LCE16-B Equivalent & Substitute Parts

Part Overview

The LCE16-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This component features a 16V reverse standoff voltage with a 26V maximum clamping voltage and 57A peak pulse current capability in a DO-201 axial package format.

The LCE16-B carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing maintenance and production requirements for systems utilizing this component.

Substiute Parts

LCE16-B

Littelfuse Inc.In Stock: 794LCE16-B Datasheet

Current PartRFQ

LCE16A

Littelfuse Inc.In Stock: 2686LCE16A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCE16-B is determined by electrical and mechanical parameter equivalence within the TVS diode category. The following parameters establish substitution validity:

Electrical Parameters (Critical):

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 57A
• Power - Peak Pulse: 1500W

Mechanical Parameters (Critical):

• Package / Case: DO-201AA, DO-27, Axial
• Unidirectional Channels: 1
• Type: Zener

Environmental Parameters (Supporting):

• Operating Temperature Range: -55°C to 175°C (TJ)

Substitute parts must match all critical electrical and mechanical parameters to ensure functional equivalence in circuit protection applications. The LCE16A meets these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The LCE16A is a direct electrical and mechanical equivalent to the LCE16-B. Both components are manufactured by Littelfuse Inc. within the LCE series and share identical electrical specifications across all critical parameters: 16V reverse standoff voltage, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, and 57A peak pulse current.

Product Status Consideration: The LCE16-B is classified as obsolete, while the LCE16A maintains active product status. Selection of the LCE16A provides access to current manufacturing, improved supply chain availability, and ongoing manufacturer support.

Compliance Status: Both components are RoHS compliant. The LCE16A carries ROHS3 compliance designation, representing the current regulatory standard. Both components are REACH unaffected and carry identical ECCN and HTSUS classifications, ensuring regulatory equivalence.

Packaging and Mounting: Both parts utilize DO-201 axial package format suitable for through-hole mounting applications. The LCE16A is supplied in Cut Tape (CT) packaging, which is standard for active production components.

The LCE16A is suitable for direct substitution in all applications where the LCE16-B was originally specified.

Frequently Asked Questions (FAQ)

Q: Can the LCE16A be used as a direct replacement for the LCE16-B?

A: Yes. The LCE16A is a direct substitute. Both components share identical electrical parameters (16V standoff, 26V clamping, 57A peak pulse current), identical mechanical specifications (DO-201 axial package), and identical operating temperature range (-55°C to 175°C). The components are functionally equivalent for circuit protection applications.

Q: What is the primary difference between the LCE16-B and LCE16A?

A: The LCE16-B is obsolete, while the LCE16A is an active product. The LCE16A represents the current production equivalent with improved supply availability and ongoing manufacturer support. RoHS compliance status has been updated to ROHS3 in the LCE16A.

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

A: No. Both components use the DO-201AA/DO-27 axial package format and are suitable for through-hole mounting. The primary packaging difference is that the LCE16A is supplied in Cut Tape (CT) format, which is standard for active production components.

Q: What applications are these TVS diodes designed for?

A: The LCE16-B was specified for telecom applications. The LCE16A is designated for general purpose applications. Both components provide transient voltage suppression across the same electrical specifications and are suitable for circuit protection in systems requiring 16V standoff voltage and 26V clamping voltage protection.

Q: Are there any compliance or regulatory differences?

A: Both components are RoHS compliant and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. The LCE16A carries ROHS3 compliance, representing the current regulatory standard. Both components are REACH unaffected. Regulatory equivalence is established.

Q: What is the moisture sensitivity level for these components?

A: Both the LCE16-B and LCE16A carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.