PS2701-1-V-M-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2701-1-V-M-A is a single-channel optoisolator with transistor output manufactured by CEL, designed for 3750Vrms isolation applications in surface mount 4-SMD packaging. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. The part operates across a temperature range of -55°C to 100°C with a maximum output current of 80mA per channel and is RoHS3 compliant.

Substiute Parts

PS2701-1-V-M-A

CELIn Stock: 1715PS2701-1-V-M-A Datasheet

Current PartRFQ

FODM2701

onsemiIn Stock: 20077FODM2701 Datasheet

SimilarRFQ

FODM2701R2

onsemiIn Stock: 1753FODM2701R2 Datasheet

SimilarRFQ

LTV-357T

Lite-On Inc.In Stock: 10147LTV-357T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2701-1-V-M-A is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 3750Vrms (mandatory match)
• Number of Channels: 1 (mandatory match)
• Output Type: Transistor (mandatory match)
• Input Type: DC (mandatory match)
• Current Transfer Ratio (Min): 50% @ 5mA (mandatory minimum)
• Voltage - Output (Max): 40V or greater (mandatory minimum)
• Current - Output / Channel: 80mA or greater (mandatory minimum)
• Vce Saturation (Max): 300mV or lower (mandatory maximum)
• Mounting Type: Surface Mount (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

The substitute parts FODM2701, FODM2701R2, and LTV-357T meet these criteria. Differences in Current Transfer Ratio (Max), Rise/Fall Time, Voltage - Forward (Vf), and Operating Temperature represent performance variations within acceptable substitution parameters.

Parameter Comparison

Engineering Selection Recommendations

FODM2701 and FODM2701R2 (onsemi)

Both onsemi parts are functionally equivalent to the PS2701-1-V-M-A across all critical substitution parameters. FODM2701R2 is supplied in Cut Tape (CT) & Digi-Reel® packaging with 1718 units in stock, while FODM2701 is supplied in Tube packaging with 20046 units in stock. Both maintain ROHS3 compliance and EAR99 classification. The primary difference is packaging format and inventory availability. Operating temperature range extends to 110°C, providing broader thermal coverage than the original part.

LTV-357T (Lite-On Inc.)

The LTV-357T meets all mandatory substitution criteria with notable performance enhancements: lower Vce Saturation (200mV versus 300mV), higher Current Transfer Ratio (Max) at 600%, and extended operating temperature range (-55°C to 110°C). However, maximum output current is 50mA versus 80mA for the original part, and maximum output voltage is 35V versus 40V. This part is suitable for applications where the reduced output current and voltage specifications are acceptable. LTV-357T is supplied in Cut Tape (CT) & Digi-Reel® packaging with 10099 units in stock and maintains ROHS3 compliance.

All three substitute parts are active products with established supply chains and full regulatory compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can FODM2701 and FODM2701R2 be used interchangeably with PS2701-1-V-M-A?

A: Yes. Both onsemi parts meet all mandatory electrical and mechanical substitution criteria. The difference between FODM2701 and FODM2701R2 is packaging format (Tube versus Cut Tape & Digi-Reel®) and inventory availability. Selection depends on procurement requirements and assembly processes.

Q: Is LTV-357T a direct substitute for PS2701-1-V-M-A?

A: LTV-357T meets all critical isolation, channel, and output type requirements. However, it has reduced maximum output current (50mA versus 80mA) and maximum output voltage (35V versus 40V). Applications requiring the full 80mA output current or 40V output voltage must use FODM2701 or FODM2701R2 instead.

Q: What are the key differences in Current Transfer Ratio between these parts?

A: PS2701-1-V-M-A specifies 50-150% CTR @ 5mA. FODM2701 and FODM2701R2 specify 50-300% CTR @ 5mA. LTV-357T specifies 50-600% CTR @ 5mA. All parts meet the 50% minimum requirement. Higher maximum CTR values indicate greater performance margin but do not affect substitution compatibility.

Q: Are there temperature range considerations for substitution?

A: PS2701-1-V-M-A operates -55°C to 100°C. FODM2701 and FODM2701R2 operate -40°C to 110°C. LTV-357T operates -55°C to 110°C. Applications requiring operation below -40°C must use PS2701-1-V-M-A or LTV-357T. All three parts support the upper temperature range of 100°C and above.

Q: Do all substitute parts maintain the same package footprint?

A: Yes. PS2701-1-V-M-A, FODM2701, FODM2701R2, and LTV-357T all use 4-SMD, Gull Wing surface mount packaging with identical PCB footprints. No layout modifications are required for substitution.

Q: What is the compliance status of these substitute parts?

A: All three substitute parts are ROHS3 compliant and classified as EAR99. FODM2701 and FODM2701R2 are REACH Unaffected. LTV-357T is REACH Unaffected. All parts carry HTSUS code 8541.49.8000.