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Vishay General Semiconductor - Diodes Division P4KE12AHE3/54
- Part No.:
- P4KE12AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE12AHE3/54.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,799
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Product details
Overview
P4KE12AHE3/54 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 12 V nominal breakdown voltage (VBR = 11.4–12.6 V at 1 mA), 10.2 V stand-off voltage (VWM), 16.7 V maximum clamping voltage at 24.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P4KE12AHE3/54 datasheet, P4KE12AHE3/54 pinout, P4KE12AHE3/54 application, or P4KE12AHE3/54 equivalent, this AEC-Q101 qualified TVS diode supports automotive-grade ESD and surge protection design where precise clamping, low leakage (<1.0 µA at VWM), and robust thermal performance (TJ = −55 to +175 °C) are required.
Technical Context
This device operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping under repetitive 10/1000 µs surges at 0.01% duty cycle.
It is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 0.078 %/°C temperature coefficient of VBR, and maintains 1.5 W steady-state power dissipation at TL = 75 °C - confirming suitability for thermally constrained PCB layouts in automotive and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - defines precise clamping onset window for reliable overvoltage detection |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage rises above 1.0 µA |
| VC @ IPPM | 16.7 V at 24.0 A - peak clamped voltage during 400 W transient, limiting downstream IC stress |
| IPPM | 24.0 A (10/1000 µs) - quantifies surge current handling capacity without degradation |
| PPPM | 400 W - peak pulse power capability compliant with IEC 61000-4-5 Level 4 surge immunity |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TC, and UHAST |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded, molded epoxy body with matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Ground reference terminal | Connected to system ground or low-impedance return path to complete clamping loop |
| Cathode (non-banded end) | Protected line connection | Connected in parallel to protected node (e.g., 12 V rail input) to divert surge current |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. epoxy-passivated alternatives |
| 400 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity for Level 4 (4 kV line-to-earth) in 12 V systems |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring extended reliability |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during fast transients, protecting sensitive 12 V logic interfaces |
| 1.0 µA max reverse leakage at VWM | Prevents excessive standby current drain in always-on automotive circuits |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V battery feed to body control module exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges up to 400 W. Use Value: Limits voltage to ≤16.7 V during 24 A transients, preventing damage to LDOs and microcontrollers rated for 16 V absolute max. |
Use Scenario: Analog output line (0–10 V) from pressure sensor in factory automation PLC I/O module. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress ESD and inductive switching noise. Use Value: Clamps fast transients within <1 ns while adding <0.5 pF capacitance, preserving signal integrity up to 1 MHz bandwidth. |
| Consumer Power Adapter Surge Guard | Telecom DC Power Interface |
Use Scenario: Secondary-side 12 V output of wall adapter powering smart home hub with USB-C PD negotiation. IC Role / Device Role / Timing Role: Primary overvoltage clamp on regulated output rail before USB-PD controller input. Use Value: Absorbs 400 W surges without latch-up, maintaining output regulation and avoiding brownout resets during lightning-induced spikes. |
Use Scenario: -48 V DC input to telecom base station remote radio unit exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Unidirectional TVS on supply rail referenced to local ground plane to limit negative-going transients. Use Value: Withstands 175 °C junction temperature and delivers 24 A clamping current, ensuring uptime in outdoor cabinet deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | DO-214AA package (SMB), 12 V VBR, 200 W PPPM, lower IPPM (16.7 A) | Surface-mount only; unsuitable for through-hole legacy designs or high-power derating needs | Select SMBJ12A only when board space is constrained and peak surge energy is ≤200 W. |
| 1.5KE12A | Same DO-41 package, 12 V VBR, but 1500 W PPPM and higher VC (20.1 V) | Higher clamping voltage reduces protection margin for 12 V logic; requires larger PCB trace width for 100 A surge | Choose 1.5KE12A only if system-level testing confirms 20.1 V clamping is acceptable and layout supports higher current routing. |
Compared with SMBJ12A and 1.5KE12A, P4KE12AHE3/54 offers optimal balance of 400 W surge capability, 16.7 V clamping, and AEC-Q101 qualification in a standard through-hole package - making it preferred for automotive and industrial designs requiring proven reliability and straightforward replacement of legacy DO-41 TVS devices.
Availability
P4KE12AHE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom DC power protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for P4KE12AHE3/54 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 and automotive-grade validation.
The P4KE12AHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be mitigated without compromising signal integrity.
FAQ
What is the breakdown voltage tolerance for P4KE12AHE3/54?
The P4KE12AHE3/54 has a specified breakdown voltage range of 11.4 V to 12.6 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 12 V rating. This tight VBR window ensures predictable clamping behavior in 12 V systems and is verified per ANSI/IEEE C62.35 standards.
Is P4KE12AHE3/54 suitable for automotive applications?
Yes, P4KE12AHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, matte tin-plated leads compliant with J-STD-002, and operation up to +175 °C junction temperature - meeting requirements for engine bay, body control, and infotainment power rail protection.
What does the "HE3/54" suffix mean in P4KE12AHE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/54" denotes packaging in 13-inch paper tape and reel with 5500 units per reel. This distinguishes it from commercial-grade "E3" variants and confirms automotive-grade traceability and reliability.
How does P4KE12AHE3/54 compare to bidirectional TVS diodes like P4KE12CA?
P4KE12AHE3/54 is unidirectional and intended for DC rail protection with polarity-sensitive placement (cathode to protected line); P4KE12CA is bidirectional and used for AC or floating signal lines. The unidirectional version offers lower leakage (<1.0 µA) and tighter VBR control, while P4KE12CA provides symmetric clamping but higher leakage above 10 V VWM.
What is the maximum clamping voltage of P4KE12AHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE12AHE3/54 is 16.7 V at 24.0 A peak pulse current (10/1000 µs waveform). This value is measured per Figure 1 in the datasheet and represents the worst-case voltage seen by downstream circuitry during a full-rated 400 W transient event.
P4KE12AHE3/54 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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 24A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE12AHE3/54 FAQ
1.How can I place an order for P4KE12AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE12AHE3/54 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 P4KE12AHE3/54 reliable?
The price and inventory of P4KE12AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE12AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE12AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE12AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE12AHE3/54?
P4KE12AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE12AHE3/54 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 P4KE12AHE3/54?
For technical support, including P4KE12AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE12AHE3/54 requirements.
6.How does Aetrix verify that P4KE12AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE12AHE3/54 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 P4KE12AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE12AHE3/54?
All P4KE12AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE12AHE3/54, 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 P4KE12AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE12AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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