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Taiwan Semiconductor Corporation P6KE47CH
- Part No.:
- P6KE47CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CH.pdf
- Description:
- 600W, 47V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,527
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Product details
Overview
P6KE47CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 47V nominal breakdown voltage (VBR min/max: 42.3V–51.7V), 38.1V stand-off voltage (VWM), clamps to ≤67.8V at 9.2A peak surge current, and uses DO-204AC (DO-15) axial package for industrial power supply input protection.
For engineers reviewing the P6KE47CH datasheet, P6KE47CH pinout, P6KE47CH application, or P6KE47CH equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, 10/1000μs surge rating compliance, AEC-Q101 qualification status, and thermal derating above 25°C ambient.
Technical Context
The P6KE47CH operates as a silicon avalanche diode with fast response (<1.0ps rise time from 0V to VBR) and low dynamic impedance to limit transient energy before downstream components are stressed. Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity installation relative to DC rail direction.
It is rated for non-repetitive 600W peak pulse power per 10/1000μs waveform, with junction temperature range of –55°C to +175°C and steady-state power dissipation of 5W at 75°C with specified PCB pad layout. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 42.3–51.7V at 1mA test current - defines guaranteed avalanche initiation window under surge conditions |
| VWM | 38.1V - maximum continuous reverse voltage before leakage exceeds 1μA; sets safe operating margin below VBR |
| VC @ IPP | ≤67.8V at 9.2A - clamping voltage during 10/1000μs surge; determines worst-case stress on protected circuitry |
| PPK | 600W - peak pulse power handling capability; validates immunity to IEC 61000-4-5 Level 4 surges |
| TJ max | +175°C - maximum junction temperature; enables use in high-ambient environments like automotive engine bays |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.400g mass and tin-plated leads per J-STD-002 |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002. Weight: 0.400g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC rail reference node | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge events |
| Cathode | Protected line input | Connected to higher-potential side (e.g., +VIN); avalanches into conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, mechanical shock, and humidity testing |
| 600W 10/1000μs surge rating | Meets IEC 61000-4-5 surge immunity requirements for industrial and transportation equipment |
| Clamping voltage ≤67.8V | Provides ≥10.2V margin below typical 75V-rated MOSFET gate oxide limits and ≥27.2V margin below 95V telecom line interfaces |
| Leakage <1μA @ 38.1V | Minimizes standby power loss in battery-backed or energy-sensitive systems without compromising protection threshold |
| UL Recognized #E-326243 | Confirms safety compliance for end-equipment certification in North American markets |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) ESD Protection |
|---|---|
Use Scenario: 24V DC input stage of programmable logic controller (PLC) power module exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly across input terminals ahead of bulk capacitor and upstream of DC-DC converter. Use Value: Limits transient voltage to ≤67.8V, preventing damage to 80V-rated input FETs and enabling robust operation per IEC 61000-4-5 Level 4 (4kV line-earth). | Use Scenario: CAN transceiver power rail (VCC) in BCM subjected to ESD events per ISO 10605 (±30kV air, ±25kV contact). IC Role / Device Role / Timing Role: Secondary protection device mounted adjacent to transceiver VCC pin to shunt ESD current before it reaches sensitive analog front-end. Use Value: Sub-nanosecond response ensures clamping activation prior to transceiver latch-up, preserving communication integrity during ESD stress. |
| Telecom Line Interface Surge Suppression | LED Driver Input Transient Protection |
Use Scenario: 48V PoE-powered Ethernet switch port with integrated PHY and DC-DC conversion. IC Role / Device Role / Timing Role: First-stage TVS on 48V input rail before hot-swap controller and isolation transformer. Use Value: Withstands 600W surges while maintaining VC < 70V, protecting 100V-rated hot-swap FETs and ensuring IEEE 802.3bt compliance. | Use Scenario: Constant-current LED driver board powered from 36V industrial bus, subject to inductive switching spikes from relay-controlled loads. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver IC input pins to absorb flyback energy from nearby solenoid coils. Use Value: 9.2A peak surge current rating handles repetitive 100V/10A inductive spikes without degradation, extending driver lifetime in factory lighting systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | Surface-mount SMB package; 45V standoff; 600W rating; bidirectional configuration | Requires PCB redesign for SMT placement; supports AC-coupled or dual-rail protection not possible with unidirectional P6KE47CH | Select when space-constrained layouts or bidirectional surge paths (e.g., data lines) are required |
| 1.5KE47A | Same DO-15 package; 47V nominal; 1500W rating; higher clamping voltage (70.1V) | Higher surge capacity but larger VC margin reduces protection headroom for 60V-rated components | Select when legacy 1.5kW surge immunity (IEC 61000-4-5 Level 5) is mandated and clamping voltage margin allows |
Compared with SMBJ45A and 1.5KE47A, the P6KE47CH offers AEC-Q101 qualification and tighter clamping (67.8V vs. 70.1V), making it preferred for automotive-grade 24V/48V power rail protection where reliability and voltage margin are critical.
