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

Vishay General Semiconductor - Diodes Division P6KA11HE3/54

Name: P6KA11HE3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: P6KA11HE3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: P6KA11HE3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

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

Datasheet:: P6KA11HE3/54.pdf

Description:: TVS DIODE 8.92VWM 16.2VC DO204AC

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Product details

Overview

P6KA11HE3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 9.9 V minimum breakdown voltage (V_BR), 8.92 V standoff voltage (V_WM), 600 W peak pulse power (10/1000 μs), 16.2 V maximum clamping voltage at 37 A, and operates up to +185 °C junction temperature - ideal for automotive power rail and sensor interface protection.

For engineers reviewing the P6KA11HE3/54 datasheet, P6KA11HE3/54 pinout, P6KA11HE3/54 application, or P6KA11HE3/54 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification for automotive use, DO-204AC (DO-15) package compatibility, and thermal stability at TJ = 185 °C.

Technical Context

This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation. Its unidirectional polarity enables forward-conduction-based clamping during positive transients on DC-biased lines, while maintaining low leakage (<5.0 μA at V_WM) at 25 °C and 150 °C.

The device delivers stable clamping across temperature due to a +0.075 %/°C V_BR temperature coefficient and supports repetitive surge events at 0.01 % duty cycle. It meets JESD 22-B106 solder dip requirements (275 °C, 10 s) and passes JESD 201 Class 2 whisker testing (HE3 suffix).

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	8.92 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin.
V_BR (min/max)	9.9 V / 12.1 V at 1.0 mA - Ensures predictable turn-on threshold across production lot and temperature.
V_C @ I_PPM	16.2 V at 37 A - Clamping voltage limits downstream IC stress during 10/1000 μs surges (IEC 61000-4-5).
P_PPM	600 W - Sustains high-energy transients without failure; validated per ANSI/IEEE C62.35 waveform.
T_J max.	+185 °C - Enables placement near hot components (e.g., power MOSFETs, engine control units) without derating.
I_F_SM	75 A - Withstands 8.3 ms half-sine surge (e.g., load dump in 12 V automotive systems).
Polarity	Unidirectional - Used on positively biased lines where reverse conduction is not required.

Pinout & Package

Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; cathode denoted by color band. Compliant with UL 94 V-0 flammability rating.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point during clamping	Connected to lower-potential side of protected line (e.g., GND or return path); enables conduction when transient exceeds V_BR.
Cathode	Reverse-biased terminal during normal operation	Connected to higher-potential side (e.g., +12 V rail); blocks leakage until breakdown; marked by color band.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JEDEC standards.
Junction passivation	Reduces surface leakage and improves long-term stability under high-humidity and high-temperature conditions.
Low clamping ratio (V_C/V_BR)	~1.64 (16.2 V / 9.9 V) - Minimizes overvoltage stress on protected ICs relative to breakdown onset.
High surge current capability	37 A peak pulse current (I_PPM) - Handles severe transients such as ISO 7637-2 Pulse 1/2a/5a in vehicle electronics.
Matte tin plating	Ensures reliable solderability per J-STD-002 and JESD 22-B102; HE3 suffix passes JESD 201 Class 2 whisker test.

Applications

Automotive Power Rail Protection	Industrial Sensor Interface Protection
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator surge transients per ISO 7637-2. IC Role / Device Role: Primary clamping element placed between power rail and ground, shunting surge energy away from voltage regulators and microcontrollers. Use Value: Limits rail voltage to ≤16.2 V during 37 A transients, preventing latch-up or permanent damage to downstream 16 V-rated ICs.	Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules exposed to field wiring inductive kick. IC Role / Device Role: Fast-acting shunt protector on sensor supply line, triggered within nanoseconds of overvoltage event. Use Value: Clamps transients before they propagate into precision ADC front-ends, preserving measurement integrity and avoiding system resets.
Telecom Line Card Surge Protection	Consumer Power Adapter Input Stage
Use Scenario: Secondary-level protection on -48 V DC distribution lines in telecom central office equipment subjected to lightning-induced surges. IC Role / Device Role: Unidirectional TVS placed after primary gas discharge tube (GDT), providing low-clamp backup protection. Use Value: Delivers precise 16.2 V clamping at 37 A, enabling coordinated staging with upstream protectors and minimizing let-through energy.	Use Scenario: Input-stage transient suppression on AC/DC adapter primary-side DC bus (e.g., post-bridge rectifier) in USB-C PD chargers. IC Role / Device Role: Standoff-rated protector absorbing switching noise and ESD from input capacitors and MOSFETs. Use Value: Maintains <5.0 μA leakage at 8.92 V, minimizing standby power loss while clamping fast spikes to protect controller ICs.

Automotive Power Rail Protection

Industrial Sensor Interface Protection

Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator surge transients per ISO 7637-2.

IC Role / Device Role: Primary clamping element placed between power rail and ground, shunting surge energy away from voltage regulators and microcontrollers.

Use Value: Limits rail voltage to ≤16.2 V during 37 A transients, preventing latch-up or permanent damage to downstream 16 V-rated ICs.

Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules exposed to field wiring inductive kick.

IC Role / Device Role: Fast-acting shunt protector on sensor supply line, triggered within nanoseconds of overvoltage event.

