P4KE68A-B Equivalent & Substitute Parts

Part Overview

The P4KE68A-B is an active Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage clamping applications. This unidirectional Zener diode operates with a reverse standoff voltage of 58.1V and provides peak pulse current handling of 4.5A with a maximum clamping voltage of 92V. The component is housed in a DO-204AL (DO-41) axial through-hole package and is ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or when alternative packaging formats better suit manufacturing requirements while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

P4KE68A-B

Littelfuse Inc.In Stock: 922P4KE68A-B Datasheet

Current PartRFQ

P4KE68A

Taiwan Semiconductor CorporationIn Stock: 1120P4KE68A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE68A-B are identified based on strict electrical and mechanical parameter matching within the P4KE series. The substitution criteria are:

• Identical reverse standoff voltage: 58.1V
• Identical breakdown voltage minimum: 64.6V
• Identical clamping voltage maximum: 92V
• Identical peak pulse current: 4.5A
• Identical peak pulse power: 400W
• Identical operating temperature range: -55°C ~ 175°C
• Identical package type: DO-204AL (DO-41) axial through-hole
• Identical unidirectional channel configuration: 1 channel
• Identical Zener diode type classification

Packaging format differences (Bulk versus Tape & Reel) do not affect electrical or mechanical compatibility and represent valid substitution options for different manufacturing and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

Both the P4KE68A-B (Littelfuse Inc., Bulk packaging) and P4KE68A (Taiwan Semiconductor Corporation, Tape & Reel packaging) are active products with identical electrical specifications and mechanical compatibility. Selection between these parts depends on manufacturing workflow requirements:

The P4KE68A-B in Bulk packaging is suitable for applications requiring manual component handling, small-volume assembly, or prototype development where individual component selection is performed during placement.

The P4KE68A in Tape & Reel format is optimized for automated pick-and-place assembly systems and high-volume production environments where tape-fed component feeding improves throughput and reduces manual handling.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for commercial and industrial applications. The identical operating temperature range of -55°C to 175°C supports deployment across standard industrial and extended temperature environments.

Frequently Asked Questions (FAQ)

Q: Can P4KE68A (Tape & Reel) be used as a direct replacement for P4KE68A-B (Bulk)?

A: Yes. The electrical specifications, mechanical dimensions, and performance characteristics are identical. The only difference is packaging format. Tape & Reel packaging is compatible with automated assembly equipment, while Bulk packaging is suited for manual or semi-automated processes.

Q: Are there any performance differences between Littelfuse and Taiwan Semiconductor versions?

A: No. Both manufacturers provide identical electrical parameters: 58.1V reverse standoff voltage, 92V maximum clamping voltage, and 4.5A peak pulse current. Both are ROHS3 compliant and REACH unaffected.

Q: What determines whether a part is a valid substitute for the P4KE68A-B?

A: Valid substitutes must match all electrical parameters (voltage ratings, current ratings, power dissipation), operating temperature range, package type (DO-204AL axial through-hole), and unidirectional channel configuration. Packaging format (Bulk or Tape & Reel) does not affect substitution validity.

Q: Can I use this part in applications requiring different voltage ratings?

A: No. The P4KE68A-B is specifically rated for 58.1V reverse standoff and 92V clamping voltage. Applications requiring different voltage protection must use alternative P4KE series parts with corresponding voltage ratings.

Q: Is the DO-204AL package compatible with standard through-hole PCB layouts?

A: Yes. The DO-204AL (DO-41) axial package is a standard through-hole component format compatible with conventional PCB drilling and wave soldering processes. Both the Littelfuse and Taiwan Semiconductor versions use identical package dimensions.