P4KE100AHE3/54 Equivalent & Substitute Parts

Part Overview

The P4KE100AHE3/54 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates in the 85.5V reverse standoff voltage range and provides transient protection with a 137V maximum clamping voltage. The part is actively produced, AEC-Q101 qualified for automotive applications, and ROHS3 compliant. Equivalent and substitute parts are identified when electrical parameters and mechanical compatibility align within specified tolerances for the same application category.

Substiute Parts

P4KE100AHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 888P4KE100AHE3/54 Datasheet

Current PartRFQ

P4KE100A

Taiwan Semiconductor CorporationIn Stock: 914P4KE100A Datasheet

DirectRFQ

P6KE100A

Fairchild SemiconductorIn Stock: 18965P6KE100A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE100AHE3/54 are identified based on alignment of critical electrical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, and peak pulse current rating. Mechanical compatibility is determined by package type and mounting configuration. The substitution logic follows these criteria:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 85.5V to 100V range
• Voltage - Clamping (Max) @ Ipp: 137V (fixed)
• Mounting Type: Through Hole
• Package Compatibility: DO-204AL (DO-41) or DO-204AC (DO-15)
• Type: Zener, Unidirectional

Parts meeting these parameters are classified as direct equivalents or functional substitutes based on current rating and thermal specifications.

Parameter Comparison

Engineering Selection Recommendations

P4KE100A (Taiwan Semiconductor Corporation): This part maintains identical electrical specifications to the main part with matching reverse standoff voltage (85.5V), breakdown voltage (95V), and clamping voltage (137V). Peak pulse current is marginally higher at 3A versus 2.9A. Operating temperature range extends to 175°C. Package compatibility is identical (DO-204AL, DO-41). Product status is active with ROHS3 compliance. This part functions as a direct equivalent.

P6KE100A (Fairchild Semiconductor): This part operates at a higher reverse standoff voltage of 100V and delivers increased peak pulse current (4.4A) and power dissipation (600W). Clamping voltage remains at 137V. Package differs as DO-204AC (DO-15) instead of DO-204AL (DO-41). Operating temperature range is -55°C to 150°C. Product status is active. This part is suitable for applications requiring higher current handling and voltage margin, with consideration for package footprint differences.

Frequently Asked Questions (FAQ)

Q: Can P4KE100A replace P4KE100AHE3/54 in all applications? A: Yes. The P4KE100A maintains identical voltage specifications (85.5V standoff, 137V clamping) and package configuration (DO-204AL, DO-41). Peak pulse current is slightly higher (3A vs 2.9A), which is compatible. Both parts are ROHS3 compliant and actively produced.

Q: What is the difference between P4KE100A and P6KE100A? A: The P6KE100A operates at a higher reverse standoff voltage (100V vs 85.5V) and provides greater peak pulse current (4.4A vs 3A) and power dissipation (600W vs 400W). The package differs: P6KE100A uses DO-204AC (DO-15) while P4KE100A uses DO-204AL (DO-41). These are not pin-compatible without PCB modification.

Q: Is P6KE100A suitable as a substitute for P4KE100AHE3/54? A: P6KE100A is functionally compatible for transient voltage suppression at the same clamping voltage (137V). However, the higher standoff voltage (100V) and different package (DO-15 vs DO-41) require verification of circuit requirements and PCB layout compatibility before substitution.

Q: Are all substitute parts automotive qualified? A: The main part P4KE100AHE3/54 carries AEC-Q101 qualification. P4KE100A is actively produced and ROHS3 compliant. P6KE100A is actively produced. Automotive qualification status for substitute parts should be verified against specific application requirements.

Q: What is the impact of different operating temperature ranges? A: P4KE100AHE3/54 and P4KE100A both operate to 175°C junction temperature. P6KE100A operates to 150°C. For applications requiring operation above 150°C, P4KE100A is the appropriate choice.