P2600SALRP Equivalent & Substitute Parts

Part Overview

The P2600SALRP is a 220V off-state transient voltage suppressor thyristor manufactured by Littelfuse Inc., part of the SIDACtor® series. This surface-mount component in DO-214AA (SMB) package is designed for transient voltage suppression applications requiring 150 A peak pulse current capability. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

P2600SALRP

Littelfuse Inc.In Stock: 13427P2600SALRP Datasheet

Current PartRFQ

SMTPA220

STMicroelectronicsIn Stock: 3747SMTPA220 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2600SALRP is permissible when the following critical parameters are maintained within specification:

• Voltage - Off State: Must be 220V to ensure proper circuit protection threshold
• Current - Peak Pulse (8/20µs): Must be 150A to handle transient surge events
• Package / Case: Must be DO-214AA (SMB) for mechanical and thermal compatibility
• Mounting Type: Must be Surface Mount for PCB assembly compatibility
• Number of Elements: Must be 1 for functional equivalence

The SMTPA220 from STMicroelectronics meets all critical substitution criteria. Minor variations in breakover voltage (293V vs. 300V), on-state voltage, peak pulse current at 10/1000µs rating, and capacitance do not prevent functional substitution when the primary protection parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both the P2600SALRP and SMTPA220 are active production components with equivalent RoHS3 and REACH compliance status. Selection between these parts should be based on:

• Availability: P2600SALRP has 13,350 units in stock; SMTPA220 has 3,700 units in stock
• Regulatory Compliance: Both parts meet ROHS3 and REACH requirements with EAR99 export classification
• Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, suitable for standard storage and handling
• Series Compatibility: P2600SALRP belongs to the SIDACtor® series; SMTPA220 belongs to the SMP/TRISIL™ series

The SMTPA220 is the manufacturer-recommended substitute when P2600SALRP availability is constrained.

Frequently Asked Questions (FAQ)

Q: Can SMTPA220 be used as a direct replacement for P2600SALRP in existing designs?

A: Yes. Both parts share identical off-state voltage (220V), peak pulse current rating (150A at 8/20µs), hold current (150mA), and DO-214AA SMB package specifications. The 7V difference in breakover voltage (293V vs. 300V) and 10pF difference in capacitance are within acceptable tolerance for transient voltage suppression applications.

Q: What is the significance of the different breakover voltages?

A: The breakover voltage determines the threshold at which the thyristor transitions from off-state to on-state. The P2600SALRP breakover of 300V and SMTPA220 breakover of 293V both provide adequate protection margin for 220V off-state operation. The 7V difference reflects different semiconductor design approaches between manufacturers.

Q: Are there any package compatibility concerns?

A: No. Both parts use the DO-214AA (SMB) surface-mount package with identical mechanical dimensions and thermal characteristics. PCB footprints and reflow soldering profiles are interchangeable.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both P2600SALRP and SMTPA220 are RoHS3 compliant, REACH unaffected, and carry EAR99 export classification. Both have MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the difference in capacitance between the two parts?

A: The P2600SALRP has 35pF capacitance while SMTPA220 has 25pF. This 10pF difference may affect high-frequency circuit behavior in sensitive applications but does not prevent functional substitution for standard transient voltage suppression.