My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KA10HE3/73
- Part No.:
- P4KA10HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA10HE3/73.pdf
- Description:
- TVS DIODE 8.1VWM 15VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,485
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KA10HE3/73 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), 9.0–11.0 V breakdown voltage (VBR), and 15.0 V clamping voltage (VC) at 26.7 A peak pulse current. It operates from −65 °C to +185 °C and is AEC-Q101 qualified for engine control units and powertrain electronics.
For engineers reviewing the P4KA10HE3/73 datasheet, P4KA10HE3/73 pinout, P4KA10HE3/73 application, or P4KA10HE3/73 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under surge conditions, and automotive reliability validation per JESD201 Class 2 whisker test and RoHS/WEEE compliance.
Technical Context
The P4KA10HE3/73 employs Vishay's patented PAR® construction for stable clamping under repetitive transients and high-temperature operation up to 185 °C junction temperature. Its unidirectional polarity and 1.5 W steady-state power dissipation support continuous protection in DC-biased signal and power lines.
It delivers 26.7 A peak pulse current (IPPM) with 15.0 V clamping voltage at that current, achieving low incremental surge resistance and fast response time (<1 ns). The device meets ANSI/IEEE C62.35 standards and is characterized with 10/1000 µs waveform testing per Fig. 1 and Fig. 3 of Doc. 88364.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 9.0–11.0 V at 1.0 mA test current - defines minimum voltage at which TVS begins conduction during overvoltage events |
| Clamping Voltage VC | 15.0 V at 26.7 A IPPM - maximum voltage seen by protected circuit during 400 W transient |
| Peak Pulse Power PPPM | 400 W (10/1000 µs waveform) - sustained surge energy handling without failure under automotive load-dump conditions |
| Operating Temperature Range | −65 °C to +185 °C - enables deployment in under-hood ECUs and transmission control modules |
| Surge Current IFSM | 40 A (8.3 ms half-sine) - withstands repetitive inductive switching surges in motor drive circuits |
| Reverse Leakage ID | 5.0 µA max at 8.10 V stand-off - ensures minimal quiescent power loss in always-on sensor supply rails |
| Temperature Coefficient of VBR | 0.073 %/°C - predictable VBR drift across temperature for stable protection threshold in wide ambient ranges |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD22-B102; cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or low-side reference | Enables unidirectional clamping from cathode to anode during positive transients on protected line |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 12 V rail or signal) | Provides low-impedance path to ground when transient exceeds VBR, limiting voltage to ≤15.0 V |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Ensures consistent clamping performance and reduced parameter drift after repeated surge exposure |
| AEC-Q101 qualification | Validated for automotive under-hood use including thermal cycling, humidity, and mechanical shock per stress test requirements |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under high-temperature/humidity storage, eliminating latent short-circuit risk in long-life modules |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation prevents flame propagation in high-energy fault scenarios |
| 400 W 10/1000 µs pulse rating | Meets ISO 7637-2 Pulse 5a (load dump) immunity requirements for 12 V vehicle systems |
Applications
| Engine Control Unit (ECU) Power Input Protection | Transmission Control Module (TCM) Sensor Line Clamping |
|---|---|
Use Scenario: Protects 12 V supply input of ECU against ISO 7637-2 load dump transients up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp overvoltage before it reaches LDOs and microcontrollers. Use Value: Limits voltage to ≤15.0 V during 400 W surge, preventing damage to downstream 3.3 V/5 V logic and analog front-ends. |
Use Scenario: Shields CAN or LIN bus signal lines in TCM from inductive kickback generated by solenoid drivers. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector interface to absorb fast-rising transients before reaching transceiver ICs. Use Value: Clamps transients within <1 ns while maintaining signal integrity due to low dynamic impedance and 5.0 µA leakage at 8.10 V. |
| Body Control Module (BCM) Relay Driver Output | Electric Power Steering (EPS) Motor Phase Protection |
Use Scenario: Suppresses flyback voltage spikes from 12 V relay coils switched by BCM low-side drivers. IC Role / Device Role / Timing Role: TVS placed across relay coil terminals to provide return path for stored inductive energy. Use Value: Absorbs 40 A surge current (IFSM) without degradation, enabling reliable 100,000+ cycle relay operation. |
Use Scenario: Protects H-bridge gate drivers in EPS motor control from voltage overshoot during PWM switching transitions. IC Role / Device Role / Timing Role: Mounted across phase-to-ground nodes to clamp commutation spikes induced by motor back-EMF. Use Value: Maintains 185 °C max junction temperature rating under continuous 125 °C ambient, ensuring robustness in high-power steering assist cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same DO-214AC package; 10 V VWM, 17.0 V VC at 23.3 A; lower PPPM (400 W same), but 150 °C TJ max vs. 185 °C | Not AEC-Q101 qualified; suitable for industrial/commercial, not automotive under-hood | Select SMAJ10A only for non-automotive designs where extended temperature margin is unnecessary |
| 1.5KE10A | DO-201AD package; identical VBR range and VC; higher IFSM (100 A), but larger footprint and no JESD201 whisker rating | Larger board area required; lacks automotive qualification and high-reliability lead finish | Choose 1.5KE10A only if higher surge current headroom is critical and space permits larger case |
Compared with SMAJ10A and 1.5KE10A, the P4KA10HE3/73 uniquely combines AEC-Q101 qualification, 185 °C junction rating, JESD201 Class 2 whisker resistance, and DO-41 form factor-making it the only option validated for long-life, high-temperature automotive powertrain applications.
