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Vishay General Semiconductor - Diodes Division 5KP48A-E3/73
- Part No.:
- 5KP48A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP48A-E3/73.pdf
- Description:
- TVS DIODE 48VWM 77.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:8,745
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Product details
Overview
5KP48A-E3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection of DC power rails and signal lines. It features 48 V stand-off voltage (VWM), 53.3–58.9 V breakdown range (VBR at 5.0 mA), 77.4 V maximum clamping voltage (VC) at 64.6 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 5KP48A-E3/73 datasheet, 5KP48A-E3/73 pinout, 5KP48A-E3/73 application, or 5KP48A-E3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, clamping performance under surge, and RoHS-compliant packaging details essential for overvoltage protection design validation and BOM selection.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during transients, leveraging a glass-passivated P600 junction to achieve low incremental surge resistance and sub-nanosecond response time. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device is rated for 175 °C maximum junction temperature and supports 8.0 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature. It complies with AEC-Q101 for automotive-grade reliability and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 48.0 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 53.3–58.9 V at 5.0 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events without premature conduction. |
| VC (Clamping Voltage) | 77.4 V at 64.6 A (10/1000 µs) - Limits downstream voltage stress during 5 kW surges, protecting 60 V-rated components. |
| PPPM (Peak Pulse Power) | 5000 W - Sustains high-energy lightning or inductive-switching transients without failure when properly mounted. |
| IPPM (Peak Pulse Current) | 64.6 A - Peak current capability directly tied to clamping voltage; determines minimum trace width and PCB layout robustness. |
| TJmax | 175 °C - Enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| Polarity | Unidirectional - Blocks reverse current until VBR is exceeded; suited for DC power rail protection with defined ground reference. |
Pinout & Package
Package: P600 - Axial-leaded, molded epoxy body with matte tin-plated leads; UL 94 V-0 rated; 9.5 mm body length, 0.375" (9.5 mm) lead spacing; RoHS compliant (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during positive transients when cathode is biased higher. |
| Cathode | Clamping terminal | Marked by color band; connected to protected line (e.g., +48 V rail); initiates avalanche conduction when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 48 V systems without parallel staging. |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive powertrain and body electronics; includes temperature cycling, HTRB, and surge endurance testing per stress test plan. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving clamping precision for sensitive 5 V or 3.3 V logic interfaces. |
| UL 94 V-0 molded epoxy case | Prevents flame propagation in enclosed power modules and battery management systems during fault-induced thermal runaway. |
| Matte tin-plated leads (J-STD-002 compliant) | Ensures reliable solder wetting and intermetallic formation in reflow and wave solder processes across industrial manufacturing lines. |
Applications
| Automotive DC-DC Converter Output Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects 48 V output stage of isolated DC-DC converters in ADAS domain controllers against load dump and inductive kickback. IC Role / Device Role / Timing Role: Clamps transient spikes to ≤77.4 V within nanoseconds, preventing damage to downstream buck regulators and CAN transceivers. Use Value: Eliminates need for external crowbar SCR circuitry while maintaining system reset capability after fuse interruption. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring ESD and relay coil flyback. IC Role / Device Role / Timing Role: Acts as primary shunt protector on input filter network; clamps 1 kV/50 Ω contact discharge to safe levels before reaching optocoupler input. Use Value: Extends mean time between failures (MTBF) of input modules in factory automation by suppressing >99.9% of repetitive 100 A surges. |
| Telecom Remote Radio Unit Power Rail | Server PSU Overvoltage Crowbar Backup |
|
Use Scenario: Secures +48 V bias rail feeding RF power amplifiers in 5G remote radio heads exposed to lightning-induced surges on tower-mounted cabling. IC Role / Device Role / Timing Role: Provides first-line defense with 5 kW energy absorption, limiting voltage excursion to preserve GaN FET gate oxide integrity. Use Value: Reduces field return rate of RRUs by mitigating catastrophic failure modes linked to transient overstress on front-end power stages. |
Use Scenario: Serves as secondary overvoltage safeguard in redundant 12 V server power supplies, activating only if primary OVP fails. IC Role / Device Role / Timing Role: Functions as fail-safe crowbar: triggers hard short when output exceeds 55 V, forcing upstream breaker trip without semiconductor latch-up. Use Value: Prevents data center rack-level fire hazard by ensuring controlled shutdown instead of uncontrolled thermal runaway in failed PSUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48A-E3/52 | Lower peak power (600 W), smaller SMB package, 70 V clamping at 10 A. | Suitable for board-level signal line protection; insufficient for 5 kW bulk power rail surges. | Select when space-constrained layouts require surface-mount devices with moderate surge handling. |
| 1.5KE48A-E3/54 | Same P600 package, but 1.5 kW rating (1500 W), 75 V clamping at 20 A. | Limited to lower-energy transients; not rated for AEC-Q101 or automotive under-hood use. | Choose for cost-sensitive industrial controls where full 5 kW immunity is not required. |
Compared with SMBJ48A-E3/52 and 1.5KE48A-E3/54, the 5KP48A-E3/73 delivers 3.3× higher peak power and AEC-Q101 qualification - making it the only option among the three validated for automotive 48 V power distribution and telecom base station front-end protection.
