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Vishay General Semiconductor - Diodes Division P4KE36-E3/54
- Part No.:
- P4KE36-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE36-E3/54.pdf
- Description:
- TVS DIODE 29.1VWM 52VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,219
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Product details
Overview
P4KE36-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 34.2 V minimum breakdown voltage (VBR), 30.8 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 8.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines of automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE36-E3/54 datasheet, P4KE36-E3/54 pinout, P4KE36-E3/54 application, or P4KE36-E3/54 equivalent, key selection criteria include its 30.8 V working voltage, 49.9 V clamping performance under 8.0 A surge, DO-41 mechanical compatibility, AEC-Q101 qualification status (E3 suffix denotes commercial grade; HE3 required for automotive qualification), and unidirectional polarity marking via cathode band.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds VBR (34.2–37.8 V). Its glass-passivated junction enables fast response (<1 ns) and stable leakage (<1.0 μA at VWM), while thermal resistance RθJL = 66 °C/W supports reliable power dissipation during transient events.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity requirements when used with proper PCB layout. Its 175 °C maximum junction temperature and -55 °C to +175 °C operating range allow deployment in under-hood automotive and industrial environments where thermal cycling and ambient extremes are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 30.8 V - Maximum continuous reverse voltage before significant leakage; sets upper limit for normal circuit operation |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable clamping initiation |
| VC (Clamping Voltage) | 49.9 V at 8.0 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; defines protection margin |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability per single transient event without failure |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby current draw; avoids loading of high-impedance signal paths |
| TJ max. | +175 °C - Enables use in high-temperature environments such as engine control modules and motor drives |
| Package | DO-41 (DO-204AL) - Standard axial-leaded through-hole package with 0.375" lead length; UL 94 V-0 rated epoxy body |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, molded epoxy body over passivated silicon chip; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; cathode indicated by color band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge or bias |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V rail or CAN_H); initiates avalanche conduction when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage across temperature and lifetime |
| 400 W peak pulse power (10/1000 μs) | Withstands repetitive transients up to 0.01 % duty cycle without degradation |
| AEC-Q101 qualified variant available (HE3 suffix) | P4KE36HE3/54 meets automotive reliability standards; E3 suffix is commercial-grade only |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| UL 94 V-0 flammability rating | Molding compound self-extinguishes; satisfies safety requirements for enclosed industrial equipment |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and inductive kickback per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤49.9 V, preventing damage to downstream regulators and microcontrollers rated for 36 V absolute maximum. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) TVS connected between signal and ground to suppress EFT bursts without affecting calibration. Use Value: Maintains signal integrity during IEC 61000-4-4 level 4 testing (4 kV) due to sub-nanosecond response and minimal capacitance. |
| Consumer Power Adapter Input Stage | Telecom Line Interface Protection |
Use Scenario: Safeguarding primary-side rectifier outputs in AC/DC adapters subjected to lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Standoff-rated (30.8 V) TVS placed across bulk capacitor to clamp overvoltage before it reaches switching controller. Use Value: Absorbs 400 W pulses without thermal runaway, enabling compliance with UL 62368-1 surge withstand requirements. |
Use Scenario: Protecting RS-485 transceiver bus lines in base station backhaul equipment exposed to induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional-capable family member (P4KE36CA variant) used; unidirectional P4KE36-E3/54 applies to single-ended line references. Use Value: Clamps common-mode transients to <50 V, preserving transceiver differential swing and avoiding latch-up in half-duplex mode. |
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; 36 V VWM, 58.1 V VC at 6.9 A; surface-mount, higher VC than P4KE36-E3/54 | Requires PCB rework for SMT vs. through-hole; better suited for space-constrained consumer designs | Select SMBJ36A when board real estate is limited and thermal management allows higher VC margin |
| 1.5KE36A | DO-201AD package; same VWM/VBR specs but 1500 W PPPM rating; larger footprint and higher surge capacity | Used where higher-energy transients (e.g., ISO 16750-2) exceed 400 W capability | Choose 1.5KE36A for heavy-duty industrial or transportation applications requiring >1 kW surge handling |
Compared with SMBJ36A and 1.5KE36A, the P4KE36-E3/54 delivers optimal balance of proven DO-41 reliability, 400 W surge capability, and cost-effective through-hole assembly - ideal for mid-tier automotive and industrial control modules where legacy manufacturing and thermal derating margins align.
Availability
P4KE36-E3/54 is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial sensor interface protection, and telecom line surge suppression requiring stable component supply, RoHS-compliant sourcing, and consistent DO-41 mechanical form factor.
Supply support for P4KE36-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE series belongs to Vishay's TRANSZORB® TVS portfolio, engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where repeatable clamping performance and AEC-Q101 qualification matter.
FAQ
What is the clamping voltage of the P4KE36-E3/54 under standard test conditions?
The P4KE36-E3/54 has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) using the 10/1000 μs waveform. This value is measured per JEDEC standards and defines the highest voltage imposed on the protected circuit during a specified transient event. The P4KE36-E3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is the P4KE36-E3/54 qualified for automotive applications?
The P4KE36-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. It is not AEC-Q101 qualified; for automotive use, the P4KE36HE3/54 variant must be selected. The HE3 suffix confirms full AEC-Q101 stress testing including temperature cycling, humidity bias HAST, and accelerated life testing - essential for under-hood deployment where reliability is mission-critical.
How does the P4KE36-E3/54 differ from the P4KE36CA variant?
The P4KE36-E3/54 is unidirectional, with a cathode band marking and forward voltage drop (~3.5 V at 25 A), intended for DC rail protection. The P4KE36CA is bidirectional, lacking polarity marking and offering symmetrical clamping in both directions - used for AC lines or data buses like RS-485. Both share identical VWM (30.8 V), VBR (34.2–37.8 V), and VC (49.9 V) ratings, but their circuit integration differs fundamentally.
What is the maximum allowable junction temperature for the P4KE36-E3/54?
The P4KE36-E3/54 has a maximum junction temperature (TJ) of +175 °C, verified per thermal characterization curves in the Vishay datasheet. This rating enables operation in high-ambient environments such as engine compartments or enclosed industrial enclosures. Derating begins above 25 °C ambient, with power dissipation reduced linearly per the published PD vs. TL curve (Fig. 5).
Can the P4KE36-E3/54 replace the 1.5KE36A in an existing design?
No direct replacement: the P4KE36-E3/54 (400 W, DO-41) and 1.5KE36A (1500 W, DO-201AD) differ in surge rating, package size, and thermal resistance. Substituting P4KE36-E3/54 into a 1.5KE36A design risks failure under high-energy transients. If lower surge capacity is acceptable, mechanical adaptation (lead bending, hole spacing) is required due to DO-41 vs. DO-201AD footprint mismatch. Always validate with actual surge testing.
P4KE36-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 7.7A
- 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)
P4KE36-E3/54 FAQ
1.How can I place an order for P4KE36-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE36-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 P4KE36-E3/54 reliable?
The price and inventory of P4KE36-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 P4KE36-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE36-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE36-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE36-E3/54?
P4KE36-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE36-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 P4KE36-E3/54?
For technical support, including P4KE36-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE36-E3/54 requirements.
6.How does Aetrix verify that P4KE36-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE36-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 P4KE36-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE36-E3/54?
All P4KE36-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE36-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 P4KE36-E3/54 part is unused and in its original packaging.
Return procedure for P4KE36-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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