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Vishay General Semiconductor - Diodes Division 5KP70A-E3/51
- Part No.:
- 5KP70A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP70A-E3/51.pdf
- Description:
- TVS DIODE 70VWM 113VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,115
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Product details
Overview
5KP70A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 70 V standoff voltage (VWM), 77.8–86.0 V breakdown range (VBR at 5 mA), 113 V clamping voltage (VC) at 44.2 A peak pulse current, and 5000 W peak pulse power (10/1000 μs waveform). It is used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 5KP70A-E3/51 datasheet, 5KP70A-E3/51 pinout, 5KP70A-E3/51 application, or 5KP70A-E3/51 equivalent, this page delivers verified electrical parameters, P600 package details, AEC-Q101 qualification status, thermal derating behavior, and direct alternatives with documented clamping and tolerance differences.
Technical Context
The 5KP70A-E3/51 operates as a silicon avalanche diode with glass-passivated P600 package construction, optimized for fast response (<1 ns) to transient overvoltages induced by inductive switching or lightning surges. Its unidirectional polarity enables integration into DC-biased rails without reverse conduction concerns.
It sustains 5000 W peak pulse power under JEDEC-standard 10/1000 μs waveform with 0.01% duty cycle, and exhibits low incremental surge resistance for stable clamping performance across repetitive transients. Junction temperature rating extends to +175 °C, supporting operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 70 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR (Breakdown Voltage) | 77.8–86.0 V at 5 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 113 V at 44.2 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 5000 W - Energy-handling capacity under standardized surge waveform; supports robust protection in 48 V and higher systems. |
| IPPM (Peak Pulse Current) | 44.2 A - Maximum non-repetitive surge current the device can safely clamp; critical for fuse/breaker coordination. |
| TJmax | +175 °C - Maximum junction temperature; enables use in high-ambient environments like engine control units. |
| Polarity | Unidirectional - Cathode-marked device; suitable only for DC-biased applications with defined voltage polarity. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; RoHS-compliant (E3 suffix); AEC-Q101 qualified (HE3 variant); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential rail; completes clamping path during transient. |
| Cathode | High-side connection point | Connected to protected line (e.g., 70 V supply rail); marked by color band per datasheet. |
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 on 48 V bus systems without parallel staging. |
| AEC-Q101 qualification (HE3 variant) | Validated reliability for automotive power electronics including body control modules and ADAS power supplies. |
| 113 V clamping at 44.2 A | Limits voltage overshoot to within 61% of VBR max, reducing stress on downstream 150 V-rated MOSFETs and controllers. |
| 175 °C maximum junction temperature | Supports mounting on thermally constrained PCBs near heat sources without derating penalties beyond datasheet curves. |
| P600 package with JESD 22-B106 solderability | Enables standard wave-soldering at 275 °C for 10 s; compatible with high-volume automotive manufacturing flow. |
Applications
| Automotive Power Supply Protection | Industrial DC Bus Clamping |
|---|---|
|
Use Scenario: Protecting 70 V nominal battery-fed ECUs from load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rail to clamp surges before they reach DC/DC controller ICs. Use Value: Clamps to 113 V at 44.2 A, allowing system fuses to clear while preserving 150 V input-rated regulators and gate drivers. |
Use Scenario: Safeguarding PLC power inputs against inductive kickback from solenoid drivers and motor contactors. IC Role / Device Role / Timing Role: Standoff protector on 48–75 V DC distribution bus, absorbing repetitive 5000 W pulses without degradation. Use Value: Maintains <2 μA leakage at 70 V, minimizing standby power loss while delivering sub-1 ns response to 10/1000 μs transients. |
| Telecom Rectifier Output Protection | Sensor Signal Line Surge Suppression |
|
Use Scenario: Securing output of -48 V telecom rectifiers against lightning-induced surges entering via copper plant wiring. IC Role / Device Role / Timing Role: Unidirectional clamping device installed between rectifier output and downstream DC/DC converters. Use Value: Withstands 5000 W pulses with 0.01% duty cycle, enabling compliance with GR-1089-CORE Section 4.5.2.2 surge immunity requirements. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in harsh industrial settings from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface to shunt transients before reaching ADC front-end. Use Value: Delivers 113 V clamping with minimal parasitic capacitance (typ. <100 pF at 0 V), preserving signal integrity up to 1 MHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A-E3/52 | Lower peak power (600 W), smaller SMB package, same 70 V VWM, 113 V VC at 5.3 A. | Suitable for board-level signal line protection; insufficient for 5000 W load dump events. | Select when space-constrained layouts require SMT mounting and surge energy is ≤600 W. |
| 1.5KE70A | Same VWM/VC specs but lower PPPM (1500 W), axial P400 package, no AEC-Q101 qualification. | Acceptable for commercial-grade AC/DC adapter outputs; not validated for automotive under-hood use. | Choose for cost-sensitive consumer power supplies where AEC-Q101 and 5 kW capability are unnecessary. |
Compared with SMBJ70A-E3/52 and 1.5KE70A, the 5KP70A-E3/51 uniquely combines 5000 W surge handling, AEC-Q101 qualification, and P600 through-hole robustness-making it the only option among the three qualified for automotive load dump and industrial 48 V+ bus protection.
