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Vishay General Semiconductor - Diodes Division 5KP40-E3/73
- Part No.:
- 5KP40-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP40-E3/73.pdf
- Description:
- TVS DIODE 40VWM 71.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,415
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Product details
Overview
5KP40-E3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 40 V stand-off voltage (VWM), 44.4–49.1 V breakdown voltage (VBR at 5.0 mA), 64.5 V maximum clamping voltage (VC) 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 5KP40-E3/73 datasheet, 5KP40-E3/73 pinout, 5KP40-E3/73 application, or 5KP40-E3/73 equivalent, key selection criteria include unidirectional polarity, 175 °C max junction temperature, AEC-Q101 qualification (via HE3 variant), RoHS-compliant matte tin leads, and P600 package compatibility with high-surge PCB layouts requiring robust thermal dissipation.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by overvoltage transients - it remains high-impedance below VWM (40 V), then avalanches sharply at VBR (min 44.4 V) to limit downstream voltage to ≤64.5 V during 10/1000 μs surges up to 77.5 A. Its glass-passivated P600 junction enables fast response (<1 ns) and low incremental surge resistance.
The device is rated for 8.0 W steady-state power dissipation on an infinite heatsink at TL = 75 °C and withstands 500 A non-repetitive forward surge (8.3 ms half-sine). Its -55 °C to +175 °C operating range and AEC-Q101 qualification (E3 suffix denotes commercial grade; HE3 required for automotive) define its use envelope in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - maximum continuous reverse working voltage before leakage exceeds 2.0 μA; sets upper limit for normal operation on protected rail. |
| VBR (min/max) | 44.4 V / 49.1 V at 5.0 mA - guaranteed avalanche onset range; ensures predictable triggering across temperature and unit variation. |
| VC @ IPPM | 64.5 V at 77.5 A - clamped voltage during full-rated 5000 W transient; determines maximum stress on downstream components. |
| PPPM | 5000 W - peak pulse power handling with 10/1000 μs waveform; defines single-event surge immunity level per JEDEC standards. |
| TJ max | +175 °C - maximum junction temperature; enables reliable operation in under-hood automotive or high-ambient industrial settings. |
| Polarity | Unidirectional - cathode marked by color band; blocks reverse conduction until breakdown, suitable for DC rail protection only. |
| Package | P600 - axial-leaded, molded epoxy case (9.5 mm length × 5.6 mm diameter); UL 94 V-0 rated, supports manual or wave soldering (275 °C/10 s max). |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode indicated by colored band. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 1A whisker test (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential node; completes clamping path during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., +40 V rail); avalanche conduction occurs from cathode to anode when VWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power | Enables protection against severe lightning-induced or inductive-switching surges without failure, per 10/1000 μs standard. |
| 64.5 V clamping voltage at 77.5 A | Keeps protected ICs and MOSFETs within safe operating area during worst-case transient, reducing need for oversized downstream components. |
| 175 °C max junction temperature | Supports deployment in engine control units, motor drives, and industrial PLCs where ambient temperatures exceed 105 °C. |
| AEC-Q101 qualified (HE3 variant) | Validates reliability for automotive electronics; E3 suffix indicates commercial-grade version meeting same construction and process controls. |
| P600 mechanical robustness | Molded UL 94 V-0 epoxy body withstands mechanical stress and humidity exposure in outdoor or factory-floor installations. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Supply Output |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and bulk capacitor. Use Value: Limits voltage spikes to ≤64.5 V during 5000 W surges, preventing damage to microcontrollers and CAN transceivers without crowbar circuitry. |
Use Scenario: Safeguarding output of 40 V switching power supply feeding servo motor drivers. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor connected across output terminals. Use Value: Absorbs inductive kickback from motor windings while maintaining 40 V nominal operation and enabling fuse/breaker coordination. |
| Sensor Signal Line Protection | Telecom DC Feeder Protection |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in harsh factory environments. IC Role / Device Role / Timing Role: Low-leakage (≤2.0 μA at 40 V) clamping diode on signal return path. Use Value: Prevents ESD and cable discharge events from corrupting 4–20 mA loop integrity or damaging ADC front-ends. |
