LCE9.0 Equivalent & Substitute Parts

Part Overview

The LCE9.0 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., rated for 9V reverse standoff voltage with a 16.17V maximum clamping voltage at peak pulse current. This component is designed for general-purpose transient voltage suppression in through-hole applications using the DO-201 package. The LCE9.0 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Suitable alternatives maintain the core electrical specifications while offering active product status and improved availability.

Substiute Parts

LCE9.0

Littelfuse Inc.In Stock: 953LCE9.0 Datasheet

Current PartRFQ

LCE9.0A

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

DirectRFQ

5KP9.0A-TP

Micro Commercial CoIn Stock: 63685KP9.0A-TP Datasheet

MFR RecommendedRFQ

5KP9.0E3/TR13

Microchip TechnologyIn Stock: 7545KP9.0E3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE9.0 are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff: 9V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 15.4V to 16.9V (within acceptable range for circuit protection)
• Current - Peak Pulse (10/1000µs): 97A minimum (equal or greater capacity)
• Power - Peak Pulse: 1500W minimum (equal or greater dissipation capability)
• Operating Temperature Range: -55°C ~ 175°C (TJ) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial configuration (compatible with DO-201 footprint)
• RoHS Status: ROHS3 Compliant (regulatory compliance maintained)

Three substitute parts meet these criteria: LCE9.0A (direct Littelfuse equivalent), 5KP9.0A-TP (Micro Commercial Co), and 5KP9.0E3/TR13 (Microchip Technology).

Parameter Comparison

Engineering Selection Recommendations

LCE9.0A is the primary substitute for direct replacement. As an active product from the same manufacturer (Littelfuse Inc.), it maintains identical electrical performance at the 9V rating with matching peak pulse power dissipation (1500W) and operating temperature range. The LCE9.0A offers improved clamping voltage (15.4V vs. 16.17V), which provides tighter transient suppression. This part is available in Tape & Reel packaging, supporting automated assembly processes.

5KP9.0A-TP (Micro Commercial Co) qualifies as a secondary substitute. It maintains the 9V reverse standoff voltage and 15.4V clamping voltage specification. The R-6 package is axially compatible with the original DO-201 footprint. This part offers significantly higher peak pulse power dissipation (5000W), providing enhanced margin for high-energy transient events. Cut Tape packaging is suitable for manual or semi-automated assembly.

5KP9.0E3/TR13 (Microchip Technology) is an alternative substitute with enhanced performance characteristics. It maintains the 9V reverse standoff voltage with a 16.9V clamping voltage closely matching the original specification. This part delivers substantially higher peak pulse current capacity (296A vs. 97A) and peak pulse power dissipation (5000W), making it suitable for applications requiring greater transient energy absorption. The P600 package is axially compatible with the original footprint.

All three substitutes maintain ROHS3 compliance and the required operating temperature range (-55°C ~ 175°C TJ). Selection should be based on packaging compatibility with existing assembly equipment and the specific transient energy requirements of the application circuit.

Frequently Asked Questions (FAQ)

Q: Can LCE9.0A be used as a direct replacement for LCE9.0?

A: Yes. LCE9.0A is a direct substitute from Littelfuse Inc. with identical reverse standoff voltage (9V), peak pulse current (97A), and peak pulse power dissipation (1500W). The primary difference is improved clamping voltage (15.4V vs. 16.17V), which provides tighter transient suppression. LCE9.0A is an active product with superior availability.

Q: What is the difference between the three substitute parts?

A: All three maintain the 9V reverse standoff voltage required for circuit compatibility. LCE9.0A and 5KP9.0A-TP both provide 15.4V clamping voltage and 1500W peak pulse power. 5KP9.0E3/TR13 offers 16.9V clamping voltage with enhanced performance: 296A peak pulse current and 5000W peak pulse power dissipation. The choice depends on application transient energy requirements and packaging compatibility.

Q: Are the package types interchangeable?

A: All substitute parts use axial through-hole packages (DO-201AA, R-6, or P600) compatible with the original DO-201 footprint. Physical lead spacing and mounting hole alignment are compatible. Verify specific PCB layout requirements for your application before substitution.

Q: Do all substitutes maintain RoHS compliance?

A: Yes. LCE9.0A, 5KP9.0A-TP, and 5KP9.0E3/TR13 are all ROHS3 compliant, matching the regulatory status of the original LCE9.0.

Q: Which substitute should I select for new designs?

A: For new designs requiring the original LCE9.0 specifications, LCE9.0A is the recommended primary choice due to manufacturer continuity and identical electrical performance. If higher transient energy absorption is required, 5KP9.0E3/TR13 provides enhanced current and power handling. Verify packaging compatibility with your assembly process before final selection.

Q: What is the operating temperature range for all substitutes?

A: All substitute parts operate across the identical temperature range: -55°C to 175°C (junction temperature), matching the original LCE9.0 specification.