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Vishay General Semiconductor - Diodes Division P4KE82AHE3/54
- Part No.:
- P4KE82AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE82AHE3/54.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,509
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Product details
Overview
P4KE82AHE3/54 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 70.1 V stand-off voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 A peak pulse current (IPPM), and clamps transients to ≤113 V under 10/1000 μs waveform - deployed on power rails and signal lines of automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE82AHE3/54 datasheet, P4KE82AHE3/54 pinout, P4KE82AHE3/54 application, or P4KE82AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 400 W peak pulse power rating, low clamping ratio (VC/VBR ≈ 1.31), DO-41 mechanical compatibility, and 175 °C maximum junction temperature for under-hood reliability.
Technical Context
This TVS operates as a unidirectional avalanche clamp: reverse-biased during normal operation with <1.0 μA leakage at 70.1 V, then rapidly avalanches when transient voltage exceeds 77.9 V (min VBR). Its glass-passivated junction ensures stable breakdown and low dynamic impedance (<1.0 Ω incremental surge resistance).
It is rated for 400 W peak pulse power (10/1000 μs), derated linearly above 25 °C ambient per Fig. 2, and supports 40 A non-repetitive forward surge (8.3 ms half-sine). Thermal resistance is 66 °C/W junction-to-lead, enabling direct PCB trace heat sinking without external heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 70.1 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on before downstream IC damage. |
| VC (Clamping Voltage) | ≤113 V at 113 A IPPM - Peak voltage seen by protected circuit during worst-case surge; determines safe margin for 75 V-rated components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 μs) - Sustains high-energy transients like ISO 7637-2 Pulse 1/2a/5a; enables single-device protection without parallel staging. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Negligible standby power loss and no signal integrity impact on high-impedance sensor bias networks. |
| TJ max | 175 °C - Supports placement near hot components (e.g., power MOSFETs, DC/DC inductors) in automotive and industrial enclosures. |
| RθJL | 66 °C/W - Enables thermal design using PCB copper area as heatsink; 10 mm lead length assumed per JEDEC standards. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body. Leads conform to J-STD-002 and JESD 22-B102 solderability; RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional configuration; carries surge current to reference plane. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 72 V battery rail); avalanche conduction begins here when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per stress test plan. |
| Glass passivated junction | Eliminates surface contamination sensitivity and ensures long-term VBR stability across 15+ year service life. |
| 400 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Level IV and IEC 61000-4-5 Line-to-Line (2 Ω source) surge immunity requirements. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage stress on downstream 80 V-rated MOSFETs and gate drivers in 72 V systems. |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed control modules during fault-induced thermal runaway events. |
Applications
| Automotive Body Control Module (BCM) | Industrial 48–75 V DC Power Rail |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O against load dump and alternator ripple in BCMs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN line and chassis ground to clamp negative transients and suppress positive spikes up to 113 V. Use Value: Prevents latch-up and gate oxide damage in 5 V tolerant transceivers while maintaining <1 μA leakage during sleep mode. |
Use Scenario: Safeguarding DC/DC converter input stages in factory automation PLCs powered from 72 V nominal battery banks. IC Role / Device Role / Timing Role: Primary surge clamp on main input rail upstream of buck controller, triggered within <1 ns of overvoltage event. Use Value: Absorbs 400 W surges without degradation, enabling single-stage protection instead of multi-TVSS cascades - reducing BOM count and layout area. |
| Telecom Remote Radio Unit (RRU) Power Interface | EV Onboard Charger (OBC) Auxiliary Supply |
Use Scenario: Shielding 48 V auxiliary power inputs in outdoor RRUs from lightning-induced surges on PoE-like distribution lines. IC Role / Device Role / Timing Role: First-line defense against 10/1000 μs surges coupled via shared infrastructure; mounted directly at connector entry point. Use Value: Clamps to ≤113 V within nanoseconds, preserving 60 V-rated DC-DC controllers and isolators without derating. |
Use Scenario: Protecting 12 V auxiliary supply derived from high-voltage battery in OBC units during HV contactor switching transients. IC Role / Device Role / Timing Role: Unidirectional clamp on isolated 12 V output rail, referenced to secondary ground to avoid ground loop coupling. Use Value: Maintains <1 μA leakage at 70.1 V stand-off, eliminating quiescent current drain critical for vehicle "ready" state compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | DO-214AA package; 75 V VWM; 83.3–92.1 V VBR; 100 A IPPM; 100 W PPPM | Lower power rating and smaller footprint; suited for space-constrained consumer electronics, not automotive under-hood | Select SMBJ75A only if system surge energy ≤100 W and board space prohibits DO-41; not AEC-Q101 qualified. |
| 1.5KE82A | Same DO-41 package; identical VWM/VBR/VC specs; 1.5 kW PPPM (10/1000 μs); higher IPPM (131 A) | Higher surge capacity for MIL-STD-1275E or ISO 16750-2 severe load dump; larger thermal mass required | Choose 1.5KE82A when protecting against >400 W transients (e.g., heavy-duty truck systems); requires enhanced PCB copper for thermal management. |
Compared with SMBJ75A, P4KE82AHE3/54 offers AEC-Q101 qualification and higher thermal robustness for automotive use; compared with 1.5KE82A, it trades peak power for tighter thermal envelope and lower cost - ideal for validated 400 W surge environments like passenger vehicle BCMs.
