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Vishay General Semiconductor - Diodes Division P4KE170AHE3/54
- Part No.:
- P4KE170AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE170AHE3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,414
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Product details
Overview
P4KE170AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 170 V breakdown voltage (VBR min/max = 162–179 V), 145 V standoff 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 P4KE170AHE3/54 datasheet, P4KE170AHE3/54 pinout, P4KE170AHE3/54 application, or P4KE170AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, glass-passivated junction, 175 °C max junction temperature, and suitability for automotive and industrial overvoltage protection where precise clamping and high surge robustness are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-marked polarity (band denotes cathode). Its silicon junction is glass passivated for stable leakage and reliability under thermal cycling. The device responds to transient overvoltages within picoseconds and maintains low incremental surge resistance during 10/1000 μs surges.
It is rated for 400 W peak pulse power per single 10/1000 μs waveform at 0.01% duty cycle, with derating above 25 °C ambient per Fig. 2. Thermal resistance is 66 °C/W junction-to-lead and 100 °C/W junction-to-ambient (LLead = 10 mm), supporting reliable operation in constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at 1.0 mA test current - defines guaranteed clamping onset range under standardized breakdown test |
| VWM | 145 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 234 V at 1.7 A - clamped voltage during full-rated 400 W transient, critical for downstream IC survivability |
| IPPM | 1.7 A - peak pulse current capability with 10/1000 μs waveform, directly tied to 400 W rating |
| PPPM | 400 W - peak pulse power handling for transient suppression without failure |
| TJ max | 175 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; RoHS-compliant and qualified to J-STD-002/JESD 22-B102 solderability standards. Cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse-biased supply rail fault) |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential side; initiates avalanche breakdown when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable leakage current (<1.0 μA at VWM) and long-term reliability across thermal cycles and humidity exposure |
| 400 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events in automotive and industrial systems |
| AEC-Q101 qualification | Validates suitability for automotive electronics including engine control units, body modules, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs compared to higher-ratio suppressors, improving system-level immunity margin |
| DO-41 package with 100 °C/W RθJA | Enables direct PCB mounting without heatsink in moderate-power applications; compatible with standard through-hole assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and inductive switching transients. IC Role / Device Role: Unidirectional TVS placed between power rail and ground to clamp surges exceeding 145 V. Use Value: Limits voltage to ≤234 V during 400 W transients, preventing damage to MCU, CAN transceivers, and voltage regulators. |
Use Scenario: Safeguarding analog outputs and digital I/O of pressure/temperature sensors in factory automation. IC Role / Device Role: Clamping induced surges on 4–20 mA or 0–10 V signal lines caused by nearby motor contactor switching. Use Value: Maintains signal integrity by suppressing transients before they reach precision ADCs or op-amps, with <1 μA leakage at 145 V. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing AC/DC adapter outputs feeding base station radios or PoE injectors. IC Role / Device Role: Primary overvoltage clamp on +48 V DC input rails exposed to lightning-induced surges. Use Value: Withstands repetitive 10/1000 μs pulses up to 400 W, meeting IEC 61000-4-5 Level 3 requirements. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role: Mounted across motor terminals to absorb inductive kickback energy during MOSFET turn-off. Use Value: Fast response (<1 ns) and 175 °C junction rating ensure survival in thermally demanding appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Surface-mount SMB package (vs. through-hole DO-41); same VBR range (162–179 V), 600 W PPPM, lower VC (243 V) | Requires PCB rework for SMT layout; better suited for space-constrained designs with automated assembly | Select SMBJ170A when board real estate is limited and SMT process is established; verify thermal relief pad design for 600 W surge. |
| 1.5KE170A | Same DO-41 package but higher 1500 W PPPM; VBR 162–179 V, VC 274 V at 5.5 A; no AEC-Q101 qualification | Higher clamping voltage reduces protection margin for sensitive ICs; intended for non-automotive industrial use | Choose 1.5KE170A only for cost-sensitive, non-automotive applications requiring higher single-pulse energy absorption. |
Compared with P4KE170AHE3/54, SMBJ170A offers higher surge rating and SMT compatibility but requires layout change, while 1.5KE170A delivers greater pulse energy handling at the expense of clamping performance and automotive qualification-making P4KE170AHE3/54 optimal for AEC-Q101–mandated, thermally stable, through-hole TVS needs.
Availability
P4KE170AHE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply and AEC-Q101 compliance.
Supply support for P4KE170AHE3/54 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 emphasis on reliability, efficiency, and application-specific validation.
The P4KE series targets cost-effective, high-reliability transient suppression in automotive, industrial, and consumer power systems-designed for robustness under thermal stress and electrical surge conditions.
FAQ
What is the maximum clamping voltage of the P4KE170AHE3/54 under rated surge conditions?
The P4KE170AHE3/54 has a maximum clamping voltage (VC) of 234 V at 1.7 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC standards and ensures predictable overvoltage limiting for downstream components. The clamping occurs rapidly (<1 ns), and VC remains stable across temperature due to the device's low temperature coefficient (0.108 %/°C).
Is the P4KE170AHE3/54 suitable for automotive applications?
Yes, the P4KE170AHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, glass-passivated junction, and validation across temperature cycling, HTRB, and surge tests make it appropriate for engine control units, body electronics, and ADAS sensor interfaces. The HE3 suffix confirms AEC-Q101 compliance per Vishay's ordering nomenclature.
How does the P4KE170AHE3/54 differ from the commercial-grade P4KE170A-E3/54?
The P4KE170AHE3/54 differs from P4KE170A-E3/54 solely in qualification level: HE3 denotes AEC-Q101 qualification, while E3 is commercial grade. Both share identical electrical specs (VBR, VWM, VC, PPPM), DO-41 package, and RoHS compliance. The HE3 version undergoes additional stress testing for automotive reliability, including extended temperature cycling and accelerated life testing.
What is the standoff voltage (VWM) and why is it important for P4KE170AHE3/54 selection?
The P4KE170AHE3/54 has a standoff voltage (VWM) of 145 V, meaning it remains non-conductive below this reverse voltage. This parameter ensures minimal leakage (<1.0 μA) during normal operation while allowing sufficient margin above typical 12 V/24 V system rails. Selecting VWM ≥ 1.1× nominal supply avoids false triggering and ensures reliable clamping only during actual transients.
Can the P4KE170AHE3/54 be used in bidirectional configurations?
No, the P4KE170AHE3/54 is unidirectional only, as indicated by the "A" suffix and cathode band marking. Bidirectional variants require the "CA" suffix (e.g., P4KE170CA). Using P4KE170AHE3/54 in bidirectional circuits would result in forward conduction during negative transients, potentially causing failure. For symmetrical surge protection, select the CA version or pair unidirectional devices appropriately.
P4KE170AHE3/54 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE170AHE3/54 FAQ
1.How can I place an order for P4KE170AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE170AHE3/54 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 P4KE170AHE3/54 reliable?
The price and inventory of P4KE170AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE170AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE170AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE170AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE170AHE3/54?
P4KE170AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE170AHE3/54 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 P4KE170AHE3/54?
For technical support, including P4KE170AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE170AHE3/54 requirements.
6.How does Aetrix verify that P4KE170AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE170AHE3/54 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 P4KE170AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE170AHE3/54?
All P4KE170AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE170AHE3/54, 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 P4KE170AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE170AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE170AHE3/54 Tags
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