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Vishay General Semiconductor - Diodes Division P4KE30A-E3/54
- Part No.:
- P4KE30A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE30A-E3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,489
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Product details
Overview
P4KE30A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features a 30 V breakdown voltage (VBR min/max = 28.5–31.5 V), 400 W peak pulse power (10/1000 μs), and clamps to ≤41.4 V at 9.7 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE30A-E3/54 datasheet, P4KE30A-E3/54 pinout, P4KE30A-E3/54 application, or P4KE30A-E3/54 equivalent, key selection criteria include standoff voltage (25.6 V), clamping ratio (1.38× VWM), AEC-Q101 qualification status, and DO-41 lead-form compatibility with legacy through-hole PCB layouts.
Technical Context
This unidirectional TVS operates as a voltage-clamping device triggered by transient overvoltage events exceeding its reverse standoff voltage (VWM = 25.6 V). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting MOSFET gates and microcontroller I/O pins against ESD and inductive switching spikes.
The device complies with AEC-Q101 for automotive use and supports repetitive surge duty cycles up to 0.01 % with 10/1000 μs waveform. Thermal resistance is RθJL = 66 °C/W (junction-to-lead), enabling reliable operation up to TJ = 175 °C without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA test current - defines precise conduction onset threshold for transient clamping |
| VWM | 25.6 V maximum - ensures stable blocking of normal operating voltage with <1 μA leakage |
| VC @ IPPM | 41.4 V at 9.7 A peak pulse - determines maximum voltage seen by protected circuit during worst-case surge |
| PPPM | 400 W (10/1000 μs waveform) - quantifies single-event energy absorption capability without failure |
| IFSM | 40 A (8.3 ms half-sine) - specifies maximum non-repetitive forward surge tolerance for unidirectional operation |
| TJ max | 175 °C - sets upper limit for junction temperature under continuous power dissipation and surge conditions |
| RθJL | 66 °C/W - enables thermal design of lead-mounted PCB traces for sustained 1.5 W power dissipation at TL = 75 °C |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; cathode indicated by color band on body. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V supply rail); color band identifies this end for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable VBR tolerance across temperature and life cycle |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity without derating in standard layouts |
| AEC-Q101 qualified (E3 suffix) | Validated for automotive under-hood applications including engine control modules and body electronics |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment enclosures |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., relay coil flyback) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between signal line and ground, activated only during negative transients exceeding VWM. Use Value: Limits voltage excursion to ≤41.4 V during 9.7 A surges, preventing damage to 3.3 V/5 V MCU GPIOs and analog front-ends. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to 24 V DC field wiring with inductive load switching. IC Role / Device Role / Timing Role: Standoff-blocking TVS connected across input terminals to shunt induced transients before reaching optocoupler input stage. Use Value: Withstands 40 A surge current (IFSM) and maintains 25.6 V standoff, ensuring reliable detection of valid 24 V logic high signals. |
| Power Supply Rail Clamping | Consumer Appliance Motor Control |
Use Scenario: Secondary-side overvoltage suppression on 12–24 V DC power rails feeding motor drivers and communication ICs in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor referenced to system ground, clamping positive-going spikes from switching regulator noise or back-EMF. Use Value: 400 W pulse rating handles repetitive 10/1000 μs surges from nearby contactor switching without degradation. |
Use Scenario: Surge protection for triac gate drive circuits and microcontroller reset lines in washing machines and HVAC fan controllers. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA at 25.6 V) unidirectional TVS placed across sensitive control nodes to prevent false triggering. Use Value: Glass passivation ensures long-term stability of VBR under thermal cycling, critical for 10+ year appliance lifetimes. |
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 | Surface-mount SMB package (vs. through-hole DO-41); same VBR range (28.5–31.5 V) but higher IPPM (13.3 A) and lower VC (48.4 V) | Requires PCB redesign for SMT placement; better suited for high-density consumer boards than legacy industrial through-hole designs | Select SMBJ30A when board space is constrained and reflow assembly is available; retain P4KE30A-E3/54 for manual repair, high-voltage creepage, or existing DO-41 footprints |
| 1.5KE30A | Same DO-41 package and unidirectional polarity, but higher PPPM (1500 W) and larger VC (48.4 V) at 31.2 A IPPM | Used where higher energy transients (e.g., lightning-induced surges) demand greater robustness, accepting higher clamping voltage | Choose 1.5KE30A for primary-level AC/DC input protection; P4KE30A-E3/54 remains optimal for secondary-side, low-clamp-voltage signal-line protection |
Compared with SMBJ30A and 1.5KE30A, P4KE30A-E3/54 delivers the best balance of low clamping voltage (41.4 V), proven DO-41 mechanical reliability, and AEC-Q101 qualification - making it ideal for cost-sensitive, high-volume automotive and industrial control applications requiring precise voltage limiting.
