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Taiwan Semiconductor Corporation P6KE22
- Part No.:
- P6KE22
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE22.pdf
- Description:
- 600W, 22V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,867
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Product details
Overview
P6KE22 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 22 V, clamping voltage of 31.9 V at 19 A peak surge current, and stand-off voltage of 17.8 V - enabling robust ESD and lightning-induced surge suppression in automotive and industrial control circuits.
For engineers reviewing the P6KE22 datasheet, P6KE22 pinout, P6KE22 application, or P6KE22 equivalent, this device is selected for high-energy transient immunity where fast response (<1.0 ps), low dynamic impedance, and UL recognition (E-326243) are critical in 12–24 V system protection designs.
Technical Context
The P6KE22 operates as a silicon avalanche diode with unidirectional polarity, activated when reverse voltage exceeds its 19.8–24.2 V breakdown range (tested at 1 mA). Its 10/1000 µs surge rating of 600 W defines energy-handling capability under standardized lightning-surge waveforms per ANSI/IEEE C62.35.
Junction temperature range spans –55 °C to +175 °C, supporting operation in under-hood automotive environments. The device exhibits a temperature coefficient of VBR of 0.092 %/°C and typical reverse leakage <1 µA at 17.8 V, ensuring stable clamping performance across thermal extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 22 V - defines rated clamping threshold for 12–24 V DC systems |
| Breakdown Voltage (VBR) | 19.8–24.2 V @ 1 mA - ensures reliable turn-on before downstream IC damage |
| Stand-off Voltage (VWM) | 17.8 V - maximum continuous reverse voltage without conduction |
| Clamping Voltage (VC) | 31.9 V @ 19 A peak surge - limits protected circuit voltage during 10/1000 µs transients |
| Peak Pulse Power (PPK) | 600 W - sustains single high-energy surges per IEC 61000-4-5 Level 4 |
| Response Time | <1.0 ps - enables sub-nanosecond reaction to ESD events (IEC 61000-4-2) |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.400 g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) package with axial leads: cathode indicated by band-marked end; anode is unmarked lead. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry terminal in forward bias; grounded reference in unidirectional TVS configuration | Connected to system ground or low-impedance return path to shunt surge current safely |
| Cathode (banded lead) | Transient voltage sensing and clamping node | Connected to protected line (e.g., 24 V rail); conducts avalanche current when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available (P6KE22H) | Validated for automotive under-hood use with extended temperature cycling and humidity testing |
| UL Recognized File #E-326243 | Confirms compliance with UL 497B for telecom and industrial surge protection applications |
| Low dynamic impedance | Enables tighter clamping window (VC – VBR = 7.7 V) vs. competing 600 W TVS devices |
| RoHS and halogen-free (IEC 61249-2-21) | Meets global environmental mandates without compromising surge endurance or thermal stability |
| 175 °C max junction temperature | Supports placement near heat-generating components in compact industrial enclosures |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V sensor supply lines from load-dump transients and ISO 7637-2 pulse 5a. IC Role / Device Role / Timing Role: Primary clamping element placed between 24 V rail and ground, upstream of LDOs and microcontrollers. Use Value: Limits voltage to ≤31.9 V during 100 V/100 ms load dump, preventing latch-up or gate oxide rupture in downstream ASICs. |
Use Scenario: Safeguarding 24 V digital input channels against EFT bursts (IEC 61000-4-4) and contact bounce spikes. IC Role / Device Role / Timing Role: Front-end transient absorber on optocoupler input side, before series current-limiting resistor. Use Value: Clamps 4 kV EFT pulses within 1 ps, preserving signal integrity and eliminating false triggering in isolated inputs. |
| LED Driver Power Supply Input | RS-485 Transceiver Bus Line |
Use Scenario: Suppressing inductive kickback from relay coils and motor drivers feeding constant-current LED arrays. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to absorb 600 W inductive energy spikes. Use Value: Prevents overvoltage stress on primary-side MOSFETs and secondary-side rectifiers during coil de-energization. |
