P2103ACMC Equivalent & Substitute Parts

Part Overview

The P2103ACMC is a three-element SIDACtor® thyristor transient voltage suppressor manufactured by Littelfuse, designed for 170V off-state voltage applications with 400A peak pulse current capability in a TO-220 Modified 3-SIP package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The substitute part maintains identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

P2103ACMC

LittelfuseIn Stock: 768P2103ACMC Datasheet

Current PartRFQ

P2103ACMCL

LittelfuseIn Stock: 903P2103ACMCL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2103ACMC with the P2103ACMCL is based on strict equivalence of the following critical parameters:

• Voltage ratings: Breakover (250V), Off-State (170V), and On-State (8V) are identical
• Current specifications: Peak pulse current (8/20µs: 400A; 10/1000µs: 100A) and hold current (150mA) are identical
• Element configuration: Both parts contain 3 elements
• Capacitance values: 30pF and 45pF match across both parts
• Package and mounting: Identical 3-SIP TO-220 Modified through-hole configuration
• Moisture sensitivity: Both rated MSL 1 (Unlimited)

The P2103ACMCL differs only in product status (Active vs. Obsolete), packaging format (Bulk vs. standard), and compliance certifications, with no electrical or mechanical parameter deviation.

Parameter Comparison

Engineering Selection Recommendations

The P2103ACMCL is the direct functional equivalent of the P2103ACMC. Selection of the P2103ACMCL is supported by:

• Active product status, ensuring long-term availability and manufacturing support
• ROHS3 compliance certification, meeting current regulatory requirements for electronic components
• REACH Unaffected status, confirming compliance with chemical substance restrictions
• Identical electrical performance across all specified parameters
• Identical mechanical configuration and through-hole mounting compatibility
• Bulk packaging format suitable for production environments

The P2103ACMC, while electrically equivalent, carries obsolete status and lacks current compliance certifications, making it unsuitable for new designs or long-term procurement strategies.

Frequently Asked Questions (FAQ)

Q: Can the P2103ACMCL be used as a direct replacement for the P2103ACMC in existing designs?

A: Yes. All electrical parameters, mechanical dimensions, and pinout configurations are identical. The P2103ACMCL is a direct pin-for-pin and functionally equivalent substitute.

Q: What is the difference between the P2103ACMC and P2103ACMCL?

A: The parts are electrically and mechanically identical. The primary differences are product status (Obsolete vs. Active), packaging format (standard vs. Bulk), and compliance certifications (RoHS non-compliant vs. ROHS3 Compliant; REACH status specified for the substitute).

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

A: No. Both parts use the 3-SIP TO-220 Modified package with through-hole mounting. PCB layout and assembly procedures remain unchanged.

Q: Why is the P2103ACMC listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The P2103ACMCL serves as the active equivalent for ongoing procurement and design support.

Q: Does the P2103ACMCL meet current regulatory requirements?

A: Yes. The P2103ACMCL is ROHS3 compliant and REACH Unaffected, meeting current environmental and chemical substance regulations.

Q: Are the electrical specifications identical between both parts?

A: Yes. Voltage ratings (250V breakover, 170V off-state, 8V on-state), current ratings (400A peak pulse 8/20µs, 100A peak pulse 10/1000µs, 150mA hold current), element count (3), and capacitance values (30pF, 45pF) are identical.