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Vishay General Semiconductor - Diodes Division 5KP8.5AHE3_A/C
- Part No.:
- 5KP8.5AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP8.5AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:7,291
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Product details
Overview
5KP8.5AHE3_A/C from Vishay General Semiconductor is a unidirectional 5000 W transient voltage suppressor (TVS) diode in P600 package, with 8.5 V stand-off voltage (VWM), 9.44–10.4 V breakdown voltage (VBR), and 14.4 V clamping voltage (VC) at 347 A peak pulse current. It protects power supply outputs and automotive sensor signal lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the 5KP8.5AHE3_A/C datasheet, 5KP8.5AHE3_A/C pinout, 5KP8.5AHE3_A/C application, or 5KP8.5AHE3_A/C equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and P600 mechanical robustness for high-reliability industrial and automotive deployments.
Technical Context
This TVS diode uses a glass-passivated P600 chip junction optimized for 10/1000 μs waveform suppression. Its 5000 W peak pulse power rating and 347 A IPPM are validated under non-repetitive conditions with 0.01 % duty cycle, and it maintains stable clamping performance across -55 °C to +175 °C operating range.
The device features a color-banded cathode marking, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.5 V - maximum reverse voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 9.44 V / 10.4 V at 5 mA - precise breakdown threshold ensures predictable turn-on during transients |
| VC @ IPPM | 14.4 V at 347 A - clamping voltage limits downstream IC/MOSFET stress during 10/1000 μs surge |
| PPPM | 5000 W - peak pulse power handling capability for high-energy lightning and load-switching events |
| TJ max. | +175 °C - extended thermal range supports under-hood automotive and industrial power supply environments |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in circuit |
| IFSM | 500 A - surge current rating for 8.3 ms half-sine wave, enabling fuse/breaker coordination without device failure |
Pinout & Package
Package: P600 molded epoxy case with glass-passivated junction; UL 94 V-0 rated; 0.360" × 0.340" body (9.1 mm × 8.6 mm); 0.375" lead length (9.5 mm); color band denotes cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., DC output rail); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive MOSFETs |
| Very fast response time | Sub-nanosecond clamping onset enables protection of high-speed power stages and microcontroller I/O |
| 5000 W 10/1000 μs rating | Supports single-event surge handling without degradation, suitable for crowbar-circuit replacement |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint reliability in high-temperature, high-humidity automotive environments |
Applications
| Automotive Power Supply Protection | Industrial DC-DC Converter Output |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and jump-start transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between output rail and chassis ground to clamp positive surges above 14.4 V. Use Value: Prevents latch-up or destruction of downstream PMICs and microcontrollers during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding 24 V industrial PLC power rails against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across output capacitor to absorb repetitive 5000 W surges without thermal runaway. Use Value: Enables system uptime by avoiding fuse blowing or breaker tripping during normal operation with transient immunity. |
| Telecom AC/DC Adapter Output | Automotive Sensor Signal Line Protection |
Use Scenario: Shielding secondary-side 5 V/12 V outputs of telecom wall adapters from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated DC output, coordinated with upstream MOV and Y-cap filtering. Use Value: Meets IEC 61000-4-5 Level 3 (2 kV) surge immunity without derating or parallel devices. | Use Scenario: Guarding LIN bus or analog sensor inputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on signal line referenced to local ground, leveraging fast response. Use Value: Maintains signal integrity while suppressing ESD and ISO 10605 transients up to ±30 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.5A | 600 W rating, SMC package, lower IPPM (100 A), same VWM/VBR range | Not suitable for 5000 W lightning surges; limited to board-level ESD and low-energy transients | Select when space-constrained PCB layout and lower surge energy suffice |
| 1.5KE8.5A | 1500 W rating, DO-201 package, higher VF (3.5 V), same unidirectional polarity | Lacks AEC-Q101 qualification and thermal robustness for automotive under-hood use | Choose for cost-sensitive consumer power supplies where 175 °C operation is not required |
Compared with SMBJ8.5A and 1.5KE8.5A, the 5KP8.5AHE3_A/C delivers 3.3× and 3.3× higher peak pulse power respectively, supports automotive-grade reliability via AEC-Q101, and sustains operation at +175 °C-making it the only option for high-energy, high-temperature transient suppression in critical systems.