Use Scenario: Guarding -48 V telecom rectifier outputs against lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: High-power unidirectional TVS on DC feed line prior to DC/DC converters. Use Value: Withstands repetitive 10/1000 μs surges up to 5000 W while maintaining stable -48 V system operation and minimizing downtime. |
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 40 V VWM, but SMA package (lower 400 W PPPM); 64.5 V VC at 32.4 A. | Not suitable for 5000 W surge events; limited to board-level ESD or low-energy transients. | Select 5KP40-E3/73 when full 5 kW surge immunity is required; choose SMAJ40A only for space-constrained, lower-energy designs. |
| ON Semiconductor 1.5KE40A | Same P600 package and 40 V VWM, but 1500 W PPPM; 64.5 V VC at 23.3 A. | Lacks capability for high-repetition or high-energy industrial transients; no AEC-Q101 option. | 5KP40-E3/73 delivers >3× peak power vs. 1.5KE40A; required where legacy 1.5KE devices fail under sustained surge testing. |
Compared with SMAJ40A and 1.5KE40A, the 5KP40-E3/73 provides triple the surge energy handling in the same P600 footprint, enabling fewer devices per rail and eliminating derating concerns in automotive and heavy-industrial deployments.
Availability
5KP40-E3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial DC power supply output safeguarding, and telecom feeder line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP40-E3/73 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, MOSFETs, 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 systems - targeting replacement of crowbar circuits in switching supplies and compliance with ISO 7637-2 and IEC 61000-4-5 surge immunity requirements.
FAQ
What is the clamping voltage of the 5KP40-E3/73 under full-rated surge conditions?
The 5KP40-E3/73 clamps to a maximum of 64.5 V when subjected to its full-rated 77.5 A peak pulse current (10/1000 μs waveform). This value is measured and guaranteed per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Is the 5KP40-E3/73 suitable for automotive applications?
The 5KP40-E3/73 uses the same die and P600 construction as the AEC-Q101-qualified 5KP40HE3/73 variant. While the E3 suffix denotes commercial-grade qualification, its 175 °C TJ max, robust P600 package, and tested surge performance make it deployable in non-safety-critical automotive subsystems - though design-in requires validation per vehicle-specific EMC requirements.
How does the 5KP40-E3/73 differ from the 1.5KE40A in practical use?
The 5KP40-E3/73 delivers 5000 W peak pulse power versus 1500 W for the 1.5KE40A - a >3× surge energy capacity. Both share P600 packaging and 40 V VWM, but the 5KP40-E3/73 sustains higher peak currents (77.5 A vs. 23.3 A) and maintains tighter VBR tolerance (5 % vs. 10 %), making it essential for demanding industrial and automotive load-dump protection.
What is the meaning of the "-E3/73" suffix in 5KP40-E3/73?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads qualified to JESD 201 Class 1A whisker testing. The "/73" specifies packaging: 73 = 800-piece tape-and-reel on 13″ diameter reel, per Vishay's ordering convention for P600 devices.
Can the 5KP40-E3/73 be used in bidirectional configurations?
No - the 5KP40-E3/73 is unidirectional only, with cathode marked by a color band. Bidirectional protection requires two devices in series opposing configuration or a dedicated bidirectional TVS such as the 5KP40CA. Using a single 5KP40-E3/73 on AC or bipolar rails will result in forward conduction and failure.
5KP40-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP40-E3/73 FAQ
1.How can I place an order for 5KP40-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP40-E3/73 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 5KP40-E3/73 reliable?
The price and inventory of 5KP40-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP40-E3/73 is usually 5 days.
3.What payment methods are accepted for 5KP40-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP40-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP40-E3/73?
5KP40-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP40-E3/73 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 5KP40-E3/73?
For technical support, including 5KP40-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP40-E3/73 requirements.
6.How does Aetrix verify that 5KP40-E3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP40-E3/73 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 5KP40-E3/73 meets industry standards.
7.What is the process for return or replacement of 5KP40-E3/73?
All 5KP40-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP40-E3/73, 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 5KP40-E3/73 part is unused and in its original packaging.
Return procedure for 5KP40-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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