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Vishay General Semiconductor - Diodes Division P4KE75HE3/73
- Part No.:
- P4KE75HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75HE3/73.pdf
- Description:
- TVS DIODE 60.7VWM 108VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,066
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Product details
Overview
P4KE75HE3/73 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 71.3 V minimum and 78.8 V maximum breakdown voltage (VBR) at 1 mA test current, 64.1 V stand-off voltage (VWM), 103 V clamping voltage (VC) at 3.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE75HE3/73 datasheet, P4KE75HE3/73 pinout, P4KE75HE3/73 application, or P4KE75HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical dimensions, clamping performance under surge conditions, and direct alternatives for automotive-grade transient suppression design-in.
Technical Context
The P4KE75HE3/73 operates as a unidirectional avalanche diode, triggering conduction when reverse voltage exceeds its specified VBR range (71.3–78.8 V). Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 64.1 V).
It delivers 400 W peak pulse power handling per 10/1000 μs waveform with 0.01% duty cycle, and exhibits 103 V clamping voltage at 3.9 A IPPM - enabling effective voltage limiting during ESD and load-dump transients in 12 V and 24 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage detection |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 103 V at 3.9 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W - peak surge power capability with 10/1000 μs waveform, critical for ISO 7637-2 Pulse 1/2a/5a immunity |
| TJ max | +175 °C - enables operation in under-hood automotive environments without thermal derating loss |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD per JESD22-A114 |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; color band denotes cathode end.
| 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 conduction terminal | Connected to protected line (e.g., 12 V rail); conducts during overvoltage to clamp voltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 400 W peak pulse power (10/1000 μs) | Withstands automotive load-dump surges up to ISO 7637-2 Pulse 5a without degradation |
| AEC-Q101 qualification | Validated for automotive use including HTSL, TC, and uHAST - supports Tier-1 ECU BOM compliance |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage margin between clamping and breakdown - improves system-level surge margin |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V supply inputs in engine control units against ISO 7637-2 load-dump transients up to 35 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC/DC input, conducting only during reverse overvoltage events. Use Value: Limits rail voltage to ≤103 V during 3.9 A surge, preventing damage to downstream PMICs and microcontrollers. | 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: Standby-mode protector connected across signal and ground, activated only during >64.1 V transients. Use Value: Clamps fast-rising ESD pulses (IEC 61000-4-2 ±8 kV contact) within nanoseconds while adding <1 pF capacitance. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Surge Suppression |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs from lightning-induced surges on mains-connected equipment. IC Role / Device Role / Timing Role: Secondary-side TVS placed after bridge rectifier to absorb residual differential-mode transients. Use Value: Absorbs 400 W energy bursts without failure, maintaining VWM margin above 64.1 V during normal 75 V DC output operation. | Use Scenario: Protecting -48 V DC telecom feeder lines from induced surges due to nearby lightning strikes or power cross events. IC Role / Device Role / Timing Role: Unidirectional suppressor mounted between feed line and chassis ground in central office power distribution units. Use Value: Withstands repetitive 10/1000 μs surges at 0.01% duty cycle while maintaining <1.0 μA leakage at nominal -48 V operation. |
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 | DO-214AA package; 75 V VBR min/max = 75–83.2 V; same 400 W PPPM, but lower VC = 121 V @ 3.3 A | Surface-mount alternative; requires PCB rework; better thermal dissipation via pad area | Select SMBJ75A for space-constrained SMT designs where leaded DO-41 layout is not feasible |
| 1.5KE75A | Same DO-41 package; higher PPPM = 1500 W; VBR = 71.3–78.8 V; VC = 121 V @ 12.3 A | Higher-energy surge handling; used in front-end protection stages prior to secondary clamps | Choose 1.5KE75A when system-level testing requires >400 W immunity (e.g., ISO 16750-2 Class IV) |
Compared with SMBJ75A and 1.5KE75A, the P4KE75HE3/73 offers AEC-Q101 qualification and optimized cost-performance balance for mid-tier automotive and industrial applications where 400 W clamping suffices and through-hole assembly is preferred.
Availability
P4KE75HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer power adapters, and telecom DC feeder protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P4KE75HE3/73 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 validation.
The P4KE75HE3/73 belongs to Vishay's TRANSZORB® TVS family - engineered specifically for high-reliability transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range of the P4KE75HE3/73?
The P4KE75HE3/73 has a guaranteed breakdown voltage (VBR) range of 71.3 V to 78.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in automotive and industrial systems where margin control is critical.
Is the P4KE75HE3/73 qualified for automotive applications?
Yes, the P4KE75HE3/73 carries the HE3 suffix indicating AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling (TC), and unbiased highly accelerated stress testing (uHAST), making it suitable for under-hood and body-control module applications per automotive OEM requirements.
What is the clamping voltage of the P4KE75HE3/73 under surge conditions?
The P4KE75HE3/73 clamps to a maximum of 103 V at 3.9 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events - essential for validating IC survivability in ISO 7637-2-compliant designs.
Does the P4KE75HE3/73 have polarity marking, and how is it identified?
Yes, the P4KE75HE3/73 is unidirectional and features a visible color band on the cathode end of the DO-41 package. This band must be oriented toward the higher-potential side (e.g., 12 V rail) during PCB placement. No marking is present on bidirectional variants, but the HE3 suffix confirms this part is unidirectional and AEC-Q101 qualified.
How does the P4KE75HE3/73 differ from the commercial-grade P4KE75A-E3/73?
The P4KE75HE3/73 differs from P4KE75A-E3/73 solely in qualification level: HE3 denotes AEC-Q101 qualification with extended reliability testing, while E3 indicates commercial-grade RoHS compliance only. Both share identical electrical specs, DO-41 packaging, and thermal ratings - but only P4KE75HE3/73 is approved for automotive production use.
P4KE75HE3/73 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:
- -
- 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)
P4KE75HE3/73 FAQ
1.How can I place an order for P4KE75HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75HE3/73 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 P4KE75HE3/73 reliable?
The price and inventory of P4KE75HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75HE3/73 is usually 5 days.
3.What payment methods are accepted for P4KE75HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75HE3/73?
P4KE75HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75HE3/73 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 P4KE75HE3/73?
For technical support, including P4KE75HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75HE3/73 requirements.
6.How does Aetrix verify that P4KE75HE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE75HE3/73 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 P4KE75HE3/73 meets industry standards.
7.What is the process for return or replacement of P4KE75HE3/73?
All P4KE75HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75HE3/73, 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 P4KE75HE3/73 part is unused and in its original packaging.
Return procedure for P4KE75HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE75HE3/73 Tags
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