P2600SARP Equivalent & Substitute Parts

Part Overview

The P2600SARP is a 220V off-state thyristor TVS (Transient Voltage Suppressor) from Littelfuse Inc., rated for 150A peak pulse current in the DO-214AA (SMB) package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The part belongs to the SIDACtor® series of transient voltage suppression devices.

Substiute Parts

P2600SARP

Littelfuse Inc.In Stock: 2405P2600SARP Datasheet

Current PartRFQ

P2600SALRP

Littelfuse Inc.In Stock: 13427P2600SALRP Datasheet

DirectRFQ

SMTPA220

STMicroelectronicsIn Stock: 3747SMTPA220 Datasheet

MFR RecommendedRFQ

TISP4290T3BJR-S

Bourns Inc.In Stock: 933TISP4290T3BJR-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS thyristor devices is determined by electrical parameter compatibility within defined tolerances and mechanical package compatibility. The following criteria establish valid substitution:

Critical Parameters for Substitution:

• Voltage - Off State: Must match 220V
• Voltage - Breakover: Acceptable range 290V–300V
• Current - Peak Pulse (8/20µs): Minimum 150A (equal or higher acceptable)
• Current - Hold (Ih): Must match 150mA
• Package / Case: Must be DO-214AA, SMB
• Number of Elements: Must be 1

Identified Substitute Parts:

1. P2600SALRP (Littelfuse Inc.) – Direct manufacturer equivalent with identical electrical specifications and active product status
2. SMTPA220 (STMicroelectronics) – Manufacturer-recommended substitute with equivalent performance parameters
3. TISP4290T3BJR-S (Bourns Inc.) – Manufacturer-recommended substitute with higher current rating capability

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: P2600SALRP

P2600SALRP is the direct equivalent from Littelfuse Inc. with identical electrical specifications to the obsolete P2600SARP. This part maintains all critical parameters including breakover voltage (300V), off-state voltage (220V), peak pulse current (150A at 8/20µs), and hold current (150mA). The part is active in production with ROHS3 compliance and unlimited moisture sensitivity rating. This is the preferred substitution path for direct replacement.

Secondary Recommendation: SMTPA220

SMTPA220 from STMicroelectronics is a manufacturer-recommended substitute offering equivalent performance with minor parameter variations. Breakover voltage is 293V (within acceptable range), off-state voltage matches at 220V, and peak pulse current matches at 150A (8/20µs). The part is active, ROHS3 compliant, and REACH unaffected. Capacitance is lower at 25pF compared to 35pF in the original part.

Tertiary Recommendation: TISP4290T3BJR-S

TISP4290T3BJR-S from Bourns Inc. is a manufacturer-recommended substitute with higher current capability (250A peak pulse at 8/20µs). Breakover voltage is 290V (within acceptable range), off-state voltage matches at 220V, and hold current matches at 150mA. This part is suitable for applications requiring higher transient current handling. The part is active and ROHS3 compliant. Capacitance is higher at 52pF.

Frequently Asked Questions (FAQ)

Q: Can P2600SALRP be used as a direct replacement for P2600SARP?

A: Yes. P2600SALRP is the direct equivalent with identical electrical specifications and the same DO-214AA package. The primary difference is product status: P2600SALRP is active while P2600SARP is obsolete.

Q: What are the key differences between SMTPA220 and the original P2600SARP?

A: SMTPA220 has a slightly lower breakover voltage (293V vs. 300V) and lower capacitance (25pF vs. 35pF). All other critical parameters—off-state voltage, peak pulse current, hold current, and package—are equivalent or compatible.

Q: When should TISP4290T3BJR-S be selected over other substitutes?

A: TISP4290T3BJR-S should be selected when the application requires higher transient current handling capability. It is rated for 250A peak pulse current (8/20µs) compared to 150A in the original part, and 80A (10/1000µs) compared to 45A.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the DO-214AA (SMB) package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: What is the impact of capacitance differences between substitutes?

A: Capacitance variations (25pF to 52pF) may affect circuit response time in high-frequency transient suppression applications. Circuit simulation or testing is appropriate to confirm performance in specific applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. P2600SALRP, SMTPA220, and TISP4290T3BJR-S are all ROHS3 compliant, whereas the original P2600SARP is non-compliant.