VOD207T-LB Equivalent & Substitute Parts

Part Overview

The VOD207T-LB is a 4000Vrms optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component features 2 channels in an 8-SOIC surface mount package and is designed for high-voltage isolation applications requiring DC input control. The VOD207T-LB is classified as obsolete, making identification of active equivalent parts essential for ongoing production and design continuity. The substitute part VOD207T provides identical electrical and mechanical specifications while maintaining active product status and improved supply availability.

Substiute Parts

VOD207T-LB
Vishay Semiconductor Opto DivisionIn Stock: 705VOD207T-LB Datasheet
VOD207T-LB
Current Part
VOD207T
Vishay Semiconductor Opto DivisionIn Stock: 28886VOD207T Datasheet
VOD207T
Parametric Equivalent

Key Parameters

Parameter Value
Number of Channels 2
Voltage - Isolation 4000Vrms
Current Transfer Ratio (Min) 100% @ 10mA
Current Transfer Ratio (Max) 200% @ 10mA
Turn On / Turn Off Time (Typ) 5µs, 4µs
Rise / Fall Time (Typ) 5µs, 4µs
Input Type DC
Output Type Transistor
Voltage - Output (Max) 70V
Current - Output / Channel 50mA
Voltage - Forward (Vf) (Typ) 1.2V
Current - DC Forward (If) (Max) 30mA
Vce Saturation (Max) 400mV
Operating Temperature -40°C ~ 100°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)

Substitute Part Grouping Explanation

Substitution of the VOD207T-LB with the VOD207T is based on complete electrical and mechanical parameter equivalence. Both parts share identical specifications across all critical isolation, switching, and output characteristics. The substitution is valid because the following key parameters match exactly:

  • Isolation voltage rating: 4000Vrms
  • Channel configuration: 2 channels
  • Current transfer ratio range: 100% to 200% @ 10mA
  • Switching performance: 5µs turn-on, 4µs turn-off
  • Output stage: Transistor type with 70V maximum rating
  • Output current capability: 50mA per channel
  • Package form factor: 8-SOIC surface mount
  • Operating temperature range: -40°C to 100°C

The VOD207T differs from the VOD207T-LB only in product status (active versus obsolete) and packaging format (Cut Tape and Digi-Reel availability versus standard packaging). No electrical or mechanical redesign is required for this substitution.

Parameter Comparison

Parameter VOD207T-LB (Main Part) VOD207T (Substitute) Match Status
Manufacturer Vishay Semiconductor Opto Division Vishay Semiconductor Opto Division Identical
Category Optoisolators Optoisolators Identical
Number of Channels 2 2 Identical
Voltage - Isolation 4000Vrms 4000Vrms Identical
Current Transfer Ratio (Min) 100% @ 10mA 100% @ 10mA Identical
Current Transfer Ratio (Max) 200% @ 10mA 200% @ 10mA Identical
Turn On / Turn Off Time (Typ) 5µs, 4µs 5µs, 4µs Identical
Rise / Fall Time (Typ) 5µs, 4µs 5µs, 4µs Identical
Input Type DC DC Identical
Output Type Transistor Transistor Identical
Voltage - Output (Max) 70V 70V Identical
Current - Output / Channel 50mA 50mA Identical
Voltage - Forward (Vf) (Typ) 1.2V 1.2V Identical
Current - DC Forward (If) (Max) 30mA 30mA Identical
Vce Saturation (Max) 400mV 400mV Identical
Operating Temperature -40°C ~ 100°C -40°C ~ 100°C Identical
Mounting Type Surface Mount Surface Mount Identical
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) Identical
Product Status Obsolete Active Different
RoHS Status Not specified ROHS3 Compliant Substitute provides compliance
Moisture Sensitivity Level (MSL) Not specified 1 (Unlimited) Substitute provides specification

Engineering Selection Recommendations

The VOD207T is the direct substitute for the VOD207T-LB based on complete electrical and mechanical equivalence. Selection of the VOD207T is supported by the following factors:

Product Status: The VOD207T maintains active product status with Vishay Semiconductor Opto Division, ensuring continued availability and manufacturing support. The VOD207T-LB is classified as obsolete, creating supply chain risk for new designs and production continuity.

Regulatory Compliance: The VOD207T is certified as ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components. These certifications are essential for applications subject to EU directives and similar regulatory frameworks.

Moisture Sensitivity: The VOD207T specifies Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture-related handling restrictions during storage and assembly. This classification simplifies logistics and manufacturing processes.

Supply Availability: The VOD207T is available in Cut Tape and Digi-Reel packaging formats with significantly higher inventory levels (28,800 pieces) compared to the obsolete VOD207T-LB variant, supporting both prototype and production volume requirements.

No electrical redesign, circuit modification, or performance trade-offs are required when substituting the VOD207T for the VOD207T-LB in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the VOD207T directly replace the VOD207T-LB without circuit modifications?

A: Yes. The VOD207T is a direct electrical and mechanical equivalent. All isolation voltage, switching performance, output current, and package specifications are identical. No circuit redesign is required.

Q: What is the difference between VOD207T-LB and VOD207T?

A: The VOD207T-LB is an obsolete variant. The VOD207T is the active equivalent with identical electrical specifications. The VOD207T includes ROHS3 compliance certification and MSL 1 moisture sensitivity rating. Packaging availability differs, with the VOD207T offered in Cut Tape and Digi-Reel formats.

Q: Are the 8-SOIC packages physically identical?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. PCB footprints, land patterns, and assembly processes are identical.

Q: Does the VOD207T meet current environmental regulations?

A: Yes. The VOD207T is ROHS3 Compliant and REACH Unaffected, meeting EU environmental directives and similar regulatory requirements applicable to electronic components.

Q: What is the Moisture Sensitivity Level (MSL) for the VOD207T?

A: The VOD207T is rated MSL 1 (Unlimited), indicating no moisture-related handling restrictions. Components can be stored and handled without special humidity control measures.

Q: Is the VOD207T available in the same packaging formats as the VOD207T-LB?

A: The VOD207T is available in Cut Tape (CT) and Digi-Reel packaging formats. Packaging format selection depends on application requirements and order quantities. Both formats contain identical components.

Q: What is the current transfer ratio specification for the VOD207T?

A: The current transfer ratio ranges from 100% to 200% at 10mA input current. This specification is identical for both the VOD207T-LB and VOD207T.

Q: Can the VOD207T be used in high-temperature applications?

A: Yes. The VOD207T operates across the temperature range of -40°C to 100°C, supporting both industrial and extended temperature applications within this specification.

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