PS2701-1-F3-M-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2701-1-F3-M-A is a single-channel optoisolator with transistor output, rated for 3750Vrms isolation voltage. This component is manufactured by CEL and is discontinued at DiGi Electronics. Due to its discontinued status, identifying suitable equivalent parts from active manufacturers ensures continued design support and supply chain availability. The substitute parts listed maintain electrical and mechanical compatibility within the specified parameter ranges for this optoisolator category.

Substiute Parts

PS2701-1-F3-M-A

CELIn Stock: 1140PS2701-1-F3-M-A Datasheet

Current PartRFQ

PS2701-1-M-A

Renesas Electronics CorporationIn Stock: 5712PS2701-1-M-A Datasheet

DirectRFQ

FODM2701

onsemiIn Stock: 20077FODM2701 Datasheet

SimilarRFQ

FODM2701R2

onsemiIn Stock: 1753FODM2701R2 Datasheet

SimilarRFQ

LTV-357T

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2701-1-F3-M-A is based on the following electrical and mechanical criteria:

Critical Match Parameters:

• Voltage - Isolation: 3750Vrms (all substitutes)
• Number of Channels: 1 (all substitutes)
• Output Type: Transistor (all substitutes)
• Mounting Type: Surface Mount (all substitutes)
• Current Transfer Ratio range: 50% minimum @ 5mA (all substitutes)

Allowable Variation Parameters:

• Current Transfer Ratio (Max): 150% to 600% (substitutes vary)
• Operating Temperature: -55°C ~ 100°C to -40°C ~ 110°C (substitutes vary)
• Output Voltage and Current: 35-40V maximum output, 50-80mA output current
• Vce Saturation: 200-300mV maximum
• Forward Voltage: 1.1V to 1.4V typical

All listed substitutes maintain the core isolation voltage, single-channel configuration, and transistor output characteristics required for functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

PS2701-1-M-A (Renesas Electronics Corporation): This direct equivalent is the primary substitute. It maintains identical electrical parameters to the original PS2701-1-F3-M-A and features active product status. Renesas is a primary manufacturer in the optoisolator market. Note that REACH status differs (Affected vs. Unaffected); verify REACH compliance requirements for your application.

FODM2701 and FODM2701R2 (onsemi): These parts are functionally equivalent with higher current transfer ratio maximums (300% vs. 150%). Both are active products available in high inventory. Packaging differences exist: FODM2701 is supplied in Tube format, while FODM2701R2 uses Cut Tape packaging. Both maintain compatibility with the original part's electrical specifications. onsemi is an established supplier of optoisolator components.

LTV-357T (Lite-On Inc.): This substitute offers enhanced specifications with a higher maximum current transfer ratio (600%), lower Vce saturation (200mV), and an extended temperature range (-55°C ~ 110°C). Output current rating is reduced to 50mA compared to the original 80mA. This part is active and widely available. Select this option if the lower current rating is acceptable and enhanced transfer ratio performance is advantageous.

All substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity, supporting the same handling and compliance requirements as the original component.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PS2701-1-F3-M-A with PS2701-1-M-A? A: Yes. PS2701-1-M-A is a direct substitute with identical electrical specifications. The primary difference is manufacturing source (Renesas vs. CEL) and product status (Active vs. Discontinued).

Q: What are the differences between onsemi FODM2701 and FODM2701R2? A: Both parts are electrically identical. FODM2701 is supplied in Tube packaging, while FODM2701R2 uses Cut Tape & Digi-Reel® packaging. Select based on your procurement and assembly requirements.

Q: Is LTV-357T compatible with my design if I need 80mA output current? A: LTV-357T has a maximum output current rating of 50mA, compared to 80mA for the original part. Verify that your design does not require the full 80mA output current before selecting this substitute.

Q: Do all substitutes support the same isolation voltage? A: Yes. All substitute parts maintain 3750Vrms isolation voltage, matching the original PS2701-1-F3-M-A specification.

Q: Are there temperature range differences I should consider? A: The onsemi parts (FODM2701, FODM2701R2) support -40°C ~ 110°C, compared to the original -55°C ~ 100°C. LTV-357T supports -55°C ~ 110°C. Verify your application's minimum operating temperature requirement before selecting a substitute.

Q: What is the difference in Current Transfer Ratio specifications? A: The original part specifies 50-150% @ 5mA. Substitutes offer identical or higher maximums (150-600%). Higher current transfer ratio improves device performance and switching characteristics; it does not negatively impact compatibility.

Q: Do package formats differ between substitutes? A: All parts use 4-SMD Gull Wing packages suitable for surface mount assembly. Packaging supplier formats (Strip, Tube, Cut Tape, Digi-Reel) differ for distribution purposes but do not affect circuit compatibility.

Q: Which substitute should I choose for new designs? A: For new designs, PS2701-1-M-A (Renesas) is the direct equivalent with active status. FODM2701 or FODM2701R2 (onsemi) offer higher current transfer ratio performance. LTV-357T (Lite-On) is suitable if the 50mA output current rating is acceptable and extended temperature range is needed.