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Taiwan Semiconductor Corporation P4KE220A
- Part No.:
- P4KE220A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE220A.pdf
- Description:
- TVS DIODE 185VWM 328VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,768
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Product details
Overview
P4KE220A from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 220V nominal standoff voltage, 209–231V breakdown range at 1mA test current, 185V working stand-off voltage, 1.30A peak pulse current (10/1000μs), and clamps transients to ≤328V. It is widely deployed in industrial power supplies and automotive body control modules to safeguard microcontrollers and interface ICs.
For engineers reviewing the P4KE220A datasheet, P4KE220A pinout, P4KE220A application, or P4KE220A equivalent, key selection criteria include its DO-41 package compatibility, low leakage (<1μA at 185V), AEC-Q101 qualification option (P4KE220AH), thermal robustness (TJ max = 175°C), and precise clamping performance under standardized 10/1000μs surge conditions.
Technical Context
The P4KE220A operates as a silicon avalanche diode with sharp reverse-breakdown characteristics, enabling fast clamping response (<1.0ps from 0V to VBR). Its unidirectional polarity-marked by a cathode band-ensures asymmetric conduction: low forward voltage (~3.5V at 25A) during fault conditions and high-impedance blocking below VWM.
Rated for 400W peak pulse power per ANSI/IEEE C62.35, it sustains repetitive surges only within derated limits defined by ambient temperature and PCB copper area. The device's 0.108%/°C VBR temperature coefficient ensures predictable voltage drift across its –55°C to +175°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 185 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage. |
| VBR min/max @ IT=1mA | 209 V / 231 V - Verified breakdown onset range; defines minimum clamping threshold under standardized test. |
| VC @ IPPM | ≤328 V - Clamped voltage at 1.30A peak pulse current (10/1000μs); determines maximum stress on protected circuitry. |
| ID @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; ensures minimal power loss and signal integrity in standby. |
| PPK | 400 W - Peak pulse power handling per single 10/1000μs transient; validates compliance with IEC 61000-4-5 Level 4. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with tin-plated leads, UL 94V-0 molding, and JESD201 Class 2 whisker resistance. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, cylindrical glass-passivated body, cathode indicated by a painted band on one end. Leads are pure tin-plated and solderable per J-STD-002. Weight ≈0.300g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference terminal | Connected to ground or low-voltage rail; forms return path during clamping event. |
| Cathode (banded end) | High-side surge input terminal | Connected to protected line (e.g., 24V supply rail); avalanche conduction initiates here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | P4KE220AH meets automotive-grade reliability requirements including temperature cycling, HAST, and mechanical shock testing. |
| Low clamping ratio (VC/VBR) | 328V / 209V ≈ 1.57 - Tight ratio minimizes overvoltage overshoot during surge events, reducing risk to downstream ICs. |
| Fast avalanche response | <1.0 ps rise time from 0V to VBR - Enables suppression before sensitive logic or analog circuits experience damaging voltage excursions. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - Supports environmentally compliant manufacturing and end-of-life recycling. |
| UL recognition | UL File #E326243 - Validates safety compliance for use in end equipment requiring UL certification (e.g., industrial controls). |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 24V DC input stage of programmable logic controllers (PLCs) against load dump and inductive switching spikes. IC Role / Device Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and microcontroller power inputs. Use Value: Limits transient voltage to ≤328V, preventing latch-up or permanent damage to 3.3V/5V LDOs and MCU I/O pins rated for 36V absolute maximum. |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers from battery line transients during jump-start or alternator load dump. IC Role / Device Role: Unidirectional TVS placed between VBAT and GND near connector entry point. Use Value: Withstands 400W surges while maintaining <1μA leakage at 185V, ensuring no impact on sleep-mode current budget in always-on BCM nodes. |
| LED Streetlight Driver Input Stage | Telecom Remote Power Feeder Protection |
|
Use Scenario: Shielding constant-current LED driver ICs from lightning-induced surges on AC/DC front-end rectified output (200–300V DC bus). IC Role / Device Role: Secondary clamping device after MOV, providing precise voltage limiting where MOV tolerance is too wide. Use Value: Clamps at 328V with ±5% VBR tolerance, enabling tighter design margins than generic 270V MOVs and reducing need for oversized capacitors. |
Use Scenario: Protecting PoE-powered remote units (e.g., security cameras) connected via long outdoor cables susceptible to EFT and induced surges. IC Role / Device Role: DC-side TVS on 48V power feed line, positioned before DC-DC isolation stage. Use Value: 175°C TJ rating allows reliable operation inside sealed outdoor enclosures; DO-41 form factor enables manual rework and field replacement. |
