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Taiwan Semiconductor Corporation P6KE440CH
- Part No.:
- P6KE440CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440CH.pdf
- Description:
- 600W, 440V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,650
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Product details
Overview
P6KE440CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 440V breakdown voltage (396–484 V), 356 V stand-off voltage, 631 V clamping voltage at 1.0 A peak pulse current, and DO-204AC (DO-15) axial package - used in industrial power supplies, telecom line cards, and automotive ECU input protection.
For engineers reviewing the P6KE440CH datasheet, P6KE440CH pinout, P6KE440CH application, or P6KE440CH equivalent, key selection criteria include clamping ratio (VC/VBR ≈ 1.59), low leakage (<1 µA @ 356 V), AEC-Q101 qualification, 10/1000 µs surge rating, and thermal stability up to +175°C junction temperature.
Technical Context
The P6KE440CH operates as a silicon avalanche diode with fast response time (<1.0 ps from 0 V to VBR), low dynamic impedance, and stable breakdown under repetitive transients. Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity installation relative to protected circuit ground.
It complies with ANSI/IEEE C62.35 for surge testing, supports 8.3 ms half-sine forward surge up to 100 A (IFSM), and derates linearly above 25°C ambient per Fig.2 - maintaining 600 W peak pulse power at TA ≤ 25°C and ~300 W at TA = 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 396 V / 484 V - ensures reliable avalanche conduction onset across manufacturing tolerance and temperature |
| VWM | 356 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPP | 631 V @ 1.0 A - clamping voltage limits downstream voltage stress during 10/1000 µs surge |
| PPK | 600 W - peak non-repetitive surge power handling capability per standard waveform |
| IR @ VWM | <1 µA - minimal standby leakage preserves system efficiency and battery life |
| TJMAX | +175°C - enables operation in high-temperature environments like engine compartments or enclosed power enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package compatible with through-hole assembly and manual repair |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking; 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 | Connected to protected circuit's lower-potential node (e.g., GND or return path) | Completes clamping path during reverse overvoltage events; must be routed with low-inductance trace |
| Cathode | Connected to protected circuit's higher-potential node (e.g., VIN, signal line) | Receives transient energy and conducts avalanche current to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 600 W 10/1000 µs surge rating | Withstands high-energy lightning-induced surges without degradation in industrial or telecom infrastructure |
| Clamping ratio (VC/VBR) ≈ 1.59 | Minimizes overvoltage overshoot during clamping, reducing stress on downstream ICs and passives |
| Ultra-low leakage <1 µA @ 356 V | Prevents excessive quiescent current in always-on systems such as remote sensors or battery-backed controllers |
| UL Recognized (E326243) | Meets safety requirements for end-equipment certification in North America and globally harmonized markets |
Applications
| Industrial Power Input Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: 48 V DC power feed to programmable logic controllers exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp negative-going spikes. Use Value: Limits voltage to ≤631 V during 600 W surges, protecting upstream DC-DC converters and microcontrollers rated for 36 V absolute max. |
Use Scenario: Protection of Ethernet PHY interface power pins against EFT and lightning-induced surges on outdoor base station line cards. IC Role / Device Role / Timing Role: Standoff-rated TVS on +48 V bias rail, absorbing repetitive fast transients without thermal runaway. Use Value: Maintains <1 µA leakage at 356 V, avoiding false triggering or power loss in always-active network equipment. |
| Automotive Body Control Module (BCM) | Renewable Energy Inverter DC Link |
Use Scenario: Input protection for 12 V/24 V BCM modules subjected to ISO 7637-2 Pulse 1 and Pulse 3a/b transients. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS on battery-supplied rails, with cathode tied to supply and anode to ground. Use Value: Survives -55°C to +175°C junction temperature range and passes automotive vibration and thermal shock tests. |
Use Scenario: Overvoltage suppression on 400–600 V DC link of solar string inverters exposed to grid switching transients. IC Role / Device Role / Timing Role: High-VBR TVS placed across DC bus capacitors to clamp voltage excursions exceeding 440 V. Use Value: Clamps 10/1000 µs surges at 631 V while dissipating 600 W peak power - preventing IGBT gate driver damage and bus capacitor overvoltage failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ440A | Same 440 V VBR, but 400 W PPK; DO-214AC (SMA) surface-mount package | Requires PCB re-layout; better suited for space-constrained designs with automated SMT assembly | Select if board real estate is limited and SMT process is available; not drop-in for through-hole P6KE440CH |
| ON Semiconductor 1.5KE440A | Same 440 V VBR, 1500 W PPK, DO-201AD package; higher surge capacity but larger footprint | Used where higher single-event energy absorption is required (e.g., utility meter front-end) | Choose for enhanced surge margin in harsh environments; requires mechanical redesign due to longer body and different lead spacing |
Compared with SMAJ440A and 1.5KE440A, the P6KE440CH offers optimal balance of 600 W surge rating, AEC-Q101 qualification, and DO-15 compatibility - making it ideal for cost-sensitive, high-volume automotive and industrial through-hole assemblies where reliability and legacy footprint retention are critical.
