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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division 5KP8.0AHE3/73

Name: 5KP8.0AHE3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: 5KP8.0AHE3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5KP8.0AHE3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: P600, Axial

Datasheet:: 5KP8.0AHE3/73.pdf

Description:: TVS DIODE 8VWM 13.6VC P600

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Product details

Overview

5KP8.0AHE3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 8.0 V stand-off voltage, and 13.6 V clamping voltage at 368 A peak pulse current. It serves as primary overvoltage protection on DC power rails in automotive ECUs and industrial power supplies.

For engineers reviewing the 5KP8.0AHE3/73 datasheet, 5KP8.0AHE3/73 pinout, 5KP8.0AHE3/73 application, or 5KP8.0AHE3/73 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal derating behavior, clamping performance under surge, and RoHS-compliant packaging details - all critical for automotive-grade board-level ESD and lightning surge design validation.

Technical Context

The 5KP8.0AHE3/73 uses a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling precise clamping during high-dI/dt transients induced by inductive load switching. Its unidirectional polarity supports DC-biased rail protection without reverse conduction path concerns.

Rated for 175 °C maximum junction temperature and qualified to AEC-Q101, it sustains repetitive 0.01% duty-cycle surges while maintaining stable V_BR (8.89–9.83 V at 5.0 mA) and low leakage (<150 μA at 8.0 V). Power dissipation is limited to 8.0 W on infinite heatsink at 75 °C lead temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	8.0 V - Maximum continuous reverse operating voltage before breakdown; defines safe DC rail margin for 12 V systems.
V_BR @ I_T=5.0 mA	8.89–9.83 V - Breakdown voltage range confirming tight 10% tolerance; ensures predictable turn-on across production lots.
V_C @ I_PPM=368 A	13.6 V - Clamped voltage during 5000 W surge; limits downstream IC stress to safe levels in automotive power domains.
P_PPM	5000 W - Peak pulse power handling per 10/1000 μs waveform; meets ISO 7637-2 Pulse 5a/b surge immunity requirements.
I_FSM	600 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports crowbar-style fault clearing in power supply outputs.
T_J max.	175 °C - Maximum junction temperature; enables operation in under-hood automotive environments without thermal shutdown.
Package	P600 - Axial-leaded, molded epoxy case meeting UL 94 V-0; provides mechanical robustness and creepage/clearance for high-voltage isolation.

Pinout & Package

P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 class 2 whisker test (HE3 suffix).

Pin/Terminal	Circuit Role	Design Meaning
Anode	DC input / protected line connection	Connected to positive rail or signal source; conducts during forward surge events (e.g., reverse battery connection).
Cathode	Ground reference / clamp node	Connected to system ground; defines clamping threshold relative to ground; color band identifies this terminal.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock testing.
5000 W peak pulse power	Withstands ISO 7637-2 Pulse 5a (100 V, 500 ms) and Pulse 5b (100 V, 100 ms) without degradation when properly mounted.
Low clamping ratio (V_C/V_WM = 1.7)	Minimizes overvoltage overshoot during transients, protecting 12 V-rated MOSFETs and microcontrollers downstream.
RoHS-compliant HE3 suffix	Meets automotive material compliance standards including JESD 201 class 2 whisker resistance and halogen-free JEDEC JS709A.

