VOR2121B8 Vishay Integrated Circuit (Small Outline Packages) In Stock

Name: VOR2121B8
Brand: Vishay
SKU: VOR2121B8
Availability: InStock

Vishay VOR2121B8 is a dual-element DC optocoupler with 5300 V maximum isolation voltage, 1.4 V control voltage, and 2 mA maximum forward current in a small outline package, carrying UL and VDE approvals. From $2.50 in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

VOR2121B8Small Outline Packages

Quick Facts

Manufacturer: Vishay
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: VOR2121B8 Datasheet PDF
Category: Integrated Circuit
Price: From $1.3510(MOQ 250)
Temp Range: -40.0°C to 100.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of VOR2121B8?

5300 V maximum isolation voltage with UL and VDE approvals, meeting stringent safety requirements for industrial and medical galvanic isolation applications
Dual separate optocoupler elements in a single package with 1.4 V control voltage and 0.4 mA control current enabling efficient low-power drive circuits
DC input type with 2 mA maximum forward current per element, suitable for direct MCU or logic-level drive without external current amplification in typical circuits

What is VOR2121B8 used for?

The Vishay VOR2121B8 is used in industrial motor drives, power converters, and medical diagnostic equipment where dual-channel galvanic isolation of up to 5300 V is required between control circuits and high-voltage power stages. Its low 1.4 V control voltage and 0.4 mA control current make it suitable for direct drive from low-voltage MCU output pins without additional buffer circuitry. The VDE and UL approvals qualify it for safety-critical applications in European and North American regulatory environments.

What are the specifications of VOR2121B8?

Factory Lead Time	6Weeks
Date Of Intro	2016-09-25
YTEOL	6.85
Additional Feature	UL RECOGNIZED, VDE APPROVED
Configuration	SEPARATE, 2 ELEMENTS
Control Current	0.0004A
Control Voltage	1.4V
Forward Current-Max	0.002A
Input Type	DC
Isolation Voltage-Max	5300V
Mounting Feature	SURFACE MOUNT
Number of Elements	2
On-state Resistance-Max	15Ω
Optoelectronic Device Type	TRANSISTOR OUTPUT SSR
Output Circuit Type	MOSFET
Overall Height	3.55mm
Overall Length	10.16mm
Packing Method	TUBE
Surface Mount	YES
Terminal Finish	Tin (Sn)
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8541.40.95.00

Where can I find the VOR2121B8 datasheet?

VOR2121B8 Datasheet Download

Official datasheet from Vishay

What are equivalent replacements for VOR2121B8?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the maximum isolation voltage of the VOR2121B8, and which safety certifications does it carry?

The Vishay VOR2121B8 provides a maximum isolation voltage of 5300 V and carries both UL recognition and VDE approval, making it compliant with North American and European safety standards. This high isolation rating qualifies it for use in industrial motor controllers, switch-mode power supplies, and medical equipment requiring reinforced or basic galvanic isolation per IEC 60950 or IEC 62368 standards.

How many optocoupler elements does the VOR2121B8 contain, and what are their forward current and control voltage ratings?

The VOR2121B8 contains 2 separate optocoupler elements in one package. Each element has a maximum forward current of 2 mA and a control voltage of 1.4 V with a control current of 0.4 mA. These low drive requirements allow direct connection to 3.3 V or 5 V MCU GPIO outputs without additional series resistor calculations beyond standard current limiting to 2 mA maximum.

In which circuit architectures does the dual-element VOR2121B8 provide an advantage over two single-channel optocouplers?

Using the dual-element VOR2121B8 instead of two discrete single-channel optocouplers reduces PCB footprint by integrating 2 isolated channels into one small outline package, lowering component count and simplifying layout. This is particularly advantageous in half-bridge or full-bridge gate drive circuits where two isolated control signals must switch complementary high-side and low-side power devices, while maintaining 5300 V channel-to-channel isolation.

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About Vishay

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Reference Price (USD)

From $1.3510

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
250+	$1.9200	$480.00
500+	$1.8600	$930.00
1000+	$1.8000	$1800.00
5000+	$1.6597	$8298.60
8000+	$1.3580	$10864.00
16000+	$1.3510	$21616.00

pcs

Unit price: $1.9200 · Total: $480.00

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

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Procurement Manager, VoltEdge Energy, India