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

Vishay General Semiconductor - Diodes Division 5KP110A-E3/51

Name: 5KP110A-E3/51
Brand: Vishay General Semiconductor - Diodes Division
SKU: 5KP110A-E3/51
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5KP110A-E3/51

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: P600, Axial

Datasheet:: 5KP110A-E3/51.pdf

Description:: TVS DIODE 110VWM 177VC P600

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Product details

Overview

5KP110A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 110 V standoff voltage (V_WM), 122–135 V breakdown range (V_BR at 5.0 mA), 177 V clamping voltage (V_C) at 28.2 A peak pulse current, and 5000 W peak pulse power (10/1000 µs). It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.

For engineers reviewing the 5KP110A-E3/51 datasheet, 5KP110A-E3/51 pinout, 5KP110A-E3/51 application, or 5KP110A-E3/51 equivalent, key selection criteria include unidirectional polarity, P600 package thermal performance, clamping ratio (V_C/V_BR ≈ 1.39), AEC-Q101 qualification, and 175 °C maximum junction temperature - critical for under-hood automotive and high-reliability industrial designs.

Technical Context

This device operates as a voltage-clamped crowbar-style protector: it remains high-impedance below V_WM = 110 V, avalanches sharply at V_BR = 122–135 V, and limits transients to ≤177 V at 28.2 A. Its P600 glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, supporting repetitive 0.01% duty cycle surges.

Thermal design relies on lead temperature derating: power dissipation drops from 8.0 W at T_L = 75 °C to zero at T_L = 175 °C. The 2.776 g molded epoxy body meets UL 94 V-0, and matte tin-plated leads comply with J-STD-002 solderability and JESD 201 class 1A whisker testing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	110 V - Maximum continuous reverse operating voltage before leakage exceeds 2 µA; defines safe DC bus rating.
V_BR (min/max)	122 V / 135 V at 5.0 mA - Tight 10.7% tolerance ensures predictable turn-on across production lots.
V_C @ I_PPM	177 V at 28.2 A (10/1000 µs) - Clamping level determines protected circuit's overvoltage margin.
P_PPM	5000 W - Sustains single high-energy surges typical of ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4.
T_J max.	175 °C - Enables operation in under-hood automotive environments without thermal shutdown.
Polarity	Unidirectional - Cathode band marked; blocks reverse conduction, suited for DC rail protection only.
AEC-Q101	Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT.

Pinout & Package

Package: P600 - Axial-leaded, molded epoxy case (9.5 mm length × 9.1 mm diameter), UL 94 V-0 rated, with cathode band marking. Designed for through-hole mounting and wave soldering (275 °C, 10 s max).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Low-side connection point	Connected to ground or low-voltage reference; carries full surge current during clamping.
Cathode	High-side connection point	Connected to protected line (e.g., 110 V DC bus); color band identifies this terminal.

Key Features

Feature	Design Value
5000 W peak pulse power	Withstands 10/1000 µs transients up to 28.2 A without failure - eliminates need for parallel TVS arrays in 24/48 V systems.
Low clamping ratio (V_C/V_BR ≈ 1.39)	Minimizes overvoltage stress on downstream MOSFETs and controllers during surge events.
AEC-Q101 qualification	Validated for automotive-grade reliability - supports use in engine control units, ADAS power modules, and body electronics.
UL 94 V-0 molding compound	Prevents flame propagation in fault conditions - required for safety-critical industrial and transportation applications.
Matte tin plating + JESD 201 class 1A	Ensures long-term solder joint integrity and mitigates tin whisker growth in high-humidity environments.

Applications

Automotive Power Rail Protection	Industrial DC Power Supply Output
Use Scenario: Protecting 110 V DC battery-fed circuits in commercial vehicle ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 110 V. Use Value: Limits transient voltage to ≤177 V, preventing damage to 200 V-rated MOSFETs and microcontrollers without requiring active crowbar circuitry.	Use Scenario: Safeguarding output stage of 110 V industrial switching power supply from inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff protector on secondary-side DC bus, absorbing energy from transformer leakage inductance and relay switching. Use Value: Withstands 5000 W pulses while maintaining <2 µA leakage at 110 V - preserves efficiency and avoids false triggering in regulated outputs.
Sensor Signal Line Protection	Telecom DC Feeder Protection
Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) connected to 110 V-powered industrial PLCs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage unidirectional clamp on signal return path, referenced to local ground. Use Value: 2 µA max reverse leakage at 110 V ensures minimal offset error in precision measurement circuits.	Use Scenario: Protecting -48 V to +110 V telecom DC feeder lines from induced surges during lightning strikes on outdoor cabling. IC Role / Device Role / Timing Role: High-power bidirectional-capable protection (used in unidirectional configuration with series blocking diode). Use Value: 175 °C junction rating allows operation in sealed outdoor cabinets without forced cooling.

Automotive Power Rail Protection

Industrial DC Power Supply Output

Use Scenario: Protecting 110 V DC battery-fed circuits in commercial vehicle ECUs against load dump and alternator transients.

IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 110 V.

Use Value: Limits transient voltage to ≤177 V, preventing damage to 200 V-rated MOSFETs and microcontrollers without requiring active crowbar circuitry.

Use Scenario: Safeguarding output stage of 110 V industrial switching power supply from inductive kickback and lightning-induced surges.

IC Role / Device Role / Timing Role: Standoff protector on secondary-side DC bus, absorbing energy from transformer leakage inductance and relay switching.

