P2600SCMC Equivalent & Substitute Parts

Part Overview

The P2600SCMC is a 220V off-state thyristor TVS (Transient Voltage Suppressor) from Littelfuse's SIDACtor® series, designed for surface mount applications in DO-214AA (SMB) packaging. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The part delivers 400A peak pulse current (8/20µs) with a 300V breakover voltage, making it suitable for transient protection in 220V AC circuits.

Substiute Parts

P2600SCMC

LittelfuseIn Stock: 937P2600SCMC Datasheet

Current PartRFQ

P2600SCMCLRP

Littelfuse Inc.In Stock: 1485P2600SCMCLRP 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 eligibility for the P2600SCMC is determined by the following critical parameters:

• Voltage - Off State: Must be 220V (primary protection threshold)
• Package / Case: Must be DO-214AA, SMB (mechanical and thermal compatibility)
• Mounting Type: Must be Surface Mount (PCB assembly compatibility)
• Number of Elements: Must be 1 (functional equivalence)
• Current - Peak Pulse (8/20µs): Acceptable range 150A to 400A (application-dependent tolerance)
• Current - Hold (Ih): Must be 150 mA (holding current specification)
• Voltage - Breakover: Acceptable range 290V to 300V (transient suppression window)

Three active substitute parts meet these criteria:

1. P2600SCMCLRP (Littelfuse) - Direct manufacturer equivalent with identical electrical specifications and active product status
2. SMTPA220 (STMicroelectronics) - Reduced peak pulse current (150A vs 400A) with lower capacitance (25pF vs 45pF)
3. TISP4290T3BJR-S (Bourns Inc.) - Intermediate peak pulse current (250A vs 400A) with higher capacitance (52pF vs 45pF)

Parameter Comparison

Engineering Selection Recommendations

P2600SCMCLRP is the primary substitute for the obsolete P2600SCMC. This part is manufactured by Littelfuse and maintains identical electrical specifications (400A peak pulse current, 300V breakover voltage, 45pF capacitance). The P2600SCMCLRP carries active product status and ROHS3 compliance, making it suitable for new designs and production environments with regulatory requirements.

SMTPA220 (STMicroelectronics) is applicable where peak pulse current requirements do not exceed 150A. This part reduces capacitance to 25pF and breakover voltage to 293V. Selection of SMTPA220 requires verification that the application's transient energy profile is compatible with the reduced current rating.

TISP4290T3BJR-S (Bourns Inc.) provides an intermediate current rating of 250A with breakover voltage of 290V and capacitance of 52pF. This part is suitable for applications requiring current handling between the SMTPA220 and P2600SCMCLRP specifications. REACH compliance status is affected for this part.

All three substitutes maintain the DO-214AA (SMB) package, surface mount configuration, and 150 mA holding current specification required for mechanical and functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can P2600SCMCLRP be used as a direct replacement for P2600SCMC?

A: Yes. P2600SCMCLRP is electrically and mechanically identical to P2600SCMC, with the same voltage ratings (220V off-state, 300V breakover), current specifications (400A peak pulse 8/20µs), and DO-214AA packaging. The primary difference is product status (active vs. obsolete) and regulatory compliance (ROHS3 compliant).

Q: What is the difference between the three substitute parts?

A: The three substitutes differ in peak pulse current handling and capacitance. P2600SCMCLRP matches the original 400A specification. SMTPA220 reduces this to 150A with lower capacitance (25pF). TISP4290T3BJR-S provides 250A with higher capacitance (52pF). All maintain 220V off-state voltage and 150 mA holding current.

Q: Are all substitutes RoHS compliant?

A: P2600SCMCLRP and SMTPA220 are ROHS3 compliant. TISP4290T3BJR-S is ROHS3 compliant but has affected REACH status. The original P2600SCMC is RoHS non-compliant.

Q: Does package compatibility affect substitution?

A: No. All substitute parts use the same DO-214AA (SMB) surface mount package as the P2600SCMC, ensuring PCB footprint and assembly process compatibility.

Q: Which substitute should be selected for new designs?

A: Selection depends on application current requirements. For designs requiring 400A peak pulse current, use P2600SCMCLRP. For applications with lower transient energy, SMTPA220 (150A) or TISP4290T3BJR-S (250A) may be appropriate. Verify that the selected part's current and voltage specifications match the circuit's transient protection requirements.