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P6KE47A Equivalent & Substitute Parts
Part Overview
The P6KE47A is a unidirectional Zener transient voltage suppressor (TVS) diode in DO-15 axial package configuration. Designed for general-purpose transient voltage suppression applications, this component provides 40.2V reverse standoff voltage with 64.8V maximum clamping voltage and 9.3A peak pulse current capability. The original Diodes Incorporated P6KE47A-T is classified as obsolete, necessitating identification of functionally equivalent active alternatives from current manufacturers including Littelfuse Inc., Taiwan Semiconductor Corporation, Vishay, Comchip Technology, and Micro Commercial Co.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 40.2 | V |
| Voltage - Breakdown (Min) | 44.7 | V |
| Voltage - Clamping (Max) @ Ipp | 64.8 | V |
| Current - Peak Pulse (10/1000µs) | 9.3 | A |
| Power - Peak Pulse | 600 | W |
| Operating Temperature Range | -55 to 175 | °C (TJ) |
| Mounting Type | Through Hole | - |
| Package / Case | DO-204AC, DO-15, Axial | - |
| Type | Zener | - |
| Unidirectional Channels | 1 | - |
| RoHS Status | ROHS3 Compliant | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | - |
Substitute Part Grouping Explanation
Substitution eligibility for P6KE47A TVS diodes is determined by strict equivalence across the following electrical and mechanical parameters:
Critical Matching Parameters:
- Voltage - Reverse Standoff (Typ): 40.2V
- Voltage - Breakdown (Min): 44.7V (tolerance: ±0.15V acceptable)
- Voltage - Clamping (Max) @ Ipp: 64.8V
- Current - Peak Pulse (10/1000µs): 9.3A (tolerance: ±0.1A acceptable)
- Power - Peak Pulse: 600W
- Package / Case: DO-204AC, DO-15, Axial (through-hole configuration)
- Mounting Type: Through Hole
- Type: Zener, Unidirectional
Compliance Parameters:
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
All identified substitute parts maintain electrical parameter equivalence within specified tolerances and share identical mechanical packaging. Variations in manufacturer, product status (active vs. obsolete), packaging format (bulk, cut tape, tape & reel), and operating temperature range do not affect functional substitutability in circuit applications.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | VWM (V) | VBR (V) | VC (V) | Ipp (A) | Ppk (W) | Toper (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|
| P6KE47A-T | Diodes Incorporated | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-15 | Obsolete |
| P6KE47A-B | Littelfuse Inc. | 40.2 | 44.7 | 64.8 | 9.4 | 600 | -55 to 175 | DO-204AC (DO-15) | Active |
| P6KE47A | Taiwan Semiconductor Corporation | 40.2 | 44.7 | 64.8 | 9.3 | 600 | - | DO-15 | Active |
| P6KE47A-AP | Micro Commercial Co | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-15 | Active |
| P6KE47A-BP | Micro Commercial Co | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-15 | Active |
| P6KE47A-E3/54 | Vishay General Semiconductor - Diodes Division | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-204AC (DO-15) | Active |
| P6KE47AHE3/54 | Vishay General Semiconductor - Diodes Division | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-204AC (DO-15) | Active |
| P6KE47A-G | Comchip Technology | 40.2 | 44.65 | 64.8 | 9.26 | 600 | -55 to 150 | DO-15 | Active |
| P6KE47A-TP | Micro Commercial Co | 40.2 | 44.7 | 64.8 | 9.3 | 600 | -55 to 175 | DO-15 | Active |
Engineering Selection Recommendations
All identified substitute parts are classified as active products with current manufacturing status, eliminating supply chain risk associated with the obsolete P6KE47A-T. Selection among equivalent alternatives should be based on the following criteria:
Primary Selection Criteria:
Littelfuse P6KE47A-B and Vishay P6KE47A-E3/54 represent optimal substitutes, offering full electrical equivalence, ROHS3 compliance, and established supply availability. Both manufacturers maintain active product lines with documented specifications.
Micro Commercial Co variants (P6KE47A-AP, P6KE47A-BP, P6KE47A-TP) provide equivalent electrical performance with automotive-grade qualification and telecom application certification. These options are suitable for applications requiring extended temperature operation to 175°C.
Taiwan Semiconductor Corporation P6KE47A offers maximum inventory availability (300,100 units) with equivalent electrical specifications, though operating temperature range is not specified in available documentation.
Vishay P6KE47AHE3/54 includes AEC-Q101 automotive qualification and tape & reel packaging, appropriate for high-volume automated assembly processes requiring automotive-grade components.
Comchip Technology P6KE47A-G maintains electrical equivalence within acceptable tolerances (VBR 44.65V, Ipp 9.26A) with operating temperature range limited to -55 to 150°C, suitable for applications not requiring full 175°C upper temperature operation.
Compliance Considerations:
All substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with original design specifications.
Frequently Asked Questions (FAQ)
Q: Can P6KE47A-B from Littelfuse directly replace the obsolete P6KE47A-T from Diodes Incorporated?
A: Yes. P6KE47A-B maintains identical electrical parameters (40.2V standoff, 64.8V clamping, 9.4A peak pulse) and DO-204AC (DO-15) package configuration. The 0.1A increase in peak pulse current (9.4A vs. 9.3A) falls within acceptable engineering tolerance and represents improved performance margin.
Q: What is the difference between P6KE47A-E3/54 and P6KE47AHE3/54?
A: Both parts are manufactured by Vishay with identical electrical specifications. P6KE47A-E3/54 is supplied in cut tape (CT) packaging, while P6KE47AHE3/54 is supplied in tape & reel (TR) format. P6KE47AHE3/54 includes AEC-Q101 automotive qualification. Selection depends on assembly process requirements and volume.
Q: Is the Taiwan Semiconductor Corporation P6KE47A suitable for applications requiring -55 to 175°C operation?
A: Operating temperature range is not specified in available documentation for this part. Applications requiring confirmed -55 to 175°C operation should select alternatives with documented temperature specifications, such as Littelfuse P6KE47A-B, Vishay P6KE47A-E3/54, or Micro Commercial Co variants.
Q: Can Comchip Technology P6KE47A-G be used in place of P6KE47A-T?
A: P6KE47A-G is electrically equivalent within acceptable tolerances (VBR 44.65V vs. 44.7V, Ipp 9.26A vs. 9.3A). However, operating temperature range is limited to -55 to 150°C. This part is suitable only for applications not requiring operation above 150°C.
Q: What packaging formats are available for P6KE47A equivalents?
A: Substitute parts are available in bulk, cut tape (CT), tape & reel (TR), and tape & box (TB) packaging formats. All maintain DO-15 axial through-hole package configuration. Selection should align with manufacturing assembly process capabilities and volume requirements.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All identified substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, ensuring compatibility with environmental and regulatory requirements.
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