.65 mm footprint, 0.4 mm minimum insulation thickness, and 8 mm creepage/clearance per safety standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Input LED) | Positive terminal for IRED forward bias; requires current-limiting resistor |
| 2 | Cathode (Input LED) | Ground return for input side; defines logic polarity of control signal |
| 3 | No Connection | Internally unused; must remain floating per datasheet Fig. 1 (AC/DC config) |
| 4 | Output Source (Load +) | High-side output terminal for DC-only configuration; connects to positive load rail |
| 5 | Output Drain (Load ±) | Common output terminal for AC/DC configuration; switches bidirectional load current |
| 6 | Output Sink (Load –) | Low-side output terminal for DC-only configuration; connects to negative load return |
Key Features
| Feature | Design Value |
|---|---|
| Clean bounce-free switching | Eliminates contact arcing and EMI in security alarm triggers and relay replacement circuits |
| Low 0.4 mA turn-on input current | Reduces MCU GPIO loading and enables direct interfacing with 3.3 V logic without buffer stages |
| Hybrid GaAlAs LED + MOSFET architecture | Combines high CTR efficiency with low RON and wide temperature stability (-40 °C to +100 °C) |
| 5300 VRMS isolation & VDE/UL certification | Meets reinforced insulation requirements for Class I equipment in industrial and utility metering |
| 0.4 pF input-to-output capacitance | Minimizes high-frequency coupling noise in precision analog signal paths and data acquisition front-ends |
Applications
| Telecom Line Switching | Metering Interface Isolation |
|---|---|
|
Use Scenario: Selectively connecting/disconnecting subscriber line test circuits in DSLAMs and remote PHY nodes. IC Role / Device Role / Timing Role: Solid-state relay providing galvanically isolated, bounce-free switching of POTS/DSL line signals. Use Value: Eliminates mechanical relay wear and contact oxidation while maintaining <200 µs switching latency for automated line diagnostics. |
Use Scenario: Isolating pulse outputs from kWh meters to prevent ground-loop interference in AMI concentrators. IC Role / Device Role / Timing Role: Optically isolated SSR acting as a safety barrier between high-voltage metering domain and low-voltage MCU domain. Use Value: Enables 5300 VRMS reinforced insulation compliance without external transformers or discrete optocoupler + MOSFET combinations. |
| Industrial PLC Digital Output | Battery Management System (BMS) Cell Balancing Control |
|
Use Scenario: Driving 24 V DC solenoid valves and indicator lamps in factory automation I/O modules. IC Role / Device Role / Timing Role: Normally open SSR replacing electromechanical relays in DIN-rail mounted PLC output cards. Use Value: Delivers 200 mA load current with 12 Ω RON and -40 °C to +100 °C operation, eliminating coil burnout and contact welding failures. |
Use Scenario: Controlling passive cell-balancing resistors across Li-ion battery strings in EV and ESS BMS boards. IC Role / Device Role / Timing Role: High-isolation SSR switching balancing current paths without introducing leakage or timing jitter. Use Value: Provides <1 nA off-state leakage at ±200 V and 0.03 ms turn-off time to ensure precise, synchronized balancing pulses. |
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 400 mA load current but only 60 V load voltage rating; 1500 VRMS isolation | Better suited for low-voltage DC-only industrial controls; insufficient for 250 V AC metering | Select when higher load current is needed at ≤60 V and lower isolation suffices |
| PS8501-AX | 1000 VRMS isolation; 100 mA load current; 10 Ω RON; DIP-6 only | Limited to lower-power instrumentation; lacks UL/VDE safety certifications for mains-connected equipment | Choose for cost-sensitive, non-safety-critical lab equipment where SMD-6 is not required |
Compared with TLP3554(TP,E and PS8501-AX, the VOR1121B6 uniquely combines 250 V load capability, 5300 VRMS isolation, and SMD-6 packaging - making it the only option qualified for UL/VDE-compliant AC mains switching in compact automated test and utility metering designs.
Availability
VOR1121B6 is available at Aetrix Electronics and suitable for telecom switching, industrial PLC outputs, metering interfaces, battery management systems, and security equipment requiring stable component supply and long-term lifecycle support.
