LCE9.0A Equivalent & Substitute Parts

Part Overview

The LCE9.0A is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., rated for 9V reverse standoff voltage with a 15.4V maximum clamping voltage. This through-hole component in DO-201AA packaging is designed for general-purpose transient voltage suppression applications. The product is currently active and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, packaging preferences, or application-specific requirements.

Substiute Parts

LCE9.0A

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

Current PartRFQ

5KP9.0A

LittelfuseIn Stock: 33145KP9.0A Datasheet

MFR RecommendedRFQ

5KP9.0A-TP

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Breakdown (Min): 10V
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Unidirectional Channels: 1
• Type: Zener
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C to 175°C (TJ)
• RoHS Status: ROHS3 Compliant

The identified substitutes maintain identical voltage specifications and thermal operating range. Variations in peak pulse current and power dissipation ratings are permitted when the substitute part meets or exceeds the original specification, allowing for higher performance capability in the same application context. Package form factors differ (DO-201AA vs. P600 vs. R-6) but all are through-hole axial configurations suitable for PCB mounting.

Parameter Comparison

Engineering Selection Recommendations

All three parts—LCE9.0A, 5KP9.0A, and 5KP9.0A-TP—are active products with ROHS3 compliance and identical voltage specifications. Selection between these parts should be based on:

1. Package form factor compatibility with PCB layout and mechanical constraints (DO-201AA vs. P600 vs. R-6 axial packages)
2. Peak pulse current and power dissipation requirements; the 5KP series parts provide higher ratings (331.2A, 5000W) compared to the LCE9.0A (97A, 1500W)
3. Inventory availability and lead time considerations
4. Supplier preference and procurement agreements

All parts operate within the same temperature range (-55°C to 175°C) and maintain identical voltage protection characteristics at the specified clamping point.

Frequently Asked Questions (FAQ)

Q: Can the 5KP9.0A replace the LCE9.0A in my circuit?

A: Yes. Both parts share identical voltage specifications (9V reverse standoff, 15.4V clamping voltage) and operating temperature range. The 5KP9.0A provides higher peak pulse current (331.2A vs. 97A) and power dissipation (5000W vs. 1500W), making it suitable for applications requiring equal or greater transient suppression capability. Package form factor (P600 vs. DO-201AA) must be verified for PCB compatibility.

Q: What is the difference between the 5KP9.0A and 5KP9.0A-TP?

A: Both parts maintain identical voltage ratings and operating temperature specifications. The primary difference is the manufacturer (Littelfuse vs. Micro Commercial Co) and packaging designation (P600 vs. R-6). Peak pulse current is not specified for the 5KP9.0A-TP, but power dissipation is rated at 5000W, matching the 5KP9.0A.

Q: Are all three parts through-hole components?

A: Yes. The LCE9.0A, 5KP9.0A, and 5KP9.0A-TP are all through-hole mounted, axial-lead transient voltage suppressors. Physical package dimensions differ (DO-201AA, P600, and R-6 respectively), requiring verification of PCB footprint compatibility.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS codes (8541.10.0080).

Q: Can I use the LCE9.0A in an application designed for the 5KP9.0A?

A: The LCE9.0A has lower peak pulse current (97A vs. 331.2A) and power dissipation (1500W vs. 5000W) ratings. Use is permissible only if the application's transient energy does not exceed the LCE9.0A specifications. Voltage protection characteristics are identical.