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

Vishay General Semiconductor - Diodes Division 5KP8.0A-E3/73

Name: 5KP8.0A-E3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: 5KP8.0A-E3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5KP8.0A-E3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: P600, Axial

Datasheet:: 5KP8.0A-E3/73.pdf

Description:: TVS DIODE 8VWM 13.6VC P600

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Product details

Overview

5KP8.0A-E3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 5000 W peak pulse power (10/1000 μs), 8.0 V stand-off voltage (V_WM), 13.6 V maximum clamping voltage (V_C) at 368 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the 5KP8.0A-E3/73 datasheet, 5KP8.0A-E3/73 pinout, 5KP8.0A-E3/73 application, or 5KP8.0A-E3/73 equivalent, this device is selected for robust overvoltage protection in switching power supply outputs, automotive ECUs, and industrial sensor interfaces where fast response (<1 ns), low clamping ratio (V_C/V_WM = 1.7), and 175 °C junction temperature capability are critical.

Technical Context

This TVS diode operates as a voltage-clamped crowbar element during transients-triggering above its 8.89–9.83 V breakdown range (V_BR at 5.0 mA) to shunt surge energy away from downstream ICs and MOSFETs. Its glass-passivated P600 junction enables stable performance under repetitive 0.01% duty cycle surges and withstands 500 A non-repetitive forward surge (I_FSM).

Thermal design relies on lead-temperature-limited power dissipation (8.0 W at T_L = 75 °C) and requires adequate copper area per Vishay's derating curves. The unidirectional polarity-marked by cathode band-supports DC-biased rail protection without reverse leakage concerns beyond 200 μA at V_WM.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	8.0 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system operating margin.
V_BR (min/max)	8.89 V / 9.83 V at 5.0 mA - Confirmed breakdown threshold range; ensures predictable turn-on across production lots.
V_C @ I_PPM	13.6 V at 368 A (10/1000 μs) - Clamping voltage defines worst-case stress on protected circuit during full-rated surge.
P_PPM	5000 W - Peak pulse power rating determines survivability against lightning-induced or inductive-switching transients.
I_FSM	500 A (8.3 ms half-sine) - Forward surge rating validates robustness during accidental polarity reversal or fault conditions.
T_J max.	175 °C - Maximum junction temperature enables operation in under-hood automotive or high-ambient industrial environments.
Polarity	Unidirectional - Requires correct orientation on DC rails; cathode band denotes terminal connected to protected circuit ground.

Pinout & Package

5KP8.0A-E3/73 uses the industry-standard P600 axial-leaded package: molded epoxy body (UL 94 V-0), matte tin-plated leads solderable per J-STD-002, with cathode indicated by a color band. Lead length is 9.1–9.5 mm; body diameter is 9.1–9.5 mm; overall length is 25.4 mm min.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Connected to system ground or low-side reference	Completes conduction path during reverse-biased transient events; must be routed with low-inductance ground plane.
Cathode	Connected to protected line (e.g., +12 V rail)	Receives transient voltage; clamping occurs when cathode-to-anode voltage exceeds V_BR; marked by color band.

Key Features

Feature	Design Value
5000 W peak pulse power (10/1000 μs)	Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems without parallel staging.
AEC-Q101 qualified	Validated for automotive applications including engine control units and ADAS power domains with zero early-life failure requirements.
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for 5 V logic interfaces.
175 °C maximum junction temperature	Supports placement near heat-generating components (e.g., power MOSFETs) without thermal derating penalties in sealed enclosures.
RoHS-compliant E3 suffix	Meets JESD 201 Class 1A whisker resistance, ensuring long-term reliability in vibration-prone automotive and industrial mounting environments.

