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Vishay General Semiconductor - Diodes Division 5KP45-E3/54
- Part No.:
- 5KP45-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP45-E3/54.pdf
- Description:
- TVS DIODE 45VWM 80.3VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:3,896
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Product details
Overview
5KP45-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection. It features 45 V stand-off voltage (VWM), 50.0–55.3 V breakdown voltage (VBR at 5.0 mA), 72.7 V maximum clamping voltage (VC) at 68.8 A peak pulse current, and 5000 W peak pulse power (10/1000 μs). It is widely used to protect MOSFETs and ICs in switching power supply outputs against inductive load transients.
For engineers reviewing the 5KP45-E3/54 datasheet, 5KP45-E3/54 pinout, 5KP45-E3/54 application, or 5KP45-E3/54 equivalent, key selection criteria include clamping performance under 10/1000 μs surges, unidirectional polarity compatibility with DC rail protection, thermal derating above 25 °C, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS diode employs a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional structure provides forward conduction capability up to 600 A (8.3 ms half-sine), enabling crowbar-like behavior without external triggering circuitry.
The device operates across –55 °C to +175 °C junction temperature range and is rated for 8.0 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature. Its 0.106 %/°C VBR temperature coefficient ensures predictable clamping shift over temperature in industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 45.0 V - Maximum continuous reverse operating voltage before leakage exceeds 2.0 μA; defines safe DC rail margin for protection placement. |
| VBR (min/max) | 50.0 V / 55.3 V at 5.0 mA - Confirmed breakdown threshold range; ensures reliable turn-on before downstream component damage. |
| VC @ IPPM | 72.7 V at 68.8 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum transient exposure level. |
| PPPM | 5000 W - Peak pulse power handling per JEDEC standard waveform; supports single-event surge robustness in power supply outputs. |
| TJ max. | +175 °C - Maximum junction temperature rating; enables operation in under-hood automotive or high-ambient industrial settings. |
| Polarity | Unidirectional - Cathode-banded configuration; suitable for DC rail protection where reverse blocking and forward surge conduction are required. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements; supports use in engine control, body electronics, and ADAS modules. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; RoHS-compliant (E3 suffix); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of protected DC rail; conducts during overvoltage events to clamp voltage rise. |
| Cathode | Reverse-biased terminal / clamping node | Connected to higher-potential rail (e.g., VOUT of SMPS); defines VWM and VBR reference; color band identifies this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-event suppression of high-energy transients common in industrial motor drives and automotive alternator load dumps. |
| 72.7 V clamping voltage at 68.8 A | Provides defined overvoltage ceiling for 45 V-rated downstream components such as gate drivers or microcontrollers. |
| AEC-Q101 qualification | Validates reliability for automotive applications including powertrain and chassis control modules requiring extended temperature and life-cycle compliance. |
| P600 package with JESD 22-B106 solderability | Supports automated reflow and wave soldering at 275 °C for 10 s; ensures robust interconnect integrity in high-volume manufacturing. |
| 0.106 %/°C VBR tempco | Minimizes clamping voltage drift across –40 °C to +125 °C ambient, critical for stable protection in wide-temperature automotive deployments. |
Applications
| Switching Power Supply Output Protection | Automotive Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting the 48 V output rail of a 500 W DC-DC converter against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VOUT and GND to clamp transients within 1 ns, limiting voltage excursion to ≤72.7 V. Use Value: Prevents latch-up or gate oxide rupture in downstream synchronous rectifier MOSFETs rated for 80 V maximum drain-source voltage. |
Use Scenario: Safeguarding 5 V sensor supply lines in an engine control unit exposed to ISO 7637-2 Pulse 1 and Pulse 2a transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 45 V) deployed on main battery input to absorb load dump energy before it propagates to LDO regulators. Use Value: Maintains system uptime by avoiding fuse blow or reset events during 12 V/24 V vehicle electrical system disturbances. |
| Industrial Motor Drive DC Bus Protection | Telecom Power Shelf Surge Mitigation |
Use Scenario: Shielding the 40–60 V DC link of a variable frequency drive from commutation spikes generated by IGBT switching. IC Role / Device Role / Timing Role: High-power TVS connected across bus rails to shunt transient current away from electrolytic bulk capacitors and gate driver ICs. Use Value: Extends capacitor lifetime by reducing RMS ripple current induced by repetitive 5 kA-level surges during motor startup/stopping cycles. |
Use Scenario: Hardening the –48 V DC feed to telecom line cards against lightning-induced surges entering via copper distribution frames. IC Role / Device Role / Timing Role: Primary-stage unidirectional suppressor mounted at power entry point to limit let-through energy to secondary TVS arrays and DC-DC converters. Use Value: Meets Telcordia GR-1089-CORE Level 3 surge immunity requirements while maintaining <100 ns response latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | Lower peak power (600 W), smaller SMB package, same VWM (45 V), higher VC (73.5 V at 6.5 A) | Targeted at board-level signal line or low-power rail protection; insufficient for 5 kA-level surges | Select when space-constrained layouts require SMT mounting and surge energy is limited to <100 J. |
| 1.5KE47A | Same P600 package, lower peak power (1500 W), VWM = 47 V, VC = 77.0 V at 19.5 A | Designed for general-purpose PCB-level protection; lacks AEC-Q101 qualification | Choose for cost-sensitive industrial controls where automotive qualification is not mandated and peak currents remain below 20 A. |
Compared with SMBJ45A and 1.5KE47A, the 5KP45-E3/54 delivers 3.3× higher surge power handling and automotive-grade reliability-making it the only option among the three qualified for under-hood ECU power inputs requiring sustained 5000 W transient absorption.
