PS2801-4-F4-A Equivalent & Substitute Parts

Part Overview

The PS2801-4-F4-A is a 4-channel optoisolator with transistor output and 2500Vrms isolation voltage, manufactured by CEL in a 16-SSOP surface mount package. This part is currently obsolete, necessitating identification of equivalent alternatives for ongoing design support and component procurement. Substitute parts are available from active product lines within equivalent electrical and mechanical parameters.

Substiute Parts

PS2801-4-F4-A

CELIn Stock: 807PS2801-4-F4-A Datasheet

Current PartRFQ

PS2801-4-A

Renesas Electronics CorporationIn Stock: 15550PS2801-4-A Datasheet

DirectRFQ

PS2801-4-F3-A

Renesas Electronics CorporationIn Stock: 27710PS2801-4-F3-A Datasheet

DirectRFQ

TCMT1106

Vishay Semiconductor Opto DivisionIn Stock: 4173TCMT1106 Datasheet

SimilarRFQ

TLP291-4(GB,E)

Toshiba Semiconductor and StorageIn Stock: 1000131TLP291-4(GB,E) Datasheet

SimilarRFQ

TLP291-4(GB-TP,E)

Toshiba Semiconductor and StorageIn Stock: 3237TLP291-4(GB-TP,E) Datasheet

SimilarRFQ

TLP291-4(TP,E)

Toshiba Semiconductor and StorageIn Stock: 3369TLP291-4(TP,E) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitutes for the PS2801-4-F4-A are classified into two categories based on electrical parameter compatibility:

Direct Equivalents: Parts maintaining all critical electrical specifications within matching ranges, including 4-channel configuration, 2500Vrms isolation voltage, and transistor output characteristics. The allowed electrical parameters for direct substitution are: isolation voltage of 2500Vrms, 4-channel configuration, transistor output type, output voltage maximum of 80V, output current per channel of 50mA, Vce saturation maximum of 300mV, and operating temperature range supporting -55°C to 100°C minimum coverage.

Similar Alternatives: Parts with acceptable variations in secondary parameters while maintaining functional compatibility within the optoisolator category. These include parts with different channel counts or slightly higher isolation voltages, provided all critical electrical requirements can be met within the application's operating constraints.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents - Renesas PS2801-4-A and PS2801-4-F3-A: These parts maintain identical electrical specifications to the PS2801-4-F4-A across all key parameters. Both are classified as "Not For New Designs" but remain functionally equivalent. PS2801-4-F3-A offers superior REACH compliance (REACH Unaffected) compared to PS2801-4-A (REACH Affected). Both carry ROHS3 compliance. Selection between these two depends on regulatory requirements and packaging format availability (PS2801-4-A supplied in Strip; PS2801-4-F3-A in Cut Tape with Digi-Reel).

Active Alternative - Toshiba TLP291-4 Series: The TLP291-4(GB,E), TLP291-4(GB-TP,E), and TLP291-4(TP,E) represent active product line alternatives with matching 4-channel configuration and 2500Vrms isolation. These parts exhibit faster switching performance (3µs turn-on/off versus 6µs/5µs), superior extended temperature range (-55°C to 110°C versus -55°C to 100°C), and REACH Unaffected status. The primary consideration is slightly elevated Vce saturation (400mV maximum versus 300mV), which impacts output impedance. TLP291-4(TP,E) has a minimum current transfer ratio of 50% @ 5mA, lower than the PS2801-4-F4-A specification of 80% minimum. TLP291-4(GB,E) and TLP291-4(GB-TP,E) meet the 80% minimum threshold more closely.

Single-Channel Alternative - Vishay TCMT1106: This part is unsuitable as a direct substitute due to single-channel configuration. It provides higher isolation voltage (3750Vrms), but the application must be redesigned to accommodate four separate single-channel devices to replace one 4-channel device. Higher output voltage threshold (70V versus 80V) further restricts applicability.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PS2801-4-F4-A with PS2801-4-A or PS2801-4-F3-A? A: Yes. Both Renesas parts maintain identical electrical specifications including 4-channel configuration, 2500Vrms isolation voltage, 80% minimum current transfer ratio, 300mV maximum Vce saturation, and 50mA per-channel output current. Packaging differences (Strip versus Cut Tape) do not affect electrical compatibility. PS2801-4-F3-A is preferred for new procurement due to REACH Unaffected certification.

Q: What are the key differences between PS2801-4-F4-A and TLP291-4 alternatives? A: Electrical equivalence exists across isolation voltage, channel count, and output specifications. Timing characteristics differ: TLP291-4 parts offer faster switching (3µs turn-on/off versus 6µs/5µs). Vce saturation tolerances diverge (TLP291-4 maximum 400mV versus PS2801-4-F4-A maximum 300mV). Extended temperature operation to 110°C on TLP291-4 exceeds the original specification to 100°C. TLP291-4(TP,E) minimum current transfer ratio of 50% @ 5mA is below the 80% PS2801-4-F4-A specification; TLP291-4(GB,E) and TLP291-4(GB-TP,E) variants specify 100% minimum.

Q: Why is the Vishay TCMT1106 not recommended as a substitute? A: TCMT1106 is a single-channel optoisolator, requiring four separate devices to replace one PS2801-4-F4-A. This necessitates circuit redesign and increased board space. Maximum output voltage of 70V is also lower than the 80V requirement, restricting high-voltage applications.

Q: How does package width variation affect substitution compatibility? A: The PS2801-4-F4-A package width is 4.40mm (0.173"). TLP291-4 alternatives specify 4.55mm (0.179") width. This 0.15mm difference may require PCB layout adjustment if footprints are tightly constrained. Verify available board routing space and component placement tolerances before proceeding with substitution.

Q: What compliance and regulatory factors should guide part selection? A: PS2801-4-F3-A is REACH Unaffected and ROHS3 Compliant, representing the optimal compliance profile for new procurement. Both TLP291-4 alternatives and TCMT1106 are REACH Unaffected. If REACH Affected status is acceptable, PS2801-4-A provides equivalent performance to the original PS2801-4-F4-A. All candidates carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: What packaging format options are available across substitute parts? A: PS2801-4-A is supplied in Strip packaging. PS2801-4-F3-A, TLP291-4(GB-TP,E), and TLP291-4(TP,E) are available in Cut Tape with Digi-Reel. TLP291-4(GB,E) is supplied in Tube. Selection depends on procurement volume requirements and automated assembly equipment compatibility.