Use Scenario: Protecting RS-485 transceivers (e.g., MAX1487) from cable discharge events and lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS on each bus line (A/B) referenced to local ground, with 17.8 V VWM avoiding false triggering. Use Value: Maintains signal margin above 12 V common-mode range while clamping ±31.9 V differential transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A (Diodes Inc.) | Surface-mount SMB package; 22 V bidirectional; 600 W rating; VC = 35.5 V @ 17.1 A | Requires PCB redesign for SMT layout; suited for space-constrained consumer electronics | Select when board real estate is limited and reflow assembly is preferred over through-hole |
| 1.5KE22A (ON Semiconductor) | Same DO-15 package; 1.5 kW rating; higher VC = 33.2 V @ 45.2 A; slower response (~1 ns) | Over-spec'd for 600 W needs; introduces higher clamping voltage and thermal mass | Choose only if legacy 1.5KE footprint compatibility is mandatory and surge margin must exceed 600 W |
Compared with SMBJ22A and 1.5KE22A, the P6KE22 offers optimal balance of through-hole manufacturability, precise 31.9 V clamping, and AEC-Q101 qualification path - making it ideal for cost-sensitive, thermally demanding 24 V industrial and automotive modules where reliability trumps miniaturization.
Availability
P6KE22 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and LED driver surge immunity requiring stable component supply and long-term lifecycle support.
Supply support for P6KE22 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 was engineered specifically for high-reliability transient suppression in harsh-environment applications - emphasizing UL recognition, AEC-Q101 qualification readiness, and consistent 600 W surge performance across voltage grades.
FAQ
What is the polarity configuration of the P6KE22?
The P6KE22 is a unidirectional TVS diode, with cathode identified by a band-marked lead. It conducts only during reverse-biased overvoltage events on the cathode side, making it suitable for DC rail protection where polarity is fixed. This differs from bidirectional variants like P6KE22CA, which protect AC or floating signals.
Does the P6KE22 meet automotive qualification standards?
The base P6KE22 is not AEC-Q101 qualified, but the P6KE22H variant - explicitly designated in TSC's ordering code - is AEC-Q101 qualified and tested for temperature cycling, humidity, and mechanical shock. Engineers specifying automotive use must select P6KE22H to ensure compliance with vehicle-grade reliability requirements.
What is the maximum peak surge current the P6KE22 can handle?
The P6KE22 supports a maximum peak surge current (IPP) of 19.0 A under the standard 10/1000 µs waveform, corresponding to its 600 W peak pulse power rating. This value is measured at TA = 25 °C and derates linearly above that ambient temperature per TSC's Fig.2 derating curve.
How does the clamping voltage of P6KE22 compare to its breakdown voltage?
The P6KE22 has a minimum breakdown voltage (VBR) of 19.8 V and a maximum clamping voltage (VC) of 31.9 V at 19 A. This 12.1 V differential reflects its dynamic impedance - a key design parameter indicating how tightly it regulates voltage during surge events, directly impacting protected IC survivability.
Can P6KE22 be used in bidirectional signal line protection?
No - the P6KE22 is unidirectional and unsuitable for AC or differential signal lines without external circuitry. For bidirectional protection, engineers must select the P6KE22CA variant, which features symmetrical breakdown in both directions and identical 600 W rating, but distinct marking and test conditions per TSC's bipolar specifications.
P6KE22 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 19A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE22 FAQ
1.How can I place an order for P6KE22 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE22 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 P6KE22 reliable?
The price and inventory of P6KE22 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE22 is usually 5 days.
3.What payment methods are accepted for P6KE22?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE22 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE22?
P6KE22 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE22 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 P6KE22?
For technical support, including P6KE22 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE22 requirements.
6.How does Aetrix verify that P6KE22 is sourced from the original manufacturer or authorized distributors?
All P6KE22 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 P6KE22 meets industry standards.
7.What is the process for return or replacement of P6KE22?
All P6KE22 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE22, 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 P6KE22 part is unused and in its original packaging.
Return procedure for P6KE22:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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