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Taiwan Semiconductor Corporation P6KE20C
- Part No.:
- P6KE20C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20C.pdf
- Description:
- 600W, 20V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,744
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Product details
Overview
P6KE20C 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 stand-off voltage (VWM), 21.0A peak surge current (IPP), and clamps to ≤29.1V at rated surge, protecting downstream ICs in automotive and industrial control systems.
For engineers reviewing the P6KE20C datasheet, P6KE20C pinout, P6KE20C application, or P6KE20C equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, VWM derating for temperature and tolerance, unidirectional polarity marking, DO-15 mechanical fit, and AEC-Q101 qualification status (P6KE20CH only).
Technical Context
The P6KE20C operates as a silicon avalanche diode with fast response (<1.0 ps from 0 V to VBR), low dynamic impedance, and stable breakdown under repetitive transients. Its unidirectional configuration provides asymmetric conduction-blocking reverse voltage up to VWM (16.2V) and clamping positive surges above VBR.
It complies with ANSI/IEEE C62.35 for surge testing and delivers 600W peak pulse power at the standardized 10/1000μs waveform. Junction temperature range spans −55°C to +175°C, supporting under-hood and high-ambient industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 18.0 V / 22.0 V - Ensures reliable avalanche initiation within defined tolerance band at 1 mA test current |
| VWM | 16.2 V - Maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPP | 29.1 V - Clamped voltage at 21.0 A surge, defining worst-case stress on protected circuitry |
| IPP | 21.0 A - Peak surge current survivable per 10/1000μs waveform without degradation |
| PPK | 600 W - Non-repetitive pulse power handling capability, critical for lightning/EFT immunity |
| TJ(max) | +175 °C - Enables operation in high-temperature environments such as engine control units |
| Package | DO-204AC (DO-15) - Standard axial-leaded through-hole package with tin-plated leads per J-STD-002 |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line; initiates clamping when voltage exceeds VBR in reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 29.1 V max at 21.0 A ensures robust protection margin below typical 3.3V/5V/12V IC absolute maximum ratings |
| Response speed | <1.0 ps turn-on enables suppression of nanosecond-scale ESD and EFT transients before system damage occurs |
| Leakage control | <1 μA at 16.2 V minimizes standby power loss and avoids false triggering in low-current sensor circuits |
| Surge robustness | 600 W peak power at 10/1000μs meets IEC 61000-4-5 Level 4 requirements for industrial equipment |
| Environmental compliance | RoHS-compliant, halogen-free per IEC 61249-2-21, UL Recognized (E326243), and AEC-Q101 qualified (P6KE20CH variant) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery rail in engine control module exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of LDOs and microcontrollers to limit transient voltage to safe levels. Use Value: Clamps 60V+ load dump spikes to ≤29.1V, preventing latch-up or gate oxide rupture in 3.3V/5V logic. | Use Scenario: 4–20mA current loop transmitter connected to field wiring subject to induced surges and ESD contact discharge. IC Role / Device Role / Timing Role: Input-side TVS on analog front-end, shunting surge energy before precision op-amps and ADC inputs. Use Value: Sub-30V clamping preserves signal integrity and avoids saturation of instrumentation amplifiers with ±15V supplies. |
| LED Driver Overvoltage Clamp | PLC Digital Input Protection |
Use Scenario: Constant-current LED driver board powered from 24V DC supply, vulnerable to inductive kickback from relay coils or solenoids. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to absorb stored inductive energy during switch-off. Use Value: Limits flyback voltage to 29.1V, protecting MOSFET drain-source junction and enabling use of lower-voltage-rated FETs. | Use Scenario: 24V digital input channel on programmable logic controller receiving signals from external sensors via long cables in factory floor environments. IC Role / Device Role / Timing Role: First-line defense against EFT bursts (IEC 61000-4-4) and surge coupling onto field wiring. Use Value: Withstands 40A+ surge currents per IEC 61000-4-5, maintaining input logic state integrity during EMC testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ20A | Same DO-214AC (SMA) package; 20V VBR (19.0–21.0V), 32.4V VC @ 19.4A, 400W PPK | Lower power rating and higher clamping voltage reduce margin for high-energy transients | Select when space-constrained SMT layout required and surge energy is limited to <400W |
| ON Semiconductor 1.5KE20A | DO-201AD package; identical 20V VBR (19.0–21.0V), 29.1V VC @ 21.0A, same 600W rating but larger body and longer leads | Higher thermal mass supports extended surge duty cycles; less suitable for compact PCBs | Select when enhanced thermal endurance is prioritized over footprint size |
Compared with P6KE20C, SMAJ20A trades clamping performance and surge capacity for surface-mount compatibility, while 1.5KE20A retains identical electrical specs but requires more board area and different mounting process-making P6KE20C optimal for cost-sensitive, high-volume through-hole designs needing proven 600W robustness in DO-15 form factor.
