P1200SCMCLRP Equivalent & Substitute Parts

Part Overview

The P1200SCMCLRP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., part of the SIDACtor® series. This component is designed for overvoltage protection applications requiring high peak pulse current handling in a compact surface-mount package. The device operates with a 100V off-state voltage rating and handles 400A peak pulse current at 8/20µs pulse width. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

P1200SCMCLRP

Littelfuse Inc.In Stock: 1083P1200SCMCLRP Datasheet

Current PartRFQ

SMTPA100

STMicroelectronicsIn Stock: 2380SMTPA100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for TVS thyristor devices is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Voltage - Off State: Must match the primary part specification (100V)
• Voltage - Breakover: Must be within acceptable operating range (130V ±3V tolerance typical for TVS applications)
• Package / Case: Must be identical (DO-214AA, SMB)
• Mounting Type: Must be Surface Mount
• Number of Elements: Must be single element (1)

Current Handling Consideration: The P1200SCMCLRP specifies 400A peak pulse current at 8/20µs. Substitute parts with lower peak pulse current ratings (such as 150A) remain functionally compatible when the application circuit design accommodates the reduced current capacity, as the voltage suppression function is maintained across the specified voltage range.

Identified Substitute: SMTPA100 (STMicroelectronics) meets all electrical and mechanical compatibility criteria with matching 100V off-state voltage, similar breakover voltage (133V), identical package (DO-214AA, SMB), and surface-mount configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the P1200SCMCLRP and SMTPA100 are active products with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Both devices carry ECCN EAR99 classification and HTSUS code 8541.30.0080, indicating equivalent export and tariff treatment.

The P1200SCMCLRP offers higher peak pulse current capacity (400A at 8/20µs versus 150A), making it suitable for applications requiring maximum transient energy absorption. The SMTPA100 provides equivalent voltage suppression performance with reduced current handling, appropriate for circuits where peak pulse current requirements are lower or where component availability and lead time are prioritized.

Selection between these parts should be based on application circuit requirements for peak pulse current handling and component availability. Both parts are suitable for direct substitution in applications where the reduced current rating of the SMTPA100 is acceptable.

Frequently Asked Questions (FAQ)

Q: Can SMTPA100 be used as a direct replacement for P1200SCMCLRP?

A: SMTPA100 is electrically and mechanically compatible for voltage suppression applications. The primary difference is peak pulse current capacity: SMTPA100 handles 150A at 8/20µs compared to P1200SCMCLRP at 400A. Substitution is valid when application circuit design accommodates the lower current rating.

Q: What are the key compatibility parameters for TVS thyristor substitution?

A: Off-state voltage (100V), breakover voltage range (130–133V), package type (DO-214AA, SMB), mounting configuration (surface mount), and element count (single element) must match or be compatible. Peak pulse current capacity should be evaluated against application requirements.

Q: Are there packaging differences between these parts?

A: Both P1200SCMCLRP and SMTPA100 use identical DO-214AA (SMB) surface-mount packages. P1200SCMCLRP is supplied in Tape & Reel (TR) format, while SMTPA100 is available in Cut Tape (CT) and Digi-Reel® formats. All formats are compatible with standard surface-mount assembly equipment.

Q: Do both parts meet current regulatory compliance requirements?

A: Yes. Both P1200SCMCLRP and SMTPA100 are RoHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Both are classified under HTSUS code 8541.30.0080.

Q: What is the capacitance difference between these parts?

A: P1200SCMCLRP has 65pF capacitance while SMTPA100 has 35pF. This difference may affect circuit behavior in applications sensitive to parasitic capacitance; circuit simulation or testing is appropriate when capacitance is a critical design parameter.