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Vishay General Semiconductor - Diodes Division 5KP8.0A-E3/51
- Part No.:
- 5KP8.0A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP8.0A-E3/51.pdf
- Description:
- TVS DIODE 8VWM 13.6VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,792
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Product details
Overview
5KP8.0A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 5.0 mA, 5000 W peak pulse power (10/1000 μs), 368 A peak pulse current (IPPM), and clamps to ≤13.6 V at rated surge. It is used in automotive power supply outputs and industrial sensor interfaces where high-energy transients must be safely shunted without device failure.
For engineers reviewing the 5KP8.0A-E3/51 datasheet, 5KP8.0A-E3/51 pinout, 5KP8.0A-E3/51 application, or 5KP8.0A-E3/51 equivalent, key selection criteria include its P600 package thermal performance, unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, and verified clamping behavior under repetitive 0.01% duty cycle surges - all critical for robust front-end protection in harsh environments.
Technical Context
The 5KP8.0A-E3/51 operates as a silicon avalanche diode with glass-passivated P600 chip junction, enabling fast response (<1 ns) to ESD and lightning-induced transients. Its unidirectional structure blocks reverse voltage up to 8.0 V and conducts only when reverse voltage exceeds 8.89 V (min VBR), limiting clamped output to 13.6 V at 368 A.
It is rated for 5000 W peak pulse power per 10/1000 μs waveform, derated linearly above 25 °C ambient, and supports 600 A non-repetitive forward surge (8.3 ms half-sine). 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 | 8.0 V - Maximum continuous reverse operating voltage before conduction begins; sets DC rail compatibility threshold. |
| VBR (min/max) | 8.89 V / 9.83 V at 5.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| IPPM | 368 A - Peak surge current it safely diverts during 10/1000 μs transient; defines minimum PCB trace/solder joint robustness. |
| VC | ≤13.6 V - Clamped voltage at IPPM; determines maximum stress imposed on downstream ICs during surge event. |
| PPPM | 5000 W - Peak pulse power handling capability; enables protection against high-energy load dump or inductive switching events. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive or enclosed industrial enclosures. |
| Polarity | Unidirectional - Cathode-banded device; requires correct orientation in series with protected line to block normal reverse bias. |
Pinout & Package
5KP8.0A-E3/51 uses the P600 axial-leaded package: molded epoxy body (UL 94 V-0), matte tin-plated leads, cathode indicated by color band. Leads are 0.340–0.360 inch (8.6–9.1 mm) long, body diameter 0.340–0.360 inch (8.6–9.1 mm), overall length 0.375 inch (9.5 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Cathode terminal | Connected to protected circuit's higher-potential node (e.g., +12 V rail); color band identifies this end for correct PCB placement. |
| Cathode (non-banded end) | Anode terminal | Typically tied to ground or low-impedance return path; completes conduction path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock - suitable for engine control and ADAS power rails. |
| 5000 W peak pulse rating (10/1000 μs) | Withstands high-energy transients from alternator load dump or relay coil collapse without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during clamping - improves system-level immunity margin. |
| 175 °C max junction temperature | Enables use in high-ambient-temperature locations such as near power converters or under vehicle hoods without thermal derating penalties. |
| RoHS-compliant, JESD 201 Class 1A whisker tested | Ensures long-term solder joint integrity in automated assembly and field operation - eliminates whisker-induced short-circuit risk. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Installed across +12 V battery input of an automotive body control module to suppress load dump transients up to 120 V. IC Role / Device Role / Timing Role: Primary crowbar-style overvoltage clamp; activates within nanoseconds to limit rail voltage to ≤13.6 V during surge. Use Value: Prevents latch-up or permanent damage to 5 V LDO regulators and CAN transceivers downstream while allowing fuse coordination. | Use Scenario: Placed on 24 V analog input line of a PLC analog I/O module exposed to inductive field wiring. IC Role / Device Role / Timing Role: Unidirectional TVS shunt element protecting op-amp front-end and ADC reference inputs from switching noise and cable discharge. Use Value: Maintains signal integrity by clamping transients below 13.6 V, avoiding saturation or reset of precision measurement circuitry. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Mounted on 48 V DC feed line of a remote radio head in outdoor telecom infrastructure subject to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage transient suppressor upstream of DC/DC converter; absorbs bulk energy before secondary protection stages engage. Use Value: Reduces required size/cost of downstream MOVs or polymer-based protectors by handling >90% of surge energy in single device. | Use Scenario: Integrated into the main AC/DC power supply output of a smart washing machine to protect motor driver ICs from pump coil back-EMF. IC Role / Device Role / Timing Role: High-power unidirectional clamp on 310 V DC bus; activated during rapid deceleration of BLDC motor. Use Value: Enables reliable operation without crowbar SCR circuits - simplifies design and eliminates need for manual reset after overvoltage event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower peak power (600 W), smaller SMB package, same VWM/VBR range, lower IPPM (65 A). | Not suitable for 5000 W load dump; limited to board-level ESD or low-energy inductive spikes. | Select SMBJ8.0A only when space-constrained and surge energy is <10% of 5KP8.0A-E3/51 capability. |
