VOL628A-2T Equivalent & Substitute Parts

Part Overview

The VOL628A-2T is an optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component provides 5000Vrms isolation with a single channel configuration in a 4-SOP surface mount package. The part is currently active in production with 737 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling design flexibility and supply chain continuity.

Substiute Parts

VOL628A-2T

Vishay Semiconductor Opto DivisionIn Stock: 755VOL628A-2T Datasheet

Current PartRFQ

VOL628A-2X001T

Vishay Semiconductor Opto DivisionIn Stock: 5208VOL628A-2X001T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VOL628A-2T is determined by strict equivalence across the following critical parameters:

• Voltage isolation rating: 5000Vrms
• Channel configuration: Single channel
• Current transfer ratio range: 63% to 125% @ 1mA
• Output type: Transistor
• Maximum output voltage: 80V
• Maximum output current per channel: 50mA
• Vce saturation: 400mV maximum
• Operating temperature range: -55°C to 110°C
• Package type: 4-SOP surface mount
• Input type: AC, DC compatible
• Compliance: ROHS3 Compliant

The VOL628A-2X001T meets all these parameters identically, establishing it as a parametric equivalent within the optoisolator category.

Parameter Comparison

Engineering Selection Recommendations

Both the VOL628A-2T and VOL628A-2X001T are active production parts from Vishay Semiconductor Opto Division with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability. The VOL628A-2X001T currently has higher stock availability at 5153 units compared to 737 units for the VOL628A-2T. Both parts maintain ROHS3 compliance and MSL Level 1 rating, suitable for standard surface mount assembly processes without moisture bake-out requirements.

Frequently Asked Questions (FAQ)

Q: Can VOL628A-2X001T replace VOL628A-2T in existing designs?

A: Yes. Both parts share identical electrical parameters including isolation voltage, current transfer ratio, output voltage and current ratings, timing characteristics, and operating temperature range. The package configuration, pin assignment, and mounting type are identical.

Q: Are there differences in compliance or certifications?

A: Both parts carry ROHS3 compliance, EAR99 export classification, and identical HTSUS codes. Moisture sensitivity levels are equivalent at MSL Level 1.

Q: What is the significance of the part number suffix difference?

A: The VOL628A-2X001T represents a variant within the VOL628 base product family. The suffix indicates a specific manufacturing or packaging configuration, but all critical electrical and mechanical parameters remain equivalent to the VOL628A-2T.

Q: Are there any package or pinout differences?

A: No. Both parts use the 4-SOP package with 4-SMD gull wing configuration. Pinout and mechanical dimensions are identical.

Q: Which part should be selected for new designs?

A: Selection should be based on current supply chain availability and lead time requirements. Both parts are functionally and mechanically interchangeable for applications requiring 5000Vrms isolation with single-channel transistor output in a 4-SOP package.