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Vishay General Semiconductor - Diodes Division P4KE16CAHE3/54
- Part No.:
- P4KE16CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE16CAHE3/54.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,772
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Product details
Overview
P4KE16CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features 16 V breakdown voltage (VBR min/max = 15.2–16.8 V), 13.6 V standoff voltage (VWM), 22.5 V maximum clamping voltage at 17.8 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE16CAHE3/54 datasheet, P4KE16CAHE3/54 pinout, P4KE16CAHE3/54 application, or P4KE16CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, and verified 175 °C junction temperature rating for under-hood automotive deployment.
Technical Context
This device operates as a voltage-clamped shunt protector: when reverse (or forward, in bidirectional mode) transient voltage exceeds VBR, it avalanches to limit voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM).
Designed for unclamped inductive switching events and lightning-induced surges, it delivers 17.8 A peak pulse current (IPPM) at 22.5 V clamping, with thermal resistance RθJL = 66 °C/W enabling reliable power dissipation without heatsinking in standard PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V - defines precise avalanche initiation window for repeatable clamping onset |
| VWM | 13.6 V - maximum continuous working voltage before leakage rises above 1.0 μA |
| VC @ IPPM | 22.5 V at 17.8 A - clamped voltage seen by protected IC during 10/1000 μs surge |
| PPPM | 400 W - peak transient energy absorption capacity per single 10/1000 μs pulse |
| TJ max | +175 °C - enables operation in high-temperature automotive engine compartments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
| Package | DO-41 (DO-204AL) - industry-standard axial leaded package with 0.205" body diameter and 0.034" lead diameter |
Pinout & Package
DO-41 package: axial-leaded, molded epoxy body with glass-passivated chip junction. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking - bidirectional operation confirmed by CA suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional avalanche terminals | Either lead serves as input/output; symmetric clamping in both directions - no cathode band required |
| Lead 1 | Current path to PCB trace | Standard axial termination; 10 mm lead length yields RθJA = 100 °C/W in still air |
| Lead 2 | Current path to PCB trace | Matches Lead 1 electrically and thermally; symmetry supports layout flexibility in differential or common-mode protection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and <1.0 μA leakage at VWM over lifetime |
| 400 W peak pulse power (10/1000 μs) | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| DO-41 mechanical robustness | UL 94 V-0 rated epoxy body withstands reflow and wave soldering up to 275 °C for 10 s |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes stress on downstream 16 V-rated components during transient events |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to clamp fast-rising spikes before reaching ASIC inputs. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (75 V/100 ms) while surviving 175 °C ambient under hood. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against inductive kickback from solenoid/relay coils. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminals to absorb repetitive 400 W surges without derating. Use Value: Eliminates need for external series impedance due to low dynamic impedance (Zdynamic ≈ 0.5 Ω) at IPPM. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side surge protection in AC/DC adapters for USB-C PD chargers subjected to lightning-induced surges on DC output rails. IC Role / Device Role / Timing Role: Final-stage TVS parallel to output capacitor to suppress overshoot during hot-plug events. Use Value: Clamps to 22.5 V within <1 ns, preventing overvoltage damage to 20 V-rated USB-PD controller ICs. |
Use Scenario: Primary protection on telephone line interface circuits (e.g., DSL modems) exposed to induced surges from nearby power lines. IC Role / Device Role / Timing Role: First-line defense before integrated line driver ICs, handling longitudinal and transverse mode transients. Use Value: Bidirectional symmetry ensures equal clamping on tip/ring lines without polarity concerns during installation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Surface-mount SMB package (vs. axial DO-41); same VBR range and PPPM, but lower IPPM (12.3 A) and higher VC (26.0 V) | Requires PCB redesign for SMT placement; better suited for space-constrained consumer electronics vs. through-hole industrial modules | Select when board real estate is limited and automated assembly is preferred; verify layout clearance for 26.0 V clamping margin |
| 1.5KE16CA | Higher PPPM (1500 W) and IPPM (65.2 A); same DO-41 package and VBR range but larger body (DO-201AE) | Used where higher surge immunity (IEC 61000-4-5 Level 5) is mandated, such as outdoor telecom cabinets | Choose for mission-critical infrastructure requiring >10× energy absorption; confirm mechanical fit in existing DO-41 footprint |
Compared with SMBJ16CA and 1.5KE16CA, P4KE16CAHE3/54 offers optimal balance of AEC-Q101 compliance, DO-41 through-hole manufacturability, and 400 W surge handling - making it the preferred choice for cost-sensitive, high-reliability automotive and industrial designs where moderate surge levels apply.
Availability
P4KE16CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4KE16CAHE3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P4KE16CAHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, bidirectional transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and high-temperature operation.
FAQ
What does the 'CA' suffix indicate in P4KE16CAHE3/54?
The 'CA' suffix in P4KE16CAHE3/54 denotes bidirectional configuration - meaning the device provides symmetrical transient voltage clamping in both forward and reverse directions, with no polarity marking required on the DO-41 body. This distinguishes it from unidirectional variants (e.g., P4KE16A) that feature a cathode band and only suppress in one direction.
Is P4KE16CAHE3/54 qualified for automotive use?
Yes, P4KE16CAHE3/54 is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88365 datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and accelerated life testing - validating its suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of P4KE16CAHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE16CAHE3/54 is 22.5 V at 17.8 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay 88365 datasheet and represents the upper voltage limit imposed on protected circuitry during standardized surge events.
How does the HE3 suffix differ from E3 in P4KE16CAHE3/54?
The HE3 suffix in P4KE16CAHE3/54 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 denotes commercial-grade RoHS compliance only (JESD 201 Class 1A). The HE3 variant is intended for automotive and high-reliability industrial applications requiring extended environmental validation.
Can P4KE16CAHE3/54 be used in place of P4KE16A?
No - P4KE16CAHE3/54 is bidirectional while P4KE16A is unidirectional, so direct substitution requires circuit review. Unidirectional P4KE16A has a cathode band and conducts only in reverse bias; replacing it with P4KE16CAHE3/54 may cause unintended conduction in forward-biased signal paths unless design explicitly accommodates bidirectional behavior.
P4KE16CAHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE16CAHE3/54 FAQ
1.How can I place an order for P4KE16CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE16CAHE3/54 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 P4KE16CAHE3/54 reliable?
The price and inventory of P4KE16CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE16CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE16CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE16CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE16CAHE3/54?
P4KE16CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE16CAHE3/54 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 P4KE16CAHE3/54?
For technical support, including P4KE16CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE16CAHE3/54 requirements.
6.How does Aetrix verify that P4KE16CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE16CAHE3/54 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 P4KE16CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE16CAHE3/54?
All P4KE16CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE16CAHE3/54, 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 P4KE16CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE16CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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