Availability
P4KA10HE3/73 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, body control modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for P4KA10HE3/73 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 high-temperature performance.
The P4KA10HE3/73 belongs to Vishay's automotive-grade TVS family designed specifically for ISO 7637-2 and ISO 16750-2 compliance in powertrain and chassis electronics, emphasizing AEC-Q101 qualification and extended thermal operation.
FAQ
What is the clamping voltage of the P4KA10HE3/73 at its rated peak pulse current?
The P4KA10HE3/73 has a maximum clamping voltage (VC) of 15.0 V at 26.7 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and confirmed in the Electrical Characteristics table of Vishay Document 88364. The P4KA10HE3/73 maintains this clamping performance across its full operating temperature range, supporting robust overvoltage protection in automotive power rails.
Is the P4KA10HE3/73 suitable for under-hood automotive applications?
Yes, the P4KA10HE3/73 is explicitly qualified to AEC-Q101 and rated for operation from −65 °C to +185 °C junction temperature, making it suitable for under-hood environments such as engine control units and transmission control modules. Its DO-204AL package passes solder dip at 260 °C for 40 s, and the HE3 suffix confirms JESD201 Class 2 whisker resistance-both critical for automotive reliability. The P4KA10HE3/73 meets these requirements without derating.
What does the "HE3" suffix indicate in P4KA10HE3/73?
The "HE3" suffix in P4KA10HE3/73 denotes Vishay's high-reliability, RoHS-compliant, automotive-grade variant: "H" indicates AEC-Q101 qualification, "E3" specifies matte tin-plated leads compliant with J-STD-002 and JESD22-B102, and passing JESD201 Class 2 whisker testing. This suffix distinguishes it from commercial-grade versions and confirms suitability for long-life automotive deployments. The P4KA10HE3/73 carries this suffix per ordering information in Document 88364.
How does the P4KA10HE3/73 compare to the P4KA10A variant?
The P4KA10HE3/73 and P4KA10A share identical electrical specifications-including 9.5–10.5 V VBR, 14.5 V VC, and 27.6 A IPPM-but differ in packaging and qualification. P4KA10HE3/73 uses the HE3 suffix indicating AEC-Q101 qualification and JESD201 Class 2 whisker resistance, while P4KA10A is a standard industrial variant. The P4KA10HE3/73 is the appropriate choice for automotive production where reliability certification is mandatory.
What is the maximum reverse leakage current for the P4KA10HE3/73 at its stand-off voltage?
The P4KA10HE3/73 exhibits a maximum reverse leakage current (ID) of 5.0 µA at its 8.10 V stand-off voltage (VWM) and 25 °C ambient temperature, per the Electrical Characteristics table in Document 88364. At 150 °C junction temperature, leakage remains ≤100 µA-ensuring minimal power loss in always-on automotive subsystems. This low leakage is maintained across the full VWM range and supports efficient protection in battery-sensitive applications.
P4KA10HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.1V
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 26.7A
- 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)
P4KA10HE3/73 FAQ
1.How can I place an order for P4KA10HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA10HE3/73 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 P4KA10HE3/73 reliable?
The price and inventory of P4KA10HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA10HE3/73 is usually 5 days.
3.What payment methods are accepted for P4KA10HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA10HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA10HE3/73?
P4KA10HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA10HE3/73 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 P4KA10HE3/73?
For technical support, including P4KA10HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA10HE3/73 requirements.
6.How does Aetrix verify that P4KA10HE3/73 is sourced from the original manufacturer or authorized distributors?
All P4KA10HE3/73 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 P4KA10HE3/73 meets industry standards.
7.What is the process for return or replacement of P4KA10HE3/73?
All P4KA10HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA10HE3/73, 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 P4KA10HE3/73 part is unused and in its original packaging.
Return procedure for P4KA10HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA10HE3/73 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 …
