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Vishay General Semiconductor - Diodes Division 5KP48HE3/73
- Part No.:
- 5KP48HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP48HE3/73.pdf
- Description:
- TVS DIODE 48VWM 85.5VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,644
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Product details
Overview
5KP48HE3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, rated for 48 V stand-off voltage (VWM), 53.3–58.9 V breakdown (VBR), and 5000 W peak pulse power (10/1000 µs). It clamps transients to ≤77.4 V at 64.6 A, with AEC-Q101 qualification for automotive-grade reliability in power supply output protection.
For engineers reviewing the 5KP48HE3/73 datasheet, 5KP48HE3/73 pinout, 5KP48HE3/73 application, or 5KP48HE3/73 equivalent, this device is selected for high-energy surge suppression where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.32), and robust 175 °C junction temperature capability are required in DC power rails and automotive electronics.
Technical Context
This TVS diode operates as a voltage-clamping overvoltage protector using an avalanche junction. Its P600 glass-passivated chip delivers 5000 W peak pulse power handling with 0.01% duty cycle, and exhibits low incremental surge resistance for stable clamping under repetitive surges.
Designed for unidirectional operation only, it features a cathode band marking, matte tin-plated leads compliant with J-STD-002, and meets UL 94 V-0 flammability. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 48.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC operating margin. |
| VBR (Breakdown Voltage) | 53.3–58.9 V at 5.0 mA - Avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | ≤77.4 V at 64.6 A (10/1000 µs) - Peak voltage seen by protected circuit; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 5000 W - Energy-handling capacity for standardized 10/1000 µs surge; enables protection against IEC 61000-4-5 Level 4 events. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Polarity | Unidirectional - Blocks reverse current until breakdown; used on positive-rail protection with cathode to rail. |
| IFSM | 600 A (8.3 ms half-sine) - Surge current withstand without failure; allows coordination with fuses/circuit breakers. |
Pinout & Package
Package: P600 molded epoxy case with glass-passivated junction; RoHS-compliant, UL 94 V-0 rated; 9.5 mm body length, axial lead configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during transient. |
| Cathode | High-side connection point | Marked with color band; connected to protected line (e.g., +48 V rail); conducts avalanche current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| 5000 W peak pulse power | Handles high-energy lightning-induced surges (IEC 61000-4-5) without degradation across 1000+ pulses. |
| Fast response time | <1 ns turn-on delay ensures clamping occurs before sensitive ICs experience overvoltage damage. |
| Low clamping ratio (VC/VBR) | ≈1.32 - Minimizes overvoltage overshoot relative to breakdown, reducing stress on downstream MOSFETs and regulators. |
| Junction temperature range | −55 °C to +175 °C - Enables deployment in extreme ambient conditions such as industrial motor drives and automotive under-hood systems. |
Applications
| Automotive Power Rail Protection | Industrial Switching Power Supply Output |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator surge events per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +48 V rail and chassis ground to clamp transients within 1 ns. Use Value: Withstands 600 A surge (8.3 ms) and clamps to ≤77.4 V, preventing latch-up or destruction of 60 V-rated DC-DC controllers. | Use Scenario: Safeguarding output stage of 48 V telecom rectifiers against switching transients and back-EMF from inductive loads. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 µs surges up to 5000 W without derating beyond 25 °C ambient. Use Value: Enables crowbar-circuit replacement with no fuse coordination delay, allowing system reset after transient clearance. |
| Telecom DC Distribution Panel | Motor Drive DC Bus Protection |
Use Scenario: Securing 48 V DC distribution in central office equipment exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main feed line, mounted directly at panel entry point with thermal relief. Use Value: UL 94 V-0 housing and 175 °C TJ rating ensure flame resistance and sustained performance during multi-pulse surge events. | Use Scenario: Protecting gate drivers and bus capacitors in 48 V BLDC motor inverters from commutation spikes. IC Role / Device Role / Timing Role: Unidirectional TVS across DC bus (+48 V to GND), triggered by rapid dV/dt from IGBT switching. Use Value: Low incremental surge resistance maintains stable clamping voltage even at 64.6 A peak, preserving MOSFET SOA margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48AHE3/52 | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range, AEC-Q101 qualified. | Not suitable for IEC 61000-4-5 Level 4; limited to board-level ESD and lower-energy transients. | Select when space-constrained PCB layout requires surface-mount and surge energy is ≤600 W. |
| 1.5KE48A | Same VWM/VBR/VC specs but lower PPPM (1500 W), DO-201 package, non-AEC-Q101. | Lacks automotive qualification and thermal robustness; not recommended for under-hood use. | Choose for cost-sensitive industrial power supplies where AEC-Q101 and 5000 W rating are unnecessary. |
Compared with SMBJ48AHE3/52 and 1.5KE48A, the 5KP48HE3/73 provides 3.3× higher surge energy handling and automotive qualification-critical for protecting 48 V systems exposed to load dump and ISO 7637-2 transients without derating or parallel devices.
Availability
5KP48HE3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial switching power supply output stages, and telecom DC distribution panels requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 5KP48HE3/73 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in DC power systems-including automotive load-dump protection and telecom rectifier outputs-where 5000 W pulse capability and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 5KP48HE3/73 under maximum rated surge current?
The 5KP48HE3/73 has a maximum clamping voltage (VC) of 77.4 V when subjected to its peak pulse current (IPPM) of 64.6 A with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees the protected circuit sees no more than 77.4 V during worst-case transient events, preserving downstream 80 V-rated components.
Is the 5KP48HE3/73 suitable for automotive applications?
Yes, the 5KP48HE3/73 is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units and 48 V battery systems. Its −55 °C to +175 °C operating range, load-dump surge capability, and JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements.
What does the "HE3" suffix indicate in 5KP48HE3/73?
The "HE3" suffix denotes that the 5KP48HE3/73 is RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 2 whisker resistance. It distinguishes this automotive-grade variant from commercial "E3" versions lacking AEC-Q101 validation.
How does the 5KP48HE3/73 compare to standard Zener diodes in surge protection?
Unlike standard Zener diodes, the 5KP48HE3/73 is optimized for high-power transient suppression: it handles 5000 W (vs. typically <5 W for Zeners), responds in <1 ns (vs. µs-scale), and maintains stable clamping under repetitive surges. Its P600 package and glass-passivated junction ensure reliability far exceeding general-purpose Zener capabilities.
Can the 5KP48HE3/73 be used in bidirectional configurations?
No, the 5KP48HE3/73 is unidirectional only, with polarity marked by a cathode band. For bidirectional surge protection, two 5KP48HE3/73 devices must be connected in series opposing configuration-or a dedicated bidirectional TVS such as 5KP48CA should be selected instead.
5KP48HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 85.5V
- Current - Peak Pulse (10/1000µs):
- 58.5A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP48HE3/73 FAQ
1.How can I place an order for 5KP48HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP48HE3/73 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 5KP48HE3/73 reliable?
The price and inventory of 5KP48HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP48HE3/73 is usually 5 days.
3.What payment methods are accepted for 5KP48HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP48HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP48HE3/73?
5KP48HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP48HE3/73 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 5KP48HE3/73?
For technical support, including 5KP48HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP48HE3/73 requirements.
6.How does Aetrix verify that 5KP48HE3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP48HE3/73 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 5KP48HE3/73 meets industry standards.
7.What is the process for return or replacement of 5KP48HE3/73?
All 5KP48HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP48HE3/73, 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 5KP48HE3/73 part is unused and in its original packaging.
Return procedure for 5KP48HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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