Availability
5KP45-E3/54 is available at Aetrix Electronics and suitable for switching power supplies, automotive ECUs, industrial motor drives, and telecom power shelves requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 5KP45-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, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The 5KP series was engineered specifically for high-energy transient suppression in power conversion systems-targeting applications where crowbar circuits were previously required, such as SMPS output stages and battery-fed industrial controllers.
FAQ
What is the clamping voltage of the 5KP45-E3/54 under a 10/1000 μs surge?
The 5KP45-E3/54 exhibits a maximum clamping voltage (VC) of 72.7 V when subjected to its rated peak pulse current of 68.8 A using the standardized 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The 5KP45-E3/54 maintains this clamping performance consistently across its specified operating temperature range.
Is the 5KP45-E3/54 suitable for automotive applications?
Yes, the 5KP45-E3/54 is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including engine control units, body control modules, and ADAS power domains. Its –55 °C to +175 °C operating junction temperature range, robust P600 package, and validated surge endurance meet stringent automotive reliability requirements. The 5KP45-E3/54 is explicitly listed in Vishay's AEC-Q101 qualified product documentation.
What does the "E3/54" suffix indicate in 5KP45-E3/54?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance, while "/54" specifies the preferred packaging code: 13-inch diameter paper tape and reel containing 800 units. This ordering format aligns with Vishay's standardized part numbering for the 5KP family and ensures correct material categorization and logistics handling for the 5KP45-E3/54.
How does the 5KP45-E3/54 differ from bidirectional TVS diodes?
The 5KP45-E3/54 is unidirectional, meaning it blocks reverse voltage up to 45 V (VWM) and conducts only in forward bias during overvoltage events-ideal for DC rail protection. Bidirectional variants (e.g., 5KP45CA) offer symmetrical clamping for AC lines or differential signals but lack forward conduction capability. The 5KP45-E3/54's unidirectional architecture enables crowbar-style fault clearing in power supply outputs, a function not supported by bidirectional types.
Can the 5KP45-E3/54 replace a 1.5KE45A in an existing design?
No direct replacement is recommended: the 1.5KE45A has only 1500 W peak power and 33.2 A IPPM, whereas the 5KP45-E3/54 delivers 5000 W and 68.8 A-more than double the surge capacity. Substituting without layout and thermal review risks overstressing the 1.5KE45A's lower power rating. The 5KP45-E3/54 requires careful PCB copper area evaluation due to its higher energy dissipation; its use should follow Vishay's P600 thermal guidelines and not assume drop-in compatibility with 1.5KE-series footprints.
5KP45-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 80.3V
- Current - Peak Pulse (10/1000µs):
- 62.3A
- 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
5KP45-E3/54 FAQ
1.How can I place an order for 5KP45-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP45-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 5KP45-E3/54 reliable?
The price and inventory of 5KP45-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 5KP45-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP45-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP45-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP45-E3/54?
5KP45-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP45-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 5KP45-E3/54?
For technical support, including 5KP45-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP45-E3/54 requirements.
6.How does Aetrix verify that 5KP45-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP45-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 5KP45-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP45-E3/54?
All 5KP45-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP45-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 5KP45-E3/54 part is unused and in its original packaging.
Return procedure for 5KP45-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP45-E3/54 Tags
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