P1500SCMCLRP Equivalent & Substitute Parts

Part Overview

The P1500SCMCLRP is a 140V off-state TVS thyristor manufactured by Littelfuse Inc., classified as a SIDACtor® series transient voltage suppressor. This surface-mount component in DO-214AA (SMB) packaging is designed for transient voltage protection applications requiring 400A 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

P1500SCMCLRP

Littelfuse Inc.In Stock: 1039P1500SCMCLRP Datasheet

Current PartRFQ

SMP100LC-140

STMicroelectronicsIn Stock: 4249SMP100LC-140 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1500SCMCLRP with the SMP100LC-140 is based on equivalence in the following critical parameters:

• Voltage - Off State: 140V (identical)
• Current - Peak Pulse (8/20µs): 400A (identical)
• Current - Peak Pulse (10/1000µs): 100A (identical)
• Current - Hold (Ih): 150mA (identical)
• Package / Case: DO-214AA, SMB (identical)
• Mounting Type: Surface Mount (identical)
• Number of Elements: 1 (identical)

Both parts operate within the same voltage and current specifications required for transient voltage suppression in DO-214AA surface-mount applications. The SMP100LC-140 is manufactured by STMicroelectronics as part of the SMP/TRISIL™ series and maintains functional equivalence for circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both the P1500SCMCLRP and SMP100LC-140 are active production components with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use. Selection between these parts is determined by availability, supply chain requirements, and packaging format preference (Tape & Reel versus Cut Tape & Digi-Reel®). The critical electrical parameters—off-state voltage, peak pulse current ratings, and holding current—are identical across both components, ensuring functional equivalence in transient voltage suppression circuits. The minor differences in breakover voltage (180V versus 175V) and capacitance (55pF versus 65pF) do not affect substitution eligibility when the primary design requirement is 140V off-state protection with 400A peak pulse capability.

Frequently Asked Questions (FAQ)

Q: Can the SMP100LC-140 directly replace the P1500SCMCLRP in existing designs?

A: Yes. Both components share identical off-state voltage (140V), peak pulse current ratings (400A at 8/20µs and 100A at 10/1000µs), holding current (150mA), and DO-214AA SMB package specifications. The components are functionally equivalent for transient voltage suppression applications.

Q: What is the significance of the breakover voltage difference (180V vs. 175V)?

A: The breakover voltage indicates the threshold at which the thyristor transitions to its on-state. The P1500SCMCLRP specifies 180V while the SMP100LC-140 specifies 175V. Both values fall within acceptable ranges for 140V off-state protection circuits. Circuit design must account for the specific breakover voltage of the selected component.

Q: Are there packaging differences between these parts?

A: Yes. The P1500SCMCLRP is supplied in Tape & Reel (TR) format, while the SMP100LC-140 is available in Cut Tape (CT) and Digi-Reel® formats. Both use identical DO-214AA SMB surface-mount packages and are compatible with standard pick-and-place assembly equipment.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the P1500SCMCLRP and SMP100LC-140 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component use in regulated markets.

Q: What is the capacitance difference, and does it affect substitution?

A: The P1500SCMCLRP has 55pF capacitance while the SMP100LC-140 has 65pF. This 10pF difference may affect high-frequency circuit behavior. Circuit designers must evaluate whether the capacitance variance impacts signal integrity or filtering performance in their specific application.