HMHA2801R3V Optoisolator Equivalent & Substitute Parts

Part Overview

The HMHA2801R3V is a high-voltage optoisolator with transistor output manufactured by onsemi. This component provides 3750Vrms isolation in a compact 4-Mini-Flat surface mount package, designed for applications requiring galvanic isolation with single-channel transistor switching capability. The part is currently classified as Obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design alternatives.

Substiute Parts

HMHA2801R3V

onsemiIn Stock: 902HMHA2801R3V 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 HMHA2801R3V are determined by strict equivalence across the following critical 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)
• Operating Temperature: -55°C ~ 100°C

The identified substitutes maintain identical electrical performance specifications and mechanical compatibility. Differences exist only in product status, packaging format, and compliance certifications, which do not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using HMHA2801R3V, the following selection criteria apply based on product status and compliance:

HMHA2801R2V is the preferred substitute for new designs and ongoing production. This part maintains Active product status with onsemi and carries ROHS3 compliance certification. Electrical and mechanical specifications are identical to the obsolete HMHA2801R3V, ensuring direct functional replacement without circuit modification.

HMHA2801R2 is available as an alternative where Tape & Reel packaging is not required. This part carries Not For New Designs status but maintains identical electrical performance and ROHS3 compliance. It is suitable for legacy system support and repair applications where component availability from alternative packaging formats is beneficial.

Both substitutes are manufactured by onsemi and share the same base product number HMHA2801, confirming design lineage and compatibility.

Frequently Asked Questions (FAQ)

Q: Can HMHA2801R2V directly replace HMHA2801R3V in existing circuits?

A: Yes. All electrical parameters, isolation voltage, output characteristics, and package dimensions are identical. No circuit modifications are required for direct substitution.

Q: What is the difference between HMHA2801R2 and HMHA2801R2V?

A: The primary difference is packaging format. HMHA2801R2 is supplied in Cut Tape (CT) & Digi-Reel® format, while HMHA2801R2V is supplied in Tape & Reel (TR) format. Electrical specifications and component performance are identical.

Q: Why is HMHA2801R3V classified as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by onsemi. HMHA2801R2V (Active status) and HMHA2801R2 (Not For New Designs status) represent the current product line continuation.

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

A: HMHA2801R2 and HMHA2801R2V both carry ROHS3 compliance certification. HMHA2801R3V compliance information is not specified in available documentation. All three parts are REACH Unaffected and classified under ECCN EAR99.

Q: What is the recommended part for new design implementations?

A: HMHA2801R2V is recommended for new designs. It maintains Active product status, ROHS3 compliance, and standard Tape & Reel packaging suitable for automated assembly processes.

Q: Can these parts be used interchangeably in high-isolation applications?

A: Yes. All three parts provide identical 3750Vrms isolation voltage, current transfer ratio specifications, and output characteristics. They are fully interchangeable from an electrical standpoint.