Availability
P6KE47CH is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom line interfaces, and LED driver designs requiring stable component supply with AEC-Q101 validation and DO-15 through-hole compatibility.
Supply support for P6KE47CH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and interface devices.
The P6KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for cost-effective, high-reliability overvoltage protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What does the 'H' suffix in P6KE47CH signify?
The 'H' suffix in P6KE47CH indicates AEC-Q101 qualification, confirming that the device has passed rigorous automotive-grade stress tests including temperature cycling, mechanical shock, and high-temperature operating life. This makes P6KE47CH suitable for under-hood and chassis-mounted applications where reliability under thermal and vibration stress is mandatory. The P6KE47CH maintains identical electrical specs to the standard P6KE47C but adds automotive validation.
Is P6KE47CH unidirectional or bidirectional?
P6KE47CH is a unidirectional TVS diode, meaning it clamps only in reverse bias-avalanching when voltage across its cathode-to-anode terminals exceeds the breakdown range (42.3–51.7V). It does not conduct in forward bias beyond normal diode drop (~1.2V). Polarity must be observed during PCB layout: cathode connects to the protected positive rail, anode to ground or return path. Bidirectional variants use 'CA' suffix (e.g., P6KE47CA).
What is the maximum clamping voltage of P6KE47CH and how is it measured?
The maximum clamping voltage of P6KE47CH is 67.8V, measured at 9.2A peak pulse current (IPP) using the standardized 10/1000μs double-exponential surge waveform. This value represents the highest voltage the device allows to appear across its terminals during a full-power transient event. It is verified per ANSI/IEEE C62.35 and guarantees protection for downstream components rated up to 75V, assuming proper PCB layout and thermal management.
Can P6KE47CH replace P6KE47C in existing designs?
Yes, P6KE47CH is a direct replacement for P6KE47C in terms of pinout, package (DO-204AC), and all electrical specifications-the only difference is AEC-Q101 qualification. No PCB or schematic changes are needed. However, if the application does not require automotive qualification, P6KE47C remains a cost-optimized alternative. For new automotive designs or those targeting extended temperature reliability, P6KE47CH is the recommended choice.
What is the thermal derating behavior of P6KE47CH above 25°C ambient?
P6KE47CH follows a linear derating curve starting at 25°C: peak pulse power drops from 600W to zero at +175°C junction temperature. At 75°C ambient, the device retains full 600W rating only if mounted on 5×5 mm copper pads per lead; otherwise, derating applies per Figure 2 in the datasheet. Steady-state power dissipation is limited to 5W at 75°C ambient with specified pad layout. Designers must verify PCB copper area and airflow to maintain TJ ≤175°C during repeated surge events.
P6KE47CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE47CH FAQ
1.How can I place an order for P6KE47CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CH 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 P6KE47CH reliable?
The price and inventory of P6KE47CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CH is usually 5 days.
3.What payment methods are accepted for P6KE47CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CH?
P6KE47CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CH 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 P6KE47CH?
For technical support, including P6KE47CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CH requirements.
6.How does Aetrix verify that P6KE47CH is sourced from the original manufacturer or authorized distributors?
All P6KE47CH 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 P6KE47CH meets industry standards.
7.What is the process for return or replacement of P6KE47CH?
All P6KE47CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CH, 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 P6KE47CH part is unused and in its original packaging.
Return procedure for P6KE47CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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