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Vishay General Semiconductor - Diodes Division P4KE220HE3/73
- Part No.:
- P4KE220HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE220HE3/73.pdf
- Description:
- TVS DIODE 175VWM 344VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,343
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Product details
Overview
P4KE220HE3/73 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 209 V minimum / 231 V maximum breakdown voltage (VBR), 185 V standoff voltage (VWM), and clamps transients to ≤328 V at 1.2 A peak pulse current (IPPM) under 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE220HE3/73 datasheet, P4KE220HE3/73 pinout, P4KE220HE3/73 application, or P4KE220HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, clamping performance at rated surge, and direct alternatives with documented VBR, VC, and package compatibility.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ps) and low incremental surge resistance. Its 400 W peak pulse power rating (10/1000 μs) and 175 °C maximum junction temperature support high-reliability transient suppression in automotive-grade environments.
Designed for single-polarity DC line protection, it exhibits 3.5 V forward voltage at 25 A (per spec note), 1.5 W steady-state power dissipation on infinite heatsink, and thermal resistance of 66 °C/W (junction-to-lead), enabling predictable thermal management in constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1.0 mA test current - defines reliable avalanche initiation threshold across production lot |
| VWM | 185 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | ≤328 V at 1.2 A (10/1000 μs) - clamping voltage limiting stress on downstream ICs during surge events |
| PPPM | 400 W - peak transient energy absorption capability without failure under standardized surge waveform |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| RθJL | 66 °C/W - quantifies thermal path efficiency from junction to lead, critical for sustained surge duty cycle planning |
| AEC-Q101 | Qualified - validated for automotive electronic systems per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body; compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit (e.g., ground or return path) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., supply rail or signal line); marked with band |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under humidity and thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly filtered designs |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules without additional qualification effort |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage overshoot during fast transients, reducing risk of MOSFET gate oxide damage |
| 175 °C junction rating | Permits placement near heat sources (e.g., power inductors, motor drivers) without thermal derating penalties |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed microcontroller power inputs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive-going transients above 185 V. Use Value: Limits voltage seen by LDO regulator input to ≤328 V during 100 ms load dump events, preventing regulator latch-up or destruction. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; P4KE220HE3/73 used in unidirectional configuration on supply-side of sensor transmitter. Use Value: Suppresses >1 kV contact ESD (IEC 61000-4-2) before reaching op-amp input stage, preserving measurement accuracy and longevity. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Driver Stage |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges on DC bias lines. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC feed line upstream of DC-DC converter input. Use Value: Absorbs 400 W transient energy within 1000 μs, maintaining <100 ns response to prevent transformer saturation or MOSFET avalanche failure. |
Use Scenario: Guarding H-bridge gate driver ICs in washing machine motor controllers from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Mounted across VCC and GND pins of half-bridge driver to clamp inductive kickback. Use Value: Clamps 200 V+ flyback spikes to ≤328 V, eliminating need for snubber RC networks and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A-E3/52 (Vishay) | Same VBR range (209–231 V), but SMC (DO-214AB) package; 600 W PPPM; RθJA = 35 °C/W | Higher power handling and better thermal dissipation; requires larger PCB footprint | Select when surge repetition rate exceeds 0.01 % duty cycle or ambient exceeds 105 °C |
| 1.5KE220A (ON Semiconductor) | Identical DO-41 package and VBR/VC specs; 1.5 kW PPPM; non-AEC-Q101; VF = 3.5 V at 25 A | Higher peak power margin but lacks automotive qualification and tighter VBR tolerance (±10 %) | Acceptable for industrial/commercial use where AEC-Q101 is not mandated and cost sensitivity favors legacy stock |
Compared with SMBJ220A-E3/52, P4KE220HE3/73 offers smaller footprint and AEC-Q101 compliance at lower peak power; versus 1.5KE220A, it trades broader qualification and tighter VBR tolerance for identical form factor and proven automotive deployment history.
Availability
P4KE220HE3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC feeder protection requiring stable component supply and full traceability.
Supply support for P4KE220HE3/73 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, AEC-Q qualification, and high-volume manufacturability.
The P4KE series targets cost-sensitive yet mission-critical transient suppression in automotive, industrial, and telecom infrastructure, balancing DO-41 legacy compatibility with AEC-Q101 validation and tight parametric control.
FAQ
What is the clamping voltage of P4KE220HE3/73 at its rated peak pulse current?
The P4KE220HE3/73 clamps to a maximum of 328 V when subjected to its specified 1.2 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during surge events. The P4KE220HE3/73 maintains this clamping performance across its qualified operating temperature range.
Is P4KE220HE3/73 suitable for bidirectional transient suppression?
No, P4KE220HE3/73 is a unidirectional TVS diode, as indicated by the "A" suffix and absence of "CA" in its part number. It conducts only in reverse breakdown and must be oriented with cathode toward the protected line. For bidirectional protection, Vishay offers P4KE220CA variants - the P4KE220HE3/73 itself is not rated for symmetrical AC or dual-polarity surge suppression.
Does P4KE220HE3/73 meet automotive qualification standards?
Yes, P4KE220HE3/73 carries the HE3 suffix, which denotes AEC-Q101 qualification per Vishay's documentation (Document Number 88365, Revision 16-Sep-2021). This certification covers stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge, confirming suitability for automotive powertrain and body electronics applications.
What is the standoff voltage (VWM) of P4KE220HE3/73, and why does it matter?
The standoff voltage VWM of P4KE220HE3/73 is 185 V - the maximum DC or RMS voltage that can be continuously applied without exceeding 1.0 μA reverse leakage current. This parameter ensures the device remains non-conductive during normal operation while allowing sufficient margin below VBR (209–231 V) to avoid false triggering. Selecting VWM ≥1.1× system nominal voltage prevents nuisance conduction in P4KE220HE3/73 deployments.
How does the thermal resistance of P4KE220HE3/73 affect its surge handling capability?
P4KE220HE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, meaning each watt of dissipated surge energy raises the junction temperature by ~66 °C above lead temperature. Since its maximum junction temperature is 175 °C, this limits safe repetitive surge duty cycles - especially above 75 °C ambient. Engineers must reference Figure 2 in the datasheet to derate IPPM for elevated temperatures, ensuring P4KE220HE3/73 remains within thermal safety margins.
P4KE220HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 175V
- Voltage - Breakdown (Min):
- 198V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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)
P4KE220HE3/73 FAQ
1.How can I place an order for P4KE220HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE220HE3/73 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 P4KE220HE3/73 reliable?
The price and inventory of P4KE220HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE220HE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE220HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE220HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE220HE3/73?
P4KE220HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE220HE3/73 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 P4KE220HE3/73?
For technical support, including P4KE220HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE220HE3/73 requirements.
6.How does Aetrix verify that P4KE220HE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE220HE3/73 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 P4KE220HE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE220HE3/73?
All P4KE220HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE220HE3/73, 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 P4KE220HE3/73 part is unused and in its original packaging.
Return procedure for P4KE220HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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