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Vishay General Semiconductor - Diodes Division 5KP45AHE3_A/C
- Part No.:
- 5KP45AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP45AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:9,754
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Product details
Overview
5KP45AHE3_A/C from Vishay General Semiconductor is a unidirectional 5000 W transient voltage suppressor (TVS) diode in P600 package, with 45 V stand-off voltage (VWM), 50.0–55.3 V breakdown voltage (VBR) at 5 mA, and 72.7 V clamping voltage (VC) at 68.8 A peak pulse current. It protects power rails and signal lines against lightning-induced surges and inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the 5KP45AHE3_A/C datasheet, 5KP45AHE3_A/C pinout, 5KP45AHE3_A/C application, or 5KP45AHE3_A/C equivalent, key selection criteria include clamping performance under 10/1000 μs surge, AEC-Q101 qualification for automotive use, thermal derating above 25 °C, and compatibility with P600 PCB footprints and lead-free reflow profiles.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its breakdown threshold (VBR), clamping transient energy into a low-impedance path to ground. Its glass-passivated P600 junction delivers low incremental surge resistance and sub-nanosecond response time.
Rated for 5000 W peak pulse power (10/1000 μs waveform, 0.01 % duty cycle), it sustains 500 A non-repetitive forward surge current and operates across –55 °C to +175 °C junction temperature range, with thermal derating applied above TA = 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 45.0 V - Maximum continuous reverse voltage before leakage exceeds 2 μA; defines operating rail margin before clamping initiates. |
| VBR (Breakdown Voltage) | 50.0–55.3 V at 5 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction. |
| VC (Clamping Voltage) | 72.7 V at 68.8 A - Peak voltage seen by protected circuit during full-rated 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 5000 W - Surge energy handling capacity under standardized 10/1000 μs waveform; enables robust protection in high-energy environments. |
| TJ max. | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial settings. |
| Polarity | Unidirectional - Cathode marked by color band; suitable for DC-biased rails where reverse conduction must be blocked. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronic modules per stress test requirements; supports PPAP documentation and OEM sourcing. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground | Current return path during clamping; must be routed with minimal inductance to maintain low VC. |
| Cathode | High-side connection to protected line (e.g., 48 V rail) | Connected to the node requiring overvoltage protection; polarity marking ensures correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection of 48 V automotive power nets against ISO 7637-2 Pulse 5a/b surges without parallel staging. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD; eliminates need for additional qualification testing. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes voltage overshoot during surge events, reducing stress on downstream MOSFETs, controllers, and gate drivers. |
| P600 package with 2.776 g unit weight | Provides mechanical robustness and thermal mass for transient energy dissipation; compatible with standard through-hole wave-solder and selective reflow processes. |
| 175 °C maximum junction temperature | Supports placement near heat-generating components (e.g., DC/DC converters) without thermal derating penalties in most chassis-mount configurations. |
Applications
| Automotive Power Distribution | Industrial DC Power Supply Output |
|---|---|
Use Scenario: Protection of 48 V battery-fed ECUs against load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before reaching PMIC or MCU. Use Value: Clamps to 72.7 V at 68.8 A, limiting stress on 80 V-rated input stages while surviving repetitive 10/1000 μs pulses up to 5000 W. |
Use Scenario: Output rail protection in 24–48 V industrial switch-mode power supplies subject to inductive kickback. IC Role / Device Role / Timing Role: Parallel-connected TVS at SMPS output to absorb flyback energy from solenoid or motor driver loads. Use Value: Withstands 500 A IFSM surge and maintains stable clamping across –40 °C to +125 °C ambient, ensuring reliability in factory automation environments. |
| Telecom DC Feeder Lines | Renewable Energy Charge Controllers |
Use Scenario: Overvoltage suppression on -48 V telecom rectifier outputs exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Cathode-to-rail configuration shunting transients to system ground, coordinated with upstream GDT or MOV stages. Use Value: Low 2 μA leakage at 45 V VWM prevents unnecessary standby current draw; fast response avoids latch-up in sensitive monitoring ICs. |
Use Scenario: PV array input protection in solar charge controllers subjected to rapid voltage spikes during cloud-edge events. IC Role / Device Role / Timing Role: Front-end TVS on MPPT input stage to prevent damage to buck converter MOSFETs and current-sense amplifiers. Use Value: 175 °C TJ max. and AEC-Q101 qualification ensure long-term stability in outdoor enclosures with wide thermal cycling. |
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 | Lower PPPM (400 W), SMC package (smaller footprint, lower thermal mass), 73.0 V VC at 43.5 A | Suitable for space-constrained consumer electronics; insufficient for automotive load dump per ISO 16750-2. | Select only for low-energy, non-automotive applications where board area is critical and surge levels remain below 1 kW. |
| ON Semiconductor 1.5KE45A | Same VWM/VBR/VC specs, but 1500 W PPPM (10/1000 μs), DO-201 package, not AEC-Q101 qualified | Acceptable for industrial control panels with moderate surge exposure; lacks automotive qualification and thermal robustness. | Use where cost is prioritized over automotive compliance and high-energy surge immunity; verify thermal design with 1.5 W PD limit. |
Compared with 5KP45AHE3_A/C, SMAJ45A offers compact size but sacrifices >85 % peak power handling, while 1.5KE45A matches electrical parameters but lacks AEC-Q101 validation and thermal headroom-making 5KP45AHE3_A/C the sole choice for automotive-grade 5 kW surge protection in P600 form factor.
