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Vishay General Semiconductor - Diodes Division P4KE7.5CHE3/73
- Part No.:
- P4KE7.5CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE7.5CHE3/73.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,243
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Product details
Overview
P4KE7.5CHE3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA test current, 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 power supply input stages.
For engineers reviewing the P4KE7.5CHE3/73 datasheet, P4KE7.5CHE3/73 pinout, P4KE7.5CHE3/73 application, or P4KE7.5CHE3/73 equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification, DO-41 mechanical compatibility, thermal resistance (RθJL = 66 °C/W), and clamping performance under repetitive surge conditions.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response overvoltage suppression. Its glass-passivated junction delivers low incremental surge resistance and sub-nanosecond response time, enabling effective protection against ESD, inductive switching spikes, and lightning-induced surges in DC power rails.
The P4KE7.5CHE3/73 is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient. Its 1.5 W steady-state power dissipation (PD) and 40 A 8.3 ms forward surge capability (IFSM) support robust operation in automotive-grade power conditioning circuits without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines reliable avalanche initiation threshold across production lot |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 μA |
| VC at IPPM | 11.3 V at 35.4 A - clamped voltage during 400 W transient, limiting downstream stress |
| IPPM | 35.4 A - peak surge current survivable with 10/1000 μs waveform at 0.01% duty cycle |
| PPPM | 400 W - standardized surge power handling per IEC 61000-4-5 Level 4 compliance margin |
| TJ max | +175 °C - enables placement near hot components in engine control units and industrial drives |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and HAST |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body; compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; carries full surge current during clamping |
| Cathode | Avalanche breakdown terminal | Marked end; referenced to system ground or higher-potential rail; determines unidirectional polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity for Level 4 (4 kV) in 50 Ω/42 Ω source impedance systems |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics with zero early-life failure in HTOL testing |
| Low clamping ratio (VC/VBR ≈ 1.49) | Minimizes overvoltage overshoot during fast transients, protecting 5 V logic interfaces and MOSFET gates |
| RθJL = 66 °C/W | Allows direct PCB mounting without thermal vias in space-constrained automotive modules |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 12 V battery-supplied microcontroller power rail from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before LDO regulator. Use Value: Withstands 35.4 A surge at 11.3 V clamping, preventing brownout or latch-up in ASIL-B safety-critical ECUs. |
Use Scenario: Shields 24 V digital input channel from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Front-end transient suppressor on optocoupler input side, before series current-limiting resistor. Use Value: 6.40 V VWM ensures no leakage during normal 24 V operation while clamping 1 kV/0.5 J transients. |
| Consumer Appliance Motor Drive Board | Telecom Base Station DC Power Distribution |
Use Scenario: Guards half-bridge gate driver ICs from inductive kickback during BLDC motor commutation. IC Role / Device Role / Timing Role: Local TVS across high-side MOSFET source-to-drain to absorb flyback energy. Use Value: Sub-ns response time limits VDS overshoot below 12 V, avoiding gate oxide rupture in 30 V-rated FETs. |
Use Scenario: Installed at -48 V telecom rectifier output to suppress coupling noise from adjacent RF amplifiers. IC Role / Device Role / Timing Role: Secondary-level protector after bulk MOV, providing precise clamping for sensitive PMICs. Use Value: 11.3 V clamping at 35.4 A ensures downstream DC-DC converters remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | DO-214AA package; 7.0 V VWM, 11.2 V VC at 35.7 A; 600 W PPPM | Higher surge rating but larger footprint; requires PCB re-layout | Select when higher power margin is needed and board space allows SMB package |
| 1.5KE7.5A | DO-201AD package; identical VBR/VC specs; 1.5 kW PPPM; higher IFSM (100 A) | Larger case size; not AEC-Q101 qualified; higher thermal mass | Choose for non-automotive industrial use where higher single-pulse robustness is prioritized over qualification |
Compared with SMBJ7.0A and 1.5KE7.5A, the P4KE7.5CHE3/73 offers AEC-Q101 validation and DO-41 compatibility in cost-sensitive automotive designs, trading peak power for qualification and footprint efficiency - making it optimal for ECU, body control, and ADAS sensor modules.
