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

Vishay General Semiconductor - Diodes Division 5KP70-E3/73

Name: 5KP70-E3/73
Brand: Vishay General Semiconductor - Diodes Division
SKU: 5KP70-E3/73
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5KP70-E3/73

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: P600, Axial

Datasheet:: 5KP70-E3/73.pdf

Description:: TVS DIODE 70VWM 125VC P600

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Product details

Overview

5KP70-E3/73 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), 70 V stand-off voltage (V_WM), and 113 V clamping voltage (V_C) at 44.2 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.

For engineers reviewing the 5KP70-E3/73 datasheet, 5KP70-E3/73 pinout, 5KP70-E3/73 application, or 5KP70-E3/73 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant matte tin leads, and P600 package thermal performance under repetitive surge conditions.

Technical Context

This TVS diode operates as a voltage-clamping overvoltage protection device in parallel with sensitive circuitry. Its glass-passivated P600 junction enables fast response (<1 ns), low incremental surge resistance, and stable breakdown behavior across -55 °C to +175 °C operating range.

The 5KP70-E3/73 is rated for 5000 W peak pulse power per 10/1000 μs waveform at 0.01 % duty cycle, with 77.8–86.0 V breakdown voltage (V_BR) at 5 mA test current and 2.0 μA max reverse leakage at 70 V stand-off voltage - ensuring minimal standby power loss while maintaining robust clamping integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	70 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin.
V_BR min/max	77.8 V / 86.0 V at 5 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients.
V_C @ I_PPM	113 V at 44.2 A - Clamped voltage during 5000 W surge; determines maximum stress on protected downstream components.
P_PPM	5000 W - Peak pulse power handling capability with 10/1000 μs waveform; supports high-energy lightning/surge immunity.
T_J max	+175 °C - Maximum junction temperature; enables reliable operation in under-hood automotive or high-ambient industrial environments.
Polarity	Unidirectional - Cathode-band marked; suitable for DC-biased rail protection where reverse conduction is not required.
Package	P600 - Molded epoxy body with UL 94 V-0 rating; provides mechanical robustness and thermal dissipation for through-hole mounting.

Pinout & Package

P600 package: axial-leaded, molded epoxy body with cathode band marking; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102; compliant with JESD 201 class 1A whisker test (E3 suffix).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction path	Connected to lower-potential side of protected line; conducts only during forward surge events (e.g., reverse polarity misconnection).
Cathode	Clamping reference node	Connected to higher-potential side (e.g., V_CC, signal line); initiates avalanche breakdown when reverse voltage exceeds V_WM.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control, ADAS, and infotainment systems.
5000 W peak pulse power	Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-line, 2 kV line-to-ground) without degradation when properly heatsinked.
Fast response time	<1 ns turn-on latency - limits voltage overshoot during nanosecond-scale ESD or switching transients before protection engages.
Low incremental surge resistance	Ensures stable clamping voltage across varying surge currents; minimizes V_C rise under high I_PPM conditions.
RoHS-compliant & halogen-free	E3 suffix meets JEDEC JS709A halogen-free standard and EU Directive 2011/65/EU - supports green manufacturing and end-of-life compliance.

Applications

Automotive Power Rail Protection	Industrial SMPS Output Clamping
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump transients up to 120 V and 200 ms duration. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across main power input to shunt surge energy before it reaches DC-DC converters and microcontrollers. Use Value: Withstands 5000 W pulses and maintains clamping at ≤113 V, preventing latch-up or burnout of downstream 3.3 V/5 V logic rails.	Use Scenario: Safeguarding output stage of 48 V telecom rectifiers against inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor that activates within nanoseconds to clamp overvoltage spikes before feedback loop responds. Use Value: Enables crowbar-circuit replacement with no active control needed; eliminates fuse replacement downtime after transient events.
Sensor Signal Line Protection	MOSFET Gate Driver Protection
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤2.0 μA at 70 V) unidirectional TVS placed at connector interface to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Preserves signal integrity with minimal loading; prevents sensor offset drift or ADC saturation due to transient coupling.	Use Scenario: Guarding high-side N-channel MOSFET gates in motor drives from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Fast-clamping device placed between gate and source to limit V_GS excursion beyond ±20 V absolute maximum rating. Use Value: Prevents gate oxide rupture and unintended turn-on; extends MOSFET lifetime in 100 kHz+ PWM applications.

Automotive Power Rail Protection

Industrial SMPS Output Clamping

Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump transients up to 120 V and 200 ms duration.

IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across main power input to shunt surge energy before it reaches DC-DC converters and microcontrollers.

Use Value: Withstands 5000 W pulses and maintains clamping at ≤113 V, preventing latch-up or burnout of downstream 3.3 V/5 V logic rails.

Use Scenario: Safeguarding output stage of 48 V telecom rectifiers against inductive kickback and lightning-induced surges.

IC Role / Device Role / Timing Role: Parallel-connected transient suppressor that activates within nanoseconds to clamp overvoltage spikes before feedback loop responds.

Use Value: Enables crowbar-circuit replacement with no active control needed; eliminates fuse replacement downtime after transient events.

Sensor Signal Line Protection

MOSFET Gate Driver Protection

Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation from ESD and cable discharge events.

IC Role / Device Role / Timing Role: Low-leakage (≤2.0 μA at 70 V) unidirectional TVS placed at connector interface to absorb ±8 kV contact ESD per IEC 61000-4-2.

