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Vishay General Semiconductor - Diodes Division P4KE170A-E3/54
- Part No.:
- P4KE170A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE170A-E3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,012
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Product details
Overview
P4KE170A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 162 V minimum breakdown voltage (VBR), 145 V maximum standoff voltage (VWM), 234 V clamping voltage at 1.7 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and automotive ECUs.
For engineers reviewing the P4KE170A-E3/54 datasheet, P4KE170A-E3/54 pinout, P4KE170A-E3/54 application, or P4KE170A-E3/54 equivalent, this page delivers verified electrical parameters, thermal derating behavior, DO-41 mechanical dimensions, AEC-Q101 qualification status, and direct alternative part comparisons - all aligned to Vishay Document #88365 (Rev. 16-Sep-2021).
Technical Context
The P4KE170A-E3/54 operates as a unidirectional avalanche diode, triggering conduction when reverse voltage exceeds its 162–179 V breakdown range at 1 mA test current. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching transients.
Thermal performance is defined by RθJL = 66 °C/W (junction-to-lead) and RθJA = 100 °C/W (junction-to-ambient, LLead = 10 mm). It supports continuous operation from –55 °C to +175 °C and meets JESD 22-B106 solder dip requirements (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at IT = 1 mA - defines reliable turn-on threshold under transient stress |
| VWM | 145 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 234 V at IPPM = 1.7 A (10/1000 µs) - clamping level protecting downstream ICs from overvoltage damage |
| PPPM | 400 W - peak transient energy absorption capability per single pulse, duty cycle ≤ 0.01 % |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current limiting |
| TJ max. | +175 °C - enables use in high-temperature environments such as engine compartments and power converters |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix); UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail or CAN_H); color band identifies polarity for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge events |
| 400 W peak pulse power (10/1000 µs) | Supports suppression of high-energy transients from relay coil decay or load dump in 24 V systems |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics without additional qualification effort |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage during clamping, reducing stress on downstream MOSFETs and microcontrollers |
| 100 °C/W junction-to-ambient thermal resistance | Allows direct PCB mounting without heatsink in low-duty-cycle applications (e.g., infrequent ESD events) |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protection of 24 V supply inputs in junction boxes and battery management modules against load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed upstream of DC-DC converters and power switches to clamp overshoot before it reaches regulation circuitry. Use Value: Withstands 1.7 A peak pulse at 234 V clamping, limiting stress on 36 V-rated input capacitors and enabling compliance with OEM surge immunity requirements. |
Use Scenario: Shielding gate drivers and position sensor interfaces in servo inverters from inductive kickback during IGBT switching. IC Role / Device Role / Timing Role: Fast-response TVS on encoder signal lines (A/B/Z) and isolated gate drive supplies to suppress sub-100 ns ringing. Use Value: Sub-1 ns response time and 145 V standoff prevent false triggering while maintaining noise margin for 24 V logic-level signals. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Overvoltage protection on -48 V DC telecom rectifier outputs exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary clamping device on feed lines entering remote radio units, coordinated with upstream GDTs for staged protection. Use Value: 400 W pulse rating and 175 °C max junction temperature support operation in sealed, high-ambient enclosures without thermal derating penalties. |
Use Scenario: Safeguarding microcontroller I/O pins and relay coil suppression circuits in washing machine main control boards subjected to user-induced ESD and pump motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS on 5 V/12 V rails and optocoupler inputs to absorb repetitive 8 kV contact ESD per IEC 61000-4-2. Use Value: 1 μA max leakage at 145 V ensures negligible standby current impact, preserving energy efficiency certifications. |
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 | DO-214AA package; 1.5× smaller footprint; 170 V VBR min; 246 V VC @ 1.5 A; 600 W PPPM | Higher power density but lower surge current handling; requires tighter layout due to smaller pad spacing | Select SMBJ170A when board space is constrained and peak pulse energy remains within 600 W limits; verify creepage/clearance for 246 V clamping. |
| 1.5KE170A | DO-201AD package; identical VBR/VC specs; 1.5 kW PPPM; higher IPPM (2.6 A); larger thermal mass | Better thermal endurance for repetitive surges; not AEC-Q101 qualified; longer lead time | Choose 1.5KE170A for industrial UPS or solar charge controllers needing >1000 pulses; avoid in automotive unless re-qualified. |
Compared with P4KE170A-E3/54, SMBJ170A offers higher power density but reduced surge margin, while 1.5KE170A provides superior thermal robustness at the cost of size and automotive qualification - making P4KE170A-E3/54 the optimal balance of AEC-Q101 compliance, DO-41 manufacturability, and 400 W transient handling for mid-tier automotive and industrial designs.
Availability
P4KE170A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive interface conditioning, and telecom power feed surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P4KE170A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P4KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity.
FAQ
What is the breakdown voltage tolerance of the P4KE170A-E3/54?
The P4KE170A-E3/54 has a specified breakdown voltage range of 162 V to 179 V at 1 mA test current, corresponding to ±5.5 % tolerance around the nominal 170 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level surge margin calculations in designs using the P4KE170A-E3/54.
Is the P4KE170A-E3/54 suitable for bidirectional transient protection?
No, the P4KE170A-E3/54 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., P4KE170CA). Using P4KE170A-E3/54 in AC-coupled or symmetrical signal paths would result in forward conduction during negative half-cycles, potentially damaging the device or circuit.
Does the P4KE170A-E3/54 require a heatsink for standard operation?
No, the P4KE170A-E3/54 does not require an external heatsink under typical transient conditions. Its 100 °C/W junction-to-ambient thermal resistance and 1.5 W steady-state power dissipation rating allow safe operation with standard PCB copper pours. Heatsinking becomes relevant only in high-duty-cycle or continuous-power fault scenarios - which fall outside the intended 0.01 % duty cycle specification for the P4KE170A-E3/54.
How does the P4KE170A-E3/54 perform under elevated ambient temperatures?
The P4KE170A-E3/54 follows Vishay's standard derating curve: peak pulse power decreases linearly above 25 °C ambient, reaching ~50 % of 400 W at 100 °C case temperature. Its +175 °C maximum junction temperature allows full-rated operation in engine bay or industrial enclosure environments when PCB thermal design maintains TJ ≤ 175 °C - confirmed via thermal simulation or measurement with the P4KE170A-E3/54.
What is the meaning of the "E3/54" suffix in P4KE170A-E3/54?
The "E3" denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/54" specifies the preferred packaging code - 5500 pieces per 13-inch paper tape and reel. This ordering format ensures traceability, automated placement compatibility, and compliance with IPC-J-STD-020 moisture sensitivity level (MSL) requirements for the P4KE170A-E3/54.
P4KE170A-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE170A-E3/54 FAQ
1.How can I place an order for P4KE170A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE170A-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 P4KE170A-E3/54 reliable?
The price and inventory of P4KE170A-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 P4KE170A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE170A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE170A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE170A-E3/54?
P4KE170A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE170A-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 P4KE170A-E3/54?
For technical support, including P4KE170A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE170A-E3/54 requirements.
6.How does Aetrix verify that P4KE170A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE170A-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 P4KE170A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE170A-E3/54?
All P4KE170A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE170A-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 P4KE170A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE170A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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