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Vishay General Semiconductor - Diodes Division 5KP48-E3/73
- Part No.:
- 5KP48-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP48-E3/73.pdf
- Description:
- TVS DIODE 48VWM 85.5VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:6,027
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Product details
Overview
5KP48-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 voltage (VBR) at 5 mA, 77.4 V maximum clamping voltage (VC) at 64.6 A peak pulse current (IPPM), and 5000 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect MOSFETs and ICs in automotive power supplies.
For engineers reviewing the 5KP48-E3/73 datasheet, 5KP48-E3/73 pinout, 5KP48-E3/73 application, or 5KP48-E3/73 equivalent, this page delivers verified electrical parameters, clamping behavior under surge conditions, thermal derating curves, RoHS-compliant packaging details, and validated alternatives for overvoltage protection design in industrial and automotive systems.
Technical Context
The 5KP48-E3/73 employs a glass-passivated P600 junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling precise clamping during high-energy transients induced by inductive load switching or lightning surges. Its unidirectional polarity supports DC-biased protection paths without reverse conduction leakage concerns.
Rated for 175 °C maximum junction temperature and 8.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C, it sustains repeated surge events only at ≤0.01 % duty cycle (per JEDEC test conditions). The device meets JESD 22-B106 solderability (275 °C, 10 s) and JESD 201 Class 1A whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 53.3 V / 58.9 V at 5 mA - Breakdown threshold range; ensures reliable turn-on within specified tolerance band. |
| VC @ IPPM | 77.4 V at 64.6 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum transient stress. |
| PPPM | 5000 W - Peak pulse power handling (10/1000 μs); enables robust protection against IEC 61000-4-5 Level 4 surges. |
| IFSM | 600 A - Non-repetitive forward surge current (8.3 ms half-sine); supports crowbar-style fault clearing without destruction. |
| TJ max. | +175 °C - Maximum junction temperature; allows operation in under-hood automotive environments with proper thermal design. |
| Polarity | Unidirectional - Cathode-marked device; suitable for DC supply line protection where reverse conduction is not required. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; cathode indicated by color band. Dimensions: 9.5 mm × 9.1 mm × 1.32 mm (L × W × H), lead spacing 9.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential node; completes clamping path during overvoltage event. |
| Cathode | High-side connection point | Connected to protected line (e.g., +48 V rail); color band identifies this terminal for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients per IEC 61000-4-5, eliminating need for parallel TVS arrays. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and body electronics applications requiring extended temperature and lifetime validation. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during surge, reducing stress on downstream MOSFET gate oxides and IC input structures. |
| P600 glass-passivated junction | Delivers stable VBR over time and temperature, with <0.11 %/°C tempco, critical for precision clamp thresholds. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and EU Directive 2011/65/EU; suitable for commercial and industrial assembly. |
Applications
| Automotive Power Supply Protection | Industrial DC Motor Drive Control |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across main DC input rail upstream of DC/DC converters. Use Value: Limits transient voltage to ≤77.4 V, preventing damage to 80 V-rated MOSFETs and PMICs while surviving 600 A surge peaks. |
Use Scenario: Safeguarding gate drivers and current sense amplifiers in 48 V BLDC motor inverters. IC Role / Device Role / Timing Role: Fast-response surge shunt on low-side current sense path and bootstrap supply lines. Use Value: Sub-1 ns response clamps inductive kickback from PWM switching, preserving signal integrity and avoiding false overcurrent trips. |
| Telecom Rectifier Output Protection | Renewable Energy Charge Controller Input |
Use Scenario: Shielding PoE-powered equipment inputs from AC-line coupled surges entering via telecom rectifiers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on +48 V output bus of telecom-grade AC/DC front-end modules. Use Value: Withstands repetitive 5 kW pulses at 0.01 % duty cycle, maintaining uptime during lightning-induced grid disturbances. |
Use Scenario: Securing solar charge controller inputs exposed to lightning-induced surges on PV string wiring. IC Role / Device Role / Timing Role: Standoff-rated TVS on MPPT input stage, coordinated with upstream MOVs for staged energy absorption. Use Value: 48 V VWM aligns with nominal PV array voltage; 77.4 V VC ensures battery management ICs remain within absolute maximum ratings. |
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 PPPM (600 W), smaller SMB package, same VWM (48 V), higher VC (77.4 V), lower IPPM (12.3 A). | Not suitable for IEC 61000-4-5 Level 4; limited to board-level ESD or low-energy transients. | Select when space-constrained layouts require SMT mounting and surge energy is ≤600 W. |
| 1.5KE48A | Same VWM (48 V), lower PPPM (1500 W), DO-201 package, higher VC (77 V), lower IPPM (22.5 A), no AEC-Q101 qualification. | Lacks automotive qualification and thermal robustness for under-hood deployment. | Choose for cost-sensitive industrial controls where AEC-Q101 is not mandated and 5 kW surge immunity is unnecessary. |
Compared with SMBJ48A-E3/52 and 1.5KE48A, the 5KP48-E3/73 delivers 3.3× and 3.3× higher peak pulse power respectively, maintains identical clamping voltage despite higher energy, and is the only AEC-Q101-qualified option-making it the sole choice for automotive 48 V systems requiring full IEC 61000-4-5 compliance.
