P3203ACMCL Equivalent & Substitute Parts

Part Overview

The P3203ACMCL is a 270V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse in the SIDACtor® series. This through-hole component is designed for transient voltage suppression applications requiring high current handling capability in a 3-SIP package configuration. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications where electrical and mechanical parameters remain within acceptable tolerances.

Substiute Parts

P3203ACMCL

LittelfuseIn Stock: 793P3203ACMCL Datasheet

Current PartRFQ

P3203ACL

Littelfuse Inc.In Stock: 1618P3203ACL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3203ACMCL is based on strict equivalence of the following critical electrical and mechanical parameters:

• Voltage ratings: Breakover (350V), Off-State (270V), and On-State (8V) must remain identical
• Current specifications: Peak pulse (8/20µs) at 400A and (10/1000µs) at 100A must be maintained
• Hold current (Ih) of 150 mA must be preserved
• Number of elements: 3-element configuration required
• Package configuration: 3-SIP through-hole mounting in TO-220 Modified case
• Compliance certifications: RoHS3 and REACH status must be equivalent

The P3203ACL meets all these criteria and is therefore classified as a direct substitute. Capacitance variations (30pF/40pF versus 45pF/70pF) fall within acceptable tolerances for this component category and do not affect substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Both the P3203ACMCL and P3203ACL are active production components from Littelfuse with identical electrical specifications and full regulatory compliance. Selection between these parts may be based on inventory availability, lead time, or procurement source. The P3203ACL currently maintains higher stock levels (1600 pcs versus 761 pcs), which may provide supply chain advantages. Both parts carry equivalent RoHS3 and REACH certifications, ensuring compliance with environmental and regulatory requirements. No technical performance differentiation exists between these components for standard application requirements.

Frequently Asked Questions (FAQ)

Q: Can P3203ACL be used as a direct replacement for P3203ACMCL in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters including voltage ratings, current specifications, package configuration, and compliance certifications. No circuit redesign or board layout modification is required.

Q: What is the significance of the capacitance difference (30pF/40pF versus 45pF/70pF)?

A: Capacitance variations between these parts fall within acceptable tolerances for TVS thyristor applications and do not affect substitution eligibility or functional performance in standard transient suppression circuits.

Q: Are there any packaging or mounting differences between these parts?

A: No. Both parts use identical 3-SIP through-hole packaging in TO-220 Modified case configuration. PCB footprints and mounting procedures are identical.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both P3203ACMCL and P3203ACL are RoHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited).

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on current inventory levels, supplier availability, or procurement preferences. Both parts are active production items with equivalent technical specifications and compliance status.