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Vishay General Semiconductor - Diodes Division P4KA16HE3/54
- Part No.:
- P4KA16HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA16HE3/54.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,267
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Product details
Overview
P4KA16HE3/54 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), 14.4–17.6 V breakdown voltage (VBR), and 185 °C maximum junction temperature. It protects MOSFETs and ICs in automotive power circuits against inductive switching transients.
For engineers reviewing the P4KA16HE3/54 datasheet, P4KA16HE3/54 pinout, P4KA16HE3/54 application, or P4KA16HE3/54 equivalent, key selection criteria include clamping voltage (23.5 V at 17.0 A), AEC-Q101 qualification, RoHS-compliant HE3 packaging, and 1.5 W steady-state power dissipation under thermal-limited conditions.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for stable clamping under high-temperature operation up to 185 °C and exhibits low incremental surge resistance with fast response time (<1 ns). Its unidirectional polarity and 10/1000 µs waveform compliance per ANSI/IEEE C62.35 ensure robust protection against repetitive transients in automotive environments.
The device operates with a 12.9 V stand-off voltage (VWM) and delivers 23.5 V maximum clamping voltage (VC) at 17.0 A peak pulse current (IPPM). Its 0.086 %/°C temperature coefficient of VBR ensures predictable voltage drift across the full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains automotive load-dump and inductive-switching surges without failure |
| Breakdown Voltage VBR | 14.4–17.6 V at 1 mA - defines precise conduction threshold for overvoltage triggering |
| Clamping Voltage VC | 23.5 V at 17.0 A - limits downstream voltage stress during transient events |
| Stand-off Voltage VWM | 12.9 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| Junction Temperature Range | −65 °C to +185 °C - supports under-hood automotive deployment without derating |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package compatible with through-hole assembly |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, molded epoxy case with cathode band marking. Matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards; HE3 suffix indicates JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional TVS configuration |
| Cathode | Protected line connection / clamping node | Connected to signal/power line being protected; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables stable clamping performance and low dynamic impedance across temperature and lifetime |
| 400 W peak pulse power (10/1000 µs) | Withstands repeated automotive transients such as ISO 7637-2 Pulse 1/2a/5a without degradation |
| AEC-Q101 qualified (HE3 grade) | Validated for automotive under-hood use including HTGB, HTRB, and temperature humidity bias testing |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage margin required for protected ICs, reducing design safety factor overhead |
| RoHS-compliant & UL 94 V-0 molding | Meets automotive environmental compliance and flammability requirements for engine control units |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protects microcontroller I/O and driver FET gates from load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between protected line and chassis ground. Use Value: Clamps transients to ≤23.5 V while maintaining 12.9 V stand-off, enabling direct interface with 16 V-tolerant automotive MCUs. |
Use Scenario: Shields PLC digital input terminals from relay coil flyback and contact arcing in factory automation. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor on 24 V DC input lines upstream of optocoupler isolation. Use Value: Withstands 40 A surge (8.3 ms half-sine) and maintains <1 µA leakage at 12.9 V, ensuring signal integrity during normal operation. |
| Automotive Body Control Module (BCM) | Telecom Power Supply Input Stage |
Use Scenario: Safeguards LIN bus transceivers and LED drivers from battery reverse-connection and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V rail feeding BCM sub-circuits. Use Value: 185 °C max junction rating allows placement near heat-generating power regulators without thermal derating. |
Use Scenario: Front-end protection for AC/DC power supplies subjected to lightning-induced surges on telecom central office inputs. IC Role / Device Role / Timing Role: Secondary surge suppression stage following MOV-based primary protection. Use Value: Low clamping voltage (23.5 V) prevents over-stress of downstream bridge rectifiers rated for 35 V PIV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Surface-mount SMB package; 16 V nominal VBR; 600 W PPPM; slightly higher VC (25.8 V) | Requires PCB rework for SMT vs. through-hole; better suited for space-constrained telecom modules | Select when board real estate is limited and automated assembly is preferred over manual thru-hole insertion |
| P4KE16A | Legacy DO-15 package; same VBR range but lower surge rating (350 W); non-AEC-Q101; no HE3 whisker rating | Lacks automotive qualification and high-temp reliability; suitable only for industrial/commercial use | Choose only for cost-sensitive non-automotive designs where AEC-Q101 and 185 °C operation are not required |
Compared with SMBJ16A and P4KE16A, the P4KA16HE3/54 uniquely combines AEC-Q101 qualification, 185 °C operation, DO-41 through-hole compatibility, and 400 W surge capability-making it the only option qualified for under-hood automotive deployment without layout or reliability compromise.
