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Vishay General Semiconductor - Diodes Division 5KP48AHE3_A/C
- Part No.:
- 5KP48AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP48AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:9,179
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Product details
Overview
5KP48AHE3_A/C from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 48 V stand-off voltage (VWM), 53.3–58.9 V breakdown voltage (VBR) at 5 mA, 77.4 V clamping voltage (VC) at 64.6 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - used in automotive power supply input stages and industrial motor drive DC bus protection.
For engineers reviewing the 5KP48AHE3_A/C datasheet, 5KP48AHE3_A/C pinout, 5KP48AHE3_A/C application, or 5KP48AHE3_A/C equivalent, key selection criteria include clamping performance under 64.6 A surge, unidirectional polarity confirmation, AEC-Q101 qualification for automotive use, thermal derating above 25 °C, and compatibility with P600 PCB footprint and lead-free reflow profiles.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during transients, leveraging a glass-passivated P600 chip junction to achieve low incremental surge resistance and sub-nanosecond response time. Its unidirectional structure provides reverse-biased clamping only, with forward conduction limited to 3.5 V at 100 A.
Designed for high-energy surge suppression, it sustains 5000 W peak pulse power (10/1000 μs) and 500 A non-repetitive forward surge current (8.3 ms half-sine), while maintaining stable operation across –55 °C to +175 °C junction temperature range and meeting UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 53.3 V / 58.9 V at 5 mA - ensures reliable breakdown onset within defined tolerance band |
| VC @ IPPM | 77.4 V at 64.6 A - clamping voltage limiting downstream component stress during worst-case surge |
| PPPM | 5000 W - peak transient energy absorption capability with JEDEC-standard 10/1000 μs waveform |
| TJ max. | +175 °C - enables placement near high-heat sources like MOSFETs or bridge rectifiers without thermal shutdown |
| Polarity | Unidirectional - cathode-marked device for DC rail protection where reverse conduction must be blocked |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; meets J-STD-002 solderability and JESD 201 class 2 whisker resistance (HE3 suffix); color band denotes cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to protected circuit ground or low-side return path; must handle 500 A surge without bond wire failure |
| Cathode | Clamping voltage reference node | Connected to line being protected (e.g., +48 V rail); color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 48 V systems |
| 77.4 V clamping at 64.6 A | Limits voltage overshoot to ≤1.6× VWM, safeguarding 80 V-rated MOSFETs and controllers |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, ADAS power supplies, and infotainment DC inputs |
| P600 package thermal mass | Supports 8.0 W steady-state dissipation on infinite heatsink at TL = 75 °C, enabling passive thermal management |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures per safety-critical industrial and transportation standards |
Applications
| Automotive Power Input Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery feed and upstream fuse, absorbing >95 % of surge energy before reaching DC-DC converter ICs. Use Value: Prevents latch-up or gate oxide damage in buck controllers rated for ≤60 V input by limiting transient excursion to 77.4 V. | Use Scenario: Safeguarding IGBT gate drivers and bus capacitors from switching-induced voltage spikes in 3-phase inverters. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC link, triggered within <1 ns to clamp ringing exceeding 80 V. Use Value: Eliminates need for active crowbar circuits, reducing BOM count while maintaining 175 °C operational margin during thermal overload events. |
| Telecom Power Shelf Protection | Renewable Energy Charge Controller |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: Final-stage transient suppressor downstream of MOV-based primary protection, handling residual fast-rising edges. Use Value: Achieves <50 ps response time and <0.5 Ω dynamic impedance to suppress 100 ns rise-time transients without oscillation. | Use Scenario: Shielding solar charge controller MOSFETs from inductive kickback when disconnecting battery banks. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional 5KP48AHE3_A/C placed anode-to-ground to clamp positive spikes only. Use Value: Withstands 500 A 8.3 ms surge without degradation, enabling single-event protection across 20+ years of field deployment in off-grid systems. |
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 | 600 W PPPM, SMC package, 70 V VC @ 32.1 A - lower power, smaller footprint | Board space-constrained consumer electronics; insufficient for 48 V industrial surge compliance | Select when system-level surge energy ≤100 mJ and layout cannot accommodate P600 thermal mass |
| 1.5KE48A | 1500 W PPPM, DO-201 package, 77 V VC @ 19.3 A - legacy through-hole, no AEC-Q101 | Legacy industrial controls requiring through-hole assembly; lacks automotive qualification | Choose only for cost-sensitive, non-automotive retrofits where 5000 W rating is not mandated |
Compared with SMBJ48A-E3/52 and 1.5KE48A, the 5KP48AHE3_A/C delivers 3.3× higher peak power handling and AEC-Q101 validation - critical for protecting 48 V automotive subsystems against ISO 7637-2 Pulse 5a while maintaining thermal stability under repeated surge duty cycles.
