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Taiwan Semiconductor Corporation P6KE56CH
- Part No.:
- P6KE56CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE56CH.pdf
- Description:
- 600W, 56V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,217
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Product details
Overview
P6KE56CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 56 V, clamps transients to ≤80.5 V at 7.8 A peak surge current, and delivers fast response (<1.0 ps from 0 V to VBR), low dynamic impedance, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P6KE56CH datasheet, P6KE56CH pinout, P6KE56CH application, or P6KE56CH equivalent, key selection criteria include its DO-204AC (DO-15) package compatibility, 45.4 V stand-off voltage, <1 μA reverse leakage above 10 V, and suitability for ESD/inductive switching transient suppression in automotive body electronics, industrial PLC I/O modules, and LED driver input stages.
Technical Context
The P6KE56CH operates as a unidirectional avalanche diode with a single-die DO-204AC construction, optimized for clamping high-energy transients per the 10/1000 μs waveform standard. Its junction temperature range spans −55 °C to +175 °C, and it maintains stable VBR with a temperature coefficient of 0.103 %/°C.
Designed for placement across protected nodes and ground, it exhibits low clamping ratio (VC/VBR ≈ 1.43), minimal capacitance (<100 pF at 0 V), and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements - critical for under-hood automotive and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 50.4 V / 61.6 V at 1 mA test current - defines reliable conduction onset window for overvoltage detection |
| VWM | 45.4 V - maximum continuous DC or RMS operating voltage before leakage rises significantly |
| VC @ IPP | 80.5 V at 7.8 A peak pulse - clamping voltage limiting stress on downstream ICs during surge events |
| PPK | 600 W - peak non-repetitive surge power handling capability per 10/1000 μs waveform |
| IR @ VWM | <1 μA - ensures negligible standby power loss and signal integrity in high-impedance circuits |
| TJ max | +175 °C - enables operation in high-temperature engine bay or industrial enclosure environments |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with tin-plated leads, compatible with wave and reflow soldering |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Connected to protected line (e.g., +12 V rail) | Forward-biased during normal operation; conducts only during reverse overvoltage |
| Cathode | Connected to system ground or reference | Marked by band; defines unidirectional clamping direction and ensures correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements |
| 600 W surge rating (10/1000 μs) | Withstands high-energy load dump and inductive kick events without degradation |
| Clamping voltage ≤80.5 V | Protects 5 V–48 V logic and power ICs (e.g., microcontrollers, gate drivers) from destructive overvoltage |
| Response time <1.0 ps | Engages before most semiconductor junctions can be damaged by fast-rising ESD or EFT transients |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental regulations for global manufacturing and end-of-life handling |
Applications
| Automotive Lighting Systems | Industrial PLC Digital I/O |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers from load dump and alternator ripple in headlamp modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and IC supply pin to clamp transients before they reach sensitive inputs. Use Value: Prevents latch-up or permanent damage to 5 V/12 V logic interfaces while maintaining low standby leakage (<1 μA) to avoid battery drain. | Use Scenario: Safeguarding 24 V digital input circuits against inductive switching spikes from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input traces, absorbing energy before optocoupler or Schmitt trigger inputs. Use Value: Enables reliable operation in harsh factory environments where >1 kV transients occur regularly, with no need for additional RC snubbers. |
| LED Driver Input Stage | Power Supply Input Protection |
Use Scenario: Front-end protection for constant-current LED drivers subjected to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: First-line defense on DC input, shunting surge current away from upstream rectifiers and downstream PWM controllers. Use Value: Maintains consistent LED brightness and lifetime by preventing transient-induced gate oxide stress in MOSFETs and ICs. | Use Scenario: Input-stage surge suppression for 48 V telecom and industrial SMPS front-ends exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to limit voltage overshoot during AC line transients. Use Value: Reduces required input capacitor derating and eliminates need for multi-stage MOV+TVS designs in space-constrained layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A | DO-214AA package; 58 V nominal VBR; 600 W rating; bidirectional configuration unless specified 'A' suffix | Surface-mount footprint; higher thermal resistance than DO-15; requires PCB layout revision | Select when board space is constrained and SMT assembly is mandatory; verify unidirectional variant (SMBJ58A) matches polarity needs |
| 1.5KE56C | Same DO-204AC package; 56 V nominal; 1500 W rating; higher clamping voltage (84.5 V) and larger physical size | Higher surge margin but less precise clamping; suited for legacy designs with margin-heavy protection schemes | Choose for legacy replacement where existing footprint allows and higher clamping voltage is acceptable for protected ICs |
Compared with SMBJ58A and 1.5KE56C, the P6KE56CH offers AEC-Q101 qualification, tighter VBR tolerance (±10%), and lower clamping voltage - making it optimal for modern automotive and high-reliability industrial systems where precision and qualification matter.
