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P6KE24A-T Equivalent & Substitute Parts
Part Overview
The P6KE24A-T is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection applications. This component features a 20.5V reverse standoff voltage, 33.2V maximum clamping voltage, and 18A peak pulse current capability in a through-hole DO-15 package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Reverse Standoff (Typ) | 20.5V |
| Voltage - Breakdown (Min) | 22.8V |
| Voltage - Clamping (Max) @ Ipp | 33.2V |
| Current - Peak Pulse (10/1000µs) | 18A |
| Power - Peak Pulse | 600W |
| Type | Zener |
| Unidirectional Channels | 1 |
| Mounting Type | Through Hole |
| Package / Case | DO-204AC, DO-15, Axial |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the P6KE24A-T is determined by strict electrical and mechanical parameter matching:
Critical Matching Parameters:
- Voltage - Reverse Standoff (Typ): 20.5V
- Voltage - Breakdown (Min): 22.8V
- Voltage - Clamping (Max) @ Ipp: 33.2V
- Current - Peak Pulse (10/1000µs): 18A minimum
- Power - Peak Pulse: 600W
- Type: Zener, Unidirectional
- Mounting Type: Through Hole
- Package / Case: DO-15 or DO-204AC compatible
All identified substitutes meet these electrical specifications. Variations in peak pulse current (18A to 19A) and operating temperature ranges remain within acceptable tolerance for the P6KE24 series. Packaging format differences (bulk, cut tape) do not affect electrical compatibility but may influence procurement and assembly workflows.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Product Status | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Package / Case | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| P6KE24A-T | Diodes Incorporated | Obsolete | 20.5V | 22.8V | 33.2V | 18A | 600W | DO-15 | ROHS3 Compliant |
| P6KE24A TR PBFREE | Central Semiconductor Corp | Active | 20.5V | 22.8V | 33.2V | 18A | 600W | DO-15 | ROHS3 Compliant |
| P6KE24A-AP | Micro Commercial Co | Active | 20.5V | 22.8V | 33.2V | 18A | 600W | DO-15 | Not Specified |
| P6KE24A-BP | Micro Commercial Co | Active | 20.5V | 22.8V | 33.2V | 18A | 600W | DO-15 | Not Specified |
| P6KE24A-TP | Micro Commercial Co | Active | 20.5V | 22.8V | 33.2V | 18A | 600W | DO-15 | ROHS3 Compliant |
| P6KE24AE3/TR13 | Microsemi Corporation | Active | 20.5V | 22.8V | 33.2V | 18A | 600W | Axial | ROHS3 Compliant |
| P6KE24A | Fairchild Semiconductor | Active | 20.5V | 22.8V | 33.2V | 19A | 600W | DO-15 | Not Specified |
| P6KE24A-B | Littelfuse Inc. | Active | 20.5V | 22.8V | 33.2V | 18.4A | 600W | DO-15 | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
P6KE24A-TP (Micro Commercial Co) and P6KE24A TR PBFREE (Central Semiconductor Corp) are the preferred direct replacements. Both maintain identical electrical specifications, active product status, ROHS3 compliance, and DO-15 packaging. P6KE24A-TP offers the highest inventory availability (2,578 pcs) in cut tape format, suitable for automated assembly. P6KE24A TR PBFREE provides 3,321 pcs in stock with lead-free certification.
Secondary Substitutes (Acceptable with Packaging Considerations):
P6KE24A-B (Littelfuse Inc.) and P6KE24A (Fairchild Semiconductor) are electrically equivalent with active status and ROHS3 compliance. P6KE24A-B specifies 18.4A peak pulse current, marginally above the 18A minimum. Both are available in bulk packaging format.
Alternative Package Format:
P6KE24AE3/TR13 (Microsemi Corporation) provides electrical equivalence in axial through-hole format instead of DO-15. This substitution applies only when axial package geometry is acceptable for the application.
Avoid:
P6KE24A-AP and P6KE24A-BP (Micro Commercial Co) lack specified RoHS compliance documentation, introducing regulatory uncertainty for applications requiring ROHS3 certification.
Frequently Asked Questions (FAQ)
Q: Can P6KE24A-TP directly replace P6KE24A-T in existing designs?
A: Yes. P6KE24A-TP matches all critical electrical parameters (20.5V standoff, 33.2V clamping, 18A peak pulse) and packaging (DO-15 through-hole). Both are ROHS3 compliant. The primary difference is product status: P6KE24A-TP is active while P6KE24A-T is obsolete.
Q: What is the difference between cut tape and bulk packaging?
A: Cut tape (CT) packaging provides components on continuous tape suitable for automated pick-and-place assembly. Bulk packaging supplies loose components. Electrical performance is identical; packaging choice depends on assembly process requirements.
Q: Is the 19A peak pulse current specification of P6KE24A (Fairchild) acceptable as a substitute?
A: Yes. The 19A specification exceeds the 18A minimum requirement of P6KE24A-T. This represents improved performance margin and is electrically compatible.
Q: Why is P6KE24AE3/TR13 listed as a substitute if it uses axial packaging?
A: P6KE24AE3/TR13 maintains identical electrical specifications and is electrically interchangeable. However, axial package geometry differs from DO-15, requiring mechanical redesign of PCB footprints and component placement. Use this substitute only when axial format is acceptable.
Q: Are there compliance differences between substitute options?
A: P6KE24A TR PBFREE, P6KE24A-TP, P6KE24A-B, and P6KE24AE3/TR13 all specify ROHS3 compliance matching the original P6KE24A-T. P6KE24A-AP and P6KE24A-BP do not specify RoHS status. For regulated applications, select substitutes with documented ROHS3 compliance.
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