P0300SCMC Equivalent & Substitute Parts

Part Overview

The P0300SCMC is a 25V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the DO-214AA (SMB) package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity. The SIDACtor® series thyristor provides transient voltage suppression in surface mount applications requiring high peak pulse current handling.

Substiute Parts

P0300SCMC

Littelfuse Inc.In Stock: 1981P0300SCMC Datasheet

Current PartRFQ

P0300SCMCLRP

Littelfuse Inc.In Stock: 15773P0300SCMCLRP Datasheet

DirectRFQ

SMP100LC-25

STMicroelectronicsIn Stock: 17976SMP100LC-25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P0300SCMC are qualified based on the following critical parameters:

• Voltage - Off State: 25V (exact match required)
• Voltage - Breakover: 40V or lower (acceptable range for transient suppression)
• Current - Peak Pulse (8/20µs): 400A (exact match required)
• Package / Case: DO-214AA, SMB (mechanical and electrical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Number of Elements: 1 (functional equivalence)

The substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

P0300SCMCLRP is the direct equivalent substitute from Littelfuse Inc., maintaining identical electrical specifications while offering active product status and ROHS3 compliance. This part is recommended as the primary replacement for the obsolete P0300SCMC.

SMP100LC-25 from STMicroelectronics provides functional equivalence with the same off-state voltage, peak pulse current, and package configuration. This part features a higher hold current (150mA versus 50mA) and increased capacitance (65pF versus 45pF), with a lower breakover voltage (35V versus 40V). SMP100LC-25 is suitable for applications where these parameter variations are acceptable and offers active product status with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can P0300SCMCLRP be used as a direct replacement for P0300SCMC?

A: Yes. P0300SCMCLRP maintains identical electrical specifications including 25V off-state voltage, 40V breakover voltage, and 400A peak pulse current, with the same DO-214AA package. The primary difference is product status (active versus obsolete) and RoHS compliance.

Q: What are the key differences between P0300SCMCLRP and SMP100LC-25?

A: Both parts share the same 25V off-state voltage, 400A peak pulse current, and DO-214AA package. SMP100LC-25 has a lower breakover voltage (35V versus 40V), higher hold current (150mA versus 50mA), and higher capacitance (65pF versus 45pF). These differences may affect circuit behavior in specific transient suppression applications.

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

A: Yes. All listed substitute parts use the DO-214AA (SMB) surface mount package, ensuring mechanical compatibility with existing PCB designs.

Q: What compliance certifications apply to the substitute parts?

A: Both P0300SCMCLRP and SMP100LC-25 are ROHS3 compliant and REACH unaffected, providing compliance advantages over the obsolete P0300SCMC.

Q: Can SMP100LC-25 be used in all applications where P0300SCMC was specified?

A: SMP100LC-25 is functionally equivalent for transient voltage suppression applications with the same package and core electrical ratings. However, the differences in breakover voltage, hold current, and capacitance should be evaluated against specific circuit requirements before substitution.