Availability
P4KE82AHE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial 72 V power systems, telecom remote radio units, and EV onboard charger auxiliary supplies requiring stable component supply and AEC-Q101 compliance.
Supply support for P4KE82AHE3/54 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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective transient suppression in automotive, industrial, and telecom power and signal lines where AEC-Q101 compliance and 175 °C operation are mandatory.
FAQ
What is the maximum clamping voltage of the P4KE82AHE3/54 under standard test conditions?
The P4KE82AHE3/54 has a maximum clamping voltage (VC) of 113 V when subjected to its rated peak pulse current (IPPM) of 113 A using the 10/1000 μs waveform. This value is measured at the device terminals and represents the highest voltage the protected circuit will experience during a worst-case transient event. The clamping performance is guaranteed across the full operating temperature range and is integral to ensuring downstream components remain within their absolute maximum ratings.
Is the P4KE82AHE3/54 suitable for automotive applications?
Yes, the P4KE82AHE3/54 is explicitly AEC-Q101 qualified, as confirmed by Vishay's documentation and the HE3 suffix designation. It meets automotive-grade requirements for temperature cycling, mechanical shock, and long-term reliability under harsh conditions - including operation up to 175 °C junction temperature. Its 70.1 V stand-off and 113 V clamping make it appropriate for 72 V battery systems found in modern BCMs, ADAS domains, and EV auxiliary supplies.
What does the "HE3/54" suffix in P4KE82AHE3/54 indicate?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "54" specifies the preferred package code for 13-inch paper tape and reel packaging containing 5500 units. This ordering format ensures traceability, automotive-grade material compliance, and automated assembly readiness - distinguishing it from commercial-grade E3 variants.
How does the P4KE82AHE3/54 compare to bidirectional TVS diodes like P4KE82CA?
The P4KE82AHE3/54 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P4KE82CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The unidirectional P4KE82AHE3/54 provides lower leakage (<1.0 μA) and better performance on DC rails referenced to ground, while P4KE82CA suits AC-coupled or floating signal lines. They are not interchangeable without circuit review.
Can the P4KE82AHE3/54 be used in parallel for higher surge handling?
No - the P4KE82AHE3/54 is not characterized or recommended for parallel operation due to mismatch in VBR tolerance (±5% typical) and thermal coupling effects, which cause current imbalance and premature failure of one device. For higher surge capability, select a single higher-rated device such as 1.5KE82A or implement staged protection with upstream MOVs and downstream TVS, rather than paralleling P4KE82AHE3/54 units.
P4KE82AHE3/54 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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 3.5A
- 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)
P4KE82AHE3/54 FAQ
1.How can I place an order for P4KE82AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE82AHE3/54 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 P4KE82AHE3/54 reliable?
The price and inventory of P4KE82AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE82AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE82AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE82AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE82AHE3/54?
P4KE82AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE82AHE3/54 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 P4KE82AHE3/54?
For technical support, including P4KE82AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE82AHE3/54 requirements.
6.How does Aetrix verify that P4KE82AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE82AHE3/54 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 P4KE82AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE82AHE3/54?
All P4KE82AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE82AHE3/54, 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 P4KE82AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE82AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE82AHE3/54 Tags
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