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Vishay General Semiconductor - Diodes Division 5KP18-E3/54
- Part No.:
- 5KP18-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP18-E3/54.pdf
- Description:
- TVS DIODE 18VWM 32.2VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,852
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Product details
Overview
5KP18-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, rated for 5000 W peak pulse power (10/1000 μs), 18 V stand-off voltage (VWM), and clamping voltage of 29.2 V at 171 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive power supplies and industrial switching converters.
For engineers reviewing the 5KP18-E3/54 datasheet, 5KP18-E3/54 pinout, 5KP18-E3/54 application, or 5KP18-E3/54 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and compatibility with 13" tape-and-reel delivery for automated assembly.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, activating above its breakdown voltage (VBR = 20.0–22.1 V) to shunt transient energy to ground. Its glass-passivated P600 junction enables fast response (<1 ns) and stable clamping under repetitive 0.01% duty cycle surges.
Designed for high-energy transients from inductive load switching or lightning-induced surges, it sustains 5000 W peak pulse power without degradation when mounted on adequate thermal mass. The 18 V stand-off rating ensures compatibility with 15–18 V nominal DC bus systems while maintaining low leakage (<2.0 μA at VWM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 18.0 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail. |
| VBR @ IT=50 mA | 20.0–22.1 V - Breakdown threshold range; defines precise turn-on point for overvoltage protection. |
| VC @ IPPM=171 A | 29.2 V - Clamped voltage during 5000 W transient; limits stress on downstream components. |
| PPPM | 5000 W - Peak pulse power handling (10/1000 μs waveform); supports high-energy surge immunity per IEC 61000-4-5. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| Polarity | Unidirectional - Cathode-banded configuration; suitable for DC supply line protection only, not AC or bidirectional signals. |
| Package | P600 - Axial-leaded, molded epoxy body (9.5 mm L × 8.6 mm W × 1.32 mm lead dia); UL 94 V-0 rated, RoHS-compliant. |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002/JESD 22-B102, qualified for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current entry during forward conduction | Connected to protected circuit's ground or low-side return path; carries surge current to reference plane. |
| Cathode (banded end) | Current entry during reverse clamping | Connected to protected line (e.g., +18 V rail); initiates clamping when voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, humidity bias, and mechanical shock. |
| 5000 W peak pulse power | Withstands Level 4 IEC 61000-4-5 surges (4 kV line-to-ground) without failure or parameter shift. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage overshoot during clamping-critical for protecting 20 V-rated MOSFETs and logic ICs. |
| Fast response time (<1 ns) | Activates before transient edge propagates through PCB traces, preventing damage to upstream components. |
| RoHS-compliant, whisker-tested (JESD 201 Class 1A) | Ensures long-term reliability in vibration-prone environments such as automotive ECUs and industrial motor drives. |
Applications
| Automotive Power Supply Protection | Industrial Switching Converter Output |
|---|---|
Use Scenario: Protecting 12–18 V battery-fed control modules from load-dump transients (SAE J1113-11) and alternator ripple. IC Role / Device Role / Timing Role: Parallel-connected clamping TVS placed directly across input terminals of DC-DC controllers or microcontrollers. Use Value: Limits transient voltage to ≤29.2 V, preserving 32 V-rated input stages and enabling fuse coordination without crowbar circuitry. | Use Scenario: Safeguarding output rails of 15–24 V isolated flyback or forward converters against reflected switching spikes. IC Role / Device Role / Timing Role: Secondary-side transient suppressor mounted adjacent to rectifier output, clamping within nanoseconds of spike onset. Use Value: Prevents output overvoltage from damaging downstream regulators or analog sensors, eliminating need for snubber networks. |
| MOSFET Gate Driver Protection | Sensor Signal Line Surge Suppression |
Use Scenario: Shielding high-side N-channel MOSFET gate drivers in motor control inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Unidirectional TVS tied between gate and source, activated only during positive-going gate overvoltage events. Use Value: Clamps gate-source voltage to 29.2 V, staying well below typical 30 V MOSFET VGS(max), avoiding destructive avalanche. | Use Scenario: Hardening analog outputs (e.g., 4–20 mA loops, CAN transceiver I/O) in vehicle cabin sensors against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at VWM) placed at connector interface, referenced to local ground. Use Value: Maintains signal integrity while suppressing ±8 kV contact ESD per IEC 61000-4-2 without distorting low-bandwidth sensor waveforms. |
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 SMAJ18A | Lower peak power (400 W), SMA package (surface-mount), 18 V VWM, 29.2 V VC at 13.7 A. | Not suitable for 5 kA-level surges; intended for board-level ESD, not system-level lightning or load dump. | Select when space-constrained layouts require SMT and surge requirements are ≤400 W. |
| ON Semiconductor 1.5KE18A | Same P600 package, 18 V VWM, but lower peak power (1500 W), higher VC (30.0 V at 50 A), non-AEC-Q101. | Lacks automotive qualification; limited to commercial/industrial use where ambient temperature stays ≤125 °C. | Select for cost-sensitive non-automotive designs where 1.5 kW surge immunity suffices. |
Compared with SMAJ18A and 1.5KE18A, the 5KP18-E3/54 delivers 3.3× higher surge capacity than the SMAJ18A and 3.3× higher than the 1.5KE18A-enabling single-device protection against full SAE J1113-11 load dump without parallel staging, while supporting automotive-grade reliability and thermal robustness up to +175 °C.
