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

Vishay General Semiconductor - Diodes Division P6KA27HE3/54

Name: P6KA27HE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: P6KA27HE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: P6KA27HE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: P6KA27HE3/54.pdf

Description:: TVS DIODE 21.8VWM 39.1VC DO204AC

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Product details

Overview

P6KA27HE3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping inductive switching transients and lightning-induced surges on power and signal lines. It features a 24.3 V minimum breakdown voltage (V_BR), 21.8 V standoff voltage (V_WM), 39.1 V maximum clamping voltage (V_C) at 15.3 A peak pulse current, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive use.

For engineers reviewing the P6KA27HE3/54 datasheet, P6KA27HE3/54 pinout, P6KA27HE3/54 application, or P6KA27HE3/54 equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature rating, low incremental surge resistance, fast response time, and compliance with IEC 61000-4-2/4-4/4-5 for board-level ESD and surge protection in harsh environments.

Technical Context

This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping performance across temperature. Its junction passivation enables reliable operation up to T_J = 185 °C and supports high-reliability automotive applications requiring AEC-Q101 qualification.

The device operates exclusively in unidirectional configuration with a cathode band marking, and delivers consistent clamping under repetitive 10/1000 μs surge waveforms at 0.01 % duty cycle. Its low V_F of 3.5 V at 50 A forward surge ensures minimal conduction loss during transient events.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	21.8 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown.
V_BR (min/max)	24.3 V / 29.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold.
V_C @ I_PPM	39.1 V at 15.3 A - Clamped voltage during 10/1000 μs surge; protects downstream ICs rated ≤36 V.
P_PPM	600 W - Peak pulse power handling capability; withstands automotive load dump and ISO 7637-2 pulses.
T_J max.	185 °C - Enables operation in under-hood automotive environments without derating penalties.
I_FSM	75 A - Non-repetitive forward surge current (8.3 ms half-sine); supports high-energy inductive kickback absorption.
Polarity	Unidirectional - Cathode-banded configuration; suitable for DC power rail protection only.

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. HE3 suffix indicates RoHS-compliant, AEC-Q101 qualified, and JESD 201 Class 2 whisker-tested construction.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry / Surge return path	Connected to ground or low-impedance return plane; completes clamping loop during transient events.
Cathode	Protected line connection / Clamping node	Connected to the line being protected (e.g., 24 V rail); conducts when V_AK exceeds V_BR.

Key Features

Feature	Design Value
Junction passivation	Enables stable leakage and clamping performance over 185 °C junction temperature and long-term reliability.
AEC-Q101 qualification	Validated for automotive-grade stress testing including HTGB, HTRB, and temperature cycling per AEC standard.
600 W peak pulse power (10/1000 μs)	Meets ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity requirements.
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive ICs.
Solder dip tolerance	Withstands 275 °C for 10 s per JESD 22-B106, supporting lead-free reflow and wave soldering processes.

Applications

Automotive Power Rail Protection	Industrial Sensor Signal Line Protection
Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and local regulator input. Use Value: Limits transient voltage to ≤39.1 V, preventing damage to downstream 36 V-rated LDOs and microcontrollers.	Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on sensor output node, referenced to system ground. Use Value: Maintains signal integrity with <1 nA leakage at 21.8 V while clamping 8 kV contact ESD per IEC 61000-4-2.
Telecom DC Power Feeding	Consumer Appliance Motor Drive Protection
Use Scenario: Safeguarding PoE-powered remote units (e.g., IP cameras) fed via 48 V DC from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on the DC input stage upstream of DC/DC converter. Use Value: Absorbs 600 W surges without degradation, preserving converter uptime and eliminating need for redundant protection stages.	Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Flyback suppression diode mounted across motor terminals, oriented to conduct during negative voltage reversal. Use Value: Withstands 75 A single-half-sine surge (8.3 ms), preventing MOSFET failure and reducing radiated emissions.

Automotive Power Rail Protection

Industrial Sensor Signal Line Protection

Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) against load dump and alternator transients per ISO 7637-2.

IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and local regulator input.

Use Value: Limits transient voltage to ≤39.1 V, preventing damage to downstream 36 V-rated LDOs and microcontrollers.

Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors from ESD and cable discharge events.

IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on sensor output node, referenced to system ground.

Use Value: Maintains signal integrity with <1 nA leakage at 21.8 V while clamping 8 kV contact ESD per IEC 61000-4-2.

Telecom DC Power Feeding

Consumer Appliance Motor Drive Protection

Use Scenario: Safeguarding PoE-powered remote units (e.g., IP cameras) fed via 48 V DC from induced surges on outdoor cabling.

IC Role / Device Role / Timing Role: Primary overvoltage clamp on the DC input stage upstream of DC/DC converter.

Use Value: Absorbs 600 W surges without degradation, preserving converter uptime and eliminating need for redundant protection stages.

Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in home appliances (e.g., washing machine drum drives).