Supply support for VOR1121B6 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 leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors for industrial and automotive markets.
The VOR1121 series is designed as a safety-certified, high-isolation solid-state relay family targeting replacement of electromechanical relays in utility metering, telecom infrastructure, and industrial control systems where longevity and noise immunity are critical.
FAQ
What is the maximum load voltage the VOR1121B6 can switch?
The VOR1121B6 supports a maximum DC or peak AC load voltage of 250 V, as specified in its absolute maximum ratings. This rating applies across its full operating ambient temperature range (-40 °C to +100 °C) and is validated per UL 1577 and DIN EN 60747-5-5 safety standards. The VOR1121B6 maintains this rating in both AC/DC and DC-only configurations, making it suitable for 230 VAC mains interfacing and high-voltage DC battery monitoring applications.
Does the VOR1121B6 support AC load switching?
Yes, the VOR1121B6 supports AC load switching in its default AC/DC configuration (pins 4 and 5 active), delivering 200 mA continuous current with 12 Ω typical on-resistance. Its MOSFET output stage enables bidirectional conduction without zero-crossing circuitry, allowing true random-phase switching of resistive and inductive AC loads up to 250 V peak. Pin 3 is left unconnected in this mode per Figure 1 of the datasheet.
What is the minimum input current required to turn on the VOR1121B6?
The VOR1121B6 requires a typical forward current of 0.4 mA (with max 2 mA) to achieve reliable turn-on at 100 mA load current and 10 ms pulse width, per its electrical characteristics table. This ultra-low drive requirement allows direct connection to 3.3 V or 5 V microcontroller GPIOs using only a series resistor - no external transistor buffer is needed for most digital control applications.
How does the VOR1121B6 differ from the VOR1121A6?
The VOR1121B6 uses an SMD-6 surface-mount package with 8 mm creepage/clearance and tape-and-reel or tube packaging, while the VOR1121A6 uses a DIP-6 through-hole package with 7 mm creepage/clearance and tube-only packaging. Both share identical electrical specifications, safety ratings, and pin functions - the distinction is purely mechanical and assembly-related. The "B" suffix denotes SMD-6; "A" denotes DIP-6.
Is the VOR1121B6 certified for use in safety-critical applications?
Yes, the VOR1121B6 carries UL 1577 (5300 VRMS), cUL, and DIN EN 60747-5-5 (VDE 0884) certifications, with 890 Vpeak maximum repetitive peak isolation voltage and 8000 Vpeak transient isolation voltage. It is rated for "safe electrical insulation" per IEC 60747-5-5 §7.4.3.8.2 when used within its specified safety parameters and with appropriate protective circuitry - qualifying it for reinforced insulation in Class I industrial and utility equipment.
VOR1121B6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VOR1121
- Packaging:
- Tube
- 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 ~ 250 V
- Load Current:
- 200 mA
- On-State Resistance (Max):
- 15 Ohms
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 100°C
- Supplier Device Package:
- 6-SMD
- Approval Agency:
- cUL, DIN, UL
- Grade:
- -
- Qualification:
- -
VOR1121B6 FAQ
1.How can I place an order for VOR1121B6 through Aetrix?
Please submit a Request for Quotation (RFQ) for VOR1121B6 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 VOR1121B6 reliable?
The price and inventory of VOR1121B6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VOR1121B6 is usually 5 days.
3.What payment methods are accepted for VOR1121B6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VOR1121B6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VOR1121B6?
VOR1121B6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VOR1121B6 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 VOR1121B6?
For technical support, including VOR1121B6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VOR1121B6 requirements.
6.How does Aetrix verify that VOR1121B6 is sourced from the original manufacturer or authorized distributors?
All VOR1121B6 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 VOR1121B6 meets industry standards.
7.What is the process for return or replacement of VOR1121B6?
All VOR1121B6 units undergo pre-shipment inspection (PSI). If there is an issue with VOR1121B6, 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 VOR1121B6 part is unused and in its original packaging.
Return procedure for VOR1121B6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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