P1800EB Equivalent & Substitute Parts

Part Overview

The P1800EB is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This component is designed for overvoltage protection applications requiring 170V off-state voltage rating and 250A peak pulse current capability in a TO-226-2 package configuration. The P1800EB is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

P1800EB

Littelfuse Inc.In Stock: 871P1800EB Datasheet

Current PartRFQ

P1800EBL

Littelfuse Inc.In Stock: 20410P1800EBL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1800EB is determined by electrical and mechanical parameter equivalence. The following criteria establish direct substitutability:

• Voltage - Breakover: 220V
• Voltage - Off State: 170V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 250A
• Current - Peak Pulse (10/1000µs): 80A
• Current - Hold (Ih): 150mA
• Capacitance: 50pF
• Number of Elements: 1
• Package / Case: TO-226-2, TO-92-2 (TO-226AC)
• Mounting Type: Through Hole

Parts meeting all these parameters are electrically and mechanically interchangeable with the P1800EB.

Parameter Comparison

Engineering Selection Recommendations

The P1800EBL is the direct equivalent substitute for the P1800EB. Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications across all rated parameters. The primary distinction is product status: the P1800EB is obsolete while the P1800EBL is active.

The P1800EBL offers additional compliance advantages. It meets ROHS3 requirements, whereas the P1800EB is non-compliant. The P1800EBL is also REACH Unaffected, providing regulatory alignment for applications subject to environmental compliance mandates.

For new designs or ongoing procurement of existing designs, the P1800EBL is the appropriate selection. For legacy systems currently using the P1800EB, direct substitution with the P1800EBL is electrically and mechanically valid without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the P1800EBL replace the P1800EB in existing circuits?

A: Yes. The P1800EBL is electrically and mechanically equivalent to the P1800EB. All voltage ratings, current ratings, and package specifications are identical. Direct substitution requires no circuit changes.

Q: What is the difference between P1800EB and P1800EBL?

A: The parts are electrically identical. The primary differences are product status (P1800EB is obsolete; P1800EBL is active) and compliance certifications (P1800EBL is ROHS3 Compliant and REACH Unaffected, while P1800EB is non-compliant).

Q: Are there packaging differences between these parts?

A: Both parts use the same package configuration: TO-226-2, TO-92-2 (TO-226AC). The P1800EB is supplied in standard packaging, while the P1800EBL is supplied in bulk packaging. This does not affect electrical or mechanical compatibility.

Q: Why should I use P1800EBL instead of P1800EB?

A: The P1800EBL is the active product with current manufacturing support and improved regulatory compliance. The P1800EB is obsolete and subject to availability constraints.

Q: Are the mounting requirements identical?

A: Yes. Both parts are through-hole mounted components with identical pin configurations and PCB footprints.