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Vishay General Semiconductor - Diodes Division 5KP40HE3/54
- Part No.:
- 5KP40HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP40HE3/54.pdf
- Description:
- TVS DIODE 40VWM 71.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,077
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Product details
Overview
5KP40HE3/54 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), 40 V stand-off voltage (VWM), and clamping voltage of 64.5 V at 77.5 A peak pulse current. It is AEC-Q101 qualified and used to protect MOSFETs and ICs in automotive power supply outputs against inductive switching transients.
For engineers reviewing the 5KP40HE3/54 datasheet, 5KP40HE3/54 pinout, 5KP40HE3/54 application, or 5KP40HE3/54 equivalent, this page delivers verified electrical specs, clamping behavior under surge conditions, thermal derating curves, RoHS-compliant lead finish details, and AEC-Q101 qualification status - all critical for automotive-grade overvoltage protection design validation.
Technical Context
The 5KP40HE3/54 operates as a unidirectional avalanche diode with glass-passivated P600 junction, responding in sub-nanosecond time to transients. Its 40 V stand-off voltage ensures stable blocking during normal operation, while its 64.5 V clamping voltage at 77.5 A limits downstream voltage stress under 10/1000 μs surges.
Designed for high-energy transient suppression on DC power rails, it replaces crowbar circuits in switching power supplies. Thermal performance is governed by junction-to-lead resistance, with 8.0 W steady-state dissipation on infinite heatsink at TL = 75 °C and full derating above TA = 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous reverse operating voltage before leakage exceeds 2.0 μA |
| VBR min/max | 44.4 V / 49.1 V at 5.0 mA - Ensures reliable avalanche initiation within specified tolerance band |
| VC @ IPPM | 64.5 V at 77.5 A - Clamped voltage during 10/1000 μs surge; defines maximum stress on protected circuit |
| PPPM | 5000 W - Peak pulse power handling capability under standardized waveform; validates robustness vs. ISO 7637-2 Pulse 5a |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive environments |
| Qualification | AEC-Q101 qualified - Confirmed reliability for automotive electronic systems per stress test requirements |
| Package | P600 - Axial-leaded, molded epoxy case meeting UL 94 V-0; enables manual or wave soldering |
Pinout & Package
P600 package: axial-leaded, cylindrical molded epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 2 whisker test (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path during surge | Connected to ground or low-side return; conducts when transient exceeds VBR |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 40 V rail); blocks current until breakdown threshold is exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe load dump and inductive kick events without cascading failure |
| AEC-Q101 qualification | Validates long-term reliability under automotive temperature cycling, humidity, and mechanical shock conditions |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision |
| UL 94 V-0 molding compound | Ensures flame retardancy in enclosed automotive modules and power supply enclosures |
| Matte tin plating, JESD 201 Class 2 | Prevents tin whisker growth in high-reliability applications with extended field life |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 40 V nominal battery-fed ECUs from load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 40 V rail and chassis ground to clamp surges up to 120 V. Use Value: Limits peak voltage to 64.5 V at 77.5 A, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in 48 V industrial motor drives during inductive turn-off spikes. IC Role / Device Role / Timing Role: Mounted across DC bus input to absorb repetitive switching energy and prevent overvoltage shutdown. Use Value: Withstands 5000 W pulses and 175 °C junction temperature, enabling operation in sealed, convection-cooled enclosures. |
| Telecom Power Rectifier Output | Consumer Appliance SMPS Output |
Use Scenario: Securing +48 V telecom rectifier outputs against lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Installed at rectifier output stage to suppress common-mode transients before filtering. Use Value: Fast response and low clamping voltage preserve hold-up time and avoid false triggering of OVP circuits. | Use Scenario: Shielding 40 V auxiliary rails in smart appliance power supplies from relay coil flyback and ESD coupling. IC Role / Device Role / Timing Role: Placed directly at SMPS secondary side to shunt transient energy before reaching MCU or sensor interface. Use Value: UL 94 V-0 package and RoHS compliance meet global safety and environmental certification requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ40AHE3/52 | 600 W PPPM, SMC package, same VWM/VC but lower surge capacity | Suitable for lower-energy transients; not rated for automotive load dump | Select when board space is constrained and surge energy remains below 600 W |
| 5KP40A-E3/54 | Same P600 package and electrical specs, but commercial-grade (non-AEC-Q101) | Lacks automotive qualification; acceptable for industrial/commercial use only | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMBJ40AHE3/52 and 5KP40A-E3/54, the 5KP40HE3/54 uniquely combines 5000 W surge rating with AEC-Q101 qualification in P600, making it the only option validated for under-hood automotive deployment requiring both high energy absorption and long-term reliability.