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: Protecting 12 V supply inputs of engine control modules (ECUs) against load dump and alternator ripple transients per ISO 16750-2. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between battery feed and input filter capacitor, acting as first-line defense before LDOs or DC/DC converters. Use Value: Withstands 5000 W surges while limiting clamped voltage to ≤13.6 V-preserving downstream 16 V-rated regulators and preventing brownout resets.	Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure sensors in factory automation PLCs exposed to relay coil kickback. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point to absorb inductive spikes before reaching op-amp signal conditioning stages. Use Value: 368 A peak pulse current rating handles >100 mJ energy transients; 13.6 V clamping prevents op-amp input stage damage and maintains loop accuracy.
Switching Power Supply Output Clamping	Telecom DC Feeder Protection
Use Scenario: Replacing crowbar SCR circuits on 5–24 V SMPS outputs to simplify overvoltage shutdown and enable automatic recovery after transient clearance. IC Role / Device Role / Timing Role: TVS connected across output capacitor to clamp overvoltage caused by feedback loop failure or sudden load removal. Use Value: 8.0 V V_WM aligns with nominal 9 V output rails; 13.6 V V_C ensures protected loads remain within safe operating area without triggering secondary shutdown.	Use Scenario: Protecting -48 V DC feeder lines in telecom base station cabinets from lightning-induced surges entering via outdoor cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS installed on each feeder leg upstream of DC/DC isolation modules to divert common-mode surges to chassis ground. Use Value: P600 package supports high-current PCB trace routing; 5000 W rating meets Telcordia GR-1089-CORE Level 3 surge immunity requirements.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: Protecting 12 V supply inputs of engine control modules (ECUs) against load dump and alternator ripple transients per ISO 16750-2.

IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between battery feed and input filter capacitor, acting as first-line defense before LDOs or DC/DC converters.

Use Value: Withstands 5000 W surges while limiting clamped voltage to ≤13.6 V-preserving downstream 16 V-rated regulators and preventing brownout resets.

Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure sensors in factory automation PLCs exposed to relay coil kickback.

IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point to absorb inductive spikes before reaching op-amp signal conditioning stages.

Use Value: 368 A peak pulse current rating handles >100 mJ energy transients; 13.6 V clamping prevents op-amp input stage damage and maintains loop accuracy.

Switching Power Supply Output Clamping

Telecom DC Feeder Protection

Use Scenario: Replacing crowbar SCR circuits on 5–24 V SMPS outputs to simplify overvoltage shutdown and enable automatic recovery after transient clearance.

IC Role / Device Role / Timing Role: TVS connected across output capacitor to clamp overvoltage caused by feedback loop failure or sudden load removal.

Use Value: 8.0 V V_WM aligns with nominal 9 V output rails; 13.6 V V_C ensures protected loads remain within safe operating area without triggering secondary shutdown.

Use Scenario: Protecting -48 V DC feeder lines in telecom base station cabinets from lightning-induced surges entering via outdoor cable runs.

IC Role / Device Role / Timing Role: Unidirectional TVS installed on each feeder leg upstream of DC/DC isolation modules to divert common-mode surges to chassis ground.

Use Value: P600 package supports high-current PCB trace routing; 5000 W rating meets Telcordia GR-1089-CORE Level 3 surge immunity requirements.

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	Lower peak pulse power (600 W), smaller SMB package, same V_WM/V_C profile but reduced I_PPM (65 A).	Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD); insufficient for load dump or lightning.	Select 5KP8.0A-E3/73 when protecting high-power rails requiring ≥368 A surge handling; choose SMBJ8.0A for space-constrained board-level ESD points.
1.5KE8.0A	Same P600 package and 5000 W rating, but higher V_C (14.5 V) and wider V_BR tolerance (6.4–7.6 V vs. 8.89–9.83 V).	Less precise clamping margin; may allow higher stress on 12 V logic during sustained surges.	5KP8.0A-E3/73 offers tighter V_BR and lower V_C, making it preferable for safety-critical automotive or industrial designs demanding consistent clamping behavior.

Compared with SMBJ8.0A and 1.5KE8.0A, the 5KP8.0A-E3/73 delivers superior clamping precision (±5.3% V_BR tolerance), lower clamping voltage (13.6 V vs. 14.5 V), and validated AEC-Q101 qualification-making it the optimal choice for automotive and high-reliability industrial power rail protection where surge energy and thermal stability are paramount.

