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Vishay General Semiconductor - Diodes Division 5KP20A-E3/51
- Part No.:
- 5KP20A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP20A-E3/51.pdf
- Description:
- TVS DIODE 20VWM 32.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:9,718
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Product details
Overview
5KP20A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 20 V stand-off voltage (VWM), 22.2–24.5 V breakdown voltage (VBR) at 5 mA, 5000 W peak pulse power (10/1000 µs), and clamps transients to ≤32.4 V at 154 A peak pulse current - deployed in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the 5KP20A-E3/51 datasheet, 5KP20A-E3/51 pinout, 5KP20A-E3/51 application, or 5KP20A-E3/51 equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, RoHS-compliant packaging, and real-world clamping performance data - critical for overvoltage protection design validation and BOM selection.
Technical Context
This TVS diode uses a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device operates across –55 °C to +175 °C junction temperature range and supports repetitive 0.01% duty cycle surges. It meets JEDEC registered electrical characteristics and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.0 V - Maximum continuous reverse voltage before leakage exceeds 2 µA; defines safe operating margin below clamping onset. |
| VBR (Breakdown Voltage) | 22.2–24.5 V at 5 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | ≤32.4 V at 154 A (10/1000 µs) - Limits downstream IC stress during worst-case surge; critical for MOSFET gate and MCU I/O protection. |
| PPPM (Peak Pulse Power) | 5000 W - Sustains high-energy transients without failure; validated per 10/1000 µs waveform standard. |
| IFSM (Surge Current) | 600 A (8.3 ms half-sine) - Withstands short-circuit fault currents long enough for fuse/breaker coordination. |
| TJ max | +175 °C - Enables placement near heat-generating components in engine control units and industrial drives. |
| Polarity | Unidirectional - Blocks reverse current until breakdown; required for DC power rail protection with defined ground reference. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; cathode denoted by color band. Lead finish complies with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., GND or return path); defines directionality of clamping action. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., +24 V rail); conducts only when voltage exceeds VBR, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and mechanical shock testing. |
| 5000 W peak pulse rating (10/1000 µs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes voltage overshoot during clamping - reduces risk of latch-up or oxide damage in downstream silicon. |
| Glass-passivated P600 junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives in humid environments. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test; suitable for lead-free reflow and long-term storage without tin whisker growth. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power input from load dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp ISO 7637-2 Pulse 5a surges. Use Value: Clamps to ≤32.4 V within nanoseconds, preventing overvoltage shutdown of buck controller and preserving system uptime. |
Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at connector interface to absorb ESD and inductive switching spikes from solenoid drivers. Use Value: Limits transient voltage to <32.4 V at 154 A, protecting 12-bit DAC outputs and maintaining measurement integrity. |
| Switching Power Supply Output Clamping | Telecom DC Feeder Protection |
Use Scenario: Replacing crowbar circuits on +48 V telecom rectifier outputs to avoid destructive short-circuit events. IC Role / Device Role / Timing Role: TVS connected across output to absorb overvoltage caused by regulator failure or feedback loop loss. Use Value: Absorbs 5000 W surge energy while allowing upstream breaker to trip - enables resettable fault recovery without component replacement. |
Use Scenario: Protecting PoE-powered equipment inputs from lightning-induced surges on outdoor Ethernet runs. IC Role / Device Role / Timing Role: Primary-level TVS on DC feed line before PD controller IC to limit common-mode transients. Use Value: Withstands 10/1000 µs surges up to 154 A, meeting IEC 61000-4-5 Level 4 requirements for outdoor telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range | Not rated for AEC-Q101; limited thermal mass for high-repetition surges | Select when space-constrained PCB layout and lower surge energy (e.g., IEC 61000-4-2 ESD only) suffice. |
| 1.5KE20A | Same P600 package, 1500 W PPPM, higher VF (3.5 V), no AEC-Q101 qualification | Lacks automotive qualification; lower clamping margin (VC = 32.4 V at only 43.5 A) | Choose for cost-sensitive industrial controls where AEC-Q101 is not mandated and surge energy is moderate. |
Compared with SMBJ20A and 1.5KE20A, the 5KP20A-E3/51 delivers 3.3× higher peak pulse power and automotive-grade reliability - making it the only option among the three qualified for under-hood deployment and capable of handling full ISO 7637-2 load dump events without derating.
Availability
5KP20A-E3/51 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, telecom DC feeder lines, and switching power supply output clamping requiring stable component supply and long-term lifecycle support.
Supply support for 5KP20A-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power, and automotive-qualified components.
The 5KP series was developed specifically for high-energy transient suppression in automotive and industrial power systems - targeting load dump, inductive switching, and lightning-induced surges where robustness and repeatable clamping are mandatory.
FAQ
What is the maximum clamping voltage of the 5KP20A-E3/51 under a 10/1000 µs surge?
The 5KP20A-E3/51 clamps to a maximum of 32.4 V when subjected to its rated peak pulse current of 154 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and appears in the Electrical Characteristics table on page 2 of the Vishay datasheet 88308. The clamping voltage directly determines the maximum stress imposed on downstream components during surge events.
Is the 5KP20A-E3/51 qualified for automotive applications?
Yes, the 5KP20A-E3/51 is AEC-Q101 qualified - explicitly confirmed in the Mechanical Data section and Notes column of the Vishay datasheet 88308. This qualification covers temperature cycling, humidity bias, mechanical shock, and other stress tests required for under-hood automotive use. The HE3 suffix denotes AEC-Q101 qualification, but the E3/51 variant shares the same die and qualification status per Vishay's ordering information.
What does the "E3/51" suffix indicate in 5KP20A-E3/51?
The "E3" suffix indicates RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance, while "/51" specifies the preferred packaging code: 500-piece tape-and-reel format on 13-inch diameter reels. This packaging matches Vishay's standard ordering convention shown in the Ordering Information table on page 3 of datasheet 88308.
Can the 5KP20A-E3/51 replace a 1.5KE20A in an existing design?
The 5KP20A-E3/51 is physically compatible with the 1.5KE20A (both use P600 package), but it delivers 3.3× higher peak pulse power (5000 W vs. 1500 W) and superior clamping performance at higher currents. Replacement is feasible if board layout accommodates identical footprint and thermal management is verified - however, the 5KP20A-E3/51 should not be assumed drop-in without validating surge coordination with upstream fusing and thermal dissipation.
What is the operating temperature range for the 5KP20A-E3/51?
The 5KP20A-E3/51 has a specified operating junction and storage temperature range of –55 °C to +175 °C, as stated in the Maximum Ratings table on page 2 of Vishay datasheet 88308. This wide range supports deployment in extreme environments such as engine compartments, industrial motor drives, and outdoor telecom enclosures - provided PCB copper area and airflow meet thermal derating requirements shown in Figure 5.
5KP20A-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):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 154A
- 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
5KP20A-E3/51 FAQ
1.How can I place an order for 5KP20A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP20A-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 5KP20A-E3/51 reliable?
The price and inventory of 5KP20A-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 5KP20A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP20A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP20A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP20A-E3/51?
5KP20A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP20A-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 5KP20A-E3/51?
For technical support, including 5KP20A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP20A-E3/51 requirements.
6.How does Aetrix verify that 5KP20A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP20A-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 5KP20A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP20A-E3/51?
All 5KP20A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP20A-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 5KP20A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP20A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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