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Vishay General Semiconductor - Diodes Division P4KE75-E3/73
- Part No.:
- P4KE75-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75-E3/73.pdf
- Description:
- TVS DIODE 60.7VWM 108VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,891
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Product details
Overview
P4KE75-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level overvoltage protection. It features a 71.3 V minimum and 78.8 V maximum breakdown voltage (VBR) at 1.0 mA test current, 64.1 V standoff voltage (VWM), 1.0 μA max reverse leakage at VWM, and clamps transients to ≤103 V at 3.9 A peak pulse current - used to safeguard MOSFETs and IC power rails against inductive switching surges.
For engineers reviewing the P4KE75-E3/73 datasheet, P4KE75-E3/73 pinout, P4KE75-E3/73 application, or P4KE75-E3/73 equivalent, key selection criteria include its 400 W 10/1000 μs peak pulse power rating, DO-41 leaded package compatibility with through-hole PCB assembly, unidirectional polarity with cathode band marking, and AEC-Q101 qualification for automotive-grade reliability validation.
Technical Context
This device operates as a clamping-type TVS diode, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream components. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced surges.
The P4KE75-E3/73 is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient, with thermal resistance of 100 °C/W (junction-to-ambient, lead length = 10 mm). It supports 40 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits 0.105 %/°C temperature coefficient of VBR, enabling predictable performance across industrial temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1.0 mA - defines precise clamping onset threshold for overvoltage events |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | ≤103 V at 3.9 A - actual clamped voltage during 400 W transient, critical for protected IC VDS/VIN margin |
| PPPM | 400 W (10/1000 μs waveform) - peak surge energy handling capacity per industry-standard test condition |
| IFSM | 40 A (8.3 ms half-sine) - robustness against repetitive inductive turn-off spikes in motor drivers or relay circuits |
| TJ max | 175 °C - enables operation in under-hood automotive or high-temperature industrial enclosures without derating loss |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with matte tin-plated leads; RoHS-compliant (E3 suffix), JESD 201 Class 1A whisker-tested, UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., +12 V rail); conducts when transient exceeds VBR to shunt current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures tight VBR tolerance (±5%), stable leakage, and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Provides sufficient energy absorption for ISO 7637-2 Pulse 1/2a/5a automotive transients and IEC 61000-4-5 surge events |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive electronics use including body control modules and infotainment power supplies |
| Low clamping ratio (VC/VBR ≈ 1.30) | Minimizes voltage overshoot during clamping, preserving safe operating area of protected MOSFETs and regulators |
| Solderable per J-STD-002/JESD 22-B102 | Compatible with standard wave and reflow soldering processes without lead damage or delamination |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input capacitor to clamp surges before they reach LDOs or microcontrollers. Use Value: Withstands 400 W pulses and clamps to ≤103 V, maintaining compliance with ISO 16750-2 Level IV (35 V/100 ms) and SAE J1113-11 requirements. | Use Scenario: Safeguarding gate drivers and bus capacitors in 3-phase inverter stages against IGBT turn-off spikes. IC Role / Device Role / Timing Role: Mounted across DC link rails to suppress dV/dt-induced voltage overshoot during high-speed switching. Use Value: Fast <1 ns response and 40 A surge capability absorb repetitive commutation spikes without degradation. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Placed across output capacitor to prevent regulator latch-up or capacitor overvoltage during no-load transients. Use Value: 64.1 V VWM allows reliable operation at nominal 54 V output while clamping to 103 V during 400 W surges. | Use Scenario: Front-end protection of Ethernet PHY power pins against lightning-induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Connected between VDD and GND on powered device interface to divert common-mode transients. Use Value: DO-41 package enables manual repairability; 175 °C TJ rating supports sealed enclosure thermal profiles up to 85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Surface-mount SMB package (vs. through-hole DO-41); same VBR range (71.3–78.8 V), identical 400 W rating | Requires PCB redesign for SMT placement; better high-frequency impedance but lower manual serviceability | Select SMBJ75A when board space is constrained and automated assembly is used; P4KE75-E3/73 preferred for prototyping or field-replaceable modules. |
| 1.5KE75A | Higher 1500 W peak power rating (10/1000 μs); larger DO-201 package; same VBR and VWM specs | Used where single-event surge energy exceeds 400 W (e.g., outdoor telecom cabinets exposed to direct lightning coupling) | Choose 1.5KE75A only if validated surge testing requires >400 W margin; P4KE75-E3/73 offers optimal cost/size balance for standard automotive and industrial loads. |
Compared with SMBJ75A and 1.5KE75A, the P4KE75-E3/73 delivers proven DO-41 mechanical robustness, AEC-Q101 qualification, and drop-in compatibility with legacy through-hole designs - making it ideal for cost-sensitive, serviceable, and automotive-qualified power rail protection without layout change.