Applications

Automotive Power Rail Protection	Industrial DC Power Supply Output
Use Scenario: Protecting engine control unit (ECU) 12 V input against load dump (ISO 7637-2 Pulse 5a) and alternator-induced spikes. IC Role / Device Role / Timing Role: Primary shunt TVS device placed directly across input terminals to clamp transients before they reach DC/DC converters and MCU power pins. Use Value: Limits peak voltage to ≤13.6 V during 368 A surge, preventing latch-up or gate oxide damage in downstream 16 V-rated components.	Use Scenario: Safeguarding output of 24 V industrial switching power supply against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Crowbar replacement that absorbs energy without short-circuiting, allowing upstream breaker to trip and system reset. Use Value: Sustains 600 A single-half-sine surge (8.3 ms), enabling controlled fault clearing instead of catastrophic failure.
Telecom Line Interface Protection	Consumer Appliance Motor Drive Input
Use Scenario: Shielding RS-485 transceiver power pins from EFT bursts and lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary overvoltage clamp on V_CC rail, coordinated with primary GDT or MOV stage for staged protection. Use Value: Fast <1 ns response ensures clamping initiates before transceiver IC internal protection triggers, reducing cumulative stress.	Use Scenario: Guarding BLDC motor driver input against back-EMF spikes during abrupt brake commands in smart washing machines. IC Role / Device Role / Timing Role: Unidirectional TVS placed between H-bridge high-side supply and ground to absorb regenerative energy. Use Value: 175 °C T_J max. allows reliable operation near hot motor windings without thermal derating penalties.

Automotive Power Rail Protection

Industrial DC Power Supply Output

Use Scenario: Protecting engine control unit (ECU) 12 V input against load dump (ISO 7637-2 Pulse 5a) and alternator-induced spikes.

IC Role / Device Role / Timing Role: Primary shunt TVS device placed directly across input terminals to clamp transients before they reach DC/DC converters and MCU power pins.

Use Value: Limits peak voltage to ≤13.6 V during 368 A surge, preventing latch-up or gate oxide damage in downstream 16 V-rated components.

Use Scenario: Safeguarding output of 24 V industrial switching power supply against inductive kickback from solenoid drivers.

IC Role / Device Role / Timing Role: Crowbar replacement that absorbs energy without short-circuiting, allowing upstream breaker to trip and system reset.

Use Value: Sustains 600 A single-half-sine surge (8.3 ms), enabling controlled fault clearing instead of catastrophic failure.

Telecom Line Interface Protection

Consumer Appliance Motor Drive Input

Use Scenario: Shielding RS-485 transceiver power pins from EFT bursts and lightning-induced surges on long cable runs.

IC Role / Device Role / Timing Role: Secondary overvoltage clamp on V_CC rail, coordinated with primary GDT or MOV stage for staged protection.

Use Value: Fast <1 ns response ensures clamping initiates before transceiver IC internal protection triggers, reducing cumulative stress.

Use Scenario: Guarding BLDC motor driver input against back-EMF spikes during abrupt brake commands in smart washing machines.

IC Role / Device Role / Timing Role: Unidirectional TVS placed between H-bridge high-side supply and ground to absorb regenerative energy.

Use Value: 175 °C T_J max. allows reliable operation near hot motor windings without thermal derating penalties.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ8.0AHE3/52	Lower PPPM (600 W), smaller SMB package, same V_WM/V_C but higher dynamic impedance.	Suitable for space-constrained PCBs with lower surge exposure (IEC 61000-4-5 Level 2).	Select when footprint and weight are critical and peak surge energy does not exceed 600 W.
1.5KE8.0A-E3/54	Same P600 package and V_WM, but lower PPPM (1500 W) and higher V_C (12.0 V @ 125 A).	Appropriate for cost-sensitive consumer designs where ISO 7637-2 compliance is not required.	Choose when full 5000 W capability is unnecessary and BOM cost reduction is prioritized.

Compared with SMBJ8.0AHE3/52 and 1.5KE8.0A-E3/54, the 5KP8.0AHE3/73 delivers 3.3× higher surge energy absorption and lower clamping voltage under identical current, making it the only option qualified for automotive load dump and industrial 4 kV surge immunity standards.

Availability

5KP8.0AHE3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply hardening, and telecom interface protection requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 5KP8.0AHE3/73 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, and protection devices with emphasis on reliability, AEC-Q qualification, and high-power handling.

The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting load dump, inductive switching, and lightning surge scenarios where standard TVS devices fail.

