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Taiwan Semiconductor Corporation P6KE170H
- Part No.:
- P6KE170H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170H.pdf
- Description:
- 600W, 170V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,831
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Product details
Overview
P6KE170H 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 170V nominal breakdown voltage (VBR min/max = 153V/187V), 138V stand-off voltage (VWM), clamps to ≤244V at 2.5A peak surge current, and uses DO-204AC (DO-15) axial package for industrial power supply input stages.
For engineers reviewing the P6KE170H datasheet, P6KE170H pinout, P6KE170H application, or P6KE170H equivalent, this AEC-Q101 qualified TVS offers verified clamping performance under 10/1000μs surges, low dynamic impedance, sub-1ps response time, and <1μA leakage above 10V - critical for automotive ECU front-end protection, industrial PLC I/O isolation, and lighting driver surge immunity.
Technical Context
The P6KE170H operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 153–187V breakdown range at 1mA test current. Its junction structure delivers fast turn-on (<1ps from 0V to VBR) and stable clamping with 0.108%/°C VBR temperature coefficient.
It handles non-repetitive 600W surges per 10/1000μs waveform, derates linearly above 25°C ambient, and sustains 100A peak forward surge (8.3ms half-sine) - confirming suitability for inductive load switching transients in automotive body control modules and industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 138 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 150V systems. |
| VBR (min/max) | 153 V / 187 V - Breakdown occurs within this range at 1 mA; ensures reliable activation above system nominal voltage. |
| VC @ IPP | 244 V @ 2.5 A - Clamped voltage during 10/1000μs surge; limits downstream IC stress to <244V under worst-case transient. |
| PPK | 600 W - Peak pulse power handling per standard 10/1000μs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| IR @ VWM | <1 μA - Reverse leakage at 138V; negligible power loss and thermal impact in standby operation. |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments and high-ambient industrial enclosures. |
| Package | DO-204AC (DO-15) - Axial-leaded, UL 94V-0 molded package with tin-plated leads; compatible with wave soldering and manual repair. |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: banded end is cathode (connected to protected circuit ground); anode connects to line being protected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line terminal | Connected to the power rail or signal line requiring transient suppression; carries surge current into the device. |
| Cathode (banded end) | Ground/reference terminal | Connected to system ground or low-impedance return path; establishes clamping reference and completes surge current path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| 600W 10/1000μs surge rating | Withstands IEC 61000-4-5 Combination Wave (1.2/50μs voltage + 8/20μs current) up to Level 4 without degradation. |
| Clamping voltage ≤244V | Ensures protected ICs (e.g., MCU power pins, CAN transceivers) remain below absolute maximum ratings during surge events. |
| Fast response time <1ps | Activates before most semiconductor damage mechanisms initiate - critical for protecting fast-switching MOSFET gates and logic inputs. |
| Low dynamic impedance | Maintains tight clamping across surge current range, minimizing voltage overshoot and improving protection consistency. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and microcontrollers. Use Value: Limits input voltage to ≤244V during 100V/400ms load dump events, preventing regulator latch-up and MCU brownout reset. |
Use Scenario: 24V digital input channels in programmable logic controllers interfacing with field sensors and switches. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated input optocoupler or Schmitt trigger interface. Use Value: Absorbs 1kV/500A fast transients (IEC 61000-4-4 EFT) without degrading signal integrity or causing false triggering. |
| LED Driver Surge Suppression | Motor Drive Control Signal Protection |
|
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Secondary-level clamp on DC bus after bridge rectifier and bulk capacitor. Use Value: Prevents overvoltage failure of MOSFETs and current-sense amplifiers by clamping to 244V during 6kV line-to-ground surges. |
Use Scenario: Gate drive signals for IGBTs in HVAC inverter modules exposed to cross-talk and inductive kickback. IC Role / Device Role / Timing Role: Point-of-use protector on isolated gate driver output traces. Use Value: Blocks >100V spikes induced by adjacent power switching, avoiding unintended IGBT turn-on and shoot-through failure. |
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 SMAJ170A | Same 170V nominal, DO-214AC (SMA) surface-mount package; 400W rating; slightly higher VC (274V @ 2.2A). | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics vs. through-hole industrial assemblies. | Select for automated assembly and compact designs where 400W suffices and lead-free reflow is preferred. |
| ON Semiconductor 1.5KE170A | Same 170V rating, DO-201AD package; 1500W rating; larger case; higher IPP (8.7A) and lower VC (244V @ 6.2A). | Higher surge capacity suits heavy-duty industrial motor controls but requires larger board area and higher mounting torque. | Select when legacy 1.5KE footprint compatibility or >600W surge margin is mandatory for harsh environment deployments. |
Compared with SMAJ170A and 1.5KE170A, the P6KE170H provides AEC-Q101 qualification in a cost-effective DO-15 through-hole package - making it optimal for automotive and industrial applications needing proven reliability, easy hand-soldering, and precise 600W/244V clamping without over-engineering.
