LCE58A Transient Voltage Suppressor Equivalent & Substitute Parts

Part Overview

The LCE58A is an active Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This unidirectional zener diode operates with a 58V reverse standoff voltage and provides 93.6V maximum clamping voltage at peak pulse current. The device is packaged in DO-201AA through-hole format and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges.

Substiute Parts

LCE58A

Littelfuse Inc.In Stock: 754LCE58A Datasheet

Current PartRFQ

5KP58A

LittelfuseIn Stock: 44115KP58A Datasheet

MFR RecommendedRFQ

1.5KE56A-TP

Micro Commercial CoIn Stock: 21441.5KE56A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LCE58A are qualified based on the following electrical and mechanical criteria:

Primary Substitution Parameters:

• Voltage - Reverse Standoff (Typ): 58V nominal
• Voltage - Clamping (Max) @ Ipp: 93.6V nominal
• Unidirectional zener topology
• Through-hole axial mounting configuration
• RoHS3 compliance and REACH unaffected status

Acceptable Variation Ranges:

• Reverse standoff voltage within the same voltage class (58V series)
• Clamping voltage tolerance as specified by manufacturer
• Peak pulse current and power ratings may exceed the original specification
• Operating temperature range may vary within industrial standards
• Package variants within DO-201 family are acceptable

Two substitute parts meet these criteria: the 5KP58A (Littelfuse) and the 1.5KE56A-TP (Micro Commercial Co).

Parameter Comparison

Engineering Selection Recommendations

5KP58A (Littelfuse): This part maintains identical voltage specifications (58V reverse standoff, 93.6V clamping) to the LCE58A while providing enhanced current handling (54.5A vs. 16A) and power dissipation (5000W vs. 1500W). Both devices are manufactured by Littelfuse, carry ROHS3 compliance, and are rated for -55°C to 175°C operation. The P600 package is mechanically compatible with axial through-hole mounting. This substitute is suitable for applications requiring higher transient energy absorption within the same voltage protection class.

1.5KE56A-TP (Micro Commercial Co): This part operates at a lower reverse standoff voltage (47.8V) and clamping voltage (77V) compared to the LCE58A. While maintaining 1500W peak pulse power and RoHS3 compliance, the voltage parameters place this device in a different protection class. This substitute is applicable only when circuit requirements permit operation at the lower voltage specification.

All substitute parts maintain active product status and full regulatory compliance (RoHS3, REACH unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can the 5KP58A directly replace the LCE58A in all applications?

A: The 5KP58A maintains identical voltage specifications and is manufactured by the same supplier. Mechanical compatibility exists for through-hole axial mounting. The enhanced current and power ratings do not create incompatibility. Verify PCB layout accommodates the P600 package dimensions.

Q: Is the 1.5KE56A-TP a suitable substitute for the LCE58A?

A: The 1.5KE56A-TP operates at lower voltage levels (47.8V standoff, 77V clamping vs. 58V and 93.6V respectively). Substitution is valid only when circuit design specifications permit operation at these reduced voltage thresholds. Direct replacement without circuit analysis is not recommended.

Q: What are the package differences between substitute parts?

A: The LCE58A uses DO-201AA packaging. The 5KP58A uses P600 packaging, and the 1.5KE56A-TP uses DO-201AE packaging. All three are axial through-hole formats with compatible lead spacing for standard PCB footprints, though physical dimensions may vary slightly.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The LCE58A, 5KP58A, and 1.5KE56A-TP all carry RoHS3 compliance certification and are REACH unaffected.

Q: What is the operating temperature difference between the main part and substitutes?

A: The LCE58A operates from -65°C to 175°C. Both substitute parts operate from -55°C to 175°C. The upper temperature limit is identical; the lower limit differs by 10°C. For applications requiring operation below -55°C, the LCE58A is required.

Q: How do peak pulse current ratings affect substitution?

A: The LCE58A is rated for 16A peak pulse current. The 5KP58A handles 54.5A. Higher current ratings indicate greater transient energy absorption capability. The 1.5KE56A-TP does not specify peak pulse current. Substitution with higher-rated devices does not create circuit incompatibility when voltage specifications match.