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Vishay General Semiconductor - Diodes Division P4KE7.5-E3/73
- Part No.:
- P4KE7.5-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE7.5-E3/73.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,192
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Product details
Overview
P4KE7.5-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features a 7.13 V minimum breakdown voltage (VBR), 6.40 V maximum standoff 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 - deployed on power rails and I/O lines of automotive sensor modules and industrial control inputs.
For engineers reviewing the P4KE7.5-E3/73 datasheet, P4KE7.5-E3/73 pinout, P4KE7.5-E3/73 application, or P4KE7.5-E3/73 equivalent, this page delivers verified electrical parameters, DO-41 terminal mapping, real-world clamping behavior, and AEC-Q101-qualified alternatives for automotive-grade transient suppression design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <1.0 μA reverse leakage at 6.40 V, then rapidly avalanches when transient voltage exceeds 7.13 V to divert surge energy away from downstream ICs. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance.
The device complies with AEC-Q101 stress testing for automotive use and supports soldering per J-STD-002/JESD 22-B102. With 175 °C max junction temperature and 66 °C/W junction-to-lead thermal resistance, it sustains repetitive transients in thermally constrained PCB layouts without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min / max | 7.13 V / 7.88 V at 10 mA test current - defines precise avalanche initiation threshold for repeatable clamping onset |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 35.4 A - clamping voltage during 400 W 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 400 W - peak pulse power handling capability per single transient event, validated per REA standard |
| IFSM | 40 A - non-repetitive forward surge rating (8.3 ms half-sine), supporting inrush current immunity |
| TJ max | +175 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| RθJL | 66 °C/W - low thermal resistance from junction to lead supports reliable heat dissipation without heatsink |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or low-side return; conducts during positive transients when used in unidirectional configuration |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., 5 V rail); initiates breakdown when voltage exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity stress |
| 400 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 1/2a/3a surges and IEC 61000-4-5 Level 3 transients without degradation |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes overvoltage exposure to protected ICs - critical for 5 V logic and microcontroller I/O pins |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, ensuring reliability in high-vibration automotive assemblies |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between signal line and chassis ground, responding within <1 ns to suppress transients above 7.13 V. Use Value: Limits voltage seen by MAX14870 or TJA1042 transceivers to ≤11.3 V during 400 W surges, preventing latch-up and permanent damage. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff diode mounted at connector entry point, conducting only during >7.13 V events to divert energy to common ground plane. Use Value: Maintains <1.0 μA leakage at 24 V nominal, eliminating false triggering while clamping 1 kV/500 A transients to safe levels per IEC 61000-4-4. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V DC outputs of wall adapters and USB PD chargers exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed across output capacitor terminals to clamp fast-rising transients before reaching connected devices. Use Value: Clamps 10/1000 μs surges to 11.3 V with <1 ns response, preserving USB BC1.2 compliance and preventing damage to downstream PMICs like BQ24296. |
Use Scenario: Primary protection for Ethernet PHY interface circuits (e.g., DP83848) against ESD and induced surges on RJ45 magnetics secondary windings. IC Role / Device Role / Timing Role: Bidirectional-capable variant (P4KE7.5CA) not applicable here; unidirectional P4KE7.5-E3/73 used on DC bias lines feeding PoE injectors. Use Value: Withstands repeated 8 kV HBM ESD strikes and limits clamping overshoot to 11.3 V, ensuring IEEE 802.3af compliance without signal integrity impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower VBR (6.65–7.35 V), same DO-214AC package, 400 W rating, but 100 °C/W RθJA vs. 66 °C/W for P4KE7.5-E3/73 | Preferred for surface-mount boards with limited thermal relief; less effective in high-ambient or high-duty-cycle scenarios | Select SMAJ7.0A only when PCB layout mandates SMD placement and thermal mass is sufficient to manage junction temperature rise. |
| P4KE7.5HE3/73 | Identical electrical specs and DO-41 package, but AEC-Q101 qualified with JESD 201 Class 2 whisker resistance (vs. Class 1A for E3) | Required for safety-critical automotive zones (e.g., powertrain, braking); not necessary for commercial-grade industrial use | Choose P4KE7.5HE3/73 when full AEC-Q101 traceability and enhanced whisker resistance are mandated by OEM Tier 1 requirements. |
Compared with SMAJ7.0A, P4KE7.5-E3/73 offers superior thermal performance in through-hole designs, while P4KE7.5HE3/73 extends qualification rigor without altering clamping behavior - enabling direct substitution where automotive compliance is required.
