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Vishay General Semiconductor - Diodes Division P4KE30A-E3/73
- Part No.:
- P4KE30A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE30A-E3/73.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,152
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Product details
Overview
P4KE30A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit protection against ESD and surge transients. It features 30 V breakdown voltage (VBR min/max: 28.5–31.5 V), 25.6 V standoff voltage (VWM), 400 W peak pulse power (10/1000 μs), 41.4 V clamping voltage at 9.7 A peak current, and operates from –55 °C to +175 °C - deployed on power rails and I/O lines of automotive sensor modules.
For engineers reviewing the P4KE30A-E3/73 datasheet, P4KE30A-E3/73 pinout, P4KE30A-E3/73 application, or P4KE30A-E3/73 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal resistance (RθJL = 66 °C/W), AEC-Q101 qualification status, DO-41 mechanical compatibility, and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of inductive switching spikes and lightning-induced transients. Its unidirectional configuration provides forward conduction path while clamping reverse surges above VWM, with VF = 3.5 V at 25 A per specification.
The device complies with AEC-Q101 stress testing for automotive use and supports soldering per JESD 22-B106 (275 °C, 10 s). Thermal derating follows a linear curve from 1.5 W at TL = 75 °C down to zero at TJ = 175 °C, with junction-to-lead thermal resistance fixed at 66 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - defines minimum and maximum voltage at which device enters avalanche conduction under 1 mA test current |
| VWM | 25.6 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 41.4 V at 9.7 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 400 W - peak pulse power handling capability under standard 10/1000 μs waveform |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine wave) |
| TJ max | +175 °C - maximum junction temperature, supporting under-hood automotive deployment |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for PCB copper pour design |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, epoxy-molded case with matte tin-plated leads. Cathode indicated by color band on one end; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side in unidirectional configuration; enables normal forward bias operation below VF = 3.5 V |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line; conducts reverse surge current when voltage exceeds VWM, clamping to ≤41.4 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity without external heat sinking |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump, relay bounce) |
| RoHS-compliant, whisker-tested (JESD 201 Class 1A) | Ensures solder joint integrity in high-vibration environments and reflow-compatible assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of automotive ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp surges exceeding 25.6 V. Use Value: Limits transient voltage to ≤41.4 V at 9.7 A, preventing damage to downstream DC/DC converters and microcontrollers. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amp input stages are overstressed. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Unidirectional TVS mounted after bridge rectifier to absorb positive-going transients on DC bus. Use Value: 400 W rating handles repetitive 10/1000 μs surges up to 0.01% duty cycle without thermal runaway. | Use Scenario: Protecting Ethernet PHY interface power pins in telecom base station line cards exposed to induced surges. IC Role / Device Role / Timing Role: TVS placed on 3.3 V or 5 V bias rail feeding magnetics and PHY ICs. Use Value: AEC-Q101 qualification and 175 °C TJ max ensure robustness in sealed, high-temperature enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | DO-214AA package (SMB), 30 V VBR, 600 W PPPM, RθJA = 40 °C/W | Higher power density but requires surface-mount layout; not axial-leaded | Select SMBJ30A when board space is constrained and SMT assembly is available. |
| 1.5KE30A | DO-201AD package, same VBR/VWM, 1500 W PPPM, higher IPPM (32.4 A) | Larger footprint and higher surge capacity; suited for industrial main power entry | Choose 1.5KE30A where higher single-event energy absorption is required and DO-41 size is insufficient. |
Compared with SMBJ30A and 1.5KE30A, the P4KE30A-E3/73 offers optimal balance of axial-leaded serviceability, AEC-Q101 compliance, and 400 W surge handling in compact DO-41 - making it preferred for cost-sensitive automotive and industrial repairable assemblies.
Availability
P4KE30A-E3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and consumer power adapter surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P4KE30A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P4KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for robust transient suppression in harsh environments including under-hood automotive, industrial controls, and telecom infrastructure.
FAQ
What is the clamping voltage of the P4KE30A-E3/73 under a 10/1000 μs surge?
The P4KE30A-E3/73 clamps to a maximum of 41.4 V when subjected to its rated peak pulse current of 9.7 A under the standardized 10/1000 μs waveform. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during surge events, ensuring protection of 3.3 V or 5 V logic interfaces when properly decoupled.
Is the P4KE30A-E3/73 suitable for automotive applications?
Yes, the P4KE30A-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use. Its operating junction temperature range of –55 °C to +175 °C, glass-passivated junction, and validated surge performance make it appropriate for engine control units, body control modules, and sensor front-ends where reliability under thermal cycling and electrical stress is mandatory.
How does the P4KE30A-E3/73 differ from bidirectional TVS diodes like P4KE30CA?
The P4KE30A-E3/73 is unidirectional and features a cathode band for polarity identification, conducting forward current below 3.5 V while clamping reverse surges above 25.6 V. In contrast, P4KE30CA is bidirectional with symmetrical clamping in both directions and no polarity marking - making P4KE30A-E3/73 ideal for DC power rail protection where forward conduction is acceptable, unlike AC or differential signal lines.
What is the maximum reverse leakage current of the P4KE30A-E3/73 at its standoff voltage?
At its maximum working voltage of 25.6 V (VWM), the P4KE30A-E3/73 exhibits a maximum reverse leakage current of 1.0 μA at 25 °C. This low leakage ensures minimal power loss in standby mode and avoids false triggering in high-impedance sensing circuits, supporting precision analog and battery-powered applications.
Can the P4KE30A-E3/73 be used in parallel for higher surge current handling?
No - the P4KE30A-E3/73 is not recommended for parallel operation due to manufacturing variations in breakdown voltage (28.5–31.5 V), which cause uneven current sharing and potential thermal runaway. For higher surge ratings, select a single higher-power device such as 1.5KE30A or use a TVS array with matched characteristics; always verify layout symmetry and thermal coupling if parallel use is unavoidable.
P4KE30A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P4KE30A-E3/73 FAQ
1.How can I place an order for P4KE30A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE30A-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 P4KE30A-E3/73 reliable?
The price and inventory of P4KE30A-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 P4KE30A-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE30A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE30A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE30A-E3/73?
P4KE30A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE30A-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 P4KE30A-E3/73?
For technical support, including P4KE30A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE30A-E3/73 requirements.
6.How does Aetrix verify that P4KE30A-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE30A-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 P4KE30A-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE30A-E3/73?
All P4KE30A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE30A-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 P4KE30A-E3/73 part is unused and in its original packaging.
Return procedure for P4KE30A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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