My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KA11AHE3/54
- Part No.:
- P4KA11AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA11AHE3/54.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KA11AHE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, rated for 400 W peak pulse power (10/1000 µs), 15.6 V clamping voltage at 25.6 A surge current, and 10.5–11.6 V breakdown voltage at 1 mA. It operates from −65 °C to +185 °C and is AEC-Q101 qualified for engine control units and sensor protection in 12 V automotive systems.
For engineers reviewing the P4KA11AHE3/54 datasheet, P4KA11AHE3/54 pinout, P4KA11AHE3/54 application, or P4KA11AHE3/54 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under repetitive transients, and automotive reliability validation per JESD201 Class 2 whisker testing and RoHS compliance.
Technical Context
The P4KA11AHE3/54 uses Vishay's patented PAR® construction to deliver low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and load-dump transients in automotive power rails. Its unidirectional polarity and 1.0 V standoff voltage ensure compatibility with 12 V supply domains while maintaining low leakage (≤1 µA at 9.4 V).
Thermal design is supported by a 185 °C maximum junction temperature and 1.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C. The device is rated for 40 A non-repetitive forward surge (8.3 ms half-sine) and exhibits a +0.075 %/°C temperature coefficient of breakdown voltage - critical for stable clamping across under-hood temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains ISO 7637-2 Pulse 5a load-dump surges without degradation |
| Clamping Voltage (VC) at IPPM | 15.6 V at 25.6 A - limits downstream IC voltage stress below 16 V during worst-case transients |
| Breakdown Voltage (VBR) | 10.5–11.6 V at 1 mA - ensures reliable turn-on before system overvoltage damage occurs |
| Standoff Voltage (VWM) | 9.4 V - maintains high-impedance state during normal 12 V rail operation with ≤1 µA leakage |
| Junction Temperature Range | −65 °C to +185 °C - validated for under-hood placement in AEC-Q101-compliant modules |
| Surge Current (IFSM) | 40 A (8.3 ms half-sine) - withstands repeated cranking and alternator ripple events |
| Temperature Coefficient of VBR | +0.075 %/°C - enables predictable clamping shift across −40 °C to +150 °C ambient |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to chassis or system ground; completes clamping path during reverse transient |
| Cathode | Protected line terminal | Connected to 12 V supply rail or signal line; conducts surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Reduces incremental surge resistance for tighter clamping and lower let-through energy |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications requiring >15-year field life |
| RoHS-compliant HE3 suffix | Meets EU Directive 2002/95/EC and WEEE 2002/96/EC with no lead, cadmium, or brominated flame retardants |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage margin required in protected circuit design |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppresses ISO 7637-2 Pulse 5a load-dump transients (up to 60 V, 400 ms) on 12 V supply lines feeding microcontrollers and analog front-ends in ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp overvoltage before LDO regulators. Use Value: Clamps to 15.6 V at 25.6 A, limiting stress on downstream 16 V-rated components and eliminating need for oversized input capacitors. |
Use Scenario: Protects LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ESD and inductive switching noise in body electronics modules. IC Role / Device Role / Timing Role: Standoff-mode protector on bidirectional signal lines, leveraging low 9.4 V VWM and <1 µA leakage to avoid signal distortion. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), preserving signal integrity without loading the 10–100 kΩ sensor impedance. |
| Body Control Module (BCM) Relay Drive Circuits | Automotive Infotainment Power Rail Protection |
Use Scenario: Absorbs flyback energy from 12 V relay coils switched by N-channel MOSFETs in door lock, window lift, and lighting control circuits. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-switch node, conducting only during negative voltage spikes. Use Value: Handles 40 A single-pulse surge (8.3 ms) and repetitive 10/1000 µs transients up to 0.01% duty cycle without parameter drift. |
Use Scenario: Guards DC-DC converter inputs in head units and display modules against jump-start surges and alternator ripple in shared vehicle battery networks. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of buck converters, selected for 185 °C TJ max and −65 °C cold-cranking capability. Use Value: Maintains stable 10.5–11.6 V VBR across full automotive temperature range, ensuring consistent protection during extreme thermal cycling. |
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 SMAJ11A | Same DO-214AC (SMA) package; 11.1 V VBR min, 18.2 V VC at 22.5 A; 200 W PPPM rating | Lower power handling; suited for non-automotive consumer/industrial PCBs with space constraints | Select when footprint size is prioritized over AEC-Q101 qualification and 400 W surge capacity |
| ON Semiconductor 1.5KE11A | DO-201AD package; 11.1–12.2 V VBR; 18.2 V VC at 22.5 A; 1500 W PPPM but larger form factor | Higher peak power but not AEC-Q101 qualified; requires board area increase of ~3× vs. DO-41 | Choose for legacy industrial designs needing higher single-pulse margin, accepting non-automotive qualification |
Compared with SMAJ11A and 1.5KE11A, the P4KA11AHE3/54 uniquely combines AEC-Q101 qualification, DO-41 compactness, 400 W pulse rating, and +0.075 %/°C VBR stability - making it the only option qualified for new automotive power rail designs requiring long-term under-hood reliability.