Availability
P4KE75-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, consumer power adapters, and telecom line card designs requiring stable component supply and long-lifecycle support.
Supply support for P4KE75-E3/73 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, TVS devices, and optoelectronics with emphasis on reliability and AEC-Q qualification.
The P4KE75-E3/73 belongs to Vishay's TRANSZORB® family of unidirectional TVS diodes, engineered specifically for robust, cost-effective overvoltage protection in automotive, industrial, and consumer power systems.
FAQ
What is the breakdown voltage tolerance of the P4KE75-E3/73?
The P4KE75-E3/73 has a specified breakdown voltage range of 71.3 V to 78.8 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 75 V rating. This tight VBR distribution is achieved via glass passivation and ensures consistent clamping behavior across production lots. The P4KE75-E3/73 datasheet confirms this range under "Electrical Characteristics" Table on page 2.
Is the P4KE75-E3/73 suitable for automotive applications?
Yes, the P4KE75-E3/73 is AEC-Q101 qualified (as noted in the "Mechanical Data" section and footnote (1) on page 3), making it suitable for automotive power rail protection including body control modules, lighting drivers, and infotainment system inputs. Its 175 °C maximum junction temperature and robust DO-41 construction align with under-hood thermal and mechanical requirements. The P4KE75-E3/73 meets these qualifications without requiring additional screening.
What is the clamping voltage of the P4KE75-E3/73 at its rated peak pulse current?
The P4KE75-E3/73 clamps to a maximum of 103 V at its rated peak pulse current of 3.9 A (10/1000 μs waveform), as specified in the "Electrical Characteristics" table. This VC value directly determines the maximum stress imposed on downstream components during surge events. Designers must verify that protected ICs or MOSFETs have voltage ratings exceeding 103 V to ensure safe operation with the P4KE75-E3/73.
Does the P4KE75-E3/73 have bidirectional capability?
No, the P4KE75-E3/73 is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). Its cathode is marked with a band, and it conducts only when the anode is negative relative to the cathode. Bidirectional variants (e.g., P4KE75CA) exist in the same family but are distinct part numbers. Using the P4KE75-E3/73 in AC-coupled or symmetrical surge environments would require external circuitry or a different device.
What is the thermal resistance of the P4KE75-E3/73?
The P4KE75-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W with lead length of 10 mm, and junction-to-lead resistance (RθJL) of 66 °C/W, per the "Thermal Characteristics" table on page 3. These values govern power derating above 25 °C ambient and inform heatsinking decisions. For example, at 75 °C ambient, the device's 1.5 W steady-state power dissipation must be reduced to ~0.75 W - though transient surge handling remains unaffected.
P4KE75-E3/73 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):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 108V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
P4KE75-E3/73 FAQ
1.How can I place an order for P4KE75-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75-E3/73 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 P4KE75-E3/73 reliable?
The price and inventory of P4KE75-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE75-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75-E3/73?
P4KE75-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75-E3/73 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 P4KE75-E3/73?
For technical support, including P4KE75-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75-E3/73 requirements.
6.How does Aetrix verify that P4KE75-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE75-E3/73 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 P4KE75-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE75-E3/73?
All P4KE75-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75-E3/73, 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 P4KE75-E3/73 part is unused and in its original packaging.
Return procedure for P4KE75-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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