Availability
5KP48-E3/73 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 across multi-year production cycles.
Supply support for 5KP48-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, 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-targeting automotive load-dump protection, industrial power supply crowbar replacement, and telecom rectifier output safeguarding.
FAQ
What is the clamping voltage of the 5KP48-E3/73 under a 10/1000 μs surge?
The 5KP48-E3/73 exhibits a maximum clamping voltage (VC) of 77.4 V when subjected to its rated peak pulse current of 64.6 A under the standard 10/1000 μs waveform. This value is guaranteed per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The 5KP48-E3/73 achieves this clamping performance while sustaining 5000 W peak pulse power, making it suitable for demanding IEC 61000-4-5 applications.
Is the 5KP48-E3/73 suitable for automotive applications?
Yes, the 5KP48-E3/73 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and 48 V mild-hybrid systems. Its 175 °C maximum junction temperature, robust P600 package, and validated performance under load-dump and ISO 7637-2 transient conditions make it appropriate for under-hood deployment. The 5KP48-E3/73 is explicitly listed in Vishay's AEC-Q101 qualified product matrix with HE3 suffix variants.
What does the "E3/73" suffix indicate in 5KP48-E3/73?
The "E3" suffix denotes RoHS-compliant construction meeting JESD 201 Class 1A whisker resistance, while "/73" specifies the packaging configuration: 73 indicates 800-piece tape-and-reel delivery in 13-inch diameter reels. This differs from /54 (same quantity, alternate reel size) and confirms the part is supplied in industry-standard automated assembly format compatible with SMT pick-and-place equipment.
How does the 5KP48-E3/73 compare to bidirectional TVS diodes?
The 5KP48-E3/73 is unidirectional, meaning it conducts only during positive overvoltage events relative to its cathode-an optimal fit for DC power rail protection where reverse polarity is not expected. Unlike bidirectional variants, it offers lower leakage current below VWM and avoids ambiguity in clamping polarity. For AC-coupled or bipolar signal lines, a bidirectional device would be required; the 5KP48-E3/73 is purpose-built for asymmetric DC protection scenarios.
Can the 5KP48-E3/73 replace a 1.5KE48A in an existing design?
No direct drop-in replacement is assured: although both share 48 V VWM and unidirectional polarity, the 5KP48-E3/73 has larger P600 package dimensions (9.5 mm × 9.1 mm vs. DO-201's 5.3 mm × 2.7 mm), different thermal characteristics, and significantly higher surge capability (5000 W vs. 1500 W). PCB layout, heatsinking, and mechanical clearance must be re-evaluated. The 5KP48-E3/73 is not pin-compatible with 1.5KE48A due to distinct lead geometry and body outline.
5KP48-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP48-E3/73 FAQ
1.How can I place an order for 5KP48-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP48-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 5KP48-E3/73 reliable?
The price and inventory of 5KP48-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 5KP48-E3/73 is usually 5 days.
3.What payment methods are accepted for 5KP48-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP48-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP48-E3/73?
5KP48-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP48-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 5KP48-E3/73?
For technical support, including 5KP48-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP48-E3/73 requirements.
6.How does Aetrix verify that 5KP48-E3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP48-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 5KP48-E3/73 meets industry standards.
7.What is the process for return or replacement of 5KP48-E3/73?
All 5KP48-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP48-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 5KP48-E3/73 part is unused and in its original packaging.
Return procedure for 5KP48-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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