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Vishay General Semiconductor - Diodes Division P4KA16AHE3/54
- Part No.:
- P4KA16AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA16AHE3/54.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,224
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Product details
Overview
P4KA16AHE3/54 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), 15.2–16.8 V breakdown voltage, and 17.8 A peak pulse current. It operates from −65 °C to +185 °C, features AEC-Q101 qualification, and protects MOSFETs and sensor signal lines in automotive powertrain control units against inductive switching transients.
For engineers reviewing the P4KA16AHE3/54 datasheet, P4KA16AHE3/54 pinout, P4KA16AHE3/54 application, or P4KA16AHE3/54 equivalent, this page delivers verified electrical specs, clamping behavior at 17.8 A, thermal derating curves, RoHS-compliant HE3 packaging details, and direct alternatives qualified for automotive-grade surge protection.
Technical Context
The P4KA16AHE3/54 employs Vishay's patented PAR® construction for stable clamping under high-temperature stress (TJ up to 185 °C) and repetitive 10/1000 µs surge events at 0.01 % duty cycle. Its unidirectional polarity and 13.6 V stand-off voltage enable reliable reverse-biased operation in DC power rails.
It exhibits low incremental surge resistance and fast response time (<1 ns), with 22.5 V maximum clamping voltage at 17.8 A IPPM - critical for safeguarding 12 V automotive electronics against ISO 7637-2 pulse 1 and pulse 3a/b transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 15.2–16.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins, ensuring consistent turn-on across temperature |
| Peak Pulse Power PPPM | 400 W (10/1000 µs) - sustains single high-energy surges common in automotive load-dump and inductive kick scenarios |
| Clamping Voltage VC | 22.5 V at 17.8 A - limits downstream voltage stress on protected ICs during full-rated surge event |
| Stand-off Voltage VWM | 13.6 V - ensures no leakage conduction during normal 12 V system operation, including cold-crank down to ~6 V |
| Operating Temperature | −65 °C to +185 °C - supports under-hood placement in engine control modules without derating loss |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including HTSL, TCT, and surge endurance per JESD22-A114 |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package compatible with automated through-hole assembly and manual repair |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case with matte tin-plated leads compliant with J-STD-002 and JESD22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides low VF (3.5 V @ 25 A) path during forward surge events; enables bidirectional protection when paired with complementary device |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail or signal) | Acts as clamping node during reverse transients; color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables stable VBR drift <±5 % over 1000 hrs at 150 °C, critical for long-life automotive modules |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock |
| 40 s solder dip at 260 °C | Supports wave-soldering process without parameter shift or delamination - eliminates rework risk |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed engine bay environments meeting OEM flammability requirements |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability 12 V power domains over 15+ year service life |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply input of diesel ECU against load dump (ISO 7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS clamps transient energy before it reaches LDO regulators and microcontroller power pins. Use Value: Limits voltage to ≤22.5 V during 400 W surge, preventing latch-up or permanent damage to 3.3 V/5 V logic supplies. |
Use Scenario: Shields analog outputs of crankshaft position sensors from inductive switching noise on adjacent harnesses. IC Role / Device Role / Timing Role: Placed in series with signal line to absorb coupled EFT bursts (IEC 61000-4-4) while maintaining DC integrity. Use Value: Clamps transients within 1 ns while adding only 100 pF capacitance at 0 V - avoids signal edge degradation at ≤10 kHz bandwidth. |
| Body Control Module (BCM) LIN Bus Protection | Transmission Control Solenoid Driver Protection |
Use Scenario: Guards LIN transceiver I/O pins against ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1 µA @ 13.6 V) unidirectional clamp placed between LIN line and ground. Use Value: Maintains bus idle voltage stability while suppressing >15 kV ESD strikes without false triggering or data corruption. |
Use Scenario: Absorbs back-EMF from 12 V solenoid coils switched by N-channel MOSFET drivers in automatic transmission valve bodies. IC Role / Device Role / Timing Role: Mounted across coil terminals to recirculate inductive energy and protect driver FET drain. Use Value: Handles 40 A IFSM surge and clamps flyback voltage to 22.5 V - extends MOSFET lifetime and prevents gate oxide rupture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/5AT | Lower PPPM (400 W same), but SMA package (SMD); VBR = 16.7–18.5 V; TJ max = 150 °C | Surface-mount only; unsuitable for through-hole legacy designs or high-vibration mechanical retention | Select for space-constrained PCBs where reflow compatibility and automated placement outweigh axial-lead robustness |
| 1.5KE16A | Same DO-41 package; higher VBR tolerance (14.4–17.6 V); lower TJ max (175 °C); not AEC-Q101 qualified | Lacks automotive qualification and high-temp stability; requires additional validation for under-hood use | Acceptable for industrial or consumer applications where AEC-Q101 and 185 °C operation are not mandated |
Compared with SMAJ16A-E3/5AT and 1.5KE16A, the P4KA16AHE3/54 uniquely combines AEC-Q101 qualification, 185 °C junction rating, and DO-41 mechanical reliability - making it the only drop-in solution for production automotive ECUs requiring zero layout change and full compliance traceability.
