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Taiwan Semiconductor Corporation P6KE20CH
- Part No.:
- P6KE20CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20CH.pdf
- Description:
- 600W, 20V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,091
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Product details
Overview
P6KE20CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in DC power rails and signal lines. It features a 20V nominal breakdown voltage (VBR min/max: 18.0–22.0V), 16.2V standoff voltage (VWM), 21.0A peak surge current (IPP), and clamps to ≤29.1V at rated surge - protecting downstream ICs against ESD, lightning-induced surges, and inductive switching transients in automotive and industrial control modules.
For engineers reviewing the P6KE20CH datasheet, P6KE20CH pinout, P6KE20CH application, or P6KE20CH equivalent, key selection criteria include its AEC-Q101 qualification, DO-15 package compatibility with high-reliability PCB layouts, low dynamic impedance (<1Ω typical), sub-1ps response time from 0V to VBR, and <1μA reverse leakage above 10V - critical for low-power sensor interfaces and always-on automotive subsystems.
Technical Context
The P6KE20CH operates as a silicon avalanche diode with unidirectional polarity, optimized for fast clamping of transient energy per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump). Its junction temperature range spans −55°C to +175°C, enabling deployment in under-hood ECUs and motor drive inverters where thermal derating must be managed per Fig.2 pulse derating curves.
It delivers 600W non-repetitive peak pulse power at the standard 10/1000μs waveform, with clamping voltage tightly controlled at 29.1V (max) at 21.0A IPP - ensuring robust protection margin below the absolute maximum ratings of common 24V-rated microcontrollers and CAN transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16.2 V - Maximum continuous reverse voltage before significant leakage; sets operating margin above 12–15V system rails. |
| VBR (Breakdown Voltage) | 18.0–22.0 V at 1 mA - Confirmed avalanche initiation range; ensures reliable triggering before downstream component damage thresholds. |
| VC @ IPP (Clamping Voltage) | ≤29.1 V at 21.0 A - Peak voltage seen by protected circuit during worst-case 10/1000μs surge; maintains safe margin below 30V logic/IC limits. |
| PPK (Peak Pulse Power) | 600 W - Energy-handling capacity per single transient; supports automotive load-dump and industrial surge immunity standards. |
| IR @ VWM (Reverse Leakage) | <1 μA - Negligible standby current draw; preserves battery life in always-on vehicle modules and IoT edge sensors. |
| Response Time | <1.0 ps - Time from 0 V to VBR onset; faster than most ESD events, enabling effective suppression before IC latch-up. |
| TJ max | +175 °C - Enables placement near heat sources (e.g., power MOSFETs, motor drivers) without thermal shutdown risk. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with UL 94V-0 flammability rating and pure tin-plated leads compliant with J-STD-002 solderability. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference node | Connected to ground or low-impedance return path; forms clamping loop with cathode to protect upstream rail. |
| Cathode (banded end) | High-side transient sink | Connected to protected line (e.g., 12V supply, LIN bus); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control, body electronics, and ADAS power domains. |
| 600W surge capability (10/1000μs) | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 requirements without external series impedance. |
| Low dynamic impedance | Ensures minimal voltage overshoot during fast transients - critical for protecting 3.3V/5V logic interfacing with higher-voltage domains. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and automotive ELV directive; suitable for global Tier 1 supply chain traceability. |
| Junction capacitance <100 pF | Preserves signal integrity on data lines (e.g., LIN, CAN FD stubs) without bandwidth degradation or EMI resonance. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12V power input and LIN bus pins in BCMs exposed to load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping device placed directly at connector entry point to shunt transients before reaching MCU and LIN transceiver. Use Value: Clamps to ≤29.1V within <1ps, maintaining safe operating voltage for 3.3V/5V microcontrollers and LIN PHYs rated to 40V absolute max. |
Use Scenario: Safeguarding 24V digital input channels on programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Front-end TVS on optocoupler input side, absorbing repetitive 10/1000μs transients up to 600W without degradation. Use Value: Withstands ≥1000 surges at rated power per JEDEC JESD22-A114, ensuring long-term reliability in factory automation environments. |
| LED Driver Power Supply Input | Smart Sensor Node Power Rail |
Use Scenario: Clamping input surge on constant-current LED drivers used in street lighting and automotive headlights. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bulk capacitor and bridge rectifier output to absorb AC line transients and inductive spikes. Use Value: 175°C max junction temperature allows direct mounting on metal-core PCBs near heat-generating LED drivers without thermal derating penalties. |