Availability
P6KE56CH is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O protection, LED driver input stages, and 48 V power supply input protection requiring stable component supply and long-term lifecycle support.
Supply support for P6KE56CH 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 signal conditioning devices.
The P6KE series belongs to TSC's automotive-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in demanding environments - including engine control units, ADAS sensors, and industrial automation systems.
FAQ
What is the clamping voltage of the P6KE56CH and how does it protect downstream components?
The P6KE56CH clamps transients to a maximum of 80.5 V at 7.8 A peak surge current (10/1000 μs waveform). This limits voltage stress on connected ICs - such as microcontrollers or gate drivers rated for ≤100 V - preventing dielectric breakdown or latch-up. Its low dynamic impedance ensures rapid energy diversion to ground, preserving signal integrity and functional safety in real-time systems.
Is the P6KE56CH suitable for automotive applications, and what qualification does it hold?
Yes, the P6KE56CH is AEC-Q101 qualified - verified for automotive use across temperature, humidity, mechanical shock, and accelerated life testing. The "H" suffix explicitly denotes this qualification, making it appropriate for under-hood and body electronics where reliability under thermal cycling and vibration is critical. It is not intended for airbag or safety-critical ASIL-D subsystems.
What is the difference between P6KE56CH and P6KE56C?
The P6KE56CH includes AEC-Q101 qualification and green (halogen-free) molding compound per IEC 61249-2-21, whereas P6KE56C lacks automotive qualification and may use standard epoxy. Both share identical electrical specs (VBR, VC, PPK) and DO-204AC packaging, but only P6KE56CH is approved for automotive production programs requiring formal component validation.
Can the P6KE56CH be used in bidirectional configurations?
No - the P6KE56CH is unidirectional, indicated by the absence of "CA" or "C" suffix. Bidirectional variants (e.g., P6KE56CA) have symmetrical breakdown in both polarities and are marked without cathode band. Using P6KE56CH in reverse-biased mode risks permanent failure due to lack of reverse avalanche capability.
What is the maximum steady-state power dissipation for the P6KE56CH at elevated ambient temperatures?
The P6KE56CH has a steady-state power dissipation (PD) of 5 W at TA = 75 °C with 9.5 mm lead lengths on 5 × 5 mm copper pads. Derating follows Fig.2 in the datasheet: power capability decreases linearly to zero at +175 °C junction temperature, requiring thermal design consideration in enclosed or high-ambient environments.
P6KE56CH 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):
- 45.4V
- Voltage - Breakdown (Min):
- 50.4V
- Voltage - Clamping (Max) @ Ipp:
- 80.5V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
P6KE56CH FAQ
1.How can I place an order for P6KE56CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE56CH 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 P6KE56CH reliable?
The price and inventory of P6KE56CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE56CH is usually 5 days.
3.What payment methods are accepted for P6KE56CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE56CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE56CH?
P6KE56CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE56CH 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 P6KE56CH?
For technical support, including P6KE56CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE56CH requirements.
6.How does Aetrix verify that P6KE56CH is sourced from the original manufacturer or authorized distributors?
All P6KE56CH 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 P6KE56CH meets industry standards.
7.What is the process for return or replacement of P6KE56CH?
All P6KE56CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE56CH, 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 P6KE56CH part is unused and in its original packaging.
Return procedure for P6KE56CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE56CH Tags
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