5KP5.0A-B Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The 5KP5.0A-B is a unidirectional Zener-type transient voltage suppressor diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This through-hole component operates across a wide temperature range (-55°C to 175°C) and is ROHS3 compliant. The part is currently active in production with 930 units in stock. Substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the TVS diode category.

Substiute Parts

5KP5.0A-B

Littelfuse Inc.In Stock: 10045KP5.0A-B Datasheet

Current PartRFQ

5KP5.0A

Littelfuse Inc.In Stock: 14525KP5.0A Datasheet

MFR RecommendedRFQ

1N5907

Microchip TechnologyIn Stock: 13081N5907 Datasheet

MFR RecommendedRFQ

5KP5.0A-TP

Micro Commercial CoIn Stock: 11945KP5.0A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP5.0A-B is determined by the following critical electrical parameters:

• Voltage - Reverse Standoff (Typ): 5V
• Voltage - Breakdown (Min): 6.4V minimum
• Voltage - Clamping (Max) @ Ipp: 9.2V maximum
• Current - Peak Pulse (10/1000µs): minimum 120A
• Power - Peak Pulse: minimum 1500W
• Mounting Type: Through Hole
• Type: Zener, Unidirectional

Parts meeting these criteria are classified as direct substitutes. Variations in packaging format (Bulk vs. Cut Tape) and supplier device package designation do not affect electrical equivalency. Parts with identical voltage ratings and peak pulse specifications are functionally interchangeable in general-purpose protection circuits.

Parameter Comparison

Engineering Selection Recommendations

5KP5.0A (Littelfuse Inc.) - Preferred substitute. Identical electrical specifications and operating temperature range. ROHS3 compliant. Differs only in packaging format (Cut Tape vs. Bulk), which does not affect circuit performance. Higher inventory availability (1381 units).

5KP5.0A-TP (Micro Commercial Co) - Acceptable substitute. Matches voltage ratings and power dissipation. ROHS3 compliant. Package designation differs (R-6 vs. P600), but both are axial through-hole formats. Peak pulse current not specified in documentation; verify mechanical fit before deployment.

1N5907 (Microchip Technology) - Limited substitution. Meets reverse standoff voltage requirement (5V) and general-purpose application criteria. However, peak pulse current (120A) and power dissipation (1500W) are significantly lower than the main part. RoHS non-compliant status may conflict with regulatory requirements. Use only in applications with reduced transient energy requirements.

Frequently Asked Questions (FAQ)

Q: Can 5KP5.0A replace 5KP5.0A-B directly? A: Yes. Both parts share identical electrical specifications (5V standoff, 9.2V clamping, 554.3A peak pulse). The difference is packaging format (Cut Tape vs. Bulk), which does not affect circuit functionality.

Q: What is the difference between P600 and R-6 packages? A: Both are axial through-hole packages for TVS diodes. P600 and R-6 are different supplier designations for similar form factors. Mechanical compatibility depends on PCB hole spacing and lead diameter specifications not provided in this reference.

Q: Why is 1N5907 listed as a substitute if its peak pulse current is lower? A: The 1N5907 meets the core voltage protection criteria (5V standoff, 8.5V clamping) for general-purpose applications. However, its 120A peak pulse rating is substantially lower than the 554.3A rating of the main part. Selection depends on actual transient energy levels in the target circuit.

Q: Does packaging format (Bulk vs. Cut Tape) affect electrical performance? A: No. Bulk and Cut Tape are distribution formats only. Electrical characteristics remain identical regardless of packaging method.

Q: Are all substitutes ROHS3 compliant? A: No. The 1N5907 is RoHS non-compliant. If regulatory compliance is required, use only 5KP5.0A or 5KP5.0A-TP.

Q: What is the operating temperature range difference between substitutes? A: The 1N5907 operates from -65°C to 175°C, providing 10°C lower minimum temperature capability compared to the main part and other substitutes (-55°C to 175°C). This difference is relevant only for applications requiring operation below -55°C.