Use Scenario: Protecting ultra-low-power IoT sensor nodes powered by coin cells or energy harvesters from ESD events during handling or installation. IC Role / Device Role / Timing Role: Standby-mode TVS on VDD rail, leveraging <1μA leakage to avoid draining finite energy storage. Use Value: Sub-1ps response prevents ESD-induced latch-up in ARM Cortex-M0+ MCUs and MEMS accelerometers with 2.5V I/O tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Bidirectional configuration; 20V symmetric breakdown; slightly higher clamping voltage (32.4V vs. 29.1V). | Suitable for AC-coupled or bidirectional signal lines (e.g., RS-485), not optimal for unidirectional DC rail protection where lower VC matters. | Select SMBJ20A only if bidirectional surge immunity is required; otherwise P6KE20CH offers tighter clamping and AEC-Q101 assurance. |
| 1.5KE20A | Same DO-15 package but 1500W rating; higher IPP (65A) and VC (34.6V); no AEC-Q101 qualification. | Used in non-automotive industrial power supplies where higher surge margin is prioritized over automotive qualification and low VC. | Choose 1.5KE20A for cost-sensitive 1500W applications; P6KE20CH is preferred where AEC-Q101 compliance and precise clamping are mandatory. |
Compared with SMBJ20A and 1.5KE20A, the P6KE20CH provides the lowest clamping voltage (29.1V) among DO-15 20V TVS diodes while delivering automotive-grade reliability - making it optimal for space-constrained, thermally demanding, and safety-critical 12V/24V system protection.
Availability
P6KE20CH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC inputs, LED driver front-ends, and smart sensor power rails requiring stable component supply across multi-year production cycles.
Supply support for P6KE20CH 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, serving automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in harsh automotive and industrial environments - emphasizing low clamping voltage, thermal stability, and long-term surge endurance.
FAQ
What is the polarity configuration of the P6KE20CH?
The P6KE20CH is a unidirectional transient voltage suppressor diode, with cathode identified by a band marking on the DO-15 package. It conducts surge current only when the cathode is at higher potential than the anode - making it suitable for DC rail clamping where polarity is fixed. This differs from bidirectional variants like P6KE20CA, which protect AC or reversible signal paths.
Does the P6KE20CH meet automotive qualification standards?
Yes, the P6KE20CH is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H". This certification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating its suitability for under-hood automotive applications such as engine control units and body domain controllers.
What is the maximum clamping voltage of the P6KE20CH at rated surge current?
The P6KE20CH has a maximum clamping voltage (VC) of 29.1 V at 21.0 A peak pulse current (IPP), measured under the standard 10/1000μs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events, ensuring compatibility with 30V-tolerant ICs and providing a 1.5× safety margin over its 20V nominal breakdown rating.
How does the P6KE20CH compare to the P6KE20A in terms of electrical performance?
The P6KE20CH and P6KE20A share identical electrical specifications - including VBR (19.0–21.0 V), VWM (17.1 V), VC (27.7 V), and IPP (22.0 A) - but differ in qualification: P6KE20CH carries AEC-Q101 certification and uses the "H" suffix, whereas P6KE20A is commercial-grade. Both use DO-15 packaging and have the same thermal rating (TJ max = 175°C).
Can the P6KE20CH be used in surface-mount designs?
No, the P6KE20CH is packaged exclusively in the through-hole DO-204AC (DO-15) axial lead format and is not available in SMD variants such as SMA or SMC. For surface-mount alternatives with comparable 20V clamping, consider the SMAJ20A or SMCJ20A families - though these lack AEC-Q101 qualification unless explicitly specified.
P6KE20CH 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):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 21A
- 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)
P6KE20CH FAQ
1.How can I place an order for P6KE20CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20CH 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 P6KE20CH reliable?
The price and inventory of P6KE20CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20CH is usually 5 days.
3.What payment methods are accepted for P6KE20CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20CH?
P6KE20CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20CH 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 P6KE20CH?
For technical support, including P6KE20CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20CH requirements.
6.How does Aetrix verify that P6KE20CH is sourced from the original manufacturer or authorized distributors?
All P6KE20CH 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 P6KE20CH meets industry standards.
7.What is the process for return or replacement of P6KE20CH?
All P6KE20CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20CH, 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 P6KE20CH part is unused and in its original packaging.
Return procedure for P6KE20CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20CH Tags
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