Use Value: Clamps transients before they propagate into precision ADC front-ends, preserving measurement integrity and avoiding system resets.

Telecom Line Card Surge Protection

Consumer Power Adapter Input Stage

Use Scenario: Secondary-level protection on -48 V DC distribution lines in telecom central office equipment subjected to lightning-induced surges.

IC Role / Device Role: Unidirectional TVS placed after primary gas discharge tube (GDT), providing low-clamp backup protection.

Use Value: Delivers precise 16.2 V clamping at 37 A, enabling coordinated staging with upstream protectors and minimizing let-through energy.

Use Scenario: Input-stage transient suppression on AC/DC adapter primary-side DC bus (e.g., post-bridge rectifier) in USB-C PD chargers.

IC Role / Device Role: Standoff-rated protector absorbing switching noise and ESD from input capacitors and MOSFETs.

Use Value: Maintains <5.0 μA leakage at 8.92 V, minimizing standby power loss while clamping fast spikes to protect controller ICs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ11A-E3/5A	Same DO-214AC package; 11.1 V V_WM, 12.3 V V_BR min, 18.2 V V_C @ 33 A; lower PPPM (400 W)	Lower clamping voltage margin and reduced surge capacity; suitable only for lighter-duty consumer applications	Select when space constraints require SMA package and surge energy is ≤400 W.
1.5KE11A	DO-201AD package; 9.4 V V_WM, 10.5 V V_BR min, 17.5 V V_C @ 34.3 A; same 600 W PPPM but larger footprint	Larger case increases board area; lacks AEC-Q101 qualification and 185 °C rating	Choose only for non-automotive industrial use where extended temperature range is not required.

Compared with SMAJ11A-E3/5A and 1.5KE11A, the P6KA11HE3/54 offers superior high-temperature operation (185 °C vs. 150 °C), automotive qualification, and tighter V_C/V_BR ratio - making it the preferred choice for under-hood and safety-critical power rail protection.

Availability

P6KA11HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom line cards, and consumer power adapter designs requiring stable component supply and AEC-Q101 compliance.

Supply support for P6KA11HE3/54 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, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.

The P6KA series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) family, engineered specifically for high-energy transient suppression in harsh environments where extended temperature range and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum clamping voltage of the P6KA11HE3/54 under standard test conditions?

The P6KA11HE3/54 has a maximum clamping voltage (V_C) of 16.2 V at 37 A peak pulse current (I_PPM) using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting during standardized surge events. The P6KA11HE3/54 maintains this clamping performance across its full operating temperature range.

Is the P6KA11HE3/54 qualified for automotive applications?

Yes, the P6KA11HE3/54 is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature. It undergoes rigorous stress testing including HTGB, HTRB, and temperature cycling per JEDEC standards. The HE3 suffix confirms RoHS compliance and JESD 201 Class 2 whisker resistance - all critical for automotive power and sensor systems.

What does the "HE3/54" suffix indicate in P6KA11HE3/54?

The "HE3" suffix denotes RoHS-compliant construction with matte tin-plated leads that meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements. The "/54" indicates packaging in 13-inch paper tape and reel, with a base quantity of 4000 units per reel - standard for automated SMT assembly of the P6KA11HE3/54.

How does the P6KA11HE3/54 differ from the P6KA11A variant?

The P6KA11HE3/54 has a V_BR range of 9.9–12.1 V and V_WM of 8.92 V, while the P6KA11A variant specifies 10.5–11.6 V V_BR and 9.40 V V_WM. Both share identical PPPM (600 W), V_C (15.6 V), and thermal ratings. The P6KA11HE3/54 is selected when tighter V_WM margin is needed relative to system nominal voltage.

Can the P6KA11HE3/54 be used in bidirectional protection circuits?

No - the P6KA11HE3/54 is unidirectional only, intended for DC-biased lines where clamping occurs during positive transients. For bidirectional protection (e.g., data lines, AC signals), a dedicated bidirectional TVS like the P6SMB11CA must be used. Using the P6KA11HE3/54 in reverse-biased configurations risks premature conduction or failure.

P6KA11HE3/54 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):: 8.92V

Voltage - Breakdown (Min):: 9.9V

Voltage - Clamping (Max) @ Ipp:: 16.2V

Current - Peak Pulse (10/1000µs):: 37A

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)

P6KA11HE3/54 FAQ

1.How can I place an order for P6KA11HE3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for P6KA11HE3/54 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 P6KA11HE3/54 reliable?

The price and inventory of P6KA11HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA11HE3/54 is usually 5 days.

3.What payment methods are accepted for P6KA11HE3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA11HE3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P6KA11HE3/54?

P6KA11HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P6KA11HE3/54 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 P6KA11HE3/54?

For technical support, including P6KA11HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA11HE3/54 requirements.

6.How does Aetrix verify that P6KA11HE3/54 is sourced from the original manufacturer or authorized distributors?

All P6KA11HE3/54 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 P6KA11HE3/54 meets industry standards.

7.What is the process for return or replacement of P6KA11HE3/54?

All P6KA11HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA11HE3/54, 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 P6KA11HE3/54 part is unused and in its original packaging.

Return procedure for P6KA11HE3/54:

1.Submit a request within 90 days.

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

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