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Taiwan Semiconductor Corporation P4KE220CA
- Part No.:
- P4KE220CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE220CA.pdf
- Description:
- TVS DIODE 185VWM 328VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,122
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Product details
Overview
P4KE220CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor diode designed for high-energy ESD and surge protection in DC power rails and signal lines. It features a 220V nominal standoff voltage, 242V maximum breakdown voltage at 1mA test current, 175V working voltage, and clamps transients to ≤344V at 1.2A peak pulse current under 10/1000μs waveform - deployed in automotive lighting control modules and industrial PLC I/O protection.
For engineers reviewing the P4KE220CA datasheet, P4KE220CA pinout, P4KE220CA application, or P4KE220CA equivalent, key selection criteria include bidirectional clamping capability, DO-41 package compatibility, AEC-Q101 qualification status, low leakage (<1μA at 175V), and thermal stability up to +175°C junction temperature.
Technical Context
The P4KE220CA operates as a bidirectional avalanche diode, symmetrically clamping voltage surges in both polarities without polarity dependence. Its 1.2A peak pulse current rating (IPPM) corresponds to 400W surge dissipation at 10/1000μs, with clamping voltage tightly bounded at 344V - enabling robust protection of 200–240V AC-derived DC supplies against lightning-induced transients and inductive switching spikes.
Thermal design is constrained by a 175°C maximum junction temperature and 1W steady-state power dissipation at 75°C lead temperature. The device exhibits a +0.108%/°C VBR temperature coefficient and maintains <1μA reverse leakage above 175V, ensuring minimal standby power loss in high-impedance sensing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 175 V - Maximum continuous DC or RMS voltage the device blocks without conduction |
| VBR (min/max) | 198 / 242 V at 1 mA - Ensures reliable avalanche initiation across manufacturing spread |
| VC @ IPPM | 344 V at 1.2 A - Clamped voltage during 10/1000μs surge defines protected circuit's max stress level |
| PPK | 400 W - Peak surge energy handling capacity per single non-repetitive event |
| TJ max | +175 °C - Enables operation in under-hood automotive or high-ambient industrial environments |
| ID @ VWM | <1 μA - Negligible leakage current preserves battery life and sensor accuracy |
| Package | DO-204AL (DO-41) - Industry-standard axial-leaded package compatible with legacy through-hole assembly |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, glass-passivated silicon junction, cathode band not marked (bidirectional symmetry). Leads are pure tin-plated, solderable per J-STD-002, with 0.300g mass and UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No polarity marking required; identical clamping behavior in either direction |
| Lead 1 / Lead 2 | Current path terminals | Leads serve as mechanical attachment and thermal conduction paths; no internal differentiation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control and lighting modules |
| 400W surge rating (10/1000μs) | Withstands IEC 61000-4-5 Level 4 (4kV) surge events on 50Ω source impedance |
| Fast response time | <5 ns turn-on enables protection of high-speed analog and digital interfaces |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs compared to competing TVS devices |
| Halogen-free & RoHS compliant | Meets IPC-J-STD-709D material requirements for green electronics manufacturing |
Applications
| Automotive LED Headlamp Drivers | Industrial AC/DC Power Supply Inputs |
|---|---|
Use Scenario: Protecting buck-boost LED driver ICs from load-dump transients and alternator ripple in 24V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input rail to limit voltage excursions during ISO 7637-2 Pulse 5a events. Use Value: Maintains <344V clamping at 1.2A surge, preventing latch-up or gate oxide damage in MOSFET controllers operating near 200V DC bus. | Use Scenario: Safeguarding rectifier output and PFC controller inputs in 230VAC-derived 300–400VDC industrial SMPS. IC Role / Device Role / Timing Role: Primary surge suppression stage before bulk capacitor, absorbing line-to-line and line-to-ground transients. Use Value: Withstands 400W surges without degradation, eliminating need for parallel MOVs in space-constrained DIN-rail mounted power supplies. |
| Telecom DSL Line Interface Protection | Factory Automation I/O Module Protection |
Use Scenario: Shielding ADSL/VDSL line drivers and receivers from induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Secondary protection device after gas discharge tube (GDT), providing low-clamp refinement for fast-rising transients. Use Value: Sub-5ns response ensures clamping occurs before GDT ionization completes, reducing let-through energy to <10mJ. | Use Scenario: Protecting isolated RS-485 transceivers and analog input front-ends in PLC backplanes exposed to relay coil kickback. IC Role / Device Role / Timing Role: Bidirectional rail clamp on ±24V or ±48V auxiliary supply lines feeding field I/O circuitry. Use Value: Symmetric 198–242V breakdown eliminates polarity concerns during installation, simplifying BOM management across multiple I/O variants. |
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 SMAJ220CA | Same DO-214AC (SMA) package; 350W rating; 356V clamping at 1.14A; slightly higher leakage (5μA) | Suitable for surface-mount designs where board space is constrained and thermal pad access is available | Select when migrating from through-hole to SMT or when tighter PCB layout tolerances require smaller footprint |
| ON Semiconductor 1.5KE220CA | Higher 1500W rating; DO-201AD package; 356V clamping at 4.2A; larger thermal mass but longer lead time | Better suited for high-reliability telecom infrastructure requiring multi-event surge endurance | Choose when system-level testing demands >1000 surges at rated power or when legacy 1.5KE footprint compatibility is required |
Compared with SMAJ220CA and 1.5KE220CA, the P4KE220CA offers optimal balance of cost, DO-41 legacy compatibility, and AEC-Q101 qualification - making it preferred for automotive lighting and industrial control where through-hole assembly and automotive-grade reliability are jointly required.
