NP1500SCMCT3G Equivalent & Substitute Parts

Part Overview

The NP1500SCMCT3G is a 140V off-state, 400A peak pulse (8/20µs) TVS thyristor manufactured by onsemi in DO-214AA (SMB) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

NP1500SCMCT3G

onsemiIn Stock: 902NP1500SCMCT3G Datasheet

Current PartRFQ

P1500SCLRP

Littelfuse Inc.In Stock: 1337P1500SCLRP Datasheet

DirectRFQ

TB1500M-13-F

Diodes IncorporatedIn Stock: 4382TB1500M-13-F Datasheet

DirectRFQ

P1500SCMCLRP

Littelfuse Inc.In Stock: 1039P1500SCMCLRP Datasheet

SimilarRFQ

SMP100LC-140

STMicroelectronicsIn Stock: 4249SMP100LC-140 Datasheet

SimilarRFQ

SMP100MC-140

STMicroelectronicsIn Stock: 2372SMP100MC-140 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Voltage - Off State: 140V (exact match required)
• Voltage - Breakover: 180V (exact match required)
• Current - Hold (Ih): 150mA (exact match required)
• Number of Elements: 1 (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)

Substitute parts are grouped into two categories:

Direct Substitutes: Parts meeting all critical parameters with identical or superior current handling specifications (Current - Peak Pulse 8/20µs ≥ 400A).

Similar Substitutes: Parts meeting all critical parameters with reduced current handling specifications (Current - Peak Pulse 8/20µs < 400A) or minor variations in on-state voltage or capacitance.

Parameter Comparison

Engineering Selection Recommendations

P1500SCLRP (Littelfuse Inc.) is the primary direct substitute. It maintains identical electrical specifications for voltage and current parameters while offering active product status and ROHS3 compliance. Capacitance is higher at 95pF compared to the original 33pF.

P1500SCMCLRP (Littelfuse Inc.) is a secondary direct substitute with identical current specifications and active product status. On-state voltage is 5V versus the original 4V, and capacitance is 55pF.

SMP100LC-140 (STMicroelectronics) is a similar substitute with identical current specifications and active product status. Breakover voltage is 175V versus the original 180V, and capacitance is 65pF.

TB1500M-13-F (Diodes Incorporated) is a similar substitute with reduced peak pulse current (250A versus 400A) and active product status. This part is suitable only for applications where the lower current rating is acceptable.

SMP100MC-140 (STMicroelectronics) is a similar substitute with reduced peak pulse current (300A versus 400A) and active product status. This part is suitable only for applications where the lower current rating is acceptable.

All substitute parts maintain the same package type (DO-214AA, SMB), mounting type (Surface Mount), hold current (150mA), and moisture sensitivity level (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

Q: Can P1500SCLRP replace NP1500SCMCT3G in all applications?

A: P1500SCLRP meets all critical electrical parameters and maintains identical current specifications. The higher capacitance (95pF versus 33pF) may affect circuit timing in sensitive applications and should be evaluated against circuit requirements.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes maintain the 400A peak pulse current specification. Similar substitutes either reduce peak pulse current (TB1500M-13-F at 250A, SMP100MC-140 at 300A) or have minor variations in breakover voltage (STMicroelectronics parts at 175V versus 180V). Selection depends on application current requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original NP1500SCMCT3G does not specify RoHS status.

Q: Does capacitance variation affect substitution?

A: Capacitance values range from 33pF (original) to 95pF (P1500SCLRP). Higher capacitance may impact high-frequency circuit performance and should be verified against circuit design specifications.

Q: Can I use TB1500M-13-F or SMP100MC-140 if my application requires 400A peak pulse current?

A: No. TB1500M-13-F is rated for 250A and SMP100MC-140 is rated for 300A peak pulse current. These parts are suitable only for applications with lower current requirements.

Q: What is the packaging difference between substitute parts?

A: All substitute parts use DO-214AA (SMB) surface mount package. Packaging options vary: P1500SCLRP and P1500SCMCLRP are supplied in Tape & Reel (TR), TB1500M-13-F in Tape & Reel (TR), SMP100LC-140 in Cut Tape (CT) & Digi-Reel®, and SMP100MC-140 in Tape & Reel (TR).

Q: Which substitute offers the best inventory availability?

A: SMP100LC-140 has the highest inventory at 4,300 pieces. TB1500M-13-F has 4,300 pieces. P1500SCLRP has 1,305 pieces. P1500SCMCLRP has 956 pieces. SMP100MC-140 has 2,300 pieces.