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Diodes Incorporated P6KE47CA-T
- Part No.:
- P6KE47CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CA-T.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:3,932
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Product details
Overview
P6KE47CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 40.2V reverse standoff voltage (VRWM), 44.7V minimum breakdown voltage (VBR), 64.8V maximum clamping voltage (VC) at 9.3A peak pulse current, and DO-15 package with glass-passivated junction - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the P6KE47CA-T datasheet, P6KE47CA-T pinout, P6KE47CA-T application, or P6KE47CA-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, unidirectional vs. bidirectional polarity requirements, 1.0ms 600W pulse handling capability, and DO-15 lead-form compatibility with legacy PCB layouts.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling suppression of positive and negative transients without external polarity coordination. Its glass-passivated die ensures stable VBR tolerance (±5%) and low leakage (<5µA at VRWM), critical for low-power standby circuits.
The device delivers 64.8V clamping at 9.3A (1.0ms 8/20µs waveform), with thermal resistance of 75°C/W (junction-to-ambient) and 15°C/W (junction-to-lead), supporting reliable operation up to +175°C junction temperature under pulsed stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms non-repetitive, defines surge energy handling per IEC 61000-4-5) |
| Reverse Standoff Voltage | 40.2V (maximum continuous DC or RMS voltage before significant leakage) |
| Breakdown Voltage | 44.7V min (guaranteed conduction onset at 1.0mA test current) |
| Clamping Voltage | 64.8V max at 9.3A IPP (voltage seen by protected circuit during worst-case surge) |
| Package | DO-15 (axial-leaded, 0.4g weight, UL 94V-0 molded plastic, lead-free/RoHS compliant) |
| Operating Temperature | -55°C to +175°C (enables use in under-hood automotive and industrial environments) |
| Leakage Current | ≤5.0µA at 40.2V (minimizes standby power loss in battery-backed systems) |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon junction, cathode band not marked on bidirectional version (P6KE47CA); leads are solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bidirectional terminals - either lead serves as anode or cathode depending on transient polarity; no polarity marking required |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4kV line-to-line, 2kV line-to-earth) surge immunity testing |
| Glass-passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity |
| Bidirectional configuration | Eliminates need for polarity-aware layout; protects AC-coupled or floating signal paths |
| Fast response time (<1.0ps) | Clamps transients before downstream ICs experience damaging overvoltage |
| RoHS-compliant lead finish | Enables compatibility with Pb-free reflow processes and meets EU environmental directives |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 48V DC input rail in programmable logic controller (PLC) power stage exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input. Use Value: Limits transient excursions to ≤64.8V, preventing damage to 75V-rated input capacitors and MOSFET gate drivers. |
Use Scenario: LIN bus interface in door module subjected to ISO 7637-2 Pulse 1 (inductive kickback) and Pulse 2a (load dump). IC Role / Device Role / Timing Role: Bidirectional TVS placed across LIN data line and ground. Use Value: Clamps negative transients to ≥–64.8V and positive to ≤+64.8V, preserving LIN transceiver integrity without polarity constraints. |
| Telecom DC Feeder Protection | Renewable Energy Inverter Control Board |
Use Scenario: -48V telecom power feed line entering remote radio unit enclosure, vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protection device mounted at board edge connector. Use Value: Absorbs 600W surge energy within 1.0ms, reducing downstream MOV and secondary TVS stress. |
Use Scenario: 24V auxiliary supply rail in solar inverter control board, subject to EFT/burst noise from relay switching. IC Role / Device Role / Timing Role: Secondary protection after bulk filtering, guarding microcontroller I/O and sensor interfaces. Use Value: Sub-5µA leakage preserves low-power sleep mode current budget while maintaining 40.2V operating margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45CA | DO-214AA package; 45V VRWM; 64.8V VC at 9.2A; 600W rating | Surface-mount footprint replaces through-hole DO-15; requires PCB redesign | Select when space-constrained designs demand SMT assembly and thermal pad access |
| 1.5KE47CA | DO-201AD package; same 40.2V VRWM and 64.8V VC; 1500W rating (1.0ms) | Higher surge capacity but larger body and higher thermal mass; less suitable for tight lead spacing | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 or repeated surge exposure is expected |
Compared with P6KE47CA-T, SMBJ45CA offers identical clamping performance in a smaller SMT form factor but sacrifices mechanical robustness and lead-form compatibility, while 1.5KE47CA provides 2.5× higher pulse power at the cost of increased size and mounting complexity.
Availability
P6KE47CA-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom DC feeder systems, and renewable energy inverter control boards requiring stable component supply despite its obsolete status.
Supply support for P6KE47CA-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions.
The P6KE series belongs to Diodes' transient voltage suppressor product line, engineered for cost-effective, high-energy surge protection in legacy and new-design power and signal interfaces across automotive, industrial, and communications markets.
FAQ
Is P6KE47CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE47CA-T (document DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). However, Aetrix Electronics maintains limited legacy stock with full traceability and supports last-time buy programs for ongoing production continuity.
What is the difference between P6KE47A-T and P6KE47CA-T?
P6KE47A-T is unidirectional (cathode-banded, suppresses only positive transients), while P6KE47CA-T is bidirectional (no cathode band, suppresses both polarities). Their electrical specs - VRWM (40.2V), VBR (44.7V min), and VC (64.8V) - are identical under rated test conditions.
Can P6KE47CA-T be used in place of a Zener diode for voltage regulation?
No - this device is optimized for transient suppression, not steady-state regulation. Its VBR tolerance (±5%), high dynamic impedance above VBR, and lack of specified regulation current make it unsuitable for precision voltage reference or linear regulation applications.
Does P6KE47CA-T meet AEC-Q200 requirements for automotive use?
Per Diodes' documentation, the P6KE series is not AEC-Q200 qualified. For automotive-grade TVS devices, Diodes recommends the AEC-Q200-qualified D3V3Mxx series or AP7xxx family - contact Diodes or Aetrix for qualified alternatives meeting PPAP and IATF 16949 requirements.
P6KE47CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE47CA-T FAQ
1.How can I place an order for P6KE47CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CA-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6KE47CA-T reliable?
The price and inventory of P6KE47CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CA-T is usually 5 days.
3.What payment methods are accepted for P6KE47CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CA-T?
P6KE47CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CA-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6KE47CA-T?
For technical support, including P6KE47CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CA-T requirements.
6.How does Aetrix verify that P6KE47CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE47CA-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6KE47CA-T meets industry standards.
7.What is the process for return or replacement of P6KE47CA-T?
All P6KE47CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CA-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6KE47CA-T part is unused and in its original packaging.
Return procedure for P6KE47CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE47CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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