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Vishay General Semiconductor - Diodes Division 5KP45A-E3/54
- Part No.:
- 5KP45A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP45A-E3/54.pdf
- Description:
- TVS DIODE 45VWM 72.7VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
5KP45A-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 power rails and signal lines. It features 45 V stand-off voltage (VWM), 50–55.3 V breakdown voltage (VBR), 72.7 V maximum clamping voltage at 68.8 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching spikes in automotive and industrial power supplies.
For engineers reviewing the 5KP45A-E3/54 datasheet, 5KP45A-E3/54 pinout, 5KP45A-E3/54 application, or 5KP45A-E3/54 equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, unidirectional polarity requirement, P600 thermal derating behavior above 25 °C, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during overvoltage events, leveraging a glass-passivated P600 junction to achieve low incremental surge resistance and sub-nanosecond response time. Its unidirectional structure enables integration into DC-biased power rails without reverse leakage concerns under normal operation.
The device sustains 5000 W peak pulse power per JEDEC-standard 10/1000 μs waveform at TA = 25 °C, with thermal derating to ~50 % power capability at TL = 75 °C and full de-rating beyond TJ = 175 °C. It meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker testing (E3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 45 V - maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin for reliable protection. |
| VBR (min/max) | 50.0 V / 55.3 V at 5 mA - defines tight breakdown tolerance window; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 72.7 V at 68.8 A - clamping voltage under full-rated surge; must remain below protected device's absolute max rating. |
| PPPM | 5000 W - peak pulse power handling with 10/1000 μs waveform; supports single-event lightning surge compliance (IEC 61000-4-5 Level 4). |
| TJ max. | +175 °C - maximum junction temperature; enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| Polarity | Unidirectional - cathode-marked device; suitable only for DC-biased applications where reverse conduction is not required. |
| Package | P600 - axial-leaded, UL 94 V-0 molded epoxy case; provides mechanical robustness and thermal mass for transient energy dissipation. |
Pinout & Package
P600 package: axial-leaded, matte tin-plated terminals, cathode indicated by color band. Leads conform to J-STD-002 and JESD 22-B102 solderability standards. Body dimensions: 9.1 mm × 9.1 mm × 25.4 mm (L × W × D), lead diameter 1.32 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lowest potential node; carries full surge current during clamping event. |
| Cathode | High-side connection point | Marked with color band; connected to protected line (e.g., +48 V rail); defines clamping reference. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports PPAP documentation. |
| 5000 W peak pulse power | Enables single-device protection against IEC 61000-4-5 4 kV/2 Ω combination wave surges without parallel staging. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving clamping fidelity. |
| UL 94 V-0 molding compound | Ensures flame-retardant housing integrity during fault conditions, meeting safety standards for industrial and transportation equipment. |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth under thermal cycling, critical for long-term reliability in sealed automotive modules. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Supply Output |
|---|---|
|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator surge events per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and downstream DC-DC converter input. Use Value: Clamps transient to ≤72.7 V within nanoseconds, preserving downstream regulator's 80 V absolute max rating and enabling fuse coordination. |
Use Scenario: Safeguarding output of 36–60 V industrial switching power supply against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-mode protector mounted directly at PSU output terminals, absorbing repetitive 500–1000 A surge currents. Use Value: Withstands ≥5000 W pulses at 0.01 % duty cycle, eliminating need for crowbar SCR circuits while maintaining resettable operation. |
| Sensor Signal Line Surge Suppression | Telecom Equipment AC/DC Input Stage |
|
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from nearby motor switching noise. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional clamp on 24 V sensor supply line, upstream of signal conditioning circuitry. Use Value: Limits induced transients to <73 V while adding negligible loading to 24 V rail due to <2 μA leakage at VWM. |
Use Scenario: Secondary-side transient suppression on telecom rectifier outputs feeding PoE injectors and baseband processors. IC Role / Device Role / Timing Role: High-power TVS on +54 V DC bus, coordinated with upstream MOVs and fuses per GR-1089-CORE. Use Value: Provides precise clamping at 72.7 V with 5000 W rating, reducing voltage overshoot margin needed for downstream ASICs rated to 85 V. |
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 SMAJ45A | Same VWM (45 V), lower PPPM (400 W), SMA package (surface-mount, lower thermal mass) | Not suitable for 5000 W surges; limited to PCB-level ESD/EFT, not lightning or load dump | Select only for space-constrained, low-energy applications where P600 mounting is impractical. |
| Vishay 5KP45CA-E3/54 | Bidirectional variant; identical VWM/VBR/VC/PPPM but symmetrical clamping (±45 V standoff) | Required for AC-coupled or floating signal lines; unsuitable for DC-biased rails with defined polarity | Choose only when protecting bidirectional signals (e.g., RS-485, CAN bus) or AC inputs. |
Compared with SMAJ45A and 5KP45CA-E3/54, the 5KP45A-E3/54 uniquely delivers automotive-grade 5000 W surge immunity in an axial-leaded P600 package with AEC-Q101 qualification - making it the sole option among the three for high-reliability, high-energy DC rail protection in harsh environments.
