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Taiwan Semiconductor Corporation P6KE170A
- Part No.:
- P6KE170A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170A.pdf
- Description:
- TVS DIODE 145VWM 234VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,099
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Product details
Overview
P6KE170A from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 170 V, clamps transients to ≤234 V at 2.6 A peak surge current, and delivers <1 μA reverse leakage at its 145 V stand-off voltage - deployed in automotive body control modules, industrial PLC I/O protection, and telecom power supply front-ends.
For engineers reviewing the P6KE170A datasheet, P6KE170A pinout, P6KE170A application, or P6KE170A equivalent, key selection criteria include its DO-15 package compatibility, unidirectional polarity marking, 175°C junction rating, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The P6KE170A operates as a silicon avalanche diode with precise Zener-like breakdown behavior under transient overvoltage conditions. Its 10/1000 μs waveform surge rating of 600 W defines its energy-handling capability, while its <1.0 ps response time ensures sub-nanosecond turn-on from zero bias to VBR, critical for protecting fast-switching MOSFET gates and microcontroller I/O pins.
Thermal derating follows a linear curve above 25°C ambient, maintaining safe operation up to 175°C junction temperature. The device uses a single-die DO-204AC (DO-15) construction with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 145 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit DC rail. |
| VBR (min/max) | 162 V / 179 V at 1 mA test current - Tight 10.5% tolerance ensures predictable clamping onset across production lots. |
| VC @ IPP | 234 V at 2.6 A - Clamping voltage during 10/1000 μs surge; determines maximum stress imposed on downstream ICs. |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life in always-on systems and avoids false triggering in high-impedance sensing nodes. |
| PPK | 600 W - Peak pulse power handling per 10/1000 μs waveform; enables robust protection against EFT and lightning-induced surges. |
| TJMAX | 175 °C - High junction temperature rating supports operation in under-hood automotive environments and enclosed industrial enclosures. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 0.400 g mass; compatible with legacy through-hole assembly and manual rework. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; forms clamping loop with cathode during transient events. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail); avalanche conduction begins here when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces per stress test requirements. |
| 600 W 10/1000 μs surge rating | Withstands repeated high-energy transients without degradation - suitable for ISO 7637-2 Pulse 1/2a/5a compliance testing. |
| Clamping voltage ≤234 V | Ensures protected ICs (e.g., CAN transceivers, MCU GPIOs) remain below absolute maximum ratings during surge events. |
| Dynamic impedance <1 Ω | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity for high-speed circuits. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained industrial and consumer designs. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects 12 V supply rail and LIN bus lines from load dump and inductive switching spikes in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between fused battery feed and local LDO regulator input. Use Value: Limits transient excursions to ≤234 V, preventing latch-up or gate oxide rupture in 3.3 V/5 V logic ICs downstream. |
Use Scenario: Shields 24 V digital input optocoupler circuits from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end TVS on isolated input channel, positioned before series current-limiting resistor and opto-LED anode. Use Value: Absorbs >600 W surge energy without failure, enabling EN 61000-4-5 Level 4 (4 kV) immunity compliance. |
| Telecom Power Supply Input | Smart Meter AC/DC Converter Stage |
|
Use Scenario: Guards primary-side rectifier output against lightning-induced surges entering via AC mains in outdoor base station power supplies. IC Role / Device Role / Timing Role: Secondary-stage clamping device after MOV, providing precise low-clamp backup protection for bulk capacitor and controller IC. Use Value: Delivers tighter VC tolerance than MOVs alone, reducing stress on PWM controller's VCC pin during combined-mode transients. |
Use Scenario: Protects auxiliary 12 V DC-DC converter input in electricity meters exposed to utility grid switching transients. IC Role / Device Role / Timing Role: Standoff-rated TVS across input filter capacitor, shunting fast transients before they reach buck controller feedback network. Use Value: Maintains <1 μA leakage at 145 V, avoiding measurable error in metrology-grade voltage references over 15-year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Same 170 V nominal, but SMB package (surface-mount); 600 W rating at 10/1000 μs; slightly higher VC = 243 V @ 2.5 A. | Requires PCB redesign for SMT placement; better thermal performance in high-density layouts but lacks axial lead serviceability. | Select SMBJ170A for space-constrained, automated assembly; retain P6KE170A for through-hole prototyping, repair, or high-reliability manual assembly. |
| 1.5KE170A | Same DO-15 package and 170 V rating, but 1500 W peak power; larger die size; VC = 274 V @ 5.5 A; higher leakage (5 μA @ VWM). | Over-specified for most 600 W use cases; introduces unnecessary cost and board area unless system requires multi-pulse endurance. | Choose 1.5KE170A only if validated multi-event surge testing shows P6KE170A wear-out; otherwise P6KE170A offers optimal cost-performance balance. |
Compared with SMBJ170A and 1.5KE170A, the P6KE170A delivers the precise 600 W surge rating and 234 V clamping needed for cost-sensitive automotive and industrial protection - without SMT layout constraints or excessive power margin that raises leakage and cost.
