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Vishay General Semiconductor - Diodes Division 5KP40A-E3/54
- Part No.:
- 5KP40A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP40A-E3/54.pdf
- Description:
- TVS DIODE 40VWM 64.5VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:370
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Product details
Overview
5KP40A-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge clamping on DC power rails and signal lines. It features 40 V stand-off voltage (VWM), 44.4–49.1 V breakdown voltage (VBR) at 5 mA, 64.5 V maximum clamping voltage at 77.5 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 5KP40A-E3/54 datasheet, 5KP40A-E3/54 pinout, 5KP40A-E3/54 application, or 5KP40A-E3/54 equivalent, key selection criteria include clamping voltage margin vs. protected device VDS/VCC, unidirectional polarity requirement, P600 thermal dissipation capability, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during transients, conducting only when reverse voltage exceeds its VBR threshold. Its glass-passivated P600 junction delivers low incremental surge resistance (typical <0.1 Ω) and sub-nanosecond response time to suppress lightning-induced surges and inductive switching spikes.
Rated for 175 °C max junction temperature and 500 A non-repetitive forward surge current, it supports robust overvoltage protection in switching power supply outputs and motor drive DC bus lines where fuse coordination and resettable fault handling are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - maximum continuous reverse operating voltage before leakage exceeds 2 µA; sets upper limit for normal circuit operation. |
| VBR min/max | 44.4 V / 49.1 V at 5 mA - guaranteed breakdown range ensures reliable turn-on without premature conduction under nominal conditions. |
| VC @ IPPM | 64.5 V at 77.5 A - clamping voltage defines worst-case overvoltage seen by downstream components during 10/1000 µs surge. |
| PPPM | 5000 W - peak pulse power handling capacity with 10/1000 µs waveform enables protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +175 °C - high junction temperature rating allows use in under-hood automotive environments and thermally constrained PCB layouts. |
| Polarity | Unidirectional - cathode-banded configuration protects against negative transients only; requires correct orientation in series with positive rail. |
| Package | P600 - axial-leaded, UL 94 V-0 molded epoxy case with matte tin-plated leads; supports manual or wave soldering up to 275 °C for 10 s. |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Dimensions: 9.5 mm length × 9.1 mm diameter; lead spacing 9.1 mm; weight 2.776 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-side reference; completes conduction path during reverse surge events. |
| Cathode | Protected line connection / surge input | Connected to line being protected (e.g., +12 V rail); color band identifies this terminal for correct PCB placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and infotainment power rails. |
| 5000 W peak pulse power | Withstands 10/1000 µs surges up to 77.5 A without degradation - eliminates need for redundant crowbar circuits in 24 V/48 V systems. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage stress on protected ICs; e.g., clamps 40 V rail to ≤64.5 V, preserving 20+ V margin for 80 V-rated MOSFETs. |
| 175 °C junction rating | Enables direct mounting on heatsinks or high-temperature PCB zones near power converters without derating penalties. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance; compatible with lead-free reflow and automated assembly processes. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Supply Output |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 40 V. Use Value: Limits transient voltage to 64.5 V, preventing damage to microcontrollers and CAN transceivers rated for 70 V absolute maximum. |
Use Scenario: Safeguarding output of 48 V telecom rectifiers against lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Standoff protector on secondary side, absorbing energy before it reaches downstream DC-DC converters. Use Value: Handles 5000 W pulses without failure, enabling single-device protection instead of multi-stage MOV+TVS designs. |
| MOSFET Gate Driver Protection | Sensor Signal Line Clamping |
|
Use Scenario: Shielding high-side N-channel MOSFET drivers in motor control inverters from shoot-through induced voltage spikes. IC Role / Device Role / Timing Role: Connected across driver supply rail (VDD-GND) to clamp fast-rising gate drive transients. Use Value: Sub-ns response ensures clamping occurs before gate oxide breakdown, preserving driver IC integrity during PWM switching faults. |
Use Scenario: Guarding analog inputs of pressure/temperature sensors in factory automation against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector interface to shunt transients before reaching ADC front-end. Use Value: 2 µA leakage at 40 V prevents signal offset errors in precision 24-bit sensor measurements while maintaining fast transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ40A | Same VWM (40 V), lower PPPM (400 W), DO-214AC package, 64.5 V VC at 32.4 A | Lower power handling limits use to sub-1 kW surges; unsuitable for IEC 61000-4-5 Level 4 compliance. | Select when board space is constrained and surge energy is limited to <100 mJ. |
| ON Semiconductor 1.5KE40A | Same VWM (40 V), identical P600 package, but 1500 W PPPM and 64.5 V VC at 23.3 A | Lacks AEC-Q101 qualification; not approved for automotive under-hood use. | Prefer for cost-sensitive industrial controls where automotive qualification is unnecessary. |
Compared with SMAJ40A and 1.5KE40A, the 5KP40A-E3/54 provides 3.3× higher peak pulse power and automotive qualification - making it the sole choice for protecting high-energy automotive power domains while maintaining P600 thermal mass and proven field reliability.