Availability
5KP45A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply hardening, and telecom infrastructure projects requiring stable component supply with traceable sourcing and lifecycle continuity.
Supply support for 5KP45A-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, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering 5 kW pulse capability in rugged P600 packaging with AEC-Q101 validation.
FAQ
What is the clamping voltage of the 5KP45A-E3/54 under full-rated surge current?
The 5KP45A-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 standard 10/1000 μs waveform. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events - critical for ensuring compatibility with protected devices' absolute maximum voltage ratings.
Is the 5KP45A-E3/54 suitable for automotive applications?
Yes, the 5KP45A-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes JESD 201 Class 1A whisker-resistant leads, UL 94 V-0 flame-retardant epoxy, and thermal performance validated from –55 °C to +175 °C - satisfying requirements for engine control units, body electronics, and ADAS power domains per ISO 16750-2.
Does the 5KP45A-E3/54 have bidirectional capability?
No, the 5KP45A-E3/54 is strictly unidirectional. Its electrical characteristics - including VWM, VBR, and VC - apply only in the reverse-biased direction. For bidirectional protection, the functionally matched part is the 5KP45CA-E3/54, which provides symmetrical clamping around 0 V with ±45 V standoff.
What is the maximum operating temperature for the 5KP45A-E3/54?
The 5KP45A-E3/54 has a maximum junction temperature (TJ max.) of +175 °C and an operating storage temperature range of –55 °C to +175 °C. Derating curves in the datasheet show usable power capability down to ~4 W at TL = 75 °C, supporting deployment in under-hood and high-ambient industrial environments when properly heatsinked.
How does the 5KP45A-E3/54 compare to smaller-package TVS diodes like SMAJ45A?
The 5KP45A-E3/54 delivers 5000 W peak pulse power in a P600 axial package, whereas SMAJ45A offers only 400 W in an SMA surface-mount case. This 12.5× power difference makes the 5KP45A-E3/54 appropriate for lightning and load-dump protection, while SMAJ45A serves only board-level ESD and low-energy EFT - they are not interchangeable without redesigning surge coordination and thermal management.
5KP45A-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):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 72.7V
- Current - Peak Pulse (10/1000µs):
- 68.8A
- 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
5KP45A-E3/54 FAQ
1.How can I place an order for 5KP45A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP45A-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 5KP45A-E3/54 reliable?
The price and inventory of 5KP45A-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 5KP45A-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP45A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP45A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP45A-E3/54?
5KP45A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP45A-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 5KP45A-E3/54?
For technical support, including 5KP45A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP45A-E3/54 requirements.
6.How does Aetrix verify that 5KP45A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP45A-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 5KP45A-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP45A-E3/54?
All 5KP45A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP45A-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 5KP45A-E3/54 part is unused and in its original packaging.
Return procedure for 5KP45A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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