HMHA2801R4V Equivalent & Substitute Parts

Part Overview

The HMHA2801R4V is an optoisolator with transistor output manufactured by onsemi, designed for high-voltage isolation applications requiring 3750Vrms isolation rating. This component features a single channel configuration in a 4-Mini-Flat surface mount package. The part is currently classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing design support and component procurement.

Substiute Parts

HMHA2801R4V

onsemiIn Stock: 1145HMHA2801R4V Datasheet

Current PartRFQ

HMHA2801R2

onsemiIn Stock: 59095HMHA2801R2 Datasheet

Parametric EquivalentRFQ

HMHA2801R2V

onsemiIn Stock: 42386HMHA2801R2V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HMHA2801R4V are determined by matching the following critical electrical and mechanical parameters:

• Voltage - Isolation: 3750Vrms
• Number of Channels: 1
• Output Type: Transistor
• Current Transfer Ratio range: 80% to 600% @ 5mA
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Package / Case: 4-SOIC (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Operating Temperature: -55°C ~ 100°C

The identified substitute parts maintain identical electrical specifications and physical packaging, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using HMHA2801R4V, the HMHA2801R2V is the preferred substitute. This part maintains all electrical and mechanical specifications while offering Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment for new designs and production continuity.

The HMHA2801R2 provides an alternative with identical electrical performance but carries Not For New Designs status, making it suitable only for legacy system maintenance or replacement scenarios where new design qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can HMHA2801R2V directly replace HMHA2801R4V in existing circuits?

A: Yes. The HMHA2801R2V maintains identical electrical specifications including isolation voltage, current transfer ratio, output voltage, output current, and switching characteristics. The 4-SOIC package dimensions are identical, enabling direct pin-compatible substitution.

Q: What is the difference between HMHA2801R2 and HMHA2801R2V?

A: Both parts share identical electrical specifications and package configuration. The primary difference is packaging format: HMHA2801R2 is supplied in Cut Tape and Digi-Reel formats, while HMHA2801R2V is supplied in Tape & Reel format. Additionally, HMHA2801R2V maintains Active product status, whereas HMHA2801R2 is classified as Not For New Designs.

Q: Why is HMHA2801R4V classified as Obsolete?

A: Obsolete classification indicates the manufacturer has discontinued production. Substitute parts with identical specifications remain available to support existing applications and facilitate design transitions.

Q: Are there any compliance differences between the substitute parts?

A: HMHA2801R2 and HMHA2801R2V both carry ROHS3 Compliant and REACH Unaffected certifications. The original HMHA2801R4V compliance status was not specified in available documentation.

Q: What packaging options are available for these optoisolators?

A: All three parts use the 4-SOIC (0.173", 4.40mm Width) surface mount package. Packaging supply formats differ: HMHA2801R4V in standard packaging, HMHA2801R2 in Cut Tape and Digi-Reel, and HMHA2801R2V in Tape & Reel format.