Availability
5KP18-E3/54 is available at Aetrix Electronics and suitable for automotive power supply protection, industrial switching converter output stabilization, and MOSFET gate driver hardening requiring stable component supply across extended production lifecycles.
Supply support for 5KP18-E3/54 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, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade performance.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems-delivering 5 kW clamping capability in rugged P600 packaging with AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of the 5KP18-E3/54 under rated surge conditions?
The 5KP18-E3/54 clamps to a maximum of 29.2 V when subjected to its rated peak pulse current of 171 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and ensures downstream components see no more than 29.2 V during transient events. The 5KP18-E3/54 maintains this clamping performance across its full operating temperature range.
Is the 5KP18-E3/54 suitable for automotive applications?
Yes-the 5KP18-E3/54 carries AEC-Q101 qualification and is explicitly rated for automotive under-hood use. Its 175 °C maximum junction temperature, robust P600 package, and validated performance under temperature cycling and mechanical shock make it appropriate for engine control units, body electronics, and ADAS power supplies. The 5KP18-E3/54 meets SAE J1113-11 load-dump immunity requirements when properly mounted.
Does the 5KP18-E3/54 have bidirectional polarity?
No-the 5KP18-E3/54 is unidirectional only, with a cathode band marking the terminal that connects to the protected line. It conducts in reverse breakdown during overvoltage events and blocks forward current like a standard diode. For AC or bidirectional signal line protection, a separate bidirectional variant (e.g., 5KP18CA) would be required-not the 5KP18-E3/54.
What is the lead finish and soldering compatibility of the 5KP18-E3/54?
The 5KP18-E3/54 features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. It supports wave and dip soldering up to 275 °C for 10 seconds, per JESD 22-B106. The "E3" suffix confirms JESD 201 Class 1A whisker resistance, ensuring reliability in vibration-intensive automotive applications. The 5KP18-E3/54 is RoHS-compliant and halogen-free per JEDEC JS709A.
How does the 5KP18-E3/54 differ from the 1.5KE18A in practical design use?
The 5KP18-E3/54 offers 5000 W peak pulse power versus 1500 W for the 1.5KE18A-making it suitable for severe transients like automotive load dump, whereas the 1.5KE18A fits lighter-duty industrial surges. The 5KP18-E3/54 also features AEC-Q101 qualification and 175 °C operation, unlike the commercial-grade 1.5KE18A. In layout, both use P600, but the 5KP18-E3/54 requires greater thermal mass for heat dissipation during repeated events.
5KP18-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18V
- Voltage - Breakdown (Min):
- 20V
- Voltage - Clamping (Max) @ Ipp:
- 32.2V
- Current - Peak Pulse (10/1000µs):
- 155A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP18-E3/54 FAQ
1.How can I place an order for 5KP18-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP18-E3/54 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 5KP18-E3/54 reliable?
The price and inventory of 5KP18-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP18-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP18-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP18-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP18-E3/54?
5KP18-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP18-E3/54 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 5KP18-E3/54?
For technical support, including 5KP18-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP18-E3/54 requirements.
6.How does Aetrix verify that 5KP18-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP18-E3/54 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 5KP18-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP18-E3/54?
All 5KP18-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP18-E3/54, 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 5KP18-E3/54 part is unused and in its original packaging.
Return procedure for 5KP18-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP18-E3/54 Tags
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