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Vishay General Semiconductor - Diodes Division 5KP43AHE3_A/C
- Part No.:
- 5KP43AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP43AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:8,033
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Product details
Overview
5KP43AHE3_A/C from Vishay General Semiconductor is a unidirectional 5000 W transient voltage suppressor (TVS) diode in P600 package, with 43 V stand-off voltage (VWM), 47.8–52.8 V breakdown voltage (VBR), and 69.4 V clamping voltage (VC) at 72 A peak pulse current. It protects MOSFETs and ICs against lightning-induced surges and inductive switching transients in automotive power supplies.
For engineers reviewing the 5KP43AHE3_A/C datasheet, 5KP43AHE3_A/C pinout, 5KP43AHE3_A/C application, or 5KP43AHE3_A/C equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, P600 mechanical dimensions, clamping performance under 10/1000 μs waveform, and direct alternatives for overvoltage protection design-in.
Technical Context
The 5KP43AHE3_A/C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 47.8–52.8 V breakdown range. It clamps transient energy to ≤69.4 V at 72 A, limiting stress on downstream components during 10/1000 μs surges.
Rated for 5000 W peak pulse power (10/1000 μs), it sustains 8.0 W steady-state dissipation on infinite heatsink at TL = 75 °C and handles 500 A non-repetitive forward surge (8.3 ms half-sine). Its P600 epoxy-molded package supports AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 43 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 47.8 V / 52.8 V - Breakdown occurs within this range at 5 mA test current; defines turn-on threshold |
| VC @ IPPM | 69.4 V - Clamped voltage at 72 A peak pulse current; determines maximum stress on protected circuit |
| PPPM | 5000 W - Peak surge power handling capability with 10/1000 μs waveform; critical for lightning immunity |
| IFSM | 500 A - Non-repetitive forward surge rating (8.3 ms half-sine); enables crowbar-style fault clearing |
| TJ max. | +175 °C - Maximum junction temperature; supports under-hood automotive operation |
| Polarity | Unidirectional - Cathode marked by color band; suitable for DC-biased rail protection only |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side (e.g., +43 V rail); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| P600 glass passivated junction | Enables stable 5000 W surge handling and low incremental surge resistance for consistent clamping |
| 10/1000 μs waveform compliance | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive systems |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage overshoot during fast transients, reducing risk of MOSFET gate oxide failure |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint integrity in high-reliability applications with thermal cycling |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rails to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Withstands 5000 W pulses and clamps to 69.4 V, preventing damage to 75 V-rated MOSFETs and enabling fuse coordination without crowbar latch-up. | Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in variable-frequency drives exposed to inductive kickback. IC Role / Device Role / Timing Role: Mounted directly across DC link rails to absorb regenerative energy spikes during rapid deceleration. Use Value: 72 A peak pulse current rating and 69.4 V clamping limit bus overvoltage to safe levels for 100 V-rated electrolytics and gate drivers. |
| Telecom Base Station Power Input | Consumer Appliance SMPS Output |
Use Scenario: Shielding 48 V telecom rectifier outputs from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side output, coordinated with upstream MOVs and gas discharge tubes. Use Value: 5000 W rating and 10/1000 μs response meet ITU-T K.20/21 immunity requirements while maintaining low leakage (<2 μA at 43 V). | Use Scenario: Preventing output overvoltage failures in 36 V DC adapters used in smart home hubs and security cameras. IC Role / Device Role / Timing Role: Secondary-side clamping device placed after isolation transformer to protect downstream USB-PD controllers and sensors. Use Value: 43 V VWM aligns precisely with 36 V nominal output + 20 % tolerance; 69.4 V VC ensures no downstream component exceeds 70 V absolute maximum rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A-E3/52 | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range | Not rated for AEC-Q101; limited to commercial-grade consumer/industrial use | Select when board space is constrained and surge energy is ≤600 W (e.g., low-power sensor nodes) |
| 1.5KE43A | Same VWM/VBR/VC specs but TO-204AE (DO-204AC) package; not AEC-Q101 qualified | Lacks automotive qualification and JESD 201 whisker testing; lower thermal mass than P600 | Choose for legacy designs using axial-leaded packages where AEC-Q101 is not required |
Compared with SMBJ43A-E3/52 and 1.5KE43A, the 5KP43AHE3_A/C delivers 8.3× higher surge power handling and automotive-grade reliability-critical for protecting high-energy DC buses where single-event robustness outweighs footprint savings.
Availability
5KP43AHE3_A/C is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom power inputs, and consumer SMPS requiring stable component supply with full traceability and lifecycle support.
Supply support for 5KP43AHE3_A/C 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 power efficiency.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of crowbar circuits while enabling resettable overvoltage protection.
FAQ
What is the clamping voltage of the 5KP43AHE3_A/C and why does it matter?
The 5KP43AHE3_A/C has a maximum clamping voltage (VC) of 69.4 V at 72 A peak pulse current (10/1000 μs). This value defines the highest voltage imposed on protected circuitry during a surge event. For example, if downstream MOSFETs have a 75 V drain-source rating, the 69.4 V clamping leaves only 5.6 V margin-making precise VC selection essential to avoid catastrophic failure while ensuring reliable triggering.
Is the 5KP43AHE3_A/C qualified for automotive applications?
Yes, the 5KP43AHE3_A/C carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay's ordering nomenclature. It undergoes stress testing including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing-ensuring suitability for under-hood and powertrain control modules where reliability under thermal and electrical stress is mandatory.
How does the P600 package of the 5KP43AHE3_A/C improve thermal performance?
The P600 package of the 5KP43AHE3_A/C provides significantly higher thermal mass and lead-frame surface area compared to SMB or DO-41 packages. With 8.0 W power dissipation capability on an infinite heatsink at TL = 75 °C, it enables sustained energy absorption during repetitive transients-critical in motor drive applications where multiple switching events generate cumulative heat.
Can the 5KP43AHE3_A/C replace a crowbar circuit?
Yes-the 5KP43AHE3_A/C was explicitly designed to replace crowbar circuits in switching power supplies. Unlike thyristor-based crowbars that latch and require power cycle reset, the 5KP43AHE3_A/C clamps transient energy non-latching, allowing system recovery after surge clearance while enabling fuse or breaker coordination to isolate faults without manual intervention.
What is the meaning of the "_A/C" suffix in 5KP43AHE3_A/C?
The "_A/C" suffix in 5KP43AHE3_A/C indicates Vishay's preferred packaging option: "C" denotes 13-inch diameter paper tape and reel with 800 units per reel, while "A" refers to the revision code of the die or process. This matches the ordering information shown in the datasheet's Table "ORDERING INFORMATION (Example)" for standard commercial and automotive-grade shipments.
5KP43AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 72A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP43AHE3_A/C FAQ
1.How can I place an order for 5KP43AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP43AHE3_A/C 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 5KP43AHE3_A/C reliable?
The price and inventory of 5KP43AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP43AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP43AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP43AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP43AHE3_A/C?
5KP43AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP43AHE3_A/C 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 5KP43AHE3_A/C?
For technical support, including 5KP43AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP43AHE3_A/C requirements.
6.How does Aetrix verify that 5KP43AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP43AHE3_A/C 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 5KP43AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP43AHE3_A/C?
All 5KP43AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP43AHE3_A/C, 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 5KP43AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP43AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP43AHE3_A/C Tags
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