NP2100SCT3G Equivalent & Substitute Parts

Part Overview

The NP2100SCT3G is a 180V off-state thyristor-based transient voltage suppressor (TVS) manufactured by onsemi in DO-214AA (SMB) surface mount packaging. This component is designed for transient overvoltage protection with a 100A peak pulse current rating (10/1000µs) and 240V breakover voltage. The part is currently obsolete, making equivalent substitutes necessary for ongoing design requirements and component sourcing.

Substiute Parts

NP2100SCT3G

onsemiIn Stock: 790NP2100SCT3G Datasheet

Current PartRFQ

P2100SCLRP

Littelfuse Inc.In Stock: 70195P2100SCLRP Datasheet

DirectRFQ

P2100SCMCLRP

Littelfuse Inc.In Stock: 912P2100SCMCLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the NP2100SCT3G is determined by strict equivalence in the following critical parameters:

• Voltage - Off State: 180V (exact match required)
• Voltage - Breakover: 240V (exact match required)
• Voltage - On State: 4V (exact match required)
• Current - Hold (Ih): 150mA (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Number of Elements: 1 (exact match required)

The substitute parts P2100SCLRP and P2100SCMCLRP from Littelfuse Inc. meet all critical electrical and mechanical parameters. Both are active products with enhanced current ratings and improved availability compared to the obsolete NP2100SCT3G.

Parameter Comparison

Engineering Selection Recommendations

Both P2100SCLRP and P2100SCMCLRP are direct functional equivalents to the NP2100SCT3G. Selection between these two Littelfuse alternatives is based on the following factors:

P2100SCLRP is the primary substitute, offering 97pF capacitance (closest to the original 97pF specification) and superior inventory availability (70,100 units in stock). This part is ROHS3 compliant and carries the SIDACtor® series designation.

P2100SCMCLRP provides identical electrical performance with reduced capacitance (50pF), which may be advantageous in applications sensitive to parasitic capacitance effects. Inventory is more limited (822 units in stock). This part is also ROHS3 compliant and carries the SIDACtor® series designation.

Both substitute parts are active products with REACH compliance and EAR99 export classification, matching the regulatory status of the original component.

Frequently Asked Questions (FAQ)

Q: Can P2100SCLRP or P2100SCMCLRP be used as direct replacements for NP2100SCT3G?

A: Yes. Both parts meet all critical electrical parameters (180V off-state voltage, 240V breakover voltage, 4V on-state voltage, 150mA hold current) and are packaged identically in DO-214AA (SMB) surface mount format. They are pin-compatible and functionally equivalent.

Q: What is the difference between P2100SCLRP and P2100SCMCLRP?

A: The primary difference is capacitance: P2100SCLRP has 90pF while P2100SCMCLRP has 50pF. Both maintain identical voltage and current ratings. The choice depends on circuit requirements for parasitic capacitance. P2100SCLRP offers better inventory availability.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both P2100SCLRP and P2100SCMCLRP are ROHS3 compliant, exceeding the regulatory requirements of the obsolete NP2100SCT3G.

Q: What is the peak pulse current rating difference?

A: The NP2100SCT3G is rated for 100A peak pulse current at 10/1000µs. Both substitute parts maintain this 100A rating at 10/1000µs while also supporting 400A at 8/20µs, providing enhanced transient protection capability.

Q: Are there packaging or mounting differences?

A: No. All three parts use identical DO-214AA (SMB) surface mount packaging and are mounted using the same PCB footprint and reflow soldering process.