Availability
P6KE20C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, LED driver overvoltage clamp, and PLC digital input protection requiring stable component supply and full traceability.
Supply support for P6KE20C 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 transient voltage suppressor product line, engineered for high-reliability clamping in automotive, industrial, and consumer power systems where robustness against ISO 7637-2 and IEC 61000-4-x threats is mandatory.
FAQ
What is the polarity configuration of the P6KE20C?
The P6KE20C is a unidirectional TVS diode, with the cathode identified by a band on the DO-15 package. It blocks reverse voltage up to 16.2V (VWM) and clamps positive transients on the cathode side. This configuration is essential for DC rail protection where polarity is fixed-unlike bidirectional variants (e.g., P6KE20CA) used in AC or floating signal lines. Always orient the banded end toward the protected line.
Does the P6KE20C meet AEC-Q101 qualification?
The base P6KE20C is not AEC-Q101 qualified; only the P6KE20CH variant carries that certification. The "H" suffix denotes AEC-Q101 qualification per stress test conditions including temperature cycling, humidity bias, and accelerated life testing. For automotive under-hood applications requiring qualification evidence, specify P6KE20CH-not P6KE20C-to ensure compliance with TS 16949 and automotive reliability standards.
What is the maximum clamping voltage of the P6KE20C at its rated surge current?
The P6KE20C clamps to a maximum of 29.1V at its rated peak pulse current of 21.0A (10/1000μs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on the protected circuit during worst-case surge events. Designers must verify that this clamping voltage remains below the absolute maximum rating of downstream components, with appropriate safety margin.
How does the P6KE20C compare to the P6KE20A in terms of electrical parameters?
The P6KE20C has a VBR range of 18.0–22.0V and VWM of 16.2V, while the P6KE20A offers tighter VBR (19.0–21.0V) and higher VWM (17.1V). Both share identical PPK (600W), VC (29.1V/27.7V respectively), and package (DO-15). The "A" suffix indicates tighter parameter tolerances-making P6KE20A preferable where precise voltage thresholds are critical, whereas P6KE20C provides broader design flexibility at standard grade cost.
Can the P6KE20C be used in bidirectional signal line protection?
No-the P6KE20C is strictly unidirectional and unsuitable for bidirectional signal lines such as RS-485 or USB data pairs. For those applications, use the bidirectional variant P6KE20CA, which provides symmetrical clamping in both directions with matched VBR (18.0–22.0V) and VC (29.1V) characteristics. Substituting P6KE20C in a bidirectional role risks failure during negative-going transients due to lack of reverse avalanche capability.
P6KE20C 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE20C FAQ
1.How can I place an order for P6KE20C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20C 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 P6KE20C reliable?
The price and inventory of P6KE20C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20C is usually 5 days.
3.What payment methods are accepted for P6KE20C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20C?
P6KE20C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20C 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 P6KE20C?
For technical support, including P6KE20C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20C requirements.
6.How does Aetrix verify that P6KE20C is sourced from the original manufacturer or authorized distributors?
All P6KE20C 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 P6KE20C meets industry standards.
7.What is the process for return or replacement of P6KE20C?
All P6KE20C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20C, 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 P6KE20C part is unused and in its original packaging.
Return procedure for P6KE20C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20C Tags
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