Availability
5KP40HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial motor control, telecom power systems, and consumer appliance designs requiring stable component supply with full traceability and lifecycle management.
Supply support for 5KP40HE3/54 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in DC power rails - targeting automotive load dump, industrial motor drive snubbing, and telecom rectifier output protection where 5 kW-level surge immunity is mandatory.
FAQ
What is the clamping voltage of the 5KP40HE3/54 under peak surge conditions?
The 5KP40HE3/54 clamps to 64.5 V at its rated peak pulse current of 77.5 A under a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the maximum voltage imposed on protected circuitry during transient events. The clamping voltage remains stable across temperature due to the device's low temperature coefficient of VBR (0.105 %/°C), ensuring consistent protection in automotive environments.
Is the 5KP40HE3/54 suitable for automotive applications?
Yes, the 5KP40HE3/54 is AEC-Q101 qualified and explicitly designed for automotive use. Its P600 package, 175 °C maximum junction temperature, and robust surge rating make it appropriate for engine control units, body electronics, and ADAS power supplies exposed to load dump and jump-start transients. The HE3 suffix confirms compliance with JESD 201 Class 2 whisker testing required for automotive longevity.
How does the 5KP40HE3/54 differ from the 5KP40A-E3/54?
The 5KP40HE3/54 and 5KP40A-E3/54 share identical electrical specifications and P600 packaging, but differ in qualification: the HE3 version is AEC-Q101 qualified and meets JESD 201 Class 2 whisker requirements, while the E3 version is commercial-grade only. Both are RoHS compliant, but only the HE3 suffix guarantees automotive reliability testing including temperature cycling and humidity bias.
What is the maximum steady-state power dissipation for the 5KP40HE3/54?
The 5KP40HE3/54 has a maximum steady-state power dissipation (PD) of 8.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. Derating begins linearly above TA = 25 °C per Figure 2 in the datasheet, reaching zero dissipation at TJ = 175 °C. This rating supports continuous operation in thermally managed power supply designs.
Does the 5KP40HE3/54 have polarity marking, and how is it identified?
Yes, the 5KP40HE3/54 features a color band on the cathode end to indicate polarity - standard for unidirectional TVS diodes. The cathode must be connected to the protected line (e.g., 40 V rail), and the anode to ground. This orientation ensures proper blocking during normal operation and controlled avalanche conduction during overvoltage events, as confirmed in the Vishay 88308 datasheet mechanical data section.
5KP40HE3/54 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 71.4V
- Current - Peak Pulse (10/1000µs):
- 70A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP40HE3/54 FAQ
1.How can I place an order for 5KP40HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP40HE3/54 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 5KP40HE3/54 reliable?
The price and inventory of 5KP40HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP40HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP40HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP40HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP40HE3/54?
5KP40HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP40HE3/54 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 5KP40HE3/54?
For technical support, including 5KP40HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP40HE3/54 requirements.
6.How does Aetrix verify that 5KP40HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP40HE3/54 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 5KP40HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP40HE3/54?
All 5KP40HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP40HE3/54, 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 5KP40HE3/54 part is unused and in its original packaging.
Return procedure for 5KP40HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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