P1300SCMCLRP Equivalent & Substitute Parts

Part Overview

The P1300SCMCLRP is a 120V off-state TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This surface-mount component in DO-214AA (SMB) packaging is designed for transient voltage suppression applications requiring 400A peak pulse current capability at 8/20µs waveform. The part is active and in production with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

P1300SCMCLRP

Littelfuse Inc.In Stock: 1705P1300SCMCLRP Datasheet

Current PartRFQ

SMTPA120

STMicroelectronicsIn Stock: 10386SMTPA120 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for TVS thyristors in this category is determined by the following critical parameters:

• Voltage - Off State (120V nominal)
• Voltage - Breakover (160V nominal)
• Current - Hold (Ih) at 150 mA
• Package / Case (DO-214AA, SMB)
• Mounting Type (Surface Mount)
• RoHS3 Compliance status

The SMTPA120 from STMicroelectronics meets these core substitution criteria. Both parts share identical off-state voltage, breakover voltage, hold current, and package specifications. The primary difference is peak pulse current capability: the P1300SCMCLRP supports 400A at 8/20µs, while the SMTPA120 supports 150A at the same waveform. This difference must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the P1300SCMCLRP and SMTPA120 are active products with full RoHS3 compliance and REACH unaffected status. Selection between these parts must be based on application peak pulse current requirements. The P1300SCMCLRP is specified for 400A peak pulse current at 8/20µs, while the SMTPA120 is specified for 150A at the same waveform. Applications requiring the full 400A capability must use the P1300SCMCLRP. Applications with peak pulse current requirements at or below 150A may use either part, provided all other electrical and mechanical parameters are verified as acceptable for the specific circuit design.

Frequently Asked Questions (FAQ)

Q: Can SMTPA120 be used as a direct replacement for P1300SCMCLRP?

A: Direct replacement is possible only if the application peak pulse current requirement does not exceed 150A at 8/20µs waveform. Both parts share identical off-state voltage (120V), breakover voltage (160V), hold current (150mA), and DO-214AA SMB package specifications. The SMTPA120 has lower peak pulse current and capacitance ratings.

Q: What is the primary difference between these two parts?

A: The P1300SCMCLRP supports 400A peak pulse current at 8/20µs, while the SMTPA120 supports 150A at the same waveform. The SMTPA120 also has lower capacitance (30pF vs. 60pF). Both parts maintain identical voltage specifications and hold current.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the P1300SCMCLRP and SMTPA120 are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can these parts be used interchangeably in high-current transient suppression circuits?

A: No. High-current applications requiring 400A peak pulse capability must use the P1300SCMCLRP. The SMTPA120 is limited to 150A peak pulse current and is suitable only for lower-current transient suppression applications.

Q: Do both parts use the same package and mounting type?

A: Yes. Both parts use DO-214AA (SMB) surface-mount packaging and are compatible with standard SMB footprints.