Availability
5KP70A-E3/51 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial DC bus clamping, telecom rectifier safeguarding, and sensor interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP70A-E3/51 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
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-coordinated overvoltage protection.
FAQ
What is the clamping voltage of the 5KP70A-E3/51 under a 10/1000 μs surge?
The 5KP70A-E3/51 has a maximum clamping voltage (VC) of 113 V when subjected to its rated peak pulse current of 44.2 A under the standardized 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The 5KP70A-E3/51 maintains this clamping performance across its full operating temperature range, ensuring consistent protection in demanding environments.
Is the 5KP70A-E3/51 suitable for automotive applications?
Yes-the 5KP70A-E3/51 is RoHS-compliant and manufactured in an AEC-Q101-qualified variant (5KP70AHE3/51). While the E3/51 suffix denotes commercial-grade qualification, the underlying die and P600 construction meet AEC-Q101 stress test requirements for temperature cycling, humidity, and surge endurance. For full automotive qualification, specify the HE3 suffix; the 5KP70A-E3/51 remains widely deployed in non-safety-critical automotive subsystems where proven field reliability is required.
What is the standoff voltage and why does it matter for the 5KP70A-E3/51?
The 5KP70A-E3/51 has a standoff voltage (VWM) of 70 V, meaning it remains in high-impedance state below this reverse voltage, drawing less than 2 μA leakage current. This parameter ensures the device does not interfere with normal 70 V system operation while remaining ready to avalanche precisely when voltage exceeds its breakdown threshold. Selecting a VWM closely matched to the protected rail minimizes unnecessary stress and maximizes margin before clamping activation.
How does the 5KP70A-E3/51 differ from the 1.5KE70A in practical design?
The 5KP70A-E3/51 delivers 5000 W peak pulse power versus 1500 W for the 1.5KE70A-making it suitable for ISO 7637-2 load dump protection where the latter would fail catastrophically. Both share identical VWM (70 V) and VC (113 V), but the 5KP70A-E3/51's larger P600 package enables higher thermal mass and JEDEC-compliant 275 °C solder dip tolerance. The 5KP70A-E3/51 also supports AEC-Q101 qualification (via HE3 variant), unlike the 1.5KE70A.
Can the 5KP70A-E3/51 be used in bidirectional configurations?
No-the 5KP70A-E3/51 is strictly unidirectional, with cathode marked by a color band. It conducts only during positive transients relative to its cathode terminal and blocks reverse voltage up to 70 V. For bidirectional surge protection (e.g., AC lines or differential data buses), a pair of 5KP70A-E3/51 devices in series-opposing configuration-or a dedicated bidirectional TVS such as 5KP70CA-is required. Using a single 5KP70A-E3/51 in reverse-biased mode risks permanent failure.
5KP70A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 70V
- Voltage - Breakdown (Min):
- 77.8V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 44.2A
- 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
5KP70A-E3/51 FAQ
1.How can I place an order for 5KP70A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP70A-E3/51 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 5KP70A-E3/51 reliable?
The price and inventory of 5KP70A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP70A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP70A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP70A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP70A-E3/51?
5KP70A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP70A-E3/51 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 5KP70A-E3/51?
For technical support, including 5KP70A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP70A-E3/51 requirements.
6.How does Aetrix verify that 5KP70A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP70A-E3/51 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 5KP70A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP70A-E3/51?
All 5KP70A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP70A-E3/51, 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 5KP70A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP70A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP70A-E3/51 Tags
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