Availability
P4KE7.5CHE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial programmable logic controllers, and consumer appliance motor control requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for P4KE7.5CHE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P4KE7.5CHE3/73 belongs to Vishay's TransZORB® TVS family, engineered specifically for robust transient suppression in harsh environments including automotive power systems and industrial control cabinets.
FAQ
What is the polarity configuration of the P4KE7.5CHE3/73?
The P4KE7.5CHE3/73 is a unidirectional transient voltage suppressor diode, with cathode identified by a color band on the DO-41 body. It conducts only in reverse breakdown mode and must be oriented with cathode toward the higher-potential side of the protected line. This configuration ensures clamping action during positive transients on grounded systems or negative transients on positive-rail systems. The P4KE7.5CHE3/73 does not function as a bidirectional device.
Is the P4KE7.5CHE3/73 qualified for automotive applications?
Yes, the P4KE7.5CHE3/73 carries the HE3 suffix, indicating RoHS-compliant construction and full AEC-Q101 qualification per stress test requirements including high-temperature operating life, temperature cycling, and humidity testing. This makes the P4KE7.5CHE3/73 suitable for use in engine control units, body electronics, and ADAS sensor modules where automotive reliability standards apply.
What is the maximum clamping voltage of the P4KE7.5CHE3/73 under surge conditions?
The P4KE7.5CHE3/73 has a maximum clamping voltage (VC) of 11.3 V at its rated peak pulse current (IPPM) of 35.4 A, measured with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by downstream circuitry during a standardized surge event. The P4KE7.5CHE3/73 maintains this clamping performance without degradation up to 175 °C junction temperature.
How does the P4KE7.5CHE3/73 differ from the commercial-grade P4KE7.5A-E3/73?
The P4KE7.5CHE3/73 differs from the P4KE7.5A-E3/73 solely in qualification status: the "H" in HE3 denotes AEC-Q101 qualification, while the base E3 version is commercial grade only. Both share identical electrical characteristics (VBR, VWM, VC, PPPM), DO-41 packaging, and RoHS compliance. The P4KE7.5CHE3/73 undergoes additional stress screening required for automotive deployment, making it the appropriate choice for safety-critical vehicle systems.
What thermal performance can be expected from the P4KE7.5CHE3/73 in a typical PCB layout?
The P4KE7.5CHE3/73 exhibits a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W, enabling effective heat transfer through its axial leads into copper pours or chassis connections. In standard FR-4 PCBs with 10 mm lead length, it achieves a junction-to-ambient resistance (RθJA) of ~100 °C/W. This allows continuous 1.5 W power dissipation at 25 °C ambient and supports short-duration surge events without thermal runaway. The P4KE7.5CHE3/73 remains within safe operating limits even when mounted near other heat-generating components in compact modules.
P4KE7.5CHE3/73 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:
- -
- Bidirectional Channels:
- 1
- 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)
P4KE7.5CHE3/73 FAQ
1.How can I place an order for P4KE7.5CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE7.5CHE3/73 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 P4KE7.5CHE3/73 reliable?
The price and inventory of P4KE7.5CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE7.5CHE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE7.5CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE7.5CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE7.5CHE3/73?
P4KE7.5CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE7.5CHE3/73 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 P4KE7.5CHE3/73?
For technical support, including P4KE7.5CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE7.5CHE3/73 requirements.
6.How does Aetrix verify that P4KE7.5CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE7.5CHE3/73 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 P4KE7.5CHE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE7.5CHE3/73?
All P4KE7.5CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE7.5CHE3/73, 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 P4KE7.5CHE3/73 part is unused and in its original packaging.
Return procedure for P4KE7.5CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE7.5CHE3/73 Tags
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