VO207AT-LB Equivalent & Substitute Parts

Part Overview

The VO207AT-LB is an optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This component provides galvanic isolation up to 4000Vrms with a single channel configuration in an 8-SOIC surface mount package. The VO207AT-LB is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure direct replacement capability in existing applications.

Substiute Parts

VO207AT-LB

Vishay Semiconductor Opto DivisionIn Stock: 1136VO207AT-LB Datasheet

Current PartRFQ

VO207AT

Vishay Semiconductor Opto DivisionIn Stock: 6383VO207AT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VO207AT-LB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Isolation voltage rating of 4000Vrms
• Single channel configuration
• Current transfer ratio range of 100% to 200% @ 10mA
• Transistor with base output type
• Maximum output voltage of 70V
• Output current capability of 50mA per channel
• Switching time specifications: 3µs turn-on, 3µs turn-off
• Rise and fall time characteristics of 3µs and 2µs respectively
• Input type: DC
• Forward voltage (Vf) of 1.3V typical
• Maximum forward current (If) of 60mA
• Vce saturation maximum of 400mV

Mechanical Equivalence Criteria:

• 8-SOIC package with 0.154" (3.90mm) width
• Surface mount configuration
• Pin-to-pin compatibility

Parts meeting all electrical and mechanical parameters are classified as direct substitutes. Packaging format differences (such as Tape & Reel versus bulk) do not affect functional substitution capability.

Parameter Comparison

Engineering Selection Recommendations

The VO207AT is a direct functional and mechanical substitute for the obsolete VO207AT-LB. Both parts are manufactured by Vishay Semiconductor Opto Division and share identical electrical specifications and 8-SOIC package configuration.

Selection Basis:

The VO207AT is classified as an active product, ensuring ongoing availability and manufacturing support. The VO207AT-LB, designated as obsolete, presents supply chain risk and potential discontinuation of manufacturing support.

The VO207AT provides additional compliance documentation not specified for the VO207AT-LB:

• ROHS3 Compliance certification
• Moisture Sensitivity Level (MSL) rating of 1 (Unlimited)
• REACH Unaffected status

These certifications confirm the substitute part meets current regulatory requirements for electronic component manufacturing and environmental compliance.

All electrical parameters, switching characteristics, isolation voltage rating, output current capability, and thermal operating range are identical between the two parts. The 8-SOIC package dimensions and surface mount configuration ensure pin-for-pin compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the VO207AT directly replace the VO207AT-LB in existing designs?

A: Yes. The VO207AT is a direct substitute. All electrical specifications, switching characteristics, isolation voltage, output current capability, and package dimensions are identical. The parts are pin-for-pin compatible and require no circuit modifications.

Q: What is the difference between VO207AT-LB and VO207AT?

A: The primary difference is product status. The VO207AT-LB is obsolete, while the VO207AT is active. The VO207AT also includes documented compliance certifications (ROHS3, REACH Unaffected, MSL Level 1) not specified for the VO207AT-LB. All functional and electrical parameters are identical.

Q: Are there packaging format differences between these parts?

A: The VO207AT-LB packaging format is not specified in available documentation. The VO207AT is supplied in Tape & Reel (TR) format. Both parts use the 8-SOIC package type with 0.154" (3.90mm) width. Packaging format does not affect functional substitution or PCB assembly compatibility.

Q: What isolation voltage does this optoisolator provide?

A: Both the VO207AT-LB and VO207AT provide 4000Vrms isolation voltage with a single channel configuration.

Q: What is the maximum output current capability?

A: The maximum output current per channel is 50mA for both parts.

Q: What are the switching time specifications?

A: Turn-on time is 3µs and turn-off time is 3µs (typical). Rise time is 3µs and fall time is 2µs (typical).

Q: Is the VO207AT compliant with current environmental regulations?

A: Yes. The VO207AT is ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and regulatory requirements for electronic components.

Q: What is the operating temperature range?

A: Both parts operate across a temperature range of -40°C to 100°C.

Q: What output type does this optoisolator use?

A: Both parts feature a transistor output with base connection, allowing direct control of external circuits through the base terminal.