NP2100SCMCT3G Equivalent & Substitute Parts

Part Overview

The NP2100SCMCT3G is a 180V off-state, 400A peak pulse (8/20µs) transient voltage suppressor thyristor manufactured by onsemi in DO-214AA (SMB) surface mount package. This component is classified as obsolete, with 957 units currently in stock. Due to its obsolete status, identifying equivalent and substitute parts from active manufacturers is essential for design continuity and long-term supply chain reliability.

Substiute Parts

NP2100SCMCT3G

onsemiIn Stock: 1040NP2100SCMCT3G Datasheet

Current PartRFQ

P2100SCLRP

Littelfuse Inc.In Stock: 70195P2100SCLRP Datasheet

DirectRFQ

P2100SCMCLRP

Littelfuse Inc.In Stock: 912P2100SCMCLRP Datasheet

DirectRFQ

P2000SALRP

Littelfuse Inc.In Stock: 3952P2000SALRP Datasheet

SimilarRFQ

P2000SBLRP

Littelfuse Inc.In Stock: 3001P2000SBLRP Datasheet

SimilarRFQ

P2000SCLRP

Littelfuse Inc.In Stock: 2004P2000SCLRP Datasheet

SimilarRFQ

P2000SCMCLRP

Littelfuse Inc.In Stock: 1388P2000SCMCLRP Datasheet

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P2100SALRP

Littelfuse Inc.In Stock: 12721P2100SALRP Datasheet

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SMTBJ170A

Littelfuse Inc.In Stock: 1112SMTBJ170A Datasheet

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SMTPA180

STMicroelectronicsIn Stock: 3882SMTPA180 Datasheet

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TISP4240H3BJR-S

Bourns Inc.In Stock: 7077TISP4240H3BJR-S Datasheet

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TISP4C220H3BJR-S

Bourns Inc.In Stock: 26134TISP4C220H3BJR-S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NP2100SCMCT3G is determined by the following critical parameters:

Primary Matching Criteria:

• Voltage - Off State: 180V (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Current - Peak Pulse (8/20µs): 400A (exact match required for direct substitution)

Secondary Compatibility Parameters:

• Voltage - Breakover: 240V (tolerance range acceptable)
• Voltage - On State: 4V (tolerance range acceptable)
• Current - Hold (Ih): 150mA (tolerance range acceptable)

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting all primary matching criteria with identical electrical performance characteristics.

Similar Substitutes: Parts meeting primary package and voltage criteria but with variations in peak pulse current ratings or secondary electrical parameters. These require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Recommended Priority):

P2100SCLRP and P2100SCMCLRP (Littelfuse Inc., SIDACtor® series) are direct functional equivalents to the NP2100SCMCT3G. Both parts match all primary electrical parameters: 180V off-state voltage, 240V breakover voltage, 400A peak pulse current (8/20µs), and 150mA hold current. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. The primary difference is capacitance specification (90pF for P2100SCLRP, 50pF for P2100SCMCLRP). Selection between these two depends on circuit capacitance requirements.

Secondary Substitutes (Current-Rated Alternatives):

P2000SCLRP and P2000SCMCLRP (Littelfuse Inc., SIDACtor® series) provide 400A peak pulse current matching with a lower breakover voltage of 220V versus the original 240V. Hold current is specified at 120mA versus 150mA. These parts are active with ROHS3 compliance and represent viable alternatives where the lower breakover voltage is acceptable.

TISP4240H3BJR-S (Bourns Inc.) provides 300A peak pulse current with matching 180V off-state and 240V breakover voltages. This part is suitable for applications where 300A peak pulse current is sufficient. It is active and ROHS3 compliant.

Lower Current Alternatives:

P2100SALRP and P2000SALRP (Littelfuse Inc.) provide 150A peak pulse current. These are suitable only for applications with reduced current requirements. Both are active with ROHS3 compliance.

P2000SBLRP (Littelfuse Inc.) provides 250A peak pulse current as an intermediate option. Active status and ROHS3 compliance confirmed.

Cross-Manufacturer Option:

SMTPA180 (STMicroelectronics, TRISIL™ series) matches 180V off-state and 240V breakover voltages but is rated for 150A peak pulse current. This part is active and ROHS3 compliant, offering cross-manufacturer supply diversification.

Not Recommended:

SMTBJ170A (Littelfuse Inc.) has a lower off-state voltage of 170V and is RoHS non-compliant, making it unsuitable for direct replacement in applications requiring RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can P2100SCLRP directly replace NP2100SCMCT3G?

A: Yes. P2100SCLRP matches all primary electrical specifications: 180V off-state voltage, 240V breakover voltage, 4V on-state voltage, 400A peak pulse current (8/20µs), 100A peak pulse current (10/1000µs), and 150mA hold current. Both use DO-214AA (SMB) surface mount packaging. The part is active and ROHS3 compliant.

Q: What is the difference between P2100SCLRP and P2100SCMCLRP?

A: Both parts are electrical equivalents with identical voltage and current ratings. The difference is capacitance: P2100SCLRP is specified at 90pF while P2100SCMCLRP is specified at 50pF. Selection depends on circuit capacitance requirements.

Q: Can I use P2000SCLRP as a substitute?

A: P2000SCLRP is functionally compatible for 400A peak pulse current applications but has a lower breakover voltage of 220V compared to the original 240V. It also specifies 120mA hold current versus 150mA. Use only if the lower breakover voltage is acceptable for your application.

Q: Why is SMTBJ170A not recommended?

A: SMTBJ170A has a lower off-state voltage of 170V and is RoHS non-compliant. It does not meet the 180V off-state requirement and fails RoHS compliance criteria.

Q: Are all substitute parts available in the same packaging?

A: Yes. All listed substitute parts use DO-214AA (SMB) surface mount packaging, matching the original NP2100SCMCT3G package specification.

Q: What is the impact of different capacitance values in substitute parts?

A: Capacitance affects circuit behavior in high-frequency transient suppression applications. Lower capacitance (25pF to 50pF) provides faster response in sensitive circuits, while higher capacitance (90pF to 95pF) may be suitable for applications with less stringent frequency requirements. Verify capacitance compatibility with your circuit design.

Q: Which substitute offers the best supply availability?

A: P2100SCLRP (Littelfuse Inc.) has 70,100 units in stock, providing the highest inventory availability among direct substitutes. P2100SCMCLRP has 822 units available.

Q: Can I use TISP4240H3BJR-S if my application requires 300A peak pulse current?

A: Yes. TISP4240H3BJR-S is rated for 300A peak pulse current (8/20µs) with matching 180V off-state and 240V breakover voltages. It is suitable for applications where 300A peak pulse current is sufficient. The part is active and ROHS3 compliant.

Q: What compliance certifications should I verify for my application?

A: All recommended direct and secondary substitutes carry ROHS3 compliance. Verify REACH status and ECCN classification (all listed parts are EAR99) against your specific regulatory requirements. SMTBJ170A is RoHS non-compliant and should not be used in RoHS-regulated applications.