Availability
P6KE170A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for P6KE170A 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, low-leakage overvoltage protection in harsh-environment electronic control units and power interface circuits.
FAQ
What is the maximum clamping voltage of the P6KE170A under standard surge conditions?
The P6KE170A clamps to a maximum of 234 V when subjected to its rated 2.6 A peak pulse current (IPP) under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees downstream ICs remain within safe operating limits during standardized surge events. The P6KE170A achieves this with minimal dynamic impedance, ensuring consistent performance across temperature and lot variations.
Is the P6KE170A suitable for automotive applications?
Yes, the P6KE170A is AEC-Q101 qualified, making it suitable for automotive applications including body control modules, lighting drivers, and sensor interface protection. Its 175°C junction rating, low leakage (<1 μA), and robust 600 W surge capability align with ISO 7637-2 and ISO 16750-2 requirements. The P6KE170A is explicitly listed in TSC's AEC-Q101 documentation for the P6KE series (excluding early variants like P6KE6V8A–P6KE9V1A).
How does the P6KE170A differ from the P6KE170 (non-A) variant?
The P6KE170A features tighter breakdown voltage tolerance (162–179 V vs. 153–187 V for P6KE170) and lower clamping voltage (234 V vs. 244 V), resulting from enhanced process control. Both share identical DO-15 packaging and 600 W rating, but the 'A' suffix denotes improved parametric consistency - critical for designs requiring predictable clamping margins. The P6KE170A also carries full AEC-Q101 qualification, whereas P6KE170 does not.
What is the reverse leakage current specification for the P6KE170A at its stand-off voltage?
The P6KE170A exhibits a maximum reverse leakage current of 1 μA when biased at its 145 V stand-off voltage (VWM) and tested at 25°C. This ultra-low leakage minimizes standby power loss and prevents false triggering in high-impedance monitoring circuits. The P6KE170A maintains this spec across its full operating temperature range, supporting reliable performance in battery-powered and precision analog systems.
Can the P6KE170A be used in bidirectional configurations?
No - the P6KE170A is a unidirectional TVS diode, indicated by its 'A' suffix and cathode band marking. Bidirectional operation requires CA-suffixed parts (e.g., P6KE170CA). Using P6KE170A in reverse-biased AC applications risks catastrophic failure due to lack of symmetric avalanche structure. For AC line protection, select the P6KE170CA variant, which provides matched breakdown in both directions and is explicitly rated for bipolar use per TSC documentation.
P6KE170A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE170A FAQ
1.How can I place an order for P6KE170A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170A 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 P6KE170A reliable?
The price and inventory of P6KE170A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170A is usually 5 days.
3.What payment methods are accepted for P6KE170A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170A?
P6KE170A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170A 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 P6KE170A?
For technical support, including P6KE170A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170A requirements.
6.How does Aetrix verify that P6KE170A is sourced from the original manufacturer or authorized distributors?
All P6KE170A 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 P6KE170A meets industry standards.
7.What is the process for return or replacement of P6KE170A?
All P6KE170A units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170A, 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 P6KE170A part is unused and in its original packaging.
Return procedure for P6KE170A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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