HMHA2801AR3V Equivalent & Substitute Parts

Part Overview

The HMHA2801AR3V 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 production and design continuity.

Key Parameters

Parameter	Value
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	80% @ 5mA
Current Transfer Ratio (Max)	160% @ 5mA
Rise / Fall Time (Typ)	3µs, 3µs
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	80V
Current - Output / Channel	50mA
Voltage - Forward (Vf) (Typ)	1.3V (Max)
Current - DC Forward (If) (Max)	50 mA
Vce Saturation (Max)	300mV
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	4-SOIC (0.173", 4.40mm Width)
Supplier Device Package	4-Mini-Flat
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution of the HMHA2801AR3V is based on electrical and mechanical parameter equivalence within the HMHA2801 base product family. The substitute parts HMHA2801AR2 and HMHA2801AR2V maintain identical specifications across all critical parameters:

Voltage isolation rating: 3750Vrms
Current transfer ratio range: 80% to 160% @ 5mA
Output characteristics: 80V maximum, 50mA per channel
Rise and fall times: 3µs each
Operating temperature range: -55°C to 100°C
Package configuration: 4-Mini-Flat (4-SOIC)
Saturation voltage: 300mV maximum

The primary differences between substitute parts are packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and product status (Active versus Obsolete). Both substitutes are manufactured by onsemi and are electrically and mechanically interchangeable with the main part.

Parameter Comparison

Parameter	HMHA2801AR3V	HMHA2801AR2	HMHA2801AR2V
Manufacturer	onsemi	onsemi	onsemi
Product Status	Obsolete	Active	Active
Number of Channels	1	1	1
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms
Current Transfer Ratio (Min)	80% @ 5mA	80% @ 5mA	80% @ 5mA
Current Transfer Ratio (Max)	160% @ 5mA	160% @ 5mA	160% @ 5mA
Rise / Fall Time (Typ)	3µs, 3µs	3µs, 3µs	3µs, 3µs
Input Type	DC	DC	DC
Output Type	Transistor	Transistor	Transistor
Voltage - Output (Max)	80V	80V	80V
Current - Output / Channel	50mA	50mA	50mA
Voltage - Forward (Vf) (Typ)	1.3V (Max)	1.3V (Max)	1.3V (Max)
Current - DC Forward (If) (Max)	50 mA	50 mA	50 mA
Vce Saturation (Max)	300mV	300mV	300mV
Operating Temperature	-55°C ~ 100°C	-55°C ~ 100°C	-55°C ~ 100°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SOIC (0.173", 4.40mm Width)	4-SOIC (0.173", 4.40mm Width)	4-SOIC (0.173", 4.40mm Width)
Supplier Device Package	4-Mini-Flat	4-Mini-Flat	4-Mini-Flat
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
Packaging Format	Bulk	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Both HMHA2801AR2 and HMHA2801AR2V are direct functional equivalents to the HMHA2801AR3V. Selection between these substitutes should be based on procurement and supply chain requirements:

HMHA2801AR2 is supplied in Tape & Reel format and is suitable for high-volume automated assembly operations. This part carries Active product status with ROHS3 compliance certification.

HMHA2801AR2V is supplied in Cut Tape and Digi-Reel format, offering flexibility for lower-volume or mixed-component pick-and-place operations. This part also carries Active product status with ROHS3 compliance certification.

Both substitutes provide superior availability compared to the obsolete HMHA2801AR3V and maintain full electrical and mechanical compatibility for direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Are HMHA2801AR2 and HMHA2801AR2V electrically identical to HMHA2801AR3V?

A: Yes. All three parts share identical electrical specifications including 3750Vrms isolation voltage, 80-160% current transfer ratio, 80V maximum output voltage, and 50mA output current per channel. They are functionally interchangeable.

Q: What is the difference between the two substitute parts?

A: The primary difference is packaging format. HMHA2801AR2 is supplied in Tape & Reel format for automated assembly, while HMHA2801AR2V is supplied in Cut Tape and Digi-Reel format for flexible component handling. Both are electrically identical.

Q: Can I use HMHA2801AR2 or HMHA2801AR2V as direct replacements on existing PCBs designed for HMHA2801AR3V?

A: Yes. Both substitute parts use the identical 4-Mini-Flat package configuration with the same pinout and mechanical dimensions. No PCB modifications are required.

Q: Why is HMHA2801AR3V listed as obsolete?

A: The HMHA2801AR3V has been discontinued by onsemi. The active equivalents HMHA2801AR2 and HMHA2801AR2V provide continued access to this optoisolator functionality with improved availability and compliance certifications.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both HMHA2801AR2 and HMHA2801AR2V are ROHS3 compliant, whereas RoHS status was not specified for the obsolete HMHA2801AR3V.

Q: Which substitute should I select for new designs?

A: Either substitute is suitable for new designs. Choose based on your assembly process: HMHA2801AR2 for high-volume automated lines using tape-fed equipment, or HMHA2801AR2V for flexible assembly environments requiring cut tape or reel formats.

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