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Vishay General Semiconductor - Diodes Division 5KP15A-E3/51
- Part No.:
- 5KP15A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP15A-E3/51.pdf
- Description:
- TVS DIODE 15VWM 24.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,664
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Product details
Overview
5KP15A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection. It features 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 5.0 mA, 5000 W peak pulse power (10/1000 μs), and clamps to 24.4 V at 205 A peak pulse current - ideal for safeguarding MOSFETs and ICs in automotive power supplies and industrial control inputs.
For engineers reviewing the 5KP15A-E3/51 datasheet, 5KP15A-E3/51 pinout, 5KP15A-E3/51 application, or 5KP15A-E3/51 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, low clamping ratio (VC/VBR ≈ 1.39), and compatibility with 275 °C solder dip per JESD 22-B106.
Technical Context
This TVS diode uses a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional structure provides forward conduction capability up to 600 A IFSM (8.3 ms half-sine), enabling crowbar-like overvoltage shutdown without external triggering.
The device operates across –55 °C to +175 °C and is rated for repetitive 0.01 % duty cycle surges. Thermal derating follows a defined curve (Fig. 2 & Fig. 5), with 8.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15.0 V - maximum reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR min/max | 16.7 V / 18.5 V at 5.0 mA - ensures reliable turn-on during transients while avoiding false triggering |
| VC @ IPPM | 24.4 V at 205 A - clamping voltage limits downstream component stress during 10/1000 μs surge |
| PPPM | 5000 W - peak pulse power handling capacity under standardized surge waveform |
| TJ max | +175 °C - enables use in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - supports DC-biased lines where forward conduction must be retained |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
5KP15A-E3/51 is housed in a P600 molded epoxy package (JEDEC DO-201AD outline), with matte tin-plated leads. Cathode is marked by a color band on the body. The device has two terminals: anode and cathode - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse bias reference | Connected to system ground or low-side return path; defines polarity orientation for unidirectional clamping |
| Cathode | Clamping node / Surge current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V/24 V rails |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics without additional qualification effort |
| 175 °C maximum junction temperature | Supports placement near heat-generating components (e.g., MOSFETs, inductors) in compact power modules |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during clamping, reducing stress on downstream silicon |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, ensuring long-term solder joint integrity in thermal cycling |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp spikes up to ±100 V. Use Value: Withstands 5000 W surges and maintains clamping at ≤24.4 V, preventing damage to LDOs and microcontrollers. | Use Scenario: Safeguarding PLC analog input modules connected to 24 V sensor loops exposed to inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal/power input to absorb repetitive 10/1000 μs transients from solenoid switching. Use Value: 15 V VWM allows operation across full 24 V nominal range while providing margin for ripple and tolerance. |
| Telecom DC Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Front-end protection of PoE-powered equipment receiving 48 V DC from midspan injectors. IC Role / Device Role / Timing Role: Unidirectional clamping device on primary DC input to suppress induced lightning surges. Use Value: 205 A IPPM rating handles high-current transients while maintaining low thermal impedance via P600 package. | Use Scenario: Overvoltage protection on mainboard 12 V rail in washing machines subject to relay contact bounce and motor back-EMF. IC Role / Device Role / Timing Role: Crowbar-replacement TVS on power entry to prevent latch-up in MCU and driver ICs. Use Value: Fast response time (<1 ns) and 175 °C TJ rating ensure robustness in thermally constrained white goods enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range | Not suitable for IEC 61000-4-5 Level 4; limited to board-level ESD and lower-energy transients | Select when space-constrained layouts preclude P600 and surge energy is ≤600 W |
| 1.5KE15A | Same P600 package and 5000 W rating, but legacy JEDEC DO-201AD variant with higher VC (25.5 V) | Marginally higher clamping voltage reduces protection level for 3.3 V/5 V logic interfaces downstream | Choose only if legacy BOM continuity is required and 1.1 V higher VC is acceptable |
Compared with SMBJ15A and 1.5KE15A, the 5KP15A-E3/51 delivers superior energy handling in the same footprint as 1.5KE15A while offering tighter clamping than both - making it optimal for automotive and industrial systems requiring robust, AEC-Q101-validated surge immunity.
Availability
5KP15A-E3/51 is available at Aetrix Electronics and suitable for automotive power supply protection, industrial motor drive inputs, and telecom DC power feeds requiring stable component supply and long-term lifecycle support.
Supply support for 5KP15A-E3/51 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 ruggedized performance.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering 5 kW surge capability in a standardized P600 package with AEC-Q101 validation.
FAQ
What is the clamping voltage of the 5KP15A-E3/51 under a 10/1000 μs surge?
The 5KP15A-E3/51 clamps to a maximum of 24.4 V when subjected to its rated peak pulse current of 205 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and represents the upper limit of voltage seen by downstream circuitry during a full-power transient event. The clamping behavior is repeatable and specified at TA = 25 °C, with derating applied above that temperature per Figure 2 in the datasheet.
Is the 5KP15A-E3/51 suitable for automotive applications?
Yes, the 5KP15A-E3/51 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - including glass-passivated junction, P600 package with UL 94 V-0 molding compound, and 175 °C maximum junction temperature - meets stringent automotive environmental and reliability requirements. The HE3 variant is fully qualified; the E3 suffix indicates commercial-grade RoHS compliance, but this specific part number (5KP15A-E3/51) retains AEC-Q101 qualification per Vishay's ordering matrix and datasheet note (1).
How does the 5KP15A-E3/51 differ from the 1.5KE15A?
The 5KP15A-E3/51 and 1.5KE15A share the P600 package and 15 V standoff rating, but the 5KP15A-E3/51 offers tighter clamping (24.4 V vs. 25.5 V at rated IPPM) and improved thermal performance due to updated chip design and passivation. Both are unidirectional and rated for 5000 W, but the 5KP series reflects Vishay's newer generation with enhanced consistency and AEC-Q101 validation across the full family.
What is the maximum reverse leakage current of the 5KP15A-E3/51 at its stand-off voltage?
At its 15.0 V stand-off voltage (VWM) and TA = 25 °C, the 5KP15A-E3/51 exhibits a maximum reverse leakage current (ID) of 2.0 μA. This low leakage ensures minimal power loss in standby operation and avoids false triggering in high-impedance sensing circuits. Leakage increases with temperature and voltage stress, but remains within specification up to TJ = 175 °C per derating curves in the datasheet.
Can the 5KP15A-E3/51 be used in bidirectional configurations?
No, the 5KP15A-E3/51 is unidirectional only, as confirmed in the "Features" section of the datasheet. It conducts in forward bias and clamps in reverse bias - it cannot suppress negative-going transients on AC-coupled or bipolar lines. For bidirectional protection, a pair of 5KP15A-E3/51 devices in series opposition or a dedicated bidirectional TVS (e.g., 5KP15CA) must be used instead.
5KP15A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 205A
- 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
5KP15A-E3/51 FAQ
1.How can I place an order for 5KP15A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP15A-E3/51 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 5KP15A-E3/51 reliable?
The price and inventory of 5KP15A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP15A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP15A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP15A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP15A-E3/51?
5KP15A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP15A-E3/51 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 5KP15A-E3/51?
For technical support, including 5KP15A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP15A-E3/51 requirements.
6.How does Aetrix verify that 5KP15A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP15A-E3/51 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 5KP15A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP15A-E3/51?
All 5KP15A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP15A-E3/51, 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 5KP15A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP15A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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