Availability
P4KA11AHE3/54 is available at Aetrix Electronics and suitable for engine control units, body control modules, automotive sensor interfaces, and infotainment power supplies requiring stable component supply across extended temperature ranges and automotive lifecycle demands.
Supply support for P4KA11AHE3/54 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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The P4KA11AHE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for AEC-Q101 compliance, under-hood thermal resilience, and robust suppression of ISO 7637-2 and IEC 61000-4-2 transients in 12 V vehicle architectures.
FAQ
What is the clamping voltage of the P4KA11AHE3/54 at its rated peak pulse current?
The P4KA11AHE3/54 has a maximum clamping voltage (VC) of 15.6 V at its rated peak pulse current (IPPM) of 25.6 A, measured using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components see less than 16 V during transient events. The P4KA11AHE3/54 achieves this with low incremental surge resistance enabled by Vishay's PAR® construction.
Is the P4KA11AHE3/54 qualified for automotive applications?
Yes, the P4KA11AHE3/54 is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It meets JESD201 Class 2 whisker resistance, RoHS 2002/95/EC, and WEEE 2002/96/EC requirements. The P4KA11AHE3/54 is validated for under-hood use in ECUs, BCMs, and sensor modules where junction temperatures reach up to +185 °C.
What is the standoff voltage and leakage current specification for the P4KA11AHE3/54?
The P4KA11AHE3/54 has a maximum standoff voltage (VWM) of 9.4 V and guarantees reverse leakage current (ID) of ≤1.0 µA at that voltage and 25 °C. At elevated temperature (TJ = 150 °C), leakage remains ≤1.0 µA, ensuring minimal power loss and signal interference in always-on automotive circuits. This low-leakage performance supports reliable operation in battery-sensitive modules.
What package type does the P4KA11AHE3/54 use, and what are its key mechanical features?
The P4KA11AHE3/54 uses the DO-204AL (DO-41) axial-leaded package with molded epoxy housing rated UL 94 V-0. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards, and the cathode is marked by a color band. The P4KA11AHE3/54's compact 2.7 mm diameter and 5.2 mm body length enable high-density placement on automotive PCBs.
How does the temperature coefficient of breakdown voltage affect the P4KA11AHE3/54 in automotive environments?
The P4KA11AHE3/54 has a temperature coefficient of breakdown voltage of +0.075 %/°C, meaning VBR increases predictably with junction temperature. Over the −40 °C to +150 °C range, this results in ~10.5 V to ~12.0 V VBR shift - well within safe margins for 12 V system protection. This stability allows designers to rely on consistent clamping behavior without derating for thermal drift in the P4KA11AHE3/54.
P4KA11AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.6A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KA11AHE3/54 FAQ
1.How can I place an order for P4KA11AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA11AHE3/54 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 P4KA11AHE3/54 reliable?
The price and inventory of P4KA11AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA11AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA11AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA11AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA11AHE3/54?
P4KA11AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA11AHE3/54 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 P4KA11AHE3/54?
For technical support, including P4KA11AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA11AHE3/54 requirements.
6.How does Aetrix verify that P4KA11AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA11AHE3/54 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 P4KA11AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA11AHE3/54?
All P4KA11AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA11AHE3/54, 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 P4KA11AHE3/54 part is unused and in its original packaging.
Return procedure for P4KA11AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA11AHE3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
