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Vishay General Semiconductor - Diodes Division P4KE170CA-E3/54
- Part No.:
- P4KE170CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE170CA-E3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,178
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Product details
Overview
P4KE170CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 170 V breakdown voltage (VBR min/max = 162 V / 179 V), 145 V stand-off voltage (VWM), 234 V clamping voltage (VC) at 1.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4KE170CA-E3/54 datasheet, P4KE170CA-E3/54 pinout, P4KE170CA-E3/54 application, or P4KE170CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, DO-41 mechanical compatibility, and thermal resistance (RθJL = 66 °C/W) for reliable surge handling in constrained layouts.
Technical Context
This device operates as a voltage-clamping protection element that conducts above its breakdown threshold to shunt transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and low incremental surge resistance, enabling fast response to ESD and inductive switching events.
The bidirectional configuration eliminates polarity concerns in AC-coupled or differential signal paths, while its 175 °C maximum junction temperature and JESD22-B106-compliant solderability support reflow and wave-solder assembly in industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V - defines precise clamping onset range under 1 mA test current |
| VWM | 145 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 234 V at 1.7 A - peak clamped voltage during 400 W transient, limiting stress on protected ICs |
| PPPM | 400 W - peak pulse power handling per 10/1000 µs waveform, supporting IEC 61000-4-5 Level 3/4 surges |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for PCB trace heat sinking design |
| TJ max | 175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (in negative half-cycle) | Conducts when cathode-to-anode voltage falls below –VBR, enabling symmetrical clamping |
| Cathode | Transient current sink (in positive half-cycle) | Conducts when anode-to-cathode voltage exceeds +VBR, completing bidirectional protection path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and <1 µA leakage at VWM over lifetime |
| 400 W peak pulse power (10/1000 µs) | Supports robust protection against lightning-induced surges per IEC 61000-4-5 |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring reliability certification |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and consumer enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across power rail and ground near connector entry point. Use Value: Clamps 145 V stand-off to 234 V during 1.7 A surge, preventing latch-up or gate oxide damage in connected SoCs. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors exposed to relay-coil flyback in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted directly at sensor connector to minimize stub length. Use Value: Sub-µA leakage at 145 V ensures minimal DC error in precision 4–20 mA loop measurements. |
| Telecom Line Interface Protection | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers on building management system field buses from induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS across differential pair (A/B) and ground to suppress common-mode transients. Use Value: Symmetrical 162–179 V breakdown ensures balanced clamping without skewing differential signaling integrity. | Use Scenario: Adding secondary surge protection on VBUS line of USB 2.0 host ports in smart home hubs after primary fuse and filter. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between upstream fuse and USB controller to absorb residual 400 W pulses. Use Value: 234 V clamping limits stress on 5.5 V-rated USB switch ICs during hot-plug ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | DO-214AA package, 1.5× smaller footprint, 600 W PPPM, higher IPPM (3.2 A) | Better suited for space-constrained PCBs; requires revised land pattern and thermal relief | Select SMBJ170CA when board area is limited and higher surge margin is needed |
| 1.5KE170CA | DO-201AD package, 1.5× larger body, identical VBR/VC, same 400 W rating but higher thermal mass | Preferred for high-reliability industrial power supplies where mechanical robustness outweighs size | Choose 1.5KE170CA when enhanced thermal cycling endurance and vibration resistance are required |
Compared with SMBJ170CA and 1.5KE170CA, the P4KE170CA-E3/54 offers optimal balance of legacy DO-41 compatibility, AEC-Q101 qualification, and proven field reliability in cost-sensitive automotive and industrial designs-without requiring layout revision or derating for standard surge profiles.
Availability
P4KE170CA-E3/54 is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor signal conditioning, and telecom interface protection requiring stable component supply across multi-year production cycles.
Supply support for P4KE170CA-E3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with broad automotive and industrial qualification coverage.
The P4KE170CA-E3/54 belongs to the TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where reliability under repetitive surge stress is mandatory.
FAQ
What is the breakdown voltage tolerance for P4KE170CA-E3/54?
The P4KE170CA-E3/54 has a breakdown voltage (VBR) range of 162 V to 179 V at 1 mA test current, corresponding to a ±5% tolerance around the nominal 170 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for consistent protection in automotive and industrial systems where overvoltage margins are tightly constrained.
Is P4KE170CA-E3/54 suitable for automotive applications?
Yes, the P4KE170CA-E3/54 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and body-control module applications. Its DO-41 package meets JESD22-B106 solderability standards, and the glass-passivated junction ensures long-term stability in thermally cycled automotive environments-key attributes confirmed in Vishay's official qualification report for this part number.
How does the bidirectional configuration of P4KE170CA-E3/54 affect its use in AC circuits?
The bidirectional configuration of P4KE170CA-E3/54 allows symmetric clamping for both positive and negative voltage transients without polarity sensitivity-ideal for AC-coupled interfaces like RS-485, CAN FD, or audio lines. Unlike unidirectional TVS diodes, P4KE170CA-E3/54 requires no orientation during placement and maintains identical VBR and VC characteristics in either direction, simplifying layout and reducing BOM complexity.
What is the maximum clamping voltage of P4KE170CA-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE170CA-E3/54 is 234 V at 1.7 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value represents the upper limit of voltage seen by protected circuitry during a full 400 W transient event, directly determining the safe operating margin for downstream components such as microcontrollers or transceivers rated for ≤250 V absolute maximum.
Does P4KE170CA-E3/54 require heatsinking in typical applications?
In most single-pulse or low-duty-cycle surge scenarios, P4KE170CA-E3/54 does not require external heatsinking due to its 66 °C/W junction-to-lead thermal resistance and 1.5 W steady-state power dissipation rating. However, for repetitive surge events exceeding 0.01% duty cycle or ambient temperatures above 75 °C, PCB copper pour under the DO-41 leads is recommended to maintain junction temperature below 175 °C and ensure long-term reliability.
P4KE170CA-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- 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)
P4KE170CA-E3/54 FAQ
1.How can I place an order for P4KE170CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE170CA-E3/54 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 P4KE170CA-E3/54 reliable?
The price and inventory of P4KE170CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE170CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE170CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE170CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE170CA-E3/54?
P4KE170CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE170CA-E3/54 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 P4KE170CA-E3/54?
For technical support, including P4KE170CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE170CA-E3/54 requirements.
6.How does Aetrix verify that P4KE170CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE170CA-E3/54 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 P4KE170CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE170CA-E3/54?
All P4KE170CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE170CA-E3/54, 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 P4KE170CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE170CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE170CA-E3/54 Tags
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