Availability
P4KE7.5-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and consumer power adapter protection requiring stable component supply and AEC-Q101-aligned reliability.
Supply support for P4KE7.5-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The P4KE series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for robust, standardized transient suppression in harsh electromagnetic environments - from engine bays to factory floors.
FAQ
What is the clamping voltage of the P4KE7.5-E3/73 under a 400 W surge?
The P4KE7.5-E3/73 clamps to 11.3 V at its rated peak pulse current of 35.4 A, corresponding to a 400 W 10/1000 μs transient. This value is measured per REA-defined waveform and confirmed in the Vishay datasheet revision 16-Sep-2021, Document Number 88365. The clamping voltage remains stable across temperature due to the device's low temperature coefficient of 0.061 %/°C.
Is the P4KE7.5-E3/73 suitable for automotive applications?
Yes, the P4KE7.5-E3/73 is RoHS-compliant and manufactured to meet AEC-Q101 stress test requirements, as noted in the Vishay datasheet. It is widely deployed in automotive sensor modules, body control units, and infotainment power supplies where transient immunity to load dump and ISO 7637-2 pulses is mandatory. Its 175 °C max junction temperature supports under-hood operation.
How does the P4KE7.5-E3/73 differ from the P4KE7.5A-E3/73 variant?
The P4KE7.5-E3/73 and P4KE7.5A-E3/73 are identical in electrical specification, package, and marking - the "A" suffix denotes tighter VBR tolerance (±5% vs. ±10% for non-A variants), but Vishay's official documentation lists only P4KE7.5A in the electrical table and uses "P4KE7.5A" consistently. Thus, P4KE7.5-E3/73 is the commercial-grade part number referencing the P4KE7.5A device with E3 RoHS compliance and 73 taping option.
What is the reverse leakage current of the P4KE7.5-E3/73 at its maximum working voltage?
At its maximum standoff voltage of 6.40 V, the P4KE7.5-E3/73 exhibits a maximum reverse leakage current (ID) of 500 μA at 25 °C, as specified in the Vishay datasheet. This low leakage ensures minimal power loss in always-on circuits and avoids false triggering in high-impedance monitoring paths such as microcontroller ADC inputs or comparator reference nodes.
Can the P4KE7.5-E3/73 be used in bidirectional configurations?
No - the P4KE7.5-E3/73 is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., P4KE7.5CA). Using the unidirectional P4KE7.5-E3/73 in AC-coupled or floating signal lines would result in forward conduction during negative transients, potentially damaging the device or failing to suppress.
P4KE7.5-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE7.5-E3/73 FAQ
1.How can I place an order for P4KE7.5-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE7.5-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 P4KE7.5-E3/73 reliable?
The price and inventory of P4KE7.5-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 P4KE7.5-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE7.5-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE7.5-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE7.5-E3/73?
P4KE7.5-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE7.5-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 P4KE7.5-E3/73?
For technical support, including P4KE7.5-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE7.5-E3/73 requirements.
6.How does Aetrix verify that P4KE7.5-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE7.5-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 P4KE7.5-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE7.5-E3/73?
All P4KE7.5-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE7.5-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 P4KE7.5-E3/73 part is unused and in its original packaging.
Return procedure for P4KE7.5-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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