FAQ

What is the clamping voltage of the 5KP8.0AHE3/73 under maximum rated surge current?

The 5KP8.0AHE3/73 clamps to 13.6 V at its rated peak pulse current of 368 A (10/1000 μs waveform). This value is measured and guaranteed per JEDEC registered test conditions and reflects actual voltage seen by downstream circuitry during worst-case surge events. The low clamping ratio (V_C/V_WM = 1.7) ensures effective protection of 12 V-rated components without excessive overvoltage stress. This specification is confirmed in the Vishay 88308 datasheet Table on page 2.

Is the 5KP8.0AHE3/73 suitable for automotive applications?

Yes, the 5KP8.0AHE3/73 is AEC-Q101 qualified and explicitly designed for automotive use, including under-hood engine control units and body electronics. Its 175 °C maximum junction temperature, P600 package mechanical robustness, and ability to withstand ISO 7637-2 Pulse 5a/b load dump events make it appropriate for demanding automotive environments. The HE3 suffix confirms compliance with automotive material and whisker resistance requirements per JESD 201 class 2.

How does the 5KP8.0AHE3/73 differ from the 1.5KE8.0A-E3/54?

The 5KP8.0AHE3/73 offers 5000 W peak pulse power versus 1500 W for the 1.5KE8.0A-E3/54, and clamps at 13.6 V (vs. 12.0 V) but at more than double the current (368 A vs. 125 A), resulting in superior energy absorption. Both share the P600 package and 8.0 V stand-off, but only the 5KP8.0AHE3/73 is AEC-Q101 qualified and rated for automotive load dump. Their V_BR ranges also differ: 8.89–9.83 V vs. 8.4–9.3 V.

What is the meaning of the "HE3" suffix in 5KP8.0AHE3/73?

The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 class 2 whisker resistance. Specifically, "H" denotes AEC-Q101 qualification, "E3" signifies matte tin plating meeting J-STD-002 solderability and JESD 22-B102 thermal shock standards. This distinguishes it from commercial-grade "E3" variants and confirms suitability for automotive and high-reliability industrial use.

Can the 5KP8.0AHE3/73 be used in bidirectional configurations?

No, the 5KP8.0AHE3/73 is unidirectional only, as stated in the Vishay datasheet features section. It protects against positive-going transients on DC lines referenced to ground and cannot suppress negative surges unless paired with a second device or used in a specialized bridge configuration. For bidirectional protection, Vishay offers separate dual-diode packages like the SMAJ8.0CA, but those are not direct replacements for the 5KP8.0AHE3/73.

5KP8.0AHE3/73 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: P600, Axial

Series:: TransZorb®

Packaging:: Tape & Box (TB)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 8V

Voltage - Breakdown (Min):: 8.89V

Voltage - Clamping (Max) @ Ipp:: 13.6V

Current - Peak Pulse (10/1000µs):: 368A

Power - Peak Pulse:: 5000W (5kW)

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:: P600

5KP8.0AHE3/73 FAQ

1.How can I place an order for 5KP8.0AHE3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for 5KP8.0AHE3/73 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 5KP8.0AHE3/73 reliable?

The price and inventory of 5KP8.0AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP8.0AHE3/73 is usually 5 days.

3.What payment methods are accepted for 5KP8.0AHE3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP8.0AHE3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5KP8.0AHE3/73?

5KP8.0AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5KP8.0AHE3/73 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 5KP8.0AHE3/73?

For technical support, including 5KP8.0AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP8.0AHE3/73 requirements.

6.How does Aetrix verify that 5KP8.0AHE3/73 is sourced from the original manufacturer or authorized distributors?

All 5KP8.0AHE3/73 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 5KP8.0AHE3/73 meets industry standards.

7.What is the process for return or replacement of 5KP8.0AHE3/73?

All 5KP8.0AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP8.0AHE3/73, 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 5KP8.0AHE3/73 part is unused and in its original packaging.

Return procedure for 5KP8.0AHE3/73:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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