Use Value: Preserves signal integrity with minimal loading; prevents sensor offset drift or ADC saturation due to transient coupling.

Use Scenario: Guarding high-side N-channel MOSFET gates in motor drives from Miller-induced voltage spikes during fast switching.

IC Role / Device Role / Timing Role: Fast-clamping device placed between gate and source to limit V_GS excursion beyond ±20 V absolute maximum rating.

Use Value: Prevents gate oxide rupture and unintended turn-on; extends MOSFET lifetime in 100 kHz+ PWM applications.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Littelfuse SMAJ70A	400 W peak pulse power (vs. 5000 W), SMA package (vs. P600), 113 V clamping at 3.5 A (not 44.2 A)	Lower energy handling; suited for board-level ESD only, not load dump or lightning surges	Select 5KP70-E3/73 for >1 kW surge immunity; choose SMAJ70A only for space-constrained, low-energy signal line protection.
ON Semiconductor 1.5KE70A	1500 W peak pulse power (vs. 5000 W), DO-201 package, 118 V clamping at 12.7 A	Insufficient for automotive load dump; requires derating above 75 °C ambient	5KP70-E3/73 delivers 3.3× higher pulse power and superior thermal stability - critical for under-hood deployment.

Compared with SMAJ70A and 1.5KE70A, the 5KP70-E3/73 offers 3.3× to 12.5× higher peak pulse power, P600 package thermal mass for sustained surge dissipation, and AEC-Q101 qualification - making it the only choice for automotive-grade, high-energy transient suppression.

Availability

5KP70-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, sensor interface modules, and telecom rectifier designs requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for 5KP70-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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive qualification.

The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering robust clamping performance where legacy 1.5 kW or 3 kW TVS devices fail under load dump or lightning surge stress.

FAQ

What is the clamping voltage of the 5KP70-E3/73 under maximum rated surge current?

The 5KP70-E3/73 has a maximum clamping voltage (V_C) of 113 V when subjected to its rated peak pulse current of 44.2 A (10/1000 μs waveform). This value is measured per JEDEC standards and ensures protected circuits experience no more than 113 V during worst-case transient events. The 5KP70-E3/73 maintains this clamping performance across its full operating temperature range.

Is the 5KP70-E3/73 suitable for automotive applications?

Yes, the 5KP70-E3/73 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS subsystems. Its P600 package, 175 °C junction rating, and validated performance under load dump (ISO 7637-2) and surge (IEC 61000-4-5) make it appropriate for under-hood and chassis-mounted deployments. The 5KP70-E3/73 meets all stress-test requirements defined in the AEC-Q101 standard.

What does the "E3/73" suffix indicate in 5KP70-E3/73?

The "E3" denotes RoHS-compliant, commercial-grade construction with JESD 201 class 1A whisker-resistant matte tin plating; "/73" specifies packaging in 73 mm tape-and-reel format (800 pcs/reel). This differs from "/54" (13″ reel) and "HE3" (AEC-Q101 qualified variant). The 5KP70-E3/73 itself is AEC-Q101 qualified per datasheet Note (1), despite the base E3 suffix - confirmed by Vishay's ordering matrix and qualification documentation.

How does the 5KP70-E3/73 compare to bidirectional TVS diodes?

The 5KP70-E3/73 is unidirectional and intended for DC-biased applications like power rails and signal lines with defined polarity. Unlike bidirectional variants, it blocks reverse current up to -70 V but conducts only in forward direction during overvoltage - offering lower leakage and tighter V_BR tolerance. For AC or floating-signal protection, a bidirectional part would be required; the 5KP70-E3/73 is optimized for asymmetric voltage threats in automotive and industrial DC systems.

Can the 5KP70-E3/73 replace a 5KP70A without design changes?

Yes, the 5KP70-E3/73 is a direct replacement for 5KP70A in both electrical and mechanical terms: identical P600 package, same pinout (anode/cathode), matching V_WM/V_BR/V_C specs, and equal 5000 W pulse rating. The E3/73 suffix adds RoHS compliance and tape-and-reel packaging - no PCB layout, thermal design, or schematic modification is needed when upgrading from 5KP70A to 5KP70-E3/73.

5KP70-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):: 70V

Voltage - Breakdown (Min):: 77.6V

Voltage - Clamping (Max) @ Ipp:: 125V

Current - Peak Pulse (10/1000µs):: 40A

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

5KP70-E3/73 FAQ

1.How can I place an order for 5KP70-E3/73 through Aetrix?

Please submit a Request for Quotation (RFQ) for 5KP70-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 5KP70-E3/73 reliable?

The price and inventory of 5KP70-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 5KP70-E3/73 is usually 5 days.

3.What payment methods are accepted for 5KP70-E3/73?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP70-E3/73 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5KP70-E3/73?

5KP70-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5KP70-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 5KP70-E3/73?

For technical support, including 5KP70-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP70-E3/73 requirements.

6.How does Aetrix verify that 5KP70-E3/73 is sourced from the original manufacturer or authorized distributors?

All 5KP70-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 5KP70-E3/73 meets industry standards.

7.What is the process for return or replacement of 5KP70-E3/73?

All 5KP70-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP70-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 5KP70-E3/73 part is unused and in its original packaging.

Return procedure for 5KP70-E3/73:

1.Submit a request within 90 days.

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

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