Availability
5KP45AHE3_A/C is available at Aetrix Electronics and suitable for automotive power distribution, industrial DC power supply output, telecom DC feeder lines, and renewable energy charge controllers requiring stable component supply and long-lifecycle support.
Supply support for 5KP45AHE3_A/C 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power, and automotive-qualified components.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of crowbar circuits and enabling fuse/breaker coordination during overvoltage events.
FAQ
What is the clamping voltage of the 5KP45AHE3_A/C at its rated peak pulse current?
The 5KP45AHE3_A/C has a maximum clamping voltage (VC) of 72.7 V at 68.8 A peak pulse current (IPPM), measured under the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on the protected circuit during full-rated surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The 5KP45AHE3_A/C achieves this clamping performance while maintaining low incremental surge resistance due to its glass-passivated P600 junction structure.
Is the 5KP45AHE3_A/C qualified for automotive applications?
Yes, the 5KP45AHE3_A/C is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 88308, Revision: 16-Mar-2023). This qualification covers stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress test, and electrostatic discharge. The 5KP45AHE3_A/C is therefore approved for use in automotive electronic control units, body electronics, and powertrain subsystems where transient immunity to load dump and ISO 7637-2 pulses is required.
What is the difference between the 'E3' and 'HE3' suffixes in the 5KP45AHE3_A/C part number?
The 'HE3' suffix in 5KP45AHE3_A/C indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas 'E3' denotes RoHS compliance only (commercial grade, no automotive qualification). The '_A/C' denotes packaging: 'C' stands for 13-inch paper tape and reel, 800 units per reel. Thus, 5KP45AHE3_A/C is the AEC-Q101-qualified, Class 2 whisker-resistant, reel-packaged variant of the 45 V TVS diode.
Can the 5KP45AHE3_A/C be used in bidirectional configurations?
No, the 5KP45AHE3_A/C is unidirectional only, as explicitly stated in the Vishay datasheet under FEATURES and PRIMARY CHARACTERISTICS. It conducts in reverse bias above VBR and blocks forward current like a standard diode. For bidirectional transient protection, a separate device such as the 5KP45CA (center-tapped, bidirectional variant) must be selected. Using two 5KP45AHE3_A/C devices in series opposing configuration is not recommended due to mismatched VBR tolerances and undefined clamping behavior.
What is the thermal derating behavior of the 5KP45AHE3_A/C above 25 °C ambient?
The 5KP45AHE3_A/C follows the derating curve in Figure 2 of the Vishay datasheet: peak pulse power (PPPM) decreases linearly from 100 % at 25 °C to approximately 50 % at 125 °C ambient, with full derating to zero at 175 °C. This reflects junction temperature limits and thermal resistance of the P600 package. Designers must apply this derating when estimating surge capability in high-ambient environments, especially in enclosed automotive or industrial enclosures where heatsinking is limited.
5KP45AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP45AHE3_A/C FAQ
1.How can I place an order for 5KP45AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP45AHE3_A/C 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 5KP45AHE3_A/C reliable?
The price and inventory of 5KP45AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP45AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP45AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP45AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP45AHE3_A/C?
5KP45AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP45AHE3_A/C 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 5KP45AHE3_A/C?
For technical support, including 5KP45AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP45AHE3_A/C requirements.
6.How does Aetrix verify that 5KP45AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP45AHE3_A/C 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 5KP45AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP45AHE3_A/C?
All 5KP45AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP45AHE3_A/C, 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 5KP45AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP45AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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