P3500EB Equivalent & Substitute Parts

Part Overview

The P3500EB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This component is designed for overvoltage protection applications requiring 320V off-state voltage rating and 250A peak pulse current capability in a TO-226-2 package configuration. The P3500EB is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

P3500EB

Littelfuse Inc.In Stock: 2374P3500EB Datasheet

Current PartRFQ

P3500EBL

Littelfuse Inc.In Stock: 20141P3500EBL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3500EB is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

• Voltage - Breakover: 400V
• Voltage - Off State: 320V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 250A
• Current - Peak Pulse (10/1000µs): 80A
• Current - Hold (Ih): 150mA
• Capacitance: 40pF
• Number of Elements: 1
• Package / Case: TO-226-2, TO-92-2 (TO-226AC)
• Mounting Type: Through Hole

Parts meeting all these parameters are classified as direct electrical and mechanical equivalents.

Parameter Comparison

Engineering Selection Recommendations

The P3500EBL is a direct electrical and mechanical equivalent to the P3500EB. Both parts share identical voltage ratings, current specifications, capacitance, and package configuration. The primary distinction is product lifecycle status: the P3500EB is obsolete while the P3500EBL is active production.

For new designs and ongoing system support, the P3500EBL is the appropriate selection. This part maintains full electrical compatibility while offering active manufacturer support and current availability. The P3500EBL additionally provides ROHS3 compliance, addressing regulatory requirements for new applications.

Frequently Asked Questions (FAQ)

Q: Can P3500EBL be used as a direct replacement for P3500EB?

A: Yes. The P3500EBL meets all electrical and mechanical parameters of the P3500EB, including voltage ratings (400V breakover, 320V off-state), current specifications (250A peak pulse at 8/20µs), and package configuration (TO-226-2). Direct substitution is valid.

Q: What is the difference between P3500EB and P3500EBL?

A: The parts are electrically and mechanically identical. The primary differences are product status (P3500EB is obsolete; P3500EBL is active) and RoHS compliance (P3500EB is non-compliant; P3500EBL is ROHS3 compliant).

Q: Are there packaging differences between these parts?

A: Both parts use identical package configurations: TO-226-2 and TO-92-2 (TO-226AC). Both are through-hole mounted components with no packaging variations.

Q: Why should I transition from P3500EB to P3500EBL?

A: The P3500EB is obsolete and subject to discontinuation. The P3500EBL provides equivalent performance with active manufacturer support, current inventory availability, and regulatory compliance for new applications.