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Vishay General Semiconductor - Diodes Division 5KP20HE3/54
- Part No.:
- 5KP20HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP20HE3/54.pdf
- Description:
- TVS DIODE 20VWM 35.8VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:9,997
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Product details
Overview
5KP20HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, rated for 5000 W peak pulse power (10/1000 μs), 20 V stand-off voltage (VWM), and 32.4 V clamping voltage (VC) at 154 A peak pulse current. It protects MOSFETs and ICs in automotive power supplies against inductive switching transients.
For engineers reviewing the 5KP20HE3/54 datasheet, 5KP20HE3/54 pinout, 5KP20HE3/54 application, or 5KP20HE3/54 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant matte tin leads, and P600 mechanical robustness per UL 94 V-0.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element in DC power rails, triggering when reverse voltage exceeds 22.2–24.5 V (VBR at 50 mA). Its low incremental surge resistance ensures stable clamping during 10/1000 μs transients up to 5000 W without thermal runaway.
Designed for automotive-grade reliability, it meets AEC-Q101 stress tests and supports soldering at 275 °C for 10 s. The P600 epoxy body provides mechanical ruggedness and flame resistance (UL 94 V-0), with cathode indicated by color band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V - Maximum continuous reverse operating voltage before breakdown; defines safe DC rail margin. |
| VBR (min/max) | 22.2 V / 24.5 V at 50 mA - Verified breakdown threshold ensuring predictable turn-on under surge. |
| VC @ IPPM | 32.4 V at 154 A - Clamped voltage during 10/1000 μs transient; limits downstream device stress. |
| PPPM | 5000 W - Peak pulse power handling capability; sustains high-energy surges without failure. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Polarity | Unidirectional - Blocks reverse voltage only; requires correct orientation in series with protected load. |
| Package | P600 - Axial-leaded, glass-passivated chip-in-epoxy package; UL 94 V-0 rated, 9.5 mm body length. |
Pinout & Package
P600 package: axial-leaded, molded epoxy body with cathode marked by color band; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 class 2 whisker test (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during forward surge events. |
| Cathode | Reverse breakdown terminal | Marked by color band; connected to higher-potential rail; initiates clamping when VRM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and UHAST. |
| 5000 W peak pulse power | Withstands high-energy transients (e.g., ISO 7637-2 Pulse 5a) without degradation or short-circuit failure. |
| Fast response time | < 1.0 ps intrinsic junction response; clamps within nanoseconds of overvoltage onset. |
| Low incremental surge resistance | Ensures minimal VC rise under increasing IPPM; maintains tight clamping across full surge range. |
| UL 94 V-0 flammability rating | Epoxy molding compound self-extinguishes; required for under-hood and safety-critical automotive modules. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rail to clamp surges above 24 V nominal. Use Value: Limits voltage to ≤32.4 V during 154 A transients, preventing damage to downstream DC/DC controllers and microcontrollers. |
Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in variable-frequency drives. IC Role / Device Role / Timing Role: Crowbar-style protection on DC link to absorb inductive kickback from motor coil switching. Use Value: Absorbs 5000 W pulses without latch-up, enabling fuse coordination and system reset after fault clearance. |
| Telecom Power Rectifier Output | Computer PSU Overvoltage Clamp |
Use Scenario: Secondary-side surge suppression on telecom -48 V rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at rectifier output to suppress fast-rising common-mode transients. Use Value: Clamps to 32.4 V within nanoseconds, preserving integrity of PoE controller ICs and Ethernet PHYs. |
Use Scenario: Overvoltage protection on +12 V rail of ATX power supplies during regulator failure. IC Role / Device Role / Timing Role: Fail-safe shunt element that activates if primary-side feedback loop fails and output rises beyond 12 V. Use Value: Triggers at 22.2 V (VBR min), clamping to 32.4 V to prevent catastrophic damage to motherboard VRMs and CPUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20AHE3/52 | Lower peak power (600 W), SMC package, same VWM/VBR tolerance but smaller footprint. | Suitable for space-constrained PCBs where 5000 W rating is not required. | Select when board area is critical and surge energy is ≤600 W; not drop-in for 5KP20HE3/54 due to power derating. |
| 1.5KE20A-E3/54 | Same P600 package and VWM, but lower PPPM (1500 W) and higher VC (34.4 V at 43.5 A). | Acceptable for lower-energy transients (e.g., ESD + minor inductive spikes) in non-automotive industrial use. | Choose for cost-sensitive designs with verified <1500 W threat profile; lacks AEC-Q101 qualification. |
Compared with SMBJ20AHE3/52 and 1.5KE20A-E3/54, the 5KP20HE3/54 delivers 3.3× higher pulse power and automotive-grade reliability-critical for load dump and ISO 7637-2 compliance-while maintaining identical mounting and polarity layout in P600 form factor.
