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Vishay General Semiconductor - Diodes Division P4KE8.2AHE3/54
- Part No.:
- P4KE8.2AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE8.2AHE3/54.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,619
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Product details
Overview
P4KE8.2AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features a 7.79 V minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 33.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and I/O lines of automotive sensor modules.
For engineers reviewing the P4KE8.2AHE3/54 datasheet, P4KE8.2AHE3/54 pinout, P4KE8.2AHE3/54 application, or P4KE8.2AHE3/54 equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification, DO-41 mechanical compatibility, 175 °C max junction temperature, and 200 μA reverse leakage at VWM - all critical for robust automotive and industrial transient suppression designs.
Technical Context
This device operates as a clamping-type TVS diode: under normal bias it presents high impedance (<200 μA leakage at 7.02 V), then rapidly transitions to low-impedance conduction when transient voltage exceeds its 7.79–8.61 V breakdown range. Its glass-passivated junction ensures stable VBR tolerance and repeatable clamping performance across temperature.
The P4KE8.2AHE3/54 delivers 400 W peak pulse power handling per 10/1000 μs waveform with <1 ns response time and low incremental surge resistance - enabling effective suppression of inductive switching spikes and lightning-induced surges without latch-up or thermal runaway in unprotected DC supply paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 12.1 V at 33.1 A - actual clamped voltage during 400 W transient, limiting downstream IC stress |
| IPPM | 33.1 A - peak surge current capability with 10/1000 μs waveform, supporting IEC 61000-4-5 Level 3 |
| PPPM | 400 W - standardized surge power rating confirming compliance with industrial transient immunity requirements |
| TJ max | 175 °C - enables operation in under-hood automotive environments without derating penalties |
| Leakage ID | 200 μA at VWM - ensures minimal standby power loss in always-on sensor supply rails |
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 2 whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 5 V rail or sensor output); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and long-term parameter stability under thermal/humidity stress |
| 400 W peak pulse power | Supports IEC 61000-4-5 4 kV surge testing on 2 Ω source impedance without failure |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage overshoot during fast transients, protecting 5 V logic interfaces and analog front-ends |
| DO-41 mechanical standardization | Enables drop-in replacement in legacy PCB footprints and compatibility with automated axial lead insertion equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to shunt transients before reaching sensitive interface ICs. Use Value: Limits clamped voltage to 12.1 V, preventing damage to 5 V-rated transceivers while maintaining signal integrity during 33.1 A surge events. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers against field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection element on 24 V DC input lines, activated only during >7.79 V transients to avoid false triggering. Use Value: Withstands repeated 400 W surges per IEC 61000-4-4, extending maintenance intervals and reducing unplanned downtime in harsh EMI environments. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V outputs of AC-DC adapters used in set-top boxes and network routers. IC Role / Device Role / Timing Role: Fast-response clamping device placed after rectification but before linear regulator or DC-DC converter input. Use Value: Clamps 10/1000 μs surges to ≤12.1 V within nanoseconds, preventing latch-up or burnout of downstream LDOs rated for 16 V absolute max. |
Use Scenario: Primary protection for Ethernet PHY power pins and auxiliary control lines in telecom base station management modules. IC Role / Device Role / Timing Role: Standby-mode protector on 3.3 V or 5 V bias rails feeding isolated communication ICs with limited surge margin. Use Value: 200 μA leakage at 7.02 V avoids loading low-current bias networks, while 175 °C TJ rating supports operation near heat-generating RF components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | DO-214AA package; 8.0 V VWM, 12.0 V VC at 32.4 A; 600 W PPPM | Higher power rating but surface-mount only; requires PCB redesign | Select when board space allows SMD layout and higher surge margin is required beyond 400 W |
| 1.5KE8.2A | DO-201AD package; identical VBR/VC specs but 1.5 kW PPPM; larger footprint and higher IFSM (50 A) | Greater surge endurance for infrequent high-energy events; not AEC-Q101 qualified | Choose for non-automotive industrial applications needing higher single-pulse robustness without qualification constraints |
Compared with SMBJ8.0A and 1.5KE8.2A, the P4KE8.2AHE3/54 uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and optimized 400 W clamping performance - making it the preferred choice for cost-sensitive, high-reliability automotive and industrial designs where legacy axial assembly remains in use.
Availability
P4KE8.2AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer power adapter secondary-side protection requiring stable component supply across multi-year production cycles.
Supply support for P4KE8.2AHE3/54 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 qualification.
The P4KE series targets cost-effective, high-volume transient protection in automotive, industrial, and consumer power systems - engineered for robustness under thermal cycling, humidity, and repetitive surge stress.
FAQ
What is the polarity configuration of P4KE8.2AHE3/54?
The P4KE8.2AHE3/54 is a unidirectional TVS diode, with the cathode identified by a color band on the DO-41 package body. This configuration allows it to clamp only reverse-voltage transients on positive-rail applications, such as 5 V or 12 V supply lines referenced to ground. Its unidirectional nature ensures no forward conduction during normal operation, preserving system efficiency and signal integrity in DC-coupled circuits.
Is P4KE8.2AHE3/54 qualified for automotive applications?
Yes, the HE3 suffix explicitly denotes AEC-Q101 qualification for P4KE8.2AHE3/54. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101 standard, making it suitable for under-hood and cabin ECU applications. This qualification is confirmed in the Vishay document 88365, revision 16-Sep-2021, footnote (1) on page 3.
What is the maximum clamping voltage of P4KE8.2AHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE8.2AHE3/54 is 12.1 V at 33.1 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88365 and represents the upper limit of voltage seen by downstream circuitry during a standardized surge event - critical for ensuring compatibility with 5 V logic interfaces.
How does the P4KE8.2AHE3/54 compare to bidirectional TVS diodes like P4KE8.2CA?
The P4KE8.2AHE3/54 is unidirectional and intended for DC rail protection where polarity is fixed, whereas P4KE8.2CA is bidirectional and suited for AC or differential signal lines. The P4KE8.2AHE3/54 offers tighter VBR tolerance (7.79–8.61 V vs. ±5 % symmetric for CA types) and lower leakage at VWM, but cannot suppress positive-going transients on grounded lines. Its design prioritizes precision clamping in single-polarity systems.
What is the thermal resistance and power derating behavior of P4KE8.2AHE3/54?
P4KE8.2AHE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient (RθJA) of 100 °C/W with 10 mm lead length. Its power dissipation derates linearly above 25 °C ambient, reaching zero at 175 °C - matching its maximum junction temperature rating. Full derating curves are provided in Figure 5 of Vishay document 88365.
P4KE8.2AHE3/54 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
P4KE8.2AHE3/54 FAQ
1.How can I place an order for P4KE8.2AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE8.2AHE3/54 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 P4KE8.2AHE3/54 reliable?
The price and inventory of P4KE8.2AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE8.2AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE8.2AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE8.2AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE8.2AHE3/54?
P4KE8.2AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE8.2AHE3/54 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 P4KE8.2AHE3/54?
For technical support, including P4KE8.2AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE8.2AHE3/54 requirements.
6.How does Aetrix verify that P4KE8.2AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE8.2AHE3/54 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 P4KE8.2AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE8.2AHE3/54?
All P4KE8.2AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE8.2AHE3/54, 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 P4KE8.2AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE8.2AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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