Availability
P4KE220CA is available at Aetrix Electronics and suitable for automotive lighting systems, industrial AC/DC power supplies, factory automation I/O modules, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE220CA 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 - headquartered in Hsinchu, Taiwan, with ISO/TS 16949 and ISO 14001 certification.
The P4KE series targets cost-sensitive, high-volume surge protection applications across automotive, industrial, and consumer electronics - engineered for DO-41 compatibility, AEC-Q101 compliance, and robust 400W transient handling in compact axial packages.
FAQ
What is the clamping voltage of the P4KE220CA under standard 10/1000μs surge conditions?
The P4KE220CA clamps to a maximum of 344 V when subjected to its rated 1.2 A peak pulse current under the 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components like MOSFETs or controllers remain within absolute maximum ratings.
Is the P4KE220CA suitable for automotive applications?
Yes, the P4KE220CA is AEC-Q101 qualified, confirming its suitability for automotive applications including under-hood lighting control, body electronics, and infotainment power rails. Its 175°C maximum junction temperature, robust surge capability, and halogen-free construction meet stringent automotive reliability and environmental requirements - verified through accelerated lifetime testing per AEC-Q101 stress conditions.
How does the bidirectional configuration of the P4KE220CA affect circuit design?
The P4KE220CA's bidirectional structure eliminates polarity sensitivity, allowing placement across any DC rail or AC-coupled signal line without orientation constraints. This simplifies PCB layout, reduces assembly errors, and supports dual-rail protection schemes - unlike unidirectional variants such as P4KE220A, which require correct cathode alignment relative to ground reference.
What is the maximum steady-state power dissipation for the P4KE220CA?
The P4KE220CA has a steady-state power dissipation rating of 1 W at a lead temperature of 75°C, measured with 9.5 mm lead lengths mounted on 5×5 mm copper pads. This rating governs continuous power handling during abnormal overvoltage conditions - not surge events - and must be derated linearly above 75°C per the manufacturer's derating curve to avoid thermal runaway.
Does the P4KE220CA have a marked cathode band?
No, the P4KE220CA does not feature a cathode band marking because it is a bidirectional TVS diode. Its symmetrical avalanche structure provides identical electrical characteristics in both directions - confirmed by identical VBR min/max values and clamping behavior regardless of terminal polarity. Markings on the DO-41 body indicate only part number and date code, not polarity.
P4KE220CA 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:
- -
- Bidirectional Channels:
- 1
- 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)
P4KE220CA FAQ
1.How can I place an order for P4KE220CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE220CA 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 P4KE220CA reliable?
The price and inventory of P4KE220CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE220CA is usually 5 days.
3.What payment methods are accepted for P4KE220CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE220CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE220CA?
P4KE220CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE220CA 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 P4KE220CA?
For technical support, including P4KE220CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE220CA requirements.
6.How does Aetrix verify that P4KE220CA is sourced from the original manufacturer or authorized distributors?
All P4KE220CA 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 P4KE220CA meets industry standards.
7.What is the process for return or replacement of P4KE220CA?
All P4KE220CA units undergo pre-shipment inspection (PSI). If there is an issue with P4KE220CA, 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 P4KE220CA part is unused and in its original packaging.
Return procedure for P4KE220CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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