Availability
P4KE30A-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and 24 V DC power rail protection requiring stable component supply across multi-year production programs.
Supply support for P4KE30A-E3/54 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 and automotive-grade qualification.
The P4KE series was developed specifically for robust, cost-effective transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the standoff voltage rating of the P4KE30A-E3/54?
The P4KE30A-E3/54 has a maximum reverse standoff voltage (VWM) of 25.6 V, meaning it blocks voltages up to this level in normal operation while maintaining leakage current ≤1.0 μA. This value ensures compatibility with 24 V nominal systems where transient-free operation must be preserved below the clamping threshold. The P4KE30A-E3/54 achieves this with tight VBR tolerance (28.5–31.5 V) and stable thermal coefficient (0.097 %/°C).
Is the P4KE30A-E3/54 suitable for automotive applications?
Yes, the P4KE30A-E3/54 is AEC-Q101 qualified per its HE3 suffix variant, and the E3 version shares identical electrical and thermal specifications. It is widely deployed in automotive body control modules, sensor interfaces, and infotainment power supplies for protection against load dump, jump-start, and ESD events. Its DO-41 package provides mechanical robustness under vibration, and the 175 °C maximum junction temperature supports under-hood deployment.
How does the clamping voltage of P4KE30A-E3/54 compare to its breakdown voltage?
The P4KE30A-E3/54 clamps to 41.4 V at its rated 9.7 A peak pulse current (IPPM), which is 1.38× its VWM (25.6 V) and 1.31× its minimum VBR (28.5 V). This low clamping ratio ensures minimal overvoltage stress on downstream ICs - critical for safeguarding 3.3 V or 5 V logic interfaces. The device achieves this via low incremental surge resistance and glass-passivated junction uniformity.
What is the package type and lead finish of P4KE30A-E3/54?
The P4KE30A-E3/54 uses the DO-41 (DO-204AL) axial-leaded package with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1A whisker resistance. The E3 suffix confirms RoHS compliance and commercial-grade qualification; the package dimensions (1.0 inch minimum length, 0.205 inch body diameter) are standardized for wave and hand soldering with 275 °C/10 s maximum solder dip tolerance.
Can P4KE30A-E3/54 replace P4KE33A in an existing design?
Substituting P4KE30A-E3/54 for P4KE33A reduces the standoff voltage from 28.2 V to 25.6 V and lowers the clamping voltage from 45.7 V to 41.4 V - beneficial if tighter voltage margin is needed. However, verify that 25.6 V VWM still exceeds the maximum steady-state voltage in your circuit, including ripple and tolerance. Both share identical DO-41 packaging, thermal specs, and surge ratings, enabling drop-in replacement where voltage margins allow.
P4KE30A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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-E3/54 FAQ
1.How can I place an order for P4KE30A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE30A-E3/54 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-E3/54 reliable?
The price and inventory of P4KE30A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE30A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE30A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE30A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE30A-E3/54?
P4KE30A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE30A-E3/54 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-E3/54?
For technical support, including P4KE30A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE30A-E3/54 requirements.
6.How does Aetrix verify that P4KE30A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE30A-E3/54 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-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE30A-E3/54?
All P4KE30A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE30A-E3/54, 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-E3/54 part is unused and in its original packaging.
Return procedure for P4KE30A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE30A-E3/54 Tags
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