Availability
P4KA16AHE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, body electronics, and transmission systems requiring stable component supply with full AEC-Q101 documentation and lot-level traceability.
Supply support for P4KA16AHE3/54 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 optoelectronics for automotive, industrial, and computing markets.
The P4KA16AHE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for under-hood surge immunity - emphasizing thermal stability, AEC-Q101 compliance, and robust clamping performance in harsh 12 V/24 V systems.
FAQ
What is the exact breakdown voltage range for P4KA16AHE3/54?
The P4KA16AHE3/54 has a guaranteed breakdown voltage (VBR) range of 15.2 V to 16.8 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, directly supporting design margining for 12 V automotive systems.
Is P4KA16AHE3/54 suitable for protecting CAN bus lines?
No - the P4KA16AHE3/54 is not optimized for CAN bus protection. Its 22.5 V clamping voltage exceeds the typical 5 V CAN transceiver rail, and its 100 pF junction capacitance at 0 V would distort high-speed differential signaling. Use dedicated low-capacitance CAN TVS like SM712 or NUP2105 instead of P4KA16AHE3/54 for that interface.
Does P4KA16AHE3/54 require a heatsink for 1.5 W continuous dissipation?
No - the 1.5 W power dissipation rating (PD) for P4KA16AHE3/54 applies only with infinite heatsinking at lead temperature (TL) = 75 °C, per Figure 5. In standard PCB mounting, continuous power handling is limited to ~0.5 W at 25 °C ambient; the device is intended for transient, not steady-state, power dissipation.
What does the "HE3/54" suffix indicate in P4KA16AHE3/54?
The "HE3" suffix denotes RoHS-compliant, high-reliability, automotive-grade construction per AEC-Q101, including JESD201 Class 2 whisker resistance and UL 94 V-0 molding. "54" specifies the preferred package code: 5500-piece 13-inch paper tape and reel delivery format, confirmed in Vishay Document #88364 ordering table.
Can P4KA16AHE3/54 replace P4KA16HE3/54 in an existing design?
Yes - P4KA16AHE3/54 is the tighter-tolerance variant of P4KA16HE3/54, with VBR = 15.2–16.8 V vs. 14.4–17.6 V, and identical package, ratings, and qualification. The "A" suffix indicates improved VBR distribution; no layout or firmware changes are needed when substituting P4KA16AHE3/54 into a design originally using P4KA16HE3/54.
P4KA16AHE3/54 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 17.8A
- 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)
P4KA16AHE3/54 FAQ
1.How can I place an order for P4KA16AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA16AHE3/54 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 P4KA16AHE3/54 reliable?
The price and inventory of P4KA16AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA16AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA16AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA16AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA16AHE3/54?
P4KA16AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA16AHE3/54 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 P4KA16AHE3/54?
For technical support, including P4KA16AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA16AHE3/54 requirements.
6.How does Aetrix verify that P4KA16AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA16AHE3/54 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 P4KA16AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA16AHE3/54?
All P4KA16AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA16AHE3/54, 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 P4KA16AHE3/54 part is unused and in its original packaging.
Return procedure for P4KA16AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA16AHE3/54 Tags
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