HMHA2801AR3 Equivalent & Substitute Parts

Part Overview

The HMHA2801AR3 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 listed as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

HMHA2801AR3

onsemiIn Stock: 1108HMHA2801AR3 Datasheet

Current PartRFQ

HMHA2801AR2

onsemiIn Stock: 80283HMHA2801AR2 Datasheet

Parametric EquivalentRFQ

HMHA2801AR2V

onsemiIn Stock: 18324HMHA2801AR2V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HMHA2801AR3 can be substituted with active production alternatives from the same base product family (HMHA2801) that maintain identical electrical and mechanical specifications. Substitution eligibility is determined by the following criteria:

• Isolation voltage rating: 3750Vrms (required match)
• Channel configuration: 1 channel (required match)
• Output type: Transistor (required match)
• Current transfer ratio range: 80% to 160% @ 5mA (required match)
• Maximum output voltage: 80V (required match)
• Maximum output current: 50mA (required match)
• Rise/Fall time: 3µs, 3µs (required match)
• Operating temperature range: -55°C to 100°C (required match)
• Package: 4-SOIC / 4-Mini-Flat (required match)

The identified substitutes differ only in packaging format (Tape & Reel or Cut Tape & Digi-Reel) and product status (Active vs. Obsolete), with no variation in electrical performance or functional characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both HMHA2801AR2 and HMHA2801AR2V are direct functional equivalents to the obsolete HMHA2801AR3, with identical electrical specifications and mechanical compatibility. Selection between these alternatives should be based on procurement and supply chain requirements:

HMHA2801AR2 is supplied in Tape & Reel format, suitable for high-volume automated assembly operations. This packaging format is standard for production environments requiring continuous component feed through pick-and-place equipment.

HMHA2801AR2V is supplied in Cut Tape and Digi-Reel format, appropriate for lower-volume applications, prototyping, or mixed-component procurement scenarios where individual component access is beneficial.

Both substitutes carry Active product status and ROHS3 compliance certification, providing long-term availability and regulatory alignment for new designs or design refreshes.

Frequently Asked Questions (FAQ)

Q: Can HMHA2801AR2 and HMHA2801AR2V be used interchangeably with HMHA2801AR3?

A: Yes. All three parts share identical electrical specifications, isolation ratings, output characteristics, and package dimensions. The only differences are product status (Active vs. Obsolete) and packaging format (Tape & Reel, Cut Tape & Digi-Reel, or Bulk). Functional performance in circuit applications is equivalent.

Q: What is the primary reason to transition from HMHA2801AR3 to an alternative?

A: The HMHA2801AR3 is classified as obsolete. HMHA2801AR2 and HMHA2801AR2V are active production parts from the same product family, ensuring continued availability, manufacturing support, and compliance with current regulatory standards.

Q: Are there any electrical performance differences between the three parts?

A: No. All three parts maintain the same isolation voltage (3750Vrms), current transfer ratio range (80% to 160% @ 5mA), output voltage and current ratings (80V, 50mA), and operating temperature range (-55°C to 100°C).

Q: How do packaging formats affect component selection?

A: Packaging format selection depends on assembly methodology. Tape & Reel (HMHA2801AR2) is optimized for automated high-speed assembly lines. Cut Tape & Digi-Reel (HMHA2801AR2V) provides flexibility for manual assembly, prototyping, or mixed-component orders. Both formats contain identical components with no functional distinction.

Q: Are ROHS3 compliance differences significant?

A: HMHA2801AR2 and HMHA2801AR2V are both ROHS3 compliant. The HMHA2801AR3 does not specify RoHS status. For applications subject to RoHS regulations or customer requirements, the active alternatives provide documented compliance assurance.

Q: Can these parts be used in new designs?

A: Yes. HMHA2801AR2 and HMHA2801AR2V are active production components suitable for new designs. They provide identical functionality to the obsolete HMHA2801AR3 with the added benefit of long-term availability and regulatory compliance documentation.