Availability
5KP8.5AHE3_A/C is available at Aetrix Electronics and suitable for automotive power distribution, industrial DC-DC converter outputs, and telecom adapter protection requiring stable component supply across multi-year production cycles.
Supply support for 5KP8.5AHE3_A/C 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, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in switching power supply outputs and automotive subsystems, targeting applications demanding >5 kW surge immunity and AEC-Q101 compliance.
FAQ
What is the clamping voltage of the 5KP8.5AHE3_A/C under standard test conditions?
The 5KP8.5AHE3_A/C has a maximum clamping voltage (VC) of 14.4 V when subjected to its rated peak pulse current (IPPM) of 347 A using a 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuits during surge events. The low VC ensures downstream components like MOSFETs and regulators remain within safe operating voltage margins.
Is the 5KP8.5AHE3_A/C suitable for automotive applications?
Yes, the 5KP8.5AHE3_A/C is AEC-Q101 qualified and explicitly designed for automotive use, including under-hood power distribution modules and engine control units. Its 175 °C maximum junction temperature, JESD 201 Class 2 whisker resistance, and robust P600 package meet stringent automotive reliability requirements. The HE3 suffix confirms full qualification per AEC-Q101 stress test protocols.
What does the "HE3_A/C" suffix indicate in 5KP8.5AHE3_A/C?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. "_A/C" specifies the preferred packaging code: 13-inch paper tape and reel, 800 units per reel. This ordering format ensures traceable, factory-standard delivery aligned with automated SMT assembly requirements for the 5KP8.5AHE3_A/C.
How does the 5KP8.5AHE3_A/C differ from standard 1.5KE or SMBJ series TVS diodes?
The 5KP8.5AHE3_A/C provides 5000 W peak pulse power-over three times that of the 1.5KE8.5A (1500 W) and more than eight times that of the SMBJ8.5A (600 W). It also features AEC-Q101 qualification, P600 package thermal mass for sustained surge handling, and higher IPPM (347 A vs. 100 A or 43 A), making the 5KP8.5AHE3_A/C uniquely suited for high-energy industrial and automotive transients.
Can the 5KP8.5AHE3_A/C replace crowbar circuits in power supplies?
Yes, the 5KP8.5AHE3_A/C is explicitly designed for crowbar-circuit replacement in switching power supply outputs. Its ability to withstand 5000 W surges while maintaining low clamping voltage allows upstream fuses or breakers time to clear faults-enabling system reset without component replacement. Vishay's application notes confirm this use case for the 5KP8.5AHE3_A/C in 12 V and 24 V DC systems.
5KP8.5AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.5V
- Voltage - Breakdown (Min):
- 9.44V
- Voltage - Clamping (Max) @ Ipp:
- 14.4V
- Current - Peak Pulse (10/1000µs):
- 347A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP8.5AHE3_A/C FAQ
1.How can I place an order for 5KP8.5AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP8.5AHE3_A/C 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 5KP8.5AHE3_A/C reliable?
The price and inventory of 5KP8.5AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP8.5AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP8.5AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP8.5AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP8.5AHE3_A/C?
5KP8.5AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP8.5AHE3_A/C 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 5KP8.5AHE3_A/C?
For technical support, including 5KP8.5AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP8.5AHE3_A/C requirements.
6.How does Aetrix verify that 5KP8.5AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP8.5AHE3_A/C 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 5KP8.5AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP8.5AHE3_A/C?
All 5KP8.5AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP8.5AHE3_A/C, 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 5KP8.5AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP8.5AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP8.5AHE3_A/C Tags
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