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Vishay General Semiconductor - Diodes Division 5KP9.0A-E3/51
- Part No.:
- 5KP9.0A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP9.0A-E3/51.pdf
- Description:
- TVS DIODE 9VWM 15.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,267
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Product details
Overview
5KP9.0A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 5.0 mA, 5000 W peak pulse power (10/1000 μs), and clamps transients to ≤15.4 V at 325 A. It is used to protect MOSFETs, ICs, and sensor interfaces in automotive power supplies and industrial control systems.
For engineers reviewing the 5KP9.0A-E3/51 datasheet, 5KP9.0A-E3/51 pinout, 5KP9.0A-E3/51 application, or 5KP9.0A-E3/51 equivalent, key selection criteria include unidirectional polarity, P600 package compatibility, 175 °C max junction temperature, AEC-Q101 qualification status, and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode employs a glass-passivated P600 chip junction optimized for fast response (<1 ps) and low incremental surge resistance. Its unidirectional configuration provides reverse-biased clamping only - forward conduction is limited to 3.5 V at 100 A, making it unsuitable for bidirectional AC line protection without external circuitry.
The device operates across –55 °C to +175 °C and is rated for 5000 W peak pulse power with 0.01 % duty cycle. Derating begins above 25 °C ambient per Fig. 2, and thermal management requires adequate PCB copper area or heatsinking due to its 8.0 W steady-state power dissipation limit at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 10.0 V / 11.1 V at 5.0 mA - Ensures reliable turn-on margin above nominal rail voltage |
| VC @ IPPM | ≤15.4 V at 325 A - Clamping voltage defines worst-case overvoltage seen by protected IC |
| PPPM | 5000 W (10/1000 μs) - Supports high-energy surges common in automotive load-dump events |
| IFSM | 600 A (8.3 ms half-sine) - Withstands repetitive inrush or fault currents without degradation |
| TJ max | +175 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
5KP9.0A-E3/51 uses the axial-lead P600 package: molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 9.5 mm body length, 0.375" lead spacing. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Cathode terminal | Connected to system ground or lower-potential rail; clamping occurs when cathode-to-anode voltage exceeds VBR |
| Cathode (non-banded end) | Anode terminal | Connected to protected line (e.g., 9 V supply rail); conducts during overvoltage to shunt current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse rating | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) up to 12 V systems |
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HTRB, and ESD robustness |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes stress on downstream components while maintaining sufficient noise margin |
| 175 °C junction rating | Supports placement near heat-generating components (e.g., power MOSFETs, regulators) without derating penalty |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and JEDEC MSL-1 handling requirements |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 9 V auxiliary rails in vehicle infotainment ECUs from load-dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 9 V rail and chassis ground to clamp surges >15 V within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in LDOs and microcontrollers during battery-disconnect events. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD and inductive switching spikes on 4–20 mA loop lines. Use Value: Maintains signal integrity below 15.4 V clamping threshold, avoiding ADC saturation or op-amp rail-to-rail clipping. |
| DC-DC Converter Output Clamping | MOSFET Gate Driver Surge Suppression |
Use Scenario: Safeguarding the 9 V output of an isolated flyback converter powering isolated gate drivers. IC Role / Device Role / Timing Role: TVS connected from secondary-side output to local ground to suppress transformer leakage-induced spikes. Use Value: Limits overshoot to ≤15.4 V, ensuring gate driver ICs (e.g., Si82xx) remain within absolute maximum ratings. | Use Scenario: Protecting high-side N-channel MOSFET gate drive signals in motor control inverters. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp Miller-induced voltage spikes during fast switching transitions. Use Value: Prevents unintended turn-on or gate oxide breakdown by limiting transient excursions to <15.4 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Lower peak power (600 W), smaller SMB package, same VWM/VBR range | Not suitable for load-dump; limited to ESD and low-energy transients | Select when board space is constrained and surge energy is <100 mJ |
| 1.5KE9.1A | Same P600 package, 1500 W rating, higher clamping voltage (14.5 V @ 103 A) | Insufficient for ISO 7637-2 Pulse 5a compliance in 12 V systems | Select only for cost-sensitive non-automotive applications with lower surge severity |
Compared with SMBJ9.0A and 1.5KE9.1A, the 5KP9.0A-E3/51 delivers 3.3× higher peak power than SMBJ9.0A and 3.3× higher surge current capability than 1.5KE9.1A - enabling robust protection in automotive and industrial 9 V rail applications where sustained 5000 W clamping is required.
Availability
5KP9.0A-E3/51 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC-DC converter output clamping requiring stable component supply and AEC-Q101 traceability.
Supply support for 5KP9.0A-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 packaging.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering 5 kW clamping in the standardized P600 form factor with AEC-Q101 validation.
FAQ
What is the clamping voltage of the 5KP9.0A-E3/51 under maximum surge conditions?
The 5KP9.0A-E3/51 clamps to a maximum of 15.4 V when subjected to its rated peak pulse current of 325 A (10/1000 μs waveform). This value is guaranteed per JEDEC test conditions and represents the worst-case overvoltage imposed on protected circuitry during a full-power transient event.
Is the 5KP9.0A-E3/51 suitable for bidirectional signal line protection?
No - the 5KP9.0A-E3/51 is unidirectional only, with clamping action occurring only in reverse bias. For bidirectional protection (e.g., RS-485, USB, CAN), a symmetric TVS array or dedicated bidirectional device such as SMAJ9.0CA must be used instead of the 5KP9.0A-E3/51.
Does the 5KP9.0A-E3/51 require a heatsink for continuous operation?
No heatsink is required for transient suppression, but for sustained power dissipation, thermal design must follow the 8.0 W derating curve in Fig. 5. At TL = 75 °C, the 5KP9.0A-E3/51 supports 8.0 W; operation above this requires PCB copper area ≥ 25 cm² or forced airflow - the 5KP9.0A-E3/51 itself does not include a thermal pad or mounting tab.
What does the "E3/51" suffix indicate in 5KP9.0A-E3/51?
The "E3" denotes RoHS-compliant matte tin plating meeting JESD 201 Class 1A whisker resistance, while "/51" specifies the preferred packaging code: 500-piece bulk pack in ammo pack format (not tape-and-reel). This differs from /54 (800-piece tape-and-reel) and confirms commercial-grade - not AEC-Q101 - qualification unless paired with "HE3".
How does the 5KP9.0A-E3/51 compare to the 5KP9.0CA variant?
The 5KP9.0CA is the bidirectional version with symmetrical clamping in both polarities and identical VC, PPPM, and package. The 5KP9.0A-E3/51 is unidirectional only - using it in place of 5KP9.0CA on AC or floating lines will fail to suppress positive-going transients, making the 5KP9.0A-E3/51 inappropriate for those roles.
5KP9.0A-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 325A
- 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
5KP9.0A-E3/51 FAQ
1.How can I place an order for 5KP9.0A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP9.0A-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 5KP9.0A-E3/51 reliable?
The price and inventory of 5KP9.0A-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 5KP9.0A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP9.0A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP9.0A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP9.0A-E3/51?
5KP9.0A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP9.0A-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 5KP9.0A-E3/51?
For technical support, including 5KP9.0A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP9.0A-E3/51 requirements.
6.How does Aetrix verify that 5KP9.0A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP9.0A-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 5KP9.0A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP9.0A-E3/51?
All 5KP9.0A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP9.0A-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 5KP9.0A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP9.0A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP9.0A-E3/51 Tags
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