Availability
5KP48AHE3_A/C is available at Aetrix Electronics and suitable for automotive power distribution units, industrial motor drives, telecom rectifier modules, and renewable energy charge controllers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 5KP48AHE3_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 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 demanding DC power environments - targeting automotive, industrial, and telecom applications where robustness, thermal resilience, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 5KP48AHE3_A/C and how is it measured?
The 5KP48AHE3_A/C has a maximum clamping voltage (VC) of 77.4 V, measured at its peak pulse current (IPPM) of 64.6 A using a standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed per JEDEC test conditions and reflects the actual voltage seen by downstream components during worst-case transient events - critical for ensuring compatibility with 80 V-rated power semiconductors in the protected circuit.
Is the 5KP48AHE3_A/C suitable for automotive applications?
Yes, the 5KP48AHE3_A/C is AEC-Q101 qualified, confirming its reliability for automotive use. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification. Its 48 V stand-off and 77.4 V clamping align with ISO 7637-2 Pulse 5a requirements for 12 V/48 V vehicle electrical systems, making it appropriate for engine control units, body electronics, and ADAS power supplies.
What does the "HE3" suffix indicate in 5KP48AHE3_A/C?
The "HE3" suffix in 5KP48AHE3_A/C indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 class 2 whisker resistance. The "H" denotes automotive qualification, "E3" confirms lead-free matte tin plating meeting J-STD-002 solderability and JESD 22-B102 wetting balance standards - distinguishing it from commercial-grade "E3" variants lacking automotive validation.
Can the 5KP48AHE3_A/C replace a crowbar circuit?
Yes, the 5KP48AHE3_A/C is explicitly designed to replace crowbar circuits in switching power supply outputs. Its 5000 W peak pulse power and ability to sustain high surge currents allow it to absorb transient energy while permitting upstream fuses or breakers to clear faults - enabling system reset without component replacement, unlike sacrificial crowbar SCRs or thyristors.
What is the thermal derating behavior of the 5KP48AHE3_A/C above 25 °C ambient?
The 5KP48AHE3_A/C follows a linear derating curve from 100 % power at 25 °C to 0 % at 175 °C junction temperature. At 75 °C lead temperature (TL), its steady-state power dissipation drops to 8.0 W on an infinite heatsink (per Fig. 5). Designers must apply thermal resistance calculations using the P600 package's θJA and board copper area to ensure TJ remains below 175 °C during sustained surge recovery periods.
5KP48AHE3_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):
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP48AHE3_A/C FAQ
1.How can I place an order for 5KP48AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP48AHE3_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 5KP48AHE3_A/C reliable?
The price and inventory of 5KP48AHE3_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 5KP48AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP48AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP48AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP48AHE3_A/C?
5KP48AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP48AHE3_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 5KP48AHE3_A/C?
For technical support, including 5KP48AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP48AHE3_A/C requirements.
6.How does Aetrix verify that 5KP48AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP48AHE3_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 5KP48AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP48AHE3_A/C?
All 5KP48AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP48AHE3_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 5KP48AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP48AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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