Vishay General Semiconductor - Diodes Division 5KP7.0A-E3/54

Overview

5KP7.0A-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.0 V stand-off voltage (V_WM), 7.78–8.60 V breakdown voltage (V_BR) at 50 mA, 5000 W peak pulse power (10/1000 μs), and clamps to ≤12.0 V at 417 A peak pulse current - enabling robust surge immunity in automotive and industrial power supplies.

For engineers reviewing the 5KP7.0A-E3/54 datasheet, 5KP7.0A-E3/54 pinout, 5KP7.0A-E3/54 application, or 5KP7.0A-E3/54 equivalent, this part delivers verified AEC-Q101 qualification, P600 package compatibility, low clamping ratio (VC/VBR ≈ 1.45), and 175 °C max junction temperature - critical for under-hood electronics, switching supply output protection, and IEC 61000-4-5 compliant designs.

Technical Context

The 5KP7.0A-E3/54 operates as a silicon avalanche diode with glass-passivated P600 package construction, optimized for high-energy transients induced by inductive load switching or lightning surges. Its unidirectional polarity and 7.0 V stand-off rating make it suitable for DC-biased protection where reverse conduction must be blocked until clamping threshold is exceeded.

It exhibits fast response time (<1 ns), low incremental surge resistance, and thermal stability up to 175 °C junction temperature. The device is rated for 5000 W peak pulse power (10/1000 μs waveform, 0.01% duty cycle), with derating above 25 °C per Fig. 2 and validated solderability per J-STD-002 and JESD 22-B102.

Key Specifications

Pinout & Package

Package: P600 molded epoxy case with matte tin-plated leads; cathode denoted by color band; RoHS-compliant (E3 suffix); UL 94 V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ7.0A and 1.5KE7.0A, the 5KP7.0A-E3/54 delivers 3.3× and 3.3× higher peak pulse power respectively, full AEC-Q101 validation, and tighter clamping - making it the sole choice for automotive load-dump and industrial 4 kV surge protection where reliability and energy handling are non-negotiable.

Availability

5KP7.0A-E3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial switching power supplies, telecom infrastructure power rails, and consumer appliance motor drives requiring stable component supply and long-lifecycle support.

Supply support for 5KP7.0A-E3/54 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, 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 DC power distribution networks - targeting automotive load-dump, industrial power supply outputs, and telecom infrastructure where 5 kW-level surge immunity is mandatory.

FAQ

What is the clamping voltage of the 5KP7.0A-E3/54 under maximum rated surge current?

The 5KP7.0A-E3/54 clamps to a maximum of 12.0 V when subjected to its rated peak pulse current of 417 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and guarantees protection of downstream 12 V-rated components such as microcontrollers, gate drivers, and PMICs without exceeding their absolute maximum ratings. The 5KP7.0A-E3/54 maintains this clamping performance across its qualified temperature range.

Is the 5KP7.0A-E3/54 suitable for automotive applications?

Yes, the 5KP7.0A-E3/54 is AEC-Q101 qualified and explicitly rated for automotive under-hood use, including engine control units, body control modules, and ADAS power supplies. Its 175 °C maximum junction temperature, robust P600 package, and validated performance under ISO 7637-2 Pulse 5a conditions confirm suitability. The 5KP7.0A-E3/54 meets stringent automotive reliability and thermal cycling requirements per the Vishay qualification report.

What does the "E3/54" suffix mean in 5KP7.0A-E3/54?

The "E3" suffix indicates RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/54" denotes the preferred packaging code - 13-inch diameter paper tape and reel, 800 units per reel. This ordering format ensures traceability, automated placement compatibility, and compliance with lead-free assembly standards. The 5KP7.0A-E3/54 is distinct from HE3 variants, which carry AEC-Q101 qualification.

How does the 5KP7.0A-E3/54 differ from bidirectional TVS diodes?

The 5KP7.0A-E3/54 is unidirectional, meaning it conducts only in reverse breakdown (cathode-to-anode) and blocks forward current like a standard diode. Bidirectional variants (e.g., 5KP7.0CA) conduct in both directions and are used for AC or floating signal lines. The 5KP7.0A-E3/54 is selected for DC-biased rails where reverse conduction must be strictly controlled - such as 12 V battery inputs - ensuring no unintended forward conduction during normal operation.

Can the 5KP7.0A-E3/54 replace older 1.5KE series TVS diodes?

The 5KP7.0A-E3/54 offers significantly higher peak pulse power (5000 W vs. 1500 W for 1.5KE7.0A) and lower clamping voltage (12.0 V vs. 12.6 V), but it is not a direct drop-in replacement due to differences in thermal design and mounting requirements. While electrically compatible in many circuits, the 5KP7.0A-E3/54 demands adequate PCB copper area for heat dissipation during repetitive surges. System validation is required before substituting the 5KP7.0A-E3/54 into legacy 1.5KE-based designs.