SD15C-TP Equivalent & Substitute Parts

Part Overview

The SD15C-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 15V reverse standoff voltage with a 40V maximum clamping voltage and 12A peak pulse current capability in the SOD-323 package.

The SD15C-TP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

SD15C-TP

Micro Commercial CoIn Stock: 56300SD15C-TP Datasheet

Current PartRFQ

SD15CH-TP

Micro Commercial CoIn Stock: 718SD15CH-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD15C-TP is determined by the following critical electrical and mechanical parameters:

• Voltage Rating Compatibility: Reverse standoff voltage and breakdown voltage must match or exceed the original specification to maintain circuit protection thresholds.
• Clamping Voltage Performance: Maximum clamping voltage determines the peak voltage experienced by protected circuitry; lower clamping voltages provide superior protection.
• Peak Pulse Current Capability: Current handling capacity must support the transient energy levels in the protected circuit.
• Package and Mounting: Physical form factor (SOD-323) and surface-mount compatibility must be preserved for PCB integration.
• Thermal and Compliance Requirements: Operating temperature range and RoHS compliance must align with application and regulatory requirements.

The SD15CH-TP qualifies as a substitute based on matching voltage ratings, identical package specifications, and superior electrical performance characteristics within the same product family.

Parameter Comparison

Engineering Selection Recommendations

The SD15CH-TP is an active substitute for the obsolete SD15C-TP. Both components are manufactured by Micro Commercial Co and share identical voltage ratings, package specifications, and thermal operating ranges. The SD15CH-TP demonstrates enhanced electrical performance with improved clamping voltage (31V versus 40V), increased peak pulse current capability (16A versus 12A), and higher peak pulse power rating (500W versus 350W).

Both parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity classification, ensuring compatibility with modern manufacturing and environmental standards. The transition from SD15C-TP to SD15CH-TP does not require circuit redesign when voltage protection thresholds and package constraints are the primary selection criteria.

Frequently Asked Questions (FAQ)

Q: Can the SD15CH-TP directly replace the SD15C-TP in existing designs?

A: Yes. Both components share identical reverse standoff voltage (15V), breakdown voltage (16.7V), SOD-323 package, and surface-mount configuration. The SD15CH-TP provides superior clamping performance and current handling, making it functionally compatible for the same circuit applications.

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

A: The SD15CH-TP offers improved electrical performance with lower maximum clamping voltage (31V versus 40V), higher peak pulse current (16A versus 12A), and greater peak pulse power dissipation (500W versus 350W). The SD15C-TP is obsolete; the SD15CH-TP is in active production.

Q: Are there packaging differences between SD15C-TP and SD15CH-TP?

A: Both components use the SOD-323 surface-mount package. The SD15CH-TP is supplied in Tape & Reel (TR) packaging, while the SD15C-TP packaging specification was not provided. Both are compatible with standard surface-mount assembly processes.

Q: Do these parts have the same thermal characteristics?

A: Yes. Both components operate across the identical temperature range of -55°C to 125°C (TJ) and maintain the same moisture sensitivity level (MSL 1, Unlimited).

Q: Are both parts RoHS compliant?

A: Yes. Both the SD15C-TP and SD15CH-TP are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.