LCE9.0A-E3/54 Equivalent & Substitute Parts

Part Overview

The LCE9.0A-E3/54 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection applications. This component features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 97A peak pulse current capability in a 1500W power rating. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LCE9.0A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1018LCE9.0A-E3/54 Datasheet

Current PartRFQ

LCE9.0A

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

DirectRFQ

1.5KE10A

Taiwan Semiconductor CorporationIn Stock: 43181.5KE10A Datasheet

MFR RecommendedRFQ

1.5KE10A-B

Littelfuse Inc.In Stock: 9021.5KE10A-B Datasheet

MFR RecommendedRFQ

1.5KE10A-TP

Micro Commercial CoIn Stock: 18471.5KE10A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE9.0A-E3/54 are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Voltage - Reverse Standoff (Typ): 8.55V to 9V range
• Voltage - Clamping (Max) @ Ipp: 14.5V to 15.4V range
• Current - Peak Pulse (10/1000µs): minimum 97A
• Power - Peak Pulse: 1500W (1.5kW)
• Mounting Type: Through Hole
• Package / Case: DO-201AA, DO-27, or DO-201AE (Axial)
• Operating Temperature: -55°C to -65°C minimum, 175°C maximum
• RoHS Status: ROHS3 Compliant

The substitute parts identified maintain these electrical characteristics within acceptable tolerances while offering active product status and improved availability compared to the obsolete original component.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: LCE9.0A (Littelfuse Inc.)

The LCE9.0A represents the closest electrical equivalent to the LCE9.0A-E3/54, maintaining identical voltage specifications (9V reverse standoff, 15.4V clamping) and current ratings (97A peak pulse). This part carries active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The primary distinction is the reduced minimum operating temperature of -55°C versus the original -65°C specification.

Secondary Substitutes: 1.5KE10A Series

The 1.5KE10A, 1.5KE10A-B, and 1.5KE10A-TP variants provide functional substitution with slightly modified electrical characteristics. These parts operate at a lower reverse standoff voltage (8.55V) and reduced clamping voltage (14.5V) compared to the original specification. All three variants maintain the 1500W power rating and through-hole mounting configuration. Peak pulse current ratings range from 104.8A to 108A, exceeding the original 97A specification. All substitute options are ROHS3 compliant and carry active product status.

Compliance and Certification Status

All identified substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original component. Moisture sensitivity level remains at MSL 1 (Unlimited) across all options. ECCN and HTSUS classifications are identical to the original part.

Frequently Asked Questions (FAQ)

Q: Can the LCE9.0A directly replace the LCE9.0A-E3/54?

A: Yes. The LCE9.0A maintains identical electrical specifications for voltage and current parameters, with the exception of a reduced minimum operating temperature (-55°C versus -65°C). For applications operating above -55°C, this part provides direct substitution.

Q: What are the key differences between the LCE9.0A and the 1.5KE10A series?

A: The LCE9.0A maintains the original 9V reverse standoff and 15.4V clamping voltage specifications. The 1.5KE10A series operates at 8.55V reverse standoff and 14.5V clamping voltage. Both meet the 1500W power requirement and through-hole mounting specification. The 1.5KE10A series provides higher peak pulse current ratings (104.8A to 108A).

Q: Are packaging differences significant for substitution?

A: Packaging format (Tape & Reel, Bulk, or Cut Tape) affects procurement and assembly processes but does not impact electrical performance or physical mounting compatibility. All substitute parts use DO-201AA, DO-27, or DO-201AE axial through-hole packages, maintaining mechanical compatibility with the original design.

Q: What is the impact of the reduced minimum operating temperature in substitute parts?

A: The LCE9.0A and 1.5KE10A series specify -55°C minimum operating temperature compared to the original -65°C. For applications requiring operation below -55°C, the original specification must be verified against actual system requirements.

Q: Do all substitute parts maintain RoHS compliance?

A: Yes. All identified substitute parts carry ROHS3 compliance status, consistent with the original LCE9.0A-E3/54 component.

Q: Which substitute part offers the best availability?

A: The 1.5KE10A (Taiwan Semiconductor Corporation) offers the highest inventory level at 4300 pieces in stock, followed by the 1.5KE10A-TP (Micro Commercial Co) at 1741 pieces. The LCE9.0A (Littelfuse) maintains 882 pieces in stock.