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Vishay General Semiconductor - Diodes Division P4KE7.5HE3/73
- Part No.:
- P4KE7.5HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE7.5HE3/73.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:6,923
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Product details
Overview
P4KE7.5HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on DC power rails and signal lines. It features a 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum stand-off voltage (VWM), 11.3 V clamping voltage (VC) at 35.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE7.5HE3/73 datasheet, P4KE7.5HE3/73 pinout, P4KE7.5HE3/73 application, or P4KE7.5HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical dimensions, thermal resistance data, and real-world use cases in automotive and industrial electronics where transient immunity to inductive switching and ESD is critical.
Technical Context
This TVS diode operates as a unidirectional clamping device with glass-passivated junction and low incremental surge resistance, enabling fast response (<1 ns) to voltage spikes. Its 66 °C/W junction-to-lead thermal resistance supports reliable power dissipation under repetitive surge conditions when mounted on PCB copper pours or leads.
The device complies with AEC-Q101 stress testing for automotive applications and uses matte tin-plated leads solderable per J-STD-002. Its 175 °C maximum junction temperature and -55 °C to +175 °C operating range allow deployment in under-hood and industrial control environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 6.40 V - maximum continuous reverse working voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 35.4 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform, validated for repetitive 0.01% duty cycle |
| RθJL | 66 °C/W - enables thermal design margin for lead-mounted operation without heatsink |
| TJ max. | +175 °C - supports high-temperature automotive and industrial ambient environments |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronic components |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with glass-passivated chip junction; matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during forward surge events |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential rail; initiates avalanche breakdown when VRM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable breakdown voltage and long-term reliability under thermal cycling and humidity |
| 400 W peak pulse power (10/1000 μs) | Handles common automotive load-dump and inductive-switching transients without degradation |
| AEC-Q101 qualification | Validated for automotive-grade deployment including engine control units and body electronics |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage exposure to protected MOSFETs, microcontrollers, and analog sensors |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting Hall-effect and crankshaft position sensors from load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between sensor supply line and ground. Use Value: Limits voltage to ≤11.3 V during 35.4 A surges, preventing latch-up or gate oxide damage in sensor ASICs. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels exposed to relay coil flyback. Use Value: Absorbs 400 W pulses without failure, maintaining signal integrity across 10,000+ surge cycles per IEC 61000-4-5. |
| Consumer Power Adapter Input | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side transient protection on AC/DC adapter outputs feeding USB-C PD controllers. IC Role / Device Role / Timing Role: Standoff-rated suppressor on 5 V–20 V output rails subject to hot-plug and cable discharge events. Use Value: Withstands 500 μA leakage at 6.40 V, ensuring no standby power loss while clamping ESD to <11.3 V. |
Use Scenario: Front-end protection for Ethernet PHY interfaces on telecom base station line cards. IC Role / Device Role / Timing Role: First-stage clamping device on 3.3 V or 5 V bias rails connected to RJ45 magnetics. Use Value: Fast <1 ns response captures fast-rising lightning-induced surges before reaching sensitive PHY ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | DO-214AA package; 7.0 V VWM, 11.2 V VC @ 35.7 A; 600 W PPPM | Higher power rating but larger footprint; better suited for board space-constrained designs needing >400 W margin | Select SMBJ7.0A when PCB layout allows SMC/SMB package and higher surge margin is required |
| 1.5KE7.5A | DO-201AD package; identical VBR/VWM/VC; 1500 W PPPM; higher IFSM (100 A) | Larger case size; intended for higher-energy industrial transients; not AEC-Q101 qualified | Choose 1.5KE7.5A for non-automotive applications requiring greater single-pulse energy absorption |
Compared with SMBJ7.0A and 1.5KE7.5A, the P4KE7.5HE3/73 offers AEC-Q101 qualification and DO-41 compatibility with legacy through-hole designs, making it optimal for cost-sensitive automotive and industrial replacements where footprint and qualification are decisive.
Availability
P4KE7.5HE3/73 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O terminals, and consumer power adapter designs requiring stable component supply with AEC-Q101 compliance and DO-41 through-hole mounting.
Supply support for P4KE7.5HE3/73 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, thermal performance, and automotive qualification.
The P4KE7.5HE3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments including automotive powertrain, industrial controls, and telecom infrastructure.
FAQ
What is the clamping voltage of P4KE7.5HE3/73 and how is it measured?
The P4KE7.5HE3/73 has a maximum clamping voltage (VC) of 11.3 V, measured at its rated peak pulse current (IPPM) of 35.4 A using a 10/1000 μs standard waveform. This value is guaranteed per Vishay's datasheet (Document Number 88365, Rev. 16-Sep-2021) and reflects the actual voltage seen by protected circuitry during worst-case surge events - critical for validating safe operation of downstream 5 V or 3.3 V ICs.
Is P4KE7.5HE3/73 suitable for automotive applications?
Yes, the P4KE7.5HE3/73 is AEC-Q101 qualified (as indicated by the HE3 suffix), meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and high-temperature reverse bias relevant to automotive electronics. Its -55 °C to +175 °C operating range and DO-41 package make it appropriate for engine control units, body control modules, and sensor interfaces in passenger vehicles and commercial vehicles.
How does the HE3 suffix differ from E3 in P4KE7.5HE3/73?
The HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates RoHS compliance and JESD 201 Class 1A whisker resistance only. For P4KE7.5HE3/73, the HE3 marking confirms full automotive-grade reliability validation - essential for mission-critical applications where field failure risk must be minimized, unlike commercial-grade E3 variants.
What is the thermal resistance of P4KE7.5HE3/73 and why does it matter?
The P4KE7.5HE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W. This parameter determines how effectively heat generated during surge events transfers from the silicon junction to the PCB leads. Lower RθJL enables higher sustained surge repetition rates and improves reliability in thermally constrained layouts - especially important in sealed automotive enclosures where airflow is limited.
Can P4KE7.5HE3/73 be used in bidirectional configurations?
No, P4KE7.5HE3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires a CA-suffixed part such as P4KE7.5CA. Using P4KE7.5HE3/73 in reverse-biased AC applications would result in forward conduction and potential failure; always verify polarity alignment in circuit schematics and PCB silkscreen for P4KE7.5HE3/73 placement.
P4KE7.5HE3/73 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):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 34.2A
- 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)
P4KE7.5HE3/73 FAQ
1.How can I place an order for P4KE7.5HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE7.5HE3/73 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 P4KE7.5HE3/73 reliable?
The price and inventory of P4KE7.5HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE7.5HE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE7.5HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE7.5HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE7.5HE3/73?
P4KE7.5HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE7.5HE3/73 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 P4KE7.5HE3/73?
For technical support, including P4KE7.5HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE7.5HE3/73 requirements.
6.How does Aetrix verify that P4KE7.5HE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE7.5HE3/73 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 P4KE7.5HE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE7.5HE3/73?
All P4KE7.5HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE7.5HE3/73, 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 P4KE7.5HE3/73 part is unused and in its original packaging.
Return procedure for P4KE7.5HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE7.5HE3/73 Tags
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