Availability
5KP48A-E3/73 is available at Aetrix Electronics and suitable for automotive power conversion, industrial PLC input conditioning, telecom remote radio units, and server PSU crowbar backup requiring stable component supply across multi-year production cycles.
Supply support for 5KP48A-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, TVS devices, and power MOSFETs with emphasis on reliability and application-specific performance.
The 5KP series was engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained 5 kW surge immunity and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 5KP48A-E3/73 under a 10/1000 µs surge?
The 5KP48A-E3/73 has a maximum clamping voltage (VC) of 77.4 V when subjected to its rated peak pulse current of 64.6 A with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees voltage limiting during standardized surge events, protecting downstream 60 V-rated components. The 5KP48A-E3/73 maintains this clamping performance across its specified operating temperature range.
Is the 5KP48A-E3/73 AEC-Q101 qualified?
The 5KP48A-E3/73 is RoHS-compliant and commercial-grade; AEC-Q101 qualification applies specifically to the HE3-suffixed variant (e.g., 5KP48AHE3/73). While the E3 version shares identical electrical characteristics and P600 packaging, only the HE3 part undergoes the full AEC-Q101 stress test sequence including temperature cycling, HTRB, and surge endurance. The 5KP48A-E3/73 remains suitable for industrial and telecom applications where automotive qualification is not mandated.
What is the standoff voltage and why does it matter for the 5KP48A-E3/73?
The 5KP48A-E3/73 has a standoff voltage (VWM) of 48.0 V - the maximum continuous reverse voltage it can block without significant leakage current. This parameter ensures the device remains non-conductive during normal operation while allowing sufficient margin below its 53.3–58.9 V breakdown range. Selecting a VWM aligned with system nominal voltage prevents false triggering and extends service life in 48 V power architectures.
Can the 5KP48A-E3/73 replace a 1.5KE48A in the same P600 footprint?
Yes, the 5KP48A-E3/73 is mechanically compatible with the 1.5KE48A in the P600 package and shares identical pinout and polarity marking (cathode band). However, it delivers 3.3× higher peak pulse power (5000 W vs. 1500 W) and superior clamping performance under high-current transients. System redesign is not required for footprint replacement, but thermal management and PCB trace sizing must accommodate the higher energy dissipation capability of the 5KP48A-E3/73.
What is the maximum junction temperature rating for the 5KP48A-E3/73?
The 5KP48A-E3/73 has a maximum junction temperature (TJmax) of +175 °C, enabling reliable operation in high-ambient environments such as automotive engine compartments, industrial motor drives, and outdoor telecom equipment. This rating is supported by its glass-passivated chip junction and UL 94 V-0 epoxy encapsulation. Derating curves in the datasheet define allowable power dissipation above 25 °C ambient to maintain TJ ≤ 175 °C.
5KP48A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 64.6A
- 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
5KP48A-E3/73 FAQ
1.How can I place an order for 5KP48A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP48A-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 5KP48A-E3/73 reliable?
The price and inventory of 5KP48A-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 5KP48A-E3/73 is usually 5 days.
3.What payment methods are accepted for 5KP48A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP48A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP48A-E3/73?
5KP48A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP48A-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 5KP48A-E3/73?
For technical support, including 5KP48A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP48A-E3/73 requirements.
6.How does Aetrix verify that 5KP48A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP48A-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 5KP48A-E3/73 meets industry standards.
7.What is the process for return or replacement of 5KP48A-E3/73?
All 5KP48A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP48A-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 5KP48A-E3/73 part is unused and in its original packaging.
Return procedure for 5KP48A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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