Availability
P6KE440CH is available at Aetrix Electronics and suitable for industrial power input protection, telecom line card surge suppression, and automotive body control module (BCM) applications requiring stable component supply and long-term lifecycle support.
Supply support for P6KE440CH 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, serving global industrial, automotive, and consumer markets since 1979.
The P6KE series belongs to TSC's high-reliability TVS portfolio, engineered specifically for robust transient immunity in harsh environments - emphasizing AEC-Q101 compliance, tight parametric distribution, and UL recognition for safety-critical deployments.
FAQ
What is the clamping voltage of P6KE440CH and how is it measured?
The P6KE440CH has a maximum clamping voltage (VC) of 631 V at 1.0 A peak pulse current (IPP), tested using the standardized 10/1000 µs double-exponential surge waveform. This value represents the upper limit of voltage seen by downstream components during a transient event, ensuring protection of 400–600 V rated devices. The P6KE440CH maintains this clamping performance across its specified junction temperature range.
Is P6KE440CH suitable for automotive applications?
Yes, the P6KE440CH is AEC-Q101 qualified (denoted by the "H" suffix), meaning it has passed rigorous stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating its use in automotive body electronics, infotainment power rails, and ADAS sensor interfaces. Its -55°C to +175°C operating range aligns with under-hood and cabin deployment requirements.
How does P6KE440CH differ from P6KE440A?
The P6KE440CH is the AEC-Q101 qualified version of the P6KE440A, sharing identical electrical parameters (VBR = 396–484 V, VWM = 356 V, VC = 631 V) and DO-204AC package. The "H" suffix confirms automotive-grade reliability validation, while "A" denotes tighter VBR tolerance (±5% vs ±10% for non-A parts). Both are unidirectional and RoHS/halogen-free compliant.
What is the maximum steady-state power dissipation for P6KE440CH?
The P6KE440CH has a steady-state power dissipation (PD) of 5 W at TA = 75°C with 9.5 mm lead lengths mounted on 5 × 5 mm copper pads. This rating applies only to continuous DC or low-frequency conditions - not surge events. For transient protection, the device relies on its 600 W peak pulse rating, which is non-repetitive and thermally limited by junction temperature.
Can P6KE440CH be used in bidirectional configurations?
No, the P6KE440CH is unidirectional only, indicated by the absence of "C" or "CA" suffix. Bidirectional variants (e.g., P6KE440C) are explicitly designated and feature symmetrical breakdown in both polarities. Using P6KE440CH in reverse-biased AC applications risks catastrophic failure due to lack of forward conduction capability - always verify polarity marking (cathode band) during placement.
P6KE440CH 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):
- 356V
- Voltage - Breakdown (Min):
- 396V
- Voltage - Clamping (Max) @ Ipp:
- 631V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE440CH FAQ
1.How can I place an order for P6KE440CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440CH 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 P6KE440CH reliable?
The price and inventory of P6KE440CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440CH is usually 5 days.
3.What payment methods are accepted for P6KE440CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440CH?
P6KE440CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440CH 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 P6KE440CH?
For technical support, including P6KE440CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440CH requirements.
6.How does Aetrix verify that P6KE440CH is sourced from the original manufacturer or authorized distributors?
All P6KE440CH 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 P6KE440CH meets industry standards.
7.What is the process for return or replacement of P6KE440CH?
All P6KE440CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440CH, 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 P6KE440CH part is unused and in its original packaging.
Return procedure for P6KE440CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440CH Tags
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