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Taiwan Semiconductor Corporation P6KE20A
- Part No.:
- P6KE20A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20A.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:986
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Product details
Overview
P6KE20A 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 nominal breakdown voltage of 20 V, clamps transients to ≤27.7 V at 22 A peak surge current, and delivers fast response (<1.0 ps from 0 V to VBR), with stand-off voltage of 17.1 V and leakage <1 µA at rated VWM. It is widely deployed in automotive body electronics and industrial power supply input stages.
For engineers reviewing the P6KE20A datasheet, P6KE20A pinout, P6KE20A application, or P6KE20A equivalent, key selection criteria include its DO-204AC (DO-15) package compatibility, unidirectional polarity marking, 27.7 V clamping performance under 10/1000 µs surge, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The P6KE20A operates as a silicon avalanche diode optimized for high-energy transient suppression. Its unidirectional configuration enables asymmetric clamping-blocking reverse voltage up to 17.1 V while conducting forward surges above 19.0 V (VBR min) with low dynamic impedance.
It conforms to ANSI/IEEE C62.35 for surge waveform compliance and supports 10/1000 µs impulse testing per IEC 61000-4-5. Junction temperature range spans −55 °C to +175 °C, and thermal derating begins above 25 °C ambient per Fig.2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.0 V / 21.0 V - defines reliable avalanche onset window; ensures consistent clamping initiation across production lots |
| VWM | 17.1 V - maximum continuous reverse operating voltage; sets safe DC rail margin before leakage rises |
| VC @ IPP | 27.7 V @ 22 A - peak clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level |
| PPK | 600 W - non-repetitive surge power rating; defines single-event energy absorption capability |
| IR @ VWM | <1 µA - ultra-low reverse leakage; minimizes standby power loss in battery-powered systems |
| TJ max | +175 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with tin-plated leads; compatible with wave soldering per J-STD-002 |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Dimensions comply with JEDEC DO-15 outline; weight ≈0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal | Connects to system ground or low-side return path; conducts surge current toward ground during overvoltage events |
| Cathode (banded end) | Reverse-blocking terminal | Connects to protected line (e.g., 12 V rail); blocks normal operation voltage but avalanches when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body control units per stress test requirements |
| 600 W 10/1000 µs surge rating | Withstands IEC 61000-4-5 Level 4 surges without degradation; supports robust front-end protection in industrial PLCs |
| Clamping voltage ≤27.7 V | Ensures downstream ICs (e.g., microcontrollers, CAN transceivers) remain below absolute maximum ratings during transients |
| Response time <1.0 ps | Activates faster than most ESD events; prevents voltage overshoot before protection ICs or filters react |
| RoHS & halogen-free | Complies with IEC 61249-2-21; suitable for consumer, medical, and export-regulated electronics manufacturing |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point before LDO or DC-DC converter. Use Value: Limits transient peaks to ≤27.7 V, preventing damage to 30 V-rated regulators and MCU I/O pins. |
Use Scenario: 24 V industrial sensor node powered from shared field bus with inductive switching noise. IC Role / Device Role / Timing Role: Standoff protector on VCC rail; absorbs repetitive 100 ns–1 µs spikes from relay coils and solenoids. Use Value: Maintains <1 µA leakage at 17.1 V, avoiding false resets in low-power sleep modes. |
| LED Driver Surge Suppression | RS-485 Transceiver Line Protection |
Use Scenario: Constant-current LED driver in streetlight fixture subjected to lightning-induced surges on AC input rectifier output. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor to shunt surge energy before it reaches driver IC. Use Value: 600 W rating handles multi-kV induced transients without thermal runaway; DO-15 footprint fits tight board space. |
Use Scenario: RS-485 communication port in factory automation equipment connected to long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS on A/B differential lines referenced to local ground, suppressing common-mode surges. Use Value: Fast <1.0 ps response prevents data corruption during EFT bursts (IEC 61000-4-4), preserving signal integrity. |
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 (Bourns) | Same 20 V nominal, DO-214AA package; 600 W rating; slightly higher VC = 32.4 V @ 17.8 A | Surface-mount only; requires PCB rework for through-hole legacy designs | Select SMBJ20A only if SMT assembly is available and board layout permits DO-214AA footprint |
| 1.5KE20A (ON Semiconductor) | Same DO-204AC package and 20 V rating; identical VBR/VC specs; RoHS-compliant but not AEC-Q101 qualified | Lacks automotive qualification; unsuitable for safety-critical vehicle subsystems | Choose 1.5KE20A for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated |
Compared with SMBJ20A and 1.5KE20A, the P6KE20A uniquely combines DO-204AC through-hole compatibility, AEC-Q101 qualification, and 27.7 V clamping-making it the preferred choice for automotive aftermarket modules and industrial controls requiring field-serviceable leaded components.
Availability
P6KE20A is available at Aetrix Electronics and suitable for automotive body electronics, industrial power supply inputs, LED driver surge protection, and RS-485 communication line hardening requiring stable component supply and long-term obsolescence management.
Supply support for P6KE20A 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 was developed for high-reliability transient suppression in harsh environments-targeting automotive, industrial, and lighting applications where robustness, consistency, and regulatory compliance are critical.
FAQ
What is the maximum clamping voltage of the P6KE20A under standard surge conditions?
The P6KE20A clamps to a maximum of 27.7 V when subjected to a 10/1000 µs surge waveform at 22 A peak current (IPP). This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains within safe operating limits during standardized transient events.
Is the P6KE20A suitable for automotive applications?
Yes, the P6KE20A is AEC-Q101 qualified (as indicated by the "H" suffix variant P6KE20AH), making it suitable for automotive applications such as body control modules, infotainment power supplies, and lighting drivers where reliability under temperature cycling and mechanical stress is required.
How does the P6KE20A differ from the P6KE20 (non-A) version?
The P6KE20A has tighter VBR tolerance (19.0–21.0 V) versus P6KE20 (18.0–22.0 V), lower clamping voltage (27.7 V vs. 29.1 V), and improved leakage control. These enhancements provide more predictable protection behavior in precision power rail applications.
What is the thermal derating behavior of the P6KE20A above 25°C ambient?
The P6KE20A's peak pulse power rating decreases linearly above 25°C ambient, following the derating curve in Figure 2 of the datasheet. At 75°C, its steady-state power dissipation is rated at 5 W with 9.5 mm lead length, and surge capability scales accordingly.
Can the P6KE20A be used in bidirectional configurations?
No-the P6KE20A is unidirectional only. For bidirectional protection, select the CA-suffixed variant (e.g., P6KE20CA) or use back-to-back P6KE20A diodes. The cathode band marking on the P6KE20A confirms its polarity-specific orientation.
P6KE20A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 22A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE20A FAQ
1.How can I place an order for P6KE20A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20A 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 P6KE20A reliable?
The price and inventory of P6KE20A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20A is usually 5 days.
3.What payment methods are accepted for P6KE20A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20A?
P6KE20A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20A 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 P6KE20A?
For technical support, including P6KE20A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20A requirements.
6.How does Aetrix verify that P6KE20A is sourced from the original manufacturer or authorized distributors?
All P6KE20A 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 P6KE20A meets industry standards.
7.What is the process for return or replacement of P6KE20A?
All P6KE20A units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20A, 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 P6KE20A part is unused and in its original packaging.
Return procedure for P6KE20A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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