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Vishay General Semiconductor - Diodes Division 5KP75A-E3/51
- Part No.:
- 5KP75A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP75A-E3/51.pdf
- Description:
- TVS DIODE 75VWM 121VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,115
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Product details
Overview
5KP75A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 75 V stand-off voltage, and 121 V clamping voltage at 41.3 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the 5KP75A-E3/51 datasheet, 5KP75A-E3/51 pinout, 5KP75A-E3/51 application, or 5KP75A-E3/51 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant matte tin leads, and P600 package thermal performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping overvoltage protection device in parallel with sensitive circuitry. Its glass-passivated P600 junction delivers low incremental surge resistance and sub-nanosecond response time to suppress transients induced by inductive load switching or lightning surges.
It is rated for 5000 W peak pulse power per 10/1000 μs waveform at 0.01% duty cycle, with 8.0 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature. The 5KP75A-E3/51 exhibits a breakdown voltage range of 83.3–92.1 V at 5.0 mA test current and 0.108 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR min/max | 83.3 V / 92.1 V at 5.0 mA - Confirmed breakdown threshold ensures reliable turn-on during overvoltage events |
| VC @ IPPM | 121 V at 41.3 A - Clamping voltage limits downstream component stress during 5000 W transient |
| IPPM | 41.3 A - Peak pulse current capacity with 10/1000 μs waveform determines surge energy handling |
| TJ max | +175 °C - Maximum junction temperature enables operation in under-hood automotive environments |
| Polarity | Unidirectional - Cathode-banded configuration protects against positive-going transients only |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Packaged in industry-standard P600 molded epoxy case (9.5 mm × 8.6 mm × 3.4 mm), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band; leads are axial and non-polarized in layout but functionally asymmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to system ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., DC bus, sensor VCC); voltage referenced to anode during conduction |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without cascaded stages |
| P600 glass passivated junction | Delivers stable VBR and low leakage (<2 μA at VWM) across -55 °C to +175 °C operating range |
| AEC-Q101 qualification | Validates robustness for automotive powertrain and body electronics applications requiring zero field failure risk |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage overshoot during fast transients, reducing stress on downstream MOSFET gate oxides |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, ensuring long-term solder joint integrity in vibration-prone systems |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across input rails upstream of DC/DC converters and microcontrollers. Use Value: Withstands 5000 W surges while limiting clamped voltage to 121 V, preventing latch-up or burnout in 3.3 V/5 V logic domains. | Use Scenario: Safeguarding IGBT gate drivers and current-sense amplifiers in variable-frequency drives. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on DC link bus to absorb inductive kickback from motor windings. Use Value: 175 °C max junction rating allows direct mounting near heat-generating power modules without derating. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Shielding PoE-powered Ethernet switches from lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC distribution, coordinated with upstream GDTs and MOVs. Use Value: 75 V VWM provides 15% margin above nominal 48 V rail, enabling clean clamping without false triggering. | Use Scenario: Protecting microcontroller I/O and relay driver circuits in washing machine main control units. IC Role / Device Role / Timing Role: Point-of-load suppression on 5 V/12 V internal rails feeding solenoid drivers and display interfaces. Use Value: Unidirectional polarity prevents interference with normal forward-biased bias networks while blocking negative transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | 600 W peak power, SMC package, lower IPPM (32.4 A), same VWM/VC ratings | Not AEC-Q101 qualified; suited for cost-sensitive consumer designs with lower surge severity | Select SMBJ75A when board space is constrained and 5000 W capability is unnecessary |
| 1.5KE75A | 1500 W peak power, DO-201 package, higher VC (126 V), same VWM, no AEC-Q101 | Limited thermal mass; requires larger copper area for equivalent power dissipation | Choose 1.5KE75A only for legacy designs where P600 footprint cannot be accommodated |
Compared with SMBJ75A and 1.5KE75A, the 5KP75A-E3/51 delivers 3.3× and 3.3× higher peak pulse power respectively, supports automotive qualification, and maintains tighter clamping performance under repeated surge stress-making it the sole option for demanding AEC-Q101-compliant 75 V rail protection.
Availability
5KP75A-E3/51 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive DC bus safeguarding, and telecom power feed surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 5KP75A-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, and protection devices with emphasis on high-reliability, high-power, and automotive-qualified components.
The 5KP series was engineered specifically for high-energy transient suppression in switching power supply outputs and industrial power conversion systems, targeting applications where crowbar circuits were previously required.
FAQ
What is the maximum clamping voltage of the 5KP75A-E3/51 under surge conditions?
The 5KP75A-E3/51 has a maximum clamping voltage (VC) of 121 V at its rated peak pulse current of 41.3 A using the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and ensures predictable overvoltage limiting during transient events. The 5KP75A-E3/51 maintains this clamping performance across its full operating temperature range.
Is the 5KP75A-E3/51 suitable for automotive applications?
Yes, the 5KP75A-E3/51 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS power supplies. Its 175 °C maximum junction temperature, robust P600 package, and verified performance under temperature cycling and high-humidity bias testing meet automotive reliability requirements. The 5KP75A-E3/51 is explicitly listed in Vishay's AEC-Q101 qualified product table.
What does the "E3/51" suffix indicate in 5KP75A-E3/51?
The "E3" suffix 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. This differs from tape-and-reel variants like /54. The 5KP75A-E3/51 is not AEC-Q101 qualified-only HE3-suffixed versions carry that qualification-so design-in requires verification of compliance needs.
How does the 5KP75A-E3/51 compare to bidirectional TVS diodes?
The 5KP75A-E3/51 is unidirectional and protects only against positive-going transients on the cathode side relative to anode. Unlike bidirectional types, it cannot suppress negative surges without external circuitry. Its advantage lies in lower leakage (<2 μA at 75 V) and tighter VBR tolerance versus bidirectional equivalents. For AC-coupled or dual-polarity protection, the 5KP75A-E3/51 must be paired with complementary devices.
What thermal considerations apply when mounting the 5KP75A-E3/51?
The 5KP75A-E3/51 uses a P600 package with axial leads; thermal performance depends heavily on PCB copper area connected to both terminals. Per Vishay's Fig. 5, derating begins above 25 °C ambient, and 8.0 W steady-state dissipation assumes infinite heatsink conditions. In practice, ≥250 mm² of 2-oz copper per terminal is recommended for continuous 5 W operation. The 5KP75A-E3/51 must avoid placement near other heat sources to maintain 175 °C TJ margin.
5KP75A-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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 41.3A
- 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
5KP75A-E3/51 FAQ
1.How can I place an order for 5KP75A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP75A-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 5KP75A-E3/51 reliable?
The price and inventory of 5KP75A-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 5KP75A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP75A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP75A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP75A-E3/51?
5KP75A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP75A-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 5KP75A-E3/51?
For technical support, including 5KP75A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP75A-E3/51 requirements.
6.How does Aetrix verify that 5KP75A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP75A-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 5KP75A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP75A-E3/51?
All 5KP75A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP75A-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 5KP75A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP75A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP75A-E3/51 Tags
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