Availability
P6KE170H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC manufacturing, and LED driver production requiring stable component supply and long-term lifecycle assurance.
Supply support for P6KE170H 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 automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust front-end surge protection in automotive power distribution networks and industrial control systems where reliability under extreme electrical stress is non-negotiable.
FAQ
What is the key difference between P6KE170H and P6KE170A?
The P6KE170H is AEC-Q101 qualified and intended for automotive applications, while the P6KE170A is the standard industrial-grade variant without automotive qualification. Both share identical electrical specs (VBR = 153–187V, VC = 244V @ 2.5A), but only P6KE170H undergoes extended reliability testing per AEC-Q101. The "H" suffix explicitly denotes automotive qualification per TSC's ordering code.
Does P6KE170H support bidirectional transient suppression?
No, P6KE170H is a unidirectional TVS diode - it conducts only in reverse bias above VBR and blocks forward current like a standard rectifier. For bidirectional protection, TSC offers the P6KE170CA variant (with "CA" suffix), which has symmetrical breakdown in both directions and no polarity marking. Using P6KE170H in AC-coupled circuits risks forward conduction and failure.
What is the maximum allowable ambient temperature for continuous operation of P6KE170H?
P6KE170H has a junction temperature limit of +175°C and is rated for steady-state power dissipation of 5W at TA = 75°C with 9.5mm lead lengths on 5×5 mm copper pads. Derating follows Fig.2 in the datasheet: at 100°C ambient, usable power drops to ~3.5W. System thermal design must ensure junction temperature remains ≤175°C under worst-case surge and DC bias conditions.
Can P6KE170H be used in parallel for higher surge current handling?
No - P6KE170H devices should not be paralleled due to VBR mismatch (±10% tolerance), which causes uneven current sharing and thermal runaway. For higher surge capability, select a single higher-rated device like 1.5KE170A (1500W) or use a TVS array with matched dies. Parallel connection voids AEC-Q101 qualification and violates TSC's application guidance.
Is P6KE170H RoHS and halogen-free compliant?
Yes, P6KE170H is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and leads are pure tin-plated - satisfying automotive and industrial environmental compliance requirements including ELV and REACH. Full compliance documentation is available from Taiwan Semiconductor upon request.
P6KE170H 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):
- 138V
- Voltage - Breakdown (Min):
- 153V
- Voltage - Clamping (Max) @ Ipp:
- 244V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
P6KE170H FAQ
1.How can I place an order for P6KE170H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170H 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 P6KE170H reliable?
The price and inventory of P6KE170H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170H is usually 5 days.
3.What payment methods are accepted for P6KE170H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170H?
P6KE170H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170H 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 P6KE170H?
For technical support, including P6KE170H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170H requirements.
6.How does Aetrix verify that P6KE170H is sourced from the original manufacturer or authorized distributors?
All P6KE170H 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 P6KE170H meets industry standards.
7.What is the process for return or replacement of P6KE170H?
All P6KE170H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170H, 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 P6KE170H part is unused and in its original packaging.
Return procedure for P6KE170H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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