Availability
5KP40A-E3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial DC supply output clamping, and MOSFET gate driver safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for 5KP40A-E3/54 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-power performance.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering robust clamping with AEC-Q101 validation and P600 thermal resilience.
FAQ
What is the clamping voltage of the 5KP40A-E3/54 under a 10/1000 µs surge?
The 5KP40A-E3/54 has a maximum clamping voltage (VC) of 64.5 V at 77.5 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that protected circuitry will not experience reverse voltages exceeding 64.5 V during standardized surge events - critical for ensuring compatibility with 70 V-rated power devices.
Is the 5KP40A-E3/54 suitable for automotive applications?
Yes, the 5KP40A-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, robust P600 package, and validated reliability under temperature cycling and HTRB testing make it appropriate for engine control units, body electronics, and ADAS power rails where transient immunity is mission-critical.
Does the 5KP40A-E3/54 have bidirectional polarity?
No, the 5KP40A-E3/54 is unidirectional only. It conducts during reverse-biased transients (cathode positive relative to anode) and blocks forward current up to 3.5 V at 100 A. For bidirectional protection, a separate part number such as 5KP40CA must be selected - the "A" suffix denotes unidirectional configuration.
What is the standoff voltage rating of the 5KP40A-E3/54?
The 5KP40A-E3/54 has a reverse stand-off voltage (VWM) of 40 V, meaning it remains in high-impedance blocking mode for all reverse voltages up to 40 V with leakage current ≤2 µA. This parameter ensures no interference with normal 36–40 V system operation while providing precise turn-on threshold for surge events.
How does the P600 package of the 5KP40A-E3/54 support thermal management?
The P600 package of the 5KP40A-E3/54 features a large epoxy body (9.5 mm × 9.1 mm) with axial leads optimized for heat transfer to PCB copper pours or external heatsinks. Its 8.0 W power dissipation rating at TL = 75 °C and 175 °C TJ max enable sustained operation after repeated surges - especially important in motor drive and power supply applications with frequent transient exposure.
5KP40A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 77.5A
- 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
5KP40A-E3/54 FAQ
1.How can I place an order for 5KP40A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP40A-E3/54 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 5KP40A-E3/54 reliable?
The price and inventory of 5KP40A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP40A-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP40A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP40A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP40A-E3/54?
5KP40A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP40A-E3/54 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 5KP40A-E3/54?
For technical support, including 5KP40A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP40A-E3/54 requirements.
6.How does Aetrix verify that 5KP40A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP40A-E3/54 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 5KP40A-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP40A-E3/54?
All 5KP40A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP40A-E3/54, 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 5KP40A-E3/54 part is unused and in its original packaging.
Return procedure for 5KP40A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP40A-E3/54 Tags
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