Availability
P4KA16HE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, body control modules, and telecom power supply input stages requiring stable component supply with guaranteed long-term availability.
Supply support for P4KA16HE3/54 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, MOSFETs, and passive components for demanding industrial and automotive applications.
The P4KA16HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for AEC-Q101 compliance, high-temperature stability, and robust transient immunity in engine control, body electronics, and powertrain systems.
FAQ
What is the clamping voltage of the P4KA16HE3/54 at its rated peak pulse current?
The P4KA16HE3/54 has a maximum clamping voltage (VC) of 23.5 V at 17.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures protected circuitry remains within safe voltage limits during standardized surge events. The P4KA16HE3/54 achieves this with low dynamic impedance enabled by its patented PAR® construction.
Is the P4KA16HE3/54 qualified for automotive applications?
Yes, the P4KA16HE3/54 is AEC-Q101 qualified and designated as high-reliability automotive grade (HE3 suffix). It undergoes rigorous testing including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing to meet automotive under-hood requirements. The P4KA16HE3/54 is explicitly listed in Vishay's AEC-Q101 qualified products documentation.
What does the HE3 suffix indicate on the P4KA16HE3/54?
The HE3 suffix on the P4KA16HE3/54 denotes RoHS-compliant, high-reliability automotive grade construction meeting JESD201 Class 2 whisker resistance, matte tin plating per J-STD-002, and full AEC-Q101 qualification. It also confirms compliance with UL 94 V-0 flammability and solder dip tolerance at 260 °C for 40 seconds. The P4KA16HE3/54 is not a commercial-grade variant.
Can the P4KA16HE3/54 be used in bidirectional configurations?
No, the P4KA16HE3/54 is available in uni-directional polarity only, as confirmed in the Vishay datasheet Document Number 88364. Its cathode band marking and electrical characteristics-including forward voltage (3.5 V at 25 A) and asymmetric breakdown behavior-are designed exclusively for single-polarity transient suppression. For bidirectional protection, a separate series-aided pair or dedicated bi-directional TVS must be used instead of the P4KA16HE3/54.
What is the maximum steady-state power dissipation for the P4KA16HE3/54?
The P4KA16HE3/54 has a maximum steady-state power dissipation (PD) of 1.5 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C, as specified in Figure 5 of the datasheet. This rating applies to continuous DC or low-duty-cycle operation-not transient suppression. Derating is required above 25 °C ambient, and the P4KA16HE3/54 must not exceed 185 °C junction temperature under any condition.
P4KA16HE3/54 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):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 17A
- 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)
P4KA16HE3/54 FAQ
1.How can I place an order for P4KA16HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA16HE3/54 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 P4KA16HE3/54 reliable?
The price and inventory of P4KA16HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA16HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA16HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA16HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA16HE3/54?
P4KA16HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA16HE3/54 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 P4KA16HE3/54?
For technical support, including P4KA16HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA16HE3/54 requirements.
6.How does Aetrix verify that P4KA16HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA16HE3/54 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 P4KA16HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA16HE3/54?
All P4KA16HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA16HE3/54, 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 P4KA16HE3/54 part is unused and in its original packaging.
Return procedure for P4KA16HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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