IC Role / Device Role / Timing Role: Flyback suppression diode mounted across motor terminals, oriented to conduct during negative voltage reversal.

Use Value: Withstands 75 A single-half-sine surge (8.3 ms), preventing MOSFET failure and reducing radiated emissions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar unidirectional TVS diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ24A	DO-214AA package (SMB), 24 V V_WM, 38.9 V V_C @ 15.4 A, same P_PPM and AEC-Q101 rating	Surface-mount footprint; requires PCB layout change; lower thermal resistance in high-power density designs	Select SMBJ24A when space-constrained SMT assembly is required and board-level surge energy remains ≤600 W.
1.5KE27A	DO-201AD package, 27 V V_WM, 43.5 V V_C @ 13.8 A, 1500 W P_PPM, not AEC-Q101 qualified	Higher clamping voltage reduces protection margin for 36 V systems; lacks automotive qualification and high-T_J capability	Choose 1.5KE27A only for cost-sensitive industrial applications where AEC-Q101 and 185 °C operation are not mandatory.

Compared with SMBJ24A and 1.5KE27A, the P6KA27HE3/54 offers axial-leaded DO-204AC packaging for through-hole robustness, guaranteed 185 °C operation, and tighter V_C specification-making it optimal for automotive and high-temperature industrial deployments where mechanical stability and thermal margin are critical.

Availability

P6KA27HE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power feeding, and consumer appliance motor drive circuits requiring stable component supply, long-lifecycle support, and AEC-Q101 assurance.

Supply support for P6KA27HE3/54 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, high-temperature operation, and automotive qualification.

The P6KA27HE3/54 belongs to Vishay's PAR® series of high-temperature-stable TVS diodes, engineered specifically for demanding automotive and industrial environments where sustained operation above 150 °C and immunity to repetitive surge stress are mandatory.

FAQ

What is the maximum clamping voltage of the P6KA27HE3/54 under standard surge conditions?

The P6KA27HE3/54 has a maximum clamping voltage (V_C) of 39.1 V when subjected to its rated 15.3 A peak pulse current (I_PPM) using the industry-standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components rated for ≤36 V operation remain within safe voltage limits during transient events.

Is the P6KA27HE3/54 suitable for automotive applications?

Yes, the P6KA27HE3/54 is AEC-Q101 qualified and rated for operation up to 185 °C junction temperature, making it suitable for under-hood and powertrain applications. Its DO-204AC package, matte tin plating, and JESD 201 Class 2 whisker resistance further support automotive manufacturing and field reliability requirements.

What does the "HE3/54" suffix indicate in P6KA27HE3/54?

The "HE3" suffix denotes RoHS-compliant, AEC-Q101 qualified construction with JESD 201 Class 2 whisker testing. The "/54" indicates packaging in 13-inch paper tape and reel with a base quantity of 4000 units - a standard logistics code used by Vishay for automated assembly compatibility.

How does the P6KA27HE3/54 differ from the P6KA27A variant?

The P6KA27HE3/54 has a V_BR range of 24.3 V to 29.7 V and V_WM = 21.8 V, while the P6KA27A variant specifies V_BR = 25.7 V to 28.4 V and V_WM = 23.1 V. The P6KA27A offers tighter breakdown tolerance and higher standoff voltage, but both share identical package, P_PPM, V_C, and qualification status.

Can the P6KA27HE3/54 be used in bidirectional configurations?

No, the P6KA27HE3/54 is unidirectional only, with cathode marked by a color band. For bidirectional protection, two devices must be connected in series opposing configuration, or a dedicated bidirectional TVS such as the P6SMB27CA should be selected instead.

P6KA27HE3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AC, DO-15, Axial

Series:: PAR®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 21.8V

Voltage - Breakdown (Min):: 24.3V

Voltage - Clamping (Max) @ Ipp:: 39.1V

Current - Peak Pulse (10/1000µs):: 15.3A

Power - Peak Pulse:: 600W

Power Line Protection:: No

Applications:: -

Capacitance @ Frequency:: -

Operating Temperature:: -65°C ~ 185°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

P6KA27HE3/54 FAQ

1.How can I place an order for P6KA27HE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for P6KA27HE3/54 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 P6KA27HE3/54 reliable?

The price and inventory of P6KA27HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA27HE3/54 is usually 5 days.

3.What payment methods are accepted for P6KA27HE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA27HE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P6KA27HE3/54?

P6KA27HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P6KA27HE3/54 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 P6KA27HE3/54?

For technical support, including P6KA27HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA27HE3/54 requirements.

6.How does Aetrix verify that P6KA27HE3/54 is sourced from the original manufacturer or authorized distributors?

All P6KA27HE3/54 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 P6KA27HE3/54 meets industry standards.

7.What is the process for return or replacement of P6KA27HE3/54?

All P6KA27HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA27HE3/54, 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 P6KA27HE3/54 part is unused and in its original packaging.

Return procedure for P6KA27HE3/54:

1.Submit a request within 90 days.

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

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