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 P4KE220A | Identical electrical specs (VWM=185V, VC≤328V, PPK=400W), same DO-41 package, UL E326243 recognized. | No AEC-Q101 variant offered; not qualified for automotive under-hood use. | Select when automotive qualification is unnecessary and dual-sourcing from Littelfuse is required for supply chain resilience. |
| ON Semiconductor 1.5KE220A | Higher PPK (1500W), larger DO-201 package (not DO-41), VC=328V at 4.3A (vs. 1.3A), VWM=185V, same VBR range. | Requires PCB layout change due to larger footprint and higher surge capacity; suited for higher-energy threat environments. | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space permits DO-201 mounting. |
Compared with P4KE220A, the Littelfuse variant offers identical protection in identical packaging but lacks automotive qualification, while the ON Semiconductor 1.5KE220A delivers 3.3× higher surge energy handling at the cost of larger size and different thermal profile-making it suitable for infrastructure-grade rather than space-constrained embedded designs.
Availability
P4KE220A is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, LED driver input stages, and telecom remote power feeder protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE220A 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualification capability.
The P4KE series was engineered for cost-effective, high-reliability transient suppression in automotive, industrial, and lighting applications-emphasizing tight VBR tolerance, low leakage, and robust surge endurance in standard DO-41 packaging.
FAQ
What is the maximum clamping voltage of the P4KE220A under standard 10/1000μs surge conditions?
The P4KE220A clamps to a maximum of 328 V when subjected to its rated peak pulse current of 1.30 A (10/1000μs waveform). This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by downstream circuitry during a standardized transient event. Designers must ensure that all protected components have voltage ratings exceeding this clamping level.
Is the P4KE220A suitable for automotive applications?
The base P4KE220A is not AEC-Q101 qualified; however, the P4KE220AH variant-identical in all electrical and mechanical specifications-is fully AEC-Q101 certified for automotive use. Engineers specifying P4KE220A for automotive systems must select the "H" suffix version to meet reliability and qualification requirements for under-hood and body electronics.
How does the P4KE220A differ from the P4KE220 (non-A) variant?
The P4KE220A has tighter breakdown voltage tolerance (209–231 V vs. 198–242 V for P4KE220) and lower maximum clamping voltage (328 V vs. 344 V), resulting from enhanced process control. Both share the same DO-41 package, 400W rating, and 185V working voltage-but the "A" suffix denotes improved parametric consistency critical for high-precision protection schemes.
What is the reverse leakage current specification for the P4KE220A at its working stand-off voltage?
The P4KE220A exhibits a maximum reverse leakage current (ID) of 1 μA when biased at its rated working stand-off voltage of 185 V. This ultra-low leakage ensures negligible power loss in standby mode and preserves signal integrity in high-impedance sensing or communication lines where even nanoamp-level currents could affect accuracy.
Can the P4KE220A be used in bidirectional configurations?
No-the P4KE220A is strictly unidirectional and marked with a cathode band. For bidirectional protection, Taiwan Semiconductor offers the P4KE220CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and is electrically characterized in both directions. Using P4KE220A in reverse-biased configurations risks permanent breakdown and failure.
P4KE220A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE220A FAQ
1.How can I place an order for P4KE220A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE220A 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 P4KE220A reliable?
The price and inventory of P4KE220A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE220A is usually 5 days.
3.What payment methods are accepted for P4KE220A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE220A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE220A?
P4KE220A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE220A 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 P4KE220A?
For technical support, including P4KE220A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE220A requirements.
6.How does Aetrix verify that P4KE220A is sourced from the original manufacturer or authorized distributors?
All P4KE220A 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 P4KE220A meets industry standards.
7.What is the process for return or replacement of P4KE220A?
All P4KE220A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE220A, 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 P4KE220A part is unused and in its original packaging.
Return procedure for P4KE220A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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