Availability

5KP8.0A-E3/73 is available at Aetrix Electronics and suitable for automotive ECU power management, industrial sensor interface protection, and telecom DC feeder surge suppression requiring stable component supply across multi-year production cycles.

Supply support for 5KP8.0A-E3/73 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 high-reliability diodes, rectifiers, and protection devices with emphasis on automotive, industrial, and computing applications.

The 5KP series was engineered specifically for high-energy transient suppression on DC power rails-targeting replacement of complex crowbar circuits in switching power supplies and compliance with stringent automotive surge standards like ISO 16750-2.

FAQ

What is the clamping voltage of the 5KP8.0A-E3/73 under full-rated surge conditions?

The 5KP8.0A-E3/73 has a maximum clamping voltage (V_C) of 13.6 V when subjected to its rated peak pulse current of 368 A using the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and represents the upper limit of voltage seen by protected circuitry during worst-case transient events-critical for verifying compatibility with downstream 12 V or 15 V rated components in the 5KP8.0A-E3/73 application.

Is the 5KP8.0A-E3/73 suitable for automotive applications?

Yes, the 5KP8.0A-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units and ADAS power domains. Its 175 °C maximum junction temperature, robust P600 package, and validated performance under ISO 16750-2 load dump and pulse tests make it suitable for under-hood environments. The 5KP8.0A-E3/73 datasheet confirms compliance with automotive reliability and stress testing requirements.

How does the 5KP8.0A-E3/73 differ from the 1.5KE8.0A in practical design?

The 5KP8.0A-E3/73 offers tighter breakdown voltage tolerance (8.89–9.83 V vs. 6.4–7.6 V), lower clamping voltage (13.6 V vs. 14.5 V), and identical 5000 W peak pulse rating-but with improved thermal derating above 25 °C. Unlike the 1.5KE8.0A, the 5KP8.0A-E3/73 is AEC-Q101 qualified and optimized for modern automotive surge profiles. These differences directly impact protection margin and long-term reliability in the 5KP8.0A-E3/73 application.

What is the meaning of the "E3/73" suffix in 5KP8.0A-E3/73?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction meeting JESD 201 Class 1A whisker resistance, while "/73" specifies the packaging configuration: 73 denotes 800 pieces per 13-inch paper tape and reel. This format ensures compatibility with automated SMT placement equipment and traceable lot control-key for high-volume manufacturing programs using the 5KP8.0A-E3/73.

Can the 5KP8.0A-E3/73 be used in bidirectional configurations?

No, the 5KP8.0A-E3/73 is unidirectional only, as confirmed in the Vishay datasheet. It conducts only when the cathode is positive relative to the anode-making it appropriate for DC rail protection but unsuitable for AC line or bidirectional data line protection. For such applications, a dedicated bidirectional TVS like the 5KP8.0CA must be selected instead of the 5KP8.0A-E3/73.

5KP8.0A-E3/73 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:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: P600

5KP8.0A-E3/73 FAQ

1.How can I place an order for 5KP8.0A-E3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for 5KP8.0A-E3/73 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 5KP8.0A-E3/73 reliable?

The price and inventory of 5KP8.0A-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP8.0A-E3/73 is usually 5 days.

3.What payment methods are accepted for 5KP8.0A-E3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP8.0A-E3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5KP8.0A-E3/73?

5KP8.0A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5KP8.0A-E3/73 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 5KP8.0A-E3/73?

For technical support, including 5KP8.0A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP8.0A-E3/73 requirements.

6.How does Aetrix verify that 5KP8.0A-E3/73 is sourced from the original manufacturer or authorized distributors?

All 5KP8.0A-E3/73 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 5KP8.0A-E3/73 meets industry standards.

7.What is the process for return or replacement of 5KP8.0A-E3/73?

All 5KP8.0A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP8.0A-E3/73, 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 5KP8.0A-E3/73 part is unused and in its original packaging.

Return procedure for 5KP8.0A-E3/73:

1.Submit a request within 90 days.

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

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