LCE9.0-B Equivalent & Substitute Parts

Part Overview

The LCE9.0-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for telecom applications. This component features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 97A peak pulse current capability in a DO-201 axial package. The LCE9.0-B is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and procurement planning.

Substiute Parts

LCE9.0-B

Littelfuse Inc.In Stock: 1183LCE9.0-B Datasheet

Current PartRFQ

LCE9.0A

Littelfuse Inc.In Stock: 932LCE9.0A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LCE9.0-B is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff: 9V (Typ)
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Current - Peak Pulse (10/1000µs): 97A
• Power - Peak Pulse: 1500W
• Operating Temperature Range: -55°C to 175°C (TJ)
• Package / Case: DO-201AA, DO-27, Axial
• Type: Zener, Unidirectional (1 channel)

The LCE9.0-A is a direct functional equivalent manufactured by Littelfuse Inc. within the same LCE series. This substitute maintains identical electrical specifications while differing in product status (Active vs. Obsolete) and packaging configuration (Tape & Reel vs. bulk). The LCE9.0-A is suitable for direct replacement in applications where the electrical performance parameters are the determining factors for component selection.

Parameter Comparison

Engineering Selection Recommendations

The LCE9.0-A is the primary substitute for the obsolete LCE9.0-B. Both components are manufactured by Littelfuse Inc. and maintain identical electrical and thermal specifications across all critical parameters. The LCE9.0-A carries Active product status, ensuring continued availability and manufacturing support.

Compliance Considerations:

The LCE9.0-B is RoHS Compliant, while the LCE9.0-A is ROHS3 Compliant, indicating enhanced regulatory alignment with current environmental standards. Both components are classified as ECCN EAR99 and carry HTSUS code 8541.10.0080. The LCE9.0-A includes REACH Unaffected status, providing additional regulatory clarity for international applications.

Packaging Distinction:

The primary difference between these components is packaging configuration. The LCE9.0-B is supplied in bulk form, while the LCE9.0-A is supplied in Tape & Reel (TR) format. This distinction affects procurement logistics and automated assembly compatibility but does not impact electrical performance or functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the LCE9.0-A directly replace the LCE9.0-B in existing designs?

A: Yes. The LCE9.0-A maintains identical electrical specifications, including voltage ratings, current handling, power dissipation, and operating temperature range. Both components are housed in the DO-201 axial package and are functionally equivalent for circuit applications.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: Product status indicates manufacturing and supply availability. The LCE9.0-B is obsolete and no longer manufactured. The LCE9.0-A is active and continues to be produced by Littelfuse Inc., ensuring reliable procurement for new designs and ongoing system support.

Q: How does the packaging difference (bulk vs. Tape & Reel) affect component selection?

A: Packaging format affects procurement and assembly processes. Tape & Reel packaging (LCE9.0-A) is optimized for automated pick-and-place assembly and high-volume production. Bulk packaging (LCE9.0-B) is typically used for manual assembly or lower-volume applications. Electrical performance is unaffected by packaging format.

Q: Are there compliance differences between the LCE9.0-B and LCE9.0-A?

A: Both components are RoHS compliant. The LCE9.0-A carries ROHS3 Compliant status, representing alignment with the most current RoHS directive. The LCE9.0-A also includes REACH Unaffected status. Both components share identical ECCN and HTSUS classifications.

Q: What parameters must remain constant for substitution validity?

A: Substitution validity is determined by equivalence in voltage ratings (9V reverse standoff, 15.4V clamping), current handling (97A peak pulse), power dissipation (1500W), operating temperature range (-55°C to 175°C), package type (DO-201 axial), and device type (Zener, unidirectional). Deviation in any of these parameters invalidates substitution.

Q: Is the LCE9.0-A suitable for telecom applications?

A: The LCE9.0-A is classified for General Purpose applications, while the LCE9.0-B was specified for Telecom applications. However, electrical specifications are identical. Application suitability depends on specific circuit requirements and system design parameters beyond component electrical ratings.