| 1.5KE8.0A | Same P600 package, 1500 W peak power, lower IPPM (125 A), identical VWM/VBR, higher VC (12.0 V). | Lacks AEC-Q101 qualification; not validated for automotive under-hood thermal cycling or vibration. | Choose 1.5KE8.0A for cost-sensitive industrial applications where 5000 W rating is unnecessary and automotive qualification is not required. |
Compared with SMBJ8.0A and 1.5KE8.0A, the 5KP8.0A-E3/51 delivers 3.3× higher peak power than 1.5KE8.0A and over 8× that of SMBJ8.0A, while maintaining AEC-Q101 compliance and tighter clamping - making it uniquely suited for automotive load dump and industrial high-energy surge scenarios.
Availability
5KP8.0A-E3/51 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply and long-lifecycle support.
Supply support for 5KP8.0A-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, TVS devices, and optoelectronics 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 - delivering robust 5000 W surge capability in the standardized P600 package with AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of the 5KP8.0A-E3/51 during a 368 A transient?
The 5KP8.0A-E3/51 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 368 A (10/1000 μs waveform). This value is guaranteed per Vishay's datasheet and reflects worst-case device behavior under full-rated surge conditions - critical for verifying downstream IC overvoltage margins.
Is the 5KP8.0A-E3/51 suitable for automotive applications?
Yes, the 5KP8.0A-E3/51 is AEC-Q101 qualified and explicitly rated for automotive use. Its 175 °C maximum junction temperature, robust P600 package, and validation across temperature cycling, humidity, and mechanical shock make it appropriate for engine control units, body electronics, and ADAS power supplies where load dump and jump-start transients occur.
What does the "E3/51" suffix indicate in 5KP8.0A-E3/51?
The "E3" denotes RoHS-compliant, commercial-grade termination per JESD 201 Class 1A whisker testing; "/51" specifies the packaging option - in this case, 500 pieces per 13-inch paper tape and reel. This differs from /54 (800-piece reel) and confirms traceable, production-ready packaging format.
How does the 5KP8.0A-E3/51 differ from bidirectional TVS diodes?
The 5KP8.0A-E3/51 is unidirectional and functions only as a reverse-biased clamp - it blocks up to 8.0 V in reverse and conducts above ~8.89 V. Bidirectional variants (e.g., 5KP8.0CA) protect both polarities but exhibit higher leakage and reduced DC blocking capability; 5KP8.0A-E3/51 is preferred for DC power rail protection where polarity is fixed and low leakage is essential.
Can the 5KP8.0A-E3/51 replace a 1.5KE8.0A in an existing design?
Electrically, the 5KP8.0A-E3/51 can replace 1.5KE8.0A in the same P600 footprint, but its 5000 W rating versus 1500 W means significantly higher surge energy handling - potentially eliminating need for parallel devices. However, verify thermal dissipation and PCB layout for increased peak current; no PCB changes are required, but system-level surge testing is recommended post-replacement.
5KP8.0A-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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 368A
- 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
5KP8.0A-E3/51 FAQ
1.How can I place an order for 5KP8.0A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP8.0A-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 5KP8.0A-E3/51 reliable?
The price and inventory of 5KP8.0A-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 5KP8.0A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP8.0A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP8.0A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP8.0A-E3/51?
5KP8.0A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP8.0A-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 5KP8.0A-E3/51?
For technical support, including 5KP8.0A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP8.0A-E3/51 requirements.
6.How does Aetrix verify that 5KP8.0A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP8.0A-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 5KP8.0A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP8.0A-E3/51?
All 5KP8.0A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP8.0A-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 5KP8.0A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP8.0A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP8.0A-E3/51 Tags
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