Use Value: Withstands 5000 W pulses while maintaining <2 µA leakage at 110 V - preserves efficiency and avoids false triggering in regulated outputs.

Sensor Signal Line Protection

Telecom DC Feeder Protection

Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) connected to 110 V-powered industrial PLCs from ESD and cable discharge events.

IC Role / Device Role / Timing Role: Low-leakage unidirectional clamp on signal return path, referenced to local ground.

Use Value: 2 µA max reverse leakage at 110 V ensures minimal offset error in precision measurement circuits.

Use Scenario: Protecting -48 V to +110 V telecom DC feeder lines from induced surges during lightning strikes on outdoor cabling.

IC Role / Device Role / Timing Role: High-power bidirectional-capable protection (used in unidirectional configuration with series blocking diode).

Use Value: 175 °C junction rating allows operation in sealed outdoor cabinets without forced cooling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ110A	Lower P_PPM (600 W), smaller SMB package, same V_WM/V_BR range	Not suitable for ISO 7637-2 Pulse 5a; limited to board-level ESD and lower-energy transients	Select when space-constrained and surge energy ≤600 W; requires PCB layout change.
1.5KE110A	Same V_WM/V_BR, but 1500 W P_PPM and DO-201 package; no AEC-Q101 qualification	Lacks automotive qualification and UL 94 V-0 housing; lower thermal mass reduces surge endurance	Select for cost-sensitive non-automotive industrial use where 1500 W suffices and AEC-Q101 is not mandated.

Compared with SMBJ110A and 1.5KE110A, the 5KP110A-E3/51 delivers 3.3× and 3.3× higher peak pulse power respectively, maintains AEC-Q101 compliance, and provides superior thermal robustness via its P600 package - making it the only option qualified for under-hood automotive surge protection at 110 V.

Availability

5KP110A-E3/51 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial DC power supply output safeguarding, and telecom DC feeder surge mitigation requiring stable component supply and long-lifecycle support.

Supply support for 5KP110A-E3/51 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 and AEC-Q qualification.

The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering 5 kW pulse handling in a ruggedized P600 package with AEC-Q101 validation.

FAQ

What is the clamping voltage of the 5KP110A-E3/51 under standard test conditions?

The 5KP110A-E3/51 has a maximum clamping voltage (V_C) of 177 V when subjected to its rated peak pulse current of 28.2 A using a 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by downstream components during surge events - critical for ensuring compatibility with 200 V-rated MOSFETs and controllers in 110 V systems.

Is the 5KP110A-E3/51 suitable for automotive applications?

Yes, the 5KP110A-E3/51 is AEC-Q101 qualified and explicitly validated for automotive use, including under-hood environments. Its 175 °C maximum junction temperature, UL 94 V-0 epoxy body, and robust P600 package enable reliable operation in engine control units, ADAS power modules, and commercial vehicle ECUs exposed to load dump and ISO 7637-2 transients.

What does the "E3/51" suffix indicate in 5KP110A-E3/51?

The "E3" denotes RoHS-compliant, commercial-grade packaging with matte tin-plated leads meeting JESD 201 class 1A whisker resistance. The "/51" specifies the preferred package code per Vishay's ordering system, indicating bulk packaging in ammo pack format (not tape-and-reel). This differs from /54 (tape-and-reel) and confirms the part's compliance with lead-free assembly requirements.

How does the 5KP110A-E3/51 compare to standard 1.5KE series TVS diodes?

The 5KP110A-E3/51 offers 3.3× higher peak pulse power (5000 W vs. 1500 W), a larger P600 package for improved thermal dissipation, AEC-Q101 qualification, and UL 94 V-0 compliance - whereas the 1.5KE110A uses a DO-201 package and lacks automotive qualification. Both share identical V_WM (110 V) and V_BR ranges, but only the 5KP110A-E3/51 meets stringent automotive surge immunity requirements.

Can the 5KP110A-E3/51 be used in bidirectional configurations?

No - the 5KP110A-E3/51 is unidirectional only, with a cathode band marking. It conducts only in reverse breakdown and blocks forward current beyond ~3.5 V. For bidirectional protection, two 5KP110A-E3/51 devices must be connected in series opposition, or a dedicated bidirectional TVS (e.g., 5KP110CA) should be selected instead.

5KP110A-E3/51 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: P600, Axial

Series:: TransZorb®

Packaging:: Bulk

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 110V

Voltage - Breakdown (Min):: 122V

Voltage - Clamping (Max) @ Ipp:: 177V

Current - Peak Pulse (10/1000µs):: 28.2A

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

5KP110A-E3/51 FAQ

1.How can I place an order for 5KP110A-E3/51 through Aetrix?

Please submit a Request for Quotation (RFQ) for 5KP110A-E3/51 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 5KP110A-E3/51 reliable?

The price and inventory of 5KP110A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP110A-E3/51 is usually 5 days.

3.What payment methods are accepted for 5KP110A-E3/51?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP110A-E3/51 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5KP110A-E3/51?

5KP110A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5KP110A-E3/51 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 5KP110A-E3/51?

For technical support, including 5KP110A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP110A-E3/51 requirements.

6.How does Aetrix verify that 5KP110A-E3/51 is sourced from the original manufacturer or authorized distributors?

All 5KP110A-E3/51 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 5KP110A-E3/51 meets industry standards.

7.What is the process for return or replacement of 5KP110A-E3/51?

All 5KP110A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP110A-E3/51, 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 5KP110A-E3/51 part is unused and in its original packaging.

Return procedure for 5KP110A-E3/51:

1.Submit a request within 90 days.

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

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