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Vishay General Semiconductor - Diodes Division P4KE36A-E3/54
- Part No.:
- P4KE36A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE36A-E3/54.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,976
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Product details
Overview
P4KE36A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on DC power rails and signal lines. It features 34.2 V minimum breakdown voltage (VBR), 30.8 V standoff voltage (VWM), 49.9 V maximum clamping voltage (VC) at 8.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE36A-E3/54 datasheet, P4KE36A-E3/54 pinout, P4KE36A-E3/54 application, or P4KE36A-E3/54 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, thermal derating above 25 °C, DO-41 lead-form compatibility with legacy PCB footprints, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device that remains high-impedance below VWM = 30.8 V and transitions rapidly (<1 ns) into low-impedance conduction once VBR ≥ 34.2 V is exceeded. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable breakdown behavior across temperature.
Thermal design relies on RθJL = 66 °C/W (junction-to-lead) and RθJA = 100 °C/W (junction-to-ambient, LLead = 10 mm), with power derating linearly from 1.5 W at 25 °C to zero at 175 °C junction temperature. The device sustains 40 A non-repetitive forward surge (8.3 ms half-sine) but is rated only for unidirectional transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; sets upper limit for protected circuit DC bias |
| VBR (min/max) | 34.2 V / 37.8 V at 1.0 mA - defines reliable conduction onset range; ensures clamping initiates before downstream IC damage threshold |
| VC @ IPPM | 49.9 V at 8.0 A - peak clamped voltage during 10/1000 μs surge; determines worst-case overvoltage seen by protected load |
| PPPM | 400 W - peak transient power handling capacity; validates suitability for ISO 7637-2 Pulse 1/2a/5a automotive test profiles |
| TJ max | +175 °C - maximum junction temperature; enables operation in under-hood automotive environments without forced cooling |
| IF surge | 40 A (8.3 ms half-sine) - unidirectional surge current rating; supports protection of MOSFET gate drivers against inductive kickback |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; cathode indicated by color band on body; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; establishes reference for clamping action when cathode is at higher potential |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 24 V rail or CAN_H); conducts surge current to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and <1.0 μA leakage at VWM, critical for low-power sensor interfaces |
| 400 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 Level 3 (1 kV line-to-line) and ISO 16750-2 Load Dump immunity requirements |
| AEC-Q101 qualified (E3 suffix variant) | Confirms reliability for automotive applications including engine control modules and ADAS camera power inputs |
| UL 94 V-0 molding compound | Meets flammability safety requirement for enclosed industrial enclosures and automotive junction boxes |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin for 3.3 V logic |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-clamping TVS diode placed between battery rail and local regulator input. Use Value: Clamps transients to ≤49.9 V, preventing damage to downstream 36 V-rated LDOs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure sensors exposed to inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Unidirectional transient suppressor on 4–20 mA loop output line. Use Value: Limits induced surges to <50 V while maintaining <1.0 μA leakage at 24 V nominal, preserving loop accuracy. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side DC bus protection in AC/DC adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on +12 V output rail prior to DC-DC converter. Use Value: Withstands 400 W pulses without degradation, enabling single-device protection instead of multi-stage designs. |
Use Scenario: Front-end protection for Ethernet PHY power pins in telecom base station line cards. IC Role / Device Role / Timing Role: Unidirectional clamp on 3.3 V auxiliary supply feeding Gigabit Ethernet transceivers. Use Value: Fast response (<1 ns) and low VC ensure PHY ICs remain within absolute maximum ratings during EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | DO-214AA package; 600 W PPPM; 58.1 V VC @ 10.3 A; surface-mount | Higher clamping voltage; requires PCB rework for SMD layout; better thermal dissipation in high-density boards | Select SMBJ36A when board space is constrained and thermal management via copper pour is available. |
| 1.5KE36A | DO-201AD package; 1500 W PPPM; 58.1 V VC @ 25.8 A; larger footprint and higher IPPM | Over-spec'd for 400 W use cases; introduces unnecessary cost and board area unless higher surge margin is required | Choose 1.5KE36A only if legacy designs mandate DO-201AD mechanical compatibility or require >1 kW surge headroom. |
Compared with P4KE36A-E3/54, SMBJ36A offers superior power density but raises clamping voltage by 8.2 V, while 1.5KE36A delivers triple the surge rating at the expense of size and cost - making P4KE36A-E3/54 optimal for cost-sensitive, through-hole automotive and industrial applications requiring precise 30–36 V standoff.
Availability
P4KE36A-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power rail protection requiring stable component supply and AEC-Q101-compliant surge suppression.
Supply support for P4KE36A-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 qualification.
The P4KE series targets cost-effective, high-volume transient suppression in automotive, industrial, and consumer power systems - delivering standardized DO-41 TVS performance with AEC-Q101 optionality and UL 94 V-0 safety compliance.
FAQ
What is the maximum clamping voltage of the P4KE36A-E3/54 under standard test conditions?
The P4KE36A-E3/54 has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the highest voltage the protected circuit will experience during a specified transient event. The P4KE36A-E3/54 maintains this clamping performance across its full operating temperature range from –55 °C to +175 °C.
Is the P4KE36A-E3/54 suitable for automotive applications?
Yes, the P4KE36A-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., P4KE36AHE3/54). The E3 suffix version is commercial-grade but shares identical electrical characteristics and DO-41 packaging. For automotive use, engineers must specify the HE3 variant to ensure qualification documentation and process controls required for under-hood deployment. The P4KE36A-E3/54 itself is not AEC-Q101 certified.
How does the P4KE36A-E3/54 differ from bidirectional TVS diodes like P4KE36CA?
The P4KE36A-E3/54 is unidirectional and functions only during reverse-biased overvoltage events, with a cathode band marking polarity. In contrast, P4KE36CA is bidirectional and clamps transients of either polarity, lacking polarity markings. The P4KE36A-E3/54 exhibits lower leakage (<1.0 μA at 30.8 V) than bidirectional variants at equivalent VWM, making it preferred for DC-coupled lines where reverse leakage could affect bias stability.
What is the thermal resistance profile of the P4KE36A-E3/54?
The P4KE36A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W with 10 mm lead length. These values enable direct thermal modeling for PCB layouts using axial-lead mounting. Derating follows a linear curve from 1.5 W at 25 °C ambient to zero at 175 °C junction temperature, as defined in Figure 5 of the Vishay datasheet 88365.
Can the P4KE36A-E3/54 be used in parallel for higher surge current handling?
No, the P4KE36A-E3/54 is not recommended for parallel operation due to VBR tolerance (34.2–37.8 V) causing current imbalance during clamping. Uneven sharing may result in one device absorbing disproportionate energy and failing prematurely. For higher surge capability, select a single higher-rated device such as 1.5KE36A or SMBJ36A rather than paralleling P4KE36A-E3/54 units.
P4KE36A-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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 8A
- 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)
P4KE36A-E3/54 FAQ
1.How can I place an order for P4KE36A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE36A-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 P4KE36A-E3/54 reliable?
The price and inventory of P4KE36A-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 P4KE36A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE36A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE36A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE36A-E3/54?
P4KE36A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE36A-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 P4KE36A-E3/54?
For technical support, including P4KE36A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE36A-E3/54 requirements.
6.How does Aetrix verify that P4KE36A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE36A-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 P4KE36A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE36A-E3/54?
All P4KE36A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE36A-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 P4KE36A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE36A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE36A-E3/54 Tags
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