P2600SA Equivalent & Substitute Parts

Part Overview

The P2600SA is a 220V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series, housed in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement.

Substiute Parts

P2600SA

Littelfuse Inc.In Stock: 10482P2600SA Datasheet

Current PartRFQ

P2600SALRP

Littelfuse Inc.In Stock: 13427P2600SALRP Datasheet

DirectRFQ

SMTPA220

STMicroelectronicsIn Stock: 3747SMTPA220 Datasheet

MFR RecommendedRFQ

SMTPA240

STMicroelectronicsIn Stock: 52771SMTPA240 Datasheet

MFR RecommendedRFQ

TISP4290T3BJR-S

Bourns Inc.In Stock: 933TISP4290T3BJR-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P2600SA is determined by the following critical parameters:

• Voltage - Off State: 220V (primary voltage rating)
• Voltage - Breakover: 300V nominal range (290V–320V acceptable)
• Current - Peak Pulse (8/20µs): 150A minimum
• Package / Case: DO-214AA, SMB (mechanical and electrical compatibility)
• Mounting Type: Surface Mount
• Number of Elements: 1

Parts meeting these criteria are classified as direct equivalents. Parts with higher current ratings or different voltage breakover points are classified as functional substitutes with noted parameter deviations.

Parameter Comparison

Engineering Selection Recommendations

P2600SALRP is the direct equivalent replacement for P2600SA. Both parts are manufactured by Littelfuse Inc., share identical electrical specifications (220V off-state, 150A peak pulse), and use the same DO-214AA package. P2600SALRP is active and ROHS3 compliant, addressing the obsolescence and compliance limitations of the original part. Capacitance variance (35pF vs. 30pF) is within acceptable tolerance for TVS thyristor applications.

SMTPA220 (STMicroelectronics) is a qualified manufacturer alternative with equivalent 220V off-state and 150A peak pulse ratings. Breakover voltage (293V) and on-state voltage are within acceptable operating ranges. This part is active and ROHS3 compliant. Capacitance is lower (25pF), which may affect transient response characteristics in specific circuit topologies.

SMTPA240 (STMicroelectronics) is a functional substitute for applications requiring higher voltage margin. Off-state voltage is 240V with 320V breakover, suitable for circuits with elevated supply voltage tolerance requirements. Peak pulse current (150A) and hold current (150mA) match the original specification. This part is active and ROHS3 compliant.

TISP4290T3BJR-S (Bourns Inc.) is a higher-current alternative with 250A peak pulse (8/20µs) and 80A peak pulse (10/1000µs) ratings. Off-state voltage remains 220V. This part is suitable for applications requiring enhanced transient suppression capability. Higher capacitance (52pF) may introduce additional circuit loading. REACH status is affected; verify compliance requirements for your application.

Frequently Asked Questions (FAQ)

Q: Can P2600SALRP directly replace P2600SA without circuit modification?

A: Yes. P2600SALRP is a direct equivalent with identical electrical specifications and package. The 5pF capacitance increase (35pF vs. 30pF) does not require circuit redesign for standard TVS thyristor applications.

Q: What is the primary reason to transition from P2600SA to an active part?

A: P2600SA is obsolete. P2600SALRP, SMTPA220, and SMTPA240 are active parts with confirmed manufacturing availability and ROHS3 compliance, ensuring long-term supply chain stability and regulatory compliance.

Q: Can SMTPA240 be used in a circuit designed for 220V off-state operation?

A: SMTPA240 has a 240V off-state rating and is intended for higher-voltage applications. Use only if your circuit topology and supply voltage accommodate the higher voltage rating. Verify breakover voltage (320V) compatibility with your transient suppression requirements.

Q: What is the impact of capacitance differences between substitute parts?

A: Capacitance affects transient response speed and circuit loading. SMTPA220 and SMTPA240 (25pF) have lower capacitance than P2600SA (30pF), potentially improving response time. TISP4290T3BJR-S (52pF) has higher capacitance, which may increase circuit loading in high-frequency applications. Verify compatibility through circuit simulation or testing if transient response is critical.

Q: Are all substitute parts ROHS3 compliant?

A: P2600SALRP, SMTPA220, and SMTPA240 are ROHS3 compliant. TISP4290T3BJR-S is ROHS3 compliant but has affected REACH status. Verify REACH compliance requirements for your specific application and region.

Q: What is the difference between P2600SA and P2600SALRP packaging?

A: Both use DO-214AA (SMB) surface mount packages. P2600SALRP is supplied in Cut Tape (CT) & Digi-Reel® format, while P2600SA packaging is not specified. Verify packaging format compatibility with your assembly process.