HMA2701V Equivalent & Substitute Parts

Part Overview

The HMA2701V is a 3750Vrms optoisolator with transistor output manufactured by onsemi in a 4-SMD surface mount package. This component provides single-channel galvanic isolation for DC input applications with 80mA output current capability and 40V maximum output voltage. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Isolation Voltage	3750Vrms
Number of Channels	1
Output Type	Transistor
Input Type	DC
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	300% @ 5mA
Voltage - Output (Max)	40V
Current - Output / Channel	80mA
Vce Saturation (Max)	300mV
Operating Temperature Range	-40°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Isolation voltage: 3750Vrms (exact match required)
Number of channels: 1 (exact match required)
Output type: Transistor (exact match required)
Input type: DC (exact match required)
Current Transfer Ratio range: Minimum 50% @ 5mA (HMA2701V specification floor)
Maximum output voltage: 40V or greater
Maximum output current: 80mA or greater
Vce saturation: 300mV or lower
Operating temperature: Must encompass or exceed -40°C to 100°C range
Mounting type: Surface Mount (exact match required)
Package configuration: 4-SMD, Gull Wing (exact match required)

Substitute parts are grouped into two categories: direct equivalents (matching all parameters within tolerance) and functional alternatives (meeting all critical electrical specifications with minor parameter variations).

Parameter Comparison

Part Number	Manufacturer	Isolation Voltage	CTR Min @ 5mA	CTR Max @ 5mA	Vout Max	Iout / Channel	Vce Sat Max	Temp Range	Package	Product Status
HMA2701V	onsemi	3750Vrms	50%	300%	40V	80mA	300mV	-40°C ~ 100°C	4-SMD, Gull Wing	Obsolete
FODM2701R2	onsemi	3750Vrms	50%	300%	40V	80mA	300mV	-40°C ~ 110°C	4-SMD, Gull Wing	Active
PS2701-1-F3-A	Renesas Electronics	3750Vrms	50%	300%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Not For New Designs
PS2701-1-F3-H-A	Renesas Electronics	3750Vrms	50%	300%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active
HCPL-181-00BE	Broadcom Limited	3750Vrms	130%	260%	80V	50mA	200mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active
LTV-357T	Lite-On Inc.	3750Vrms	50%	600%	35V	50mA	200mV	-55°C ~ 110°C	4-SMD, Gull Wing	Active
LTV-357T-B	Lite-On Inc.	3750Vrms	130%	260%	35V	50mA	200mV	-55°C ~ 110°C	4-SMD, Gull Wing	Active
PS2701-1-F3-L-A	Renesas Electronics	3750Vrms	100%	300%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active
PS2701-1-F3-M-A	Renesas Electronics	3750Vrms	50%	150%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active
PS2701-1-F3-P-A	Renesas Electronics	3750Vrms	150%	300%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active
PS2701-1-L-A	Renesas Electronics	3750Vrms	100%	300%	40V	80mA	300mV	-55°C ~ 100°C	4-SMD, Gull Wing	Active

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute)

FODM2701R2 (onsemi) is the closest functional equivalent to HMA2701V. Both parts share identical electrical specifications across all critical parameters: 3750Vrms isolation, 50-300% current transfer ratio, 40V maximum output voltage, and 80mA output current. FODM2701R2 extends the operating temperature range to 110°C and maintains active product status with ROHS3 compliance, making it suitable for new designs and production continuity.

Active Alternatives with Full Electrical Compatibility

PS2701-1-F3-H-A, PS2701-1-F3-L-A, PS2701-1-F3-M-A, PS2701-1-F3-P-A, and PS2701-1-L-A (all Renesas Electronics NEPOC series) meet all critical electrical requirements. These parts maintain 3750Vrms isolation, 40V output voltage, and 80mA output current. Current transfer ratio specifications vary by part number (50-300% range across the series). All are ROHS3 compliant and active products. Selection among these variants depends on specific current transfer ratio requirements for your application.

Functional Alternatives with Parameter Trade-offs

HCPL-181-00BE (Broadcom) and LTV-357T / LTV-357T-B (Lite-On) maintain 3750Vrms isolation and 4-SMD package configuration but present output current limitations (50mA versus 80mA on HMA2701V). HCPL-181-00BE offers higher maximum output voltage (80V) and lower saturation voltage (200mV). LTV-357T variants provide extended temperature range (-55°C to 110°C) and lower saturation voltage. These alternatives are suitable only for applications where 50mA output current is sufficient.

Obsolete or Restricted Status

PS2701-1-F3-A (Renesas) carries "Not For New Designs" status and should be avoided for new product development despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can I use HCPL-181-00BE as a direct replacement for HMA2701V?

A: HCPL-181-00BE is electrically compatible for isolation voltage and package type but has reduced output current capability (50mA versus 80mA). Use this substitute only if your circuit requires maximum 50mA output current. The higher maximum output voltage (80V) and lower saturation voltage (200mV) may provide performance benefits in some applications.

Q: What is the difference between the various PS2701-1-F3 variants?

A: The PS2701-1-F3 series variants differ in current transfer ratio specifications. PS2701-1-F3-M-A has the narrowest range (50-150%), while PS2701-1-F3-L-A, PS2701-1-F3-P-A, and PS2701-1-L-A offer 100-300% or 150-300% ranges. All maintain identical isolation voltage, output voltage, output current, and saturation voltage. Select the variant matching your circuit's current transfer ratio requirements.

Q: Is FODM2701R2 a pin-compatible replacement?

A: FODM2701R2 maintains the same 4-SMD, Gull Wing package configuration as HMA2701V. Both parts are surface mount with identical pinout compatibility. Electrical specifications are functionally equivalent across all critical parameters.

Q: Why should I avoid PS2701-1-F3-A?

A: PS2701-1-F3-A carries "Not For New Designs" product status from Renesas Electronics. While electrically compatible, this designation indicates the manufacturer recommends against using this part in new product development. Use active alternatives such as PS2701-1-F3-H-A instead.

Q: What is the temperature range consideration for substitute selection?

A: HMA2701V operates from -40°C to 100°C. FODM2701R2 extends this to -55°C to 110°C, providing broader environmental coverage. Renesas PS2701 series and Lite-On LTV-357T variants offer -55°C to 100°C or -55°C to 110°C ranges. Select based on your application's thermal requirements; extended range parts provide design margin without performance penalty.

Q: Are all substitutes ROHS3 compliant?

A: FODM2701R2 and all active Renesas PS2701 variants are ROHS3 compliant. HCPL-181-00BE and LTV-357T / LTV-357T-B are also ROHS3 compliant. Compliance status is provided in the specification data for each part.

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