Availability
5KP20HE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom rectifiers, and computer power supply designs requiring stable component supply and long-term lifecycle support.
Supply support for 5KP20HE3/54 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 5KP series was engineered specifically for high-energy transient suppression in automotive power systems and industrial DC buses, emphasizing AEC-Q101 compliance, UL 94 V-0 safety, and robust P600 packaging.
FAQ
What is the clamping voltage of the 5KP20HE3/54 under maximum surge conditions?
The 5KP20HE3/54 clamps to 32.4 V at its rated peak pulse current of 154 A (10/1000 μs waveform). This value is measured and guaranteed per JEDEC standards, ensuring consistent overvoltage limiting during real-world transients such as automotive load dump. The 5KP20HE3/54 maintains this clamping performance across its full operating temperature range.
Is the 5KP20HE3/54 qualified for automotive applications?
Yes, the 5KP20HE3/54 carries AEC-Q101 qualification, confirmed in Vishay's official documentation. This includes validation across high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. The HE3 suffix explicitly denotes AEC-Q101 compliance, making the 5KP20HE3/54 suitable for under-hood and safety-critical automotive modules.
What does the "HE3" suffix mean in 5KP20HE3/54?
The "HE3" suffix in 5KP20HE3/54 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 class 2 whisker resistance. It distinguishes this variant from commercial-grade "E3" versions (e.g., 5KP20A-E3/54), which lack automotive qualification. The 5KP20HE3/54 also features matte tin-plated leads meeting J-STD-002 solderability standards.
Can the 5KP20HE3/54 replace a 1.5KE20A in an existing design?
No-the 5KP20HE3/54 is not a direct replacement for 1.5KE20A due to significantly higher peak pulse power (5000 W vs. 1500 W), different thermal mass, and stricter automotive qualification. While both share P600 packaging and similar VWM, the 5KP20HE3/54 draws more surge current and requires updated thermal design. Use 5KP20HE3/54 only when 5000 W capability and AEC-Q101 are required.
What is the maximum junction temperature rating for the 5KP20HE3/54?
The 5KP20HE3/54 has a maximum junction temperature (TJ) of +175 °C, as specified in Vishay's datasheet Document Number 88308. This rating enables reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures. Derating curves in Figure 2 confirm usable power dissipation down to TJ = 175 °C.
5KP20HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 35.8V
- Current - Peak Pulse (10/1000µs):
- 140A
- 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
5KP20HE3/54 FAQ
1.How can I place an order for 5KP20HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP20HE3/54 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 5KP20HE3/54 reliable?
The price and inventory of 5KP20HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP20HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP20HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP20HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP20HE3/54?
5KP20HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP20HE3/54 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 5KP20HE3/54?
For technical support, including 5KP20HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP20HE3/54 requirements.
6.How does Aetrix verify that 5KP20HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP20HE3/54 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 5KP20HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP20HE3/54?
All 5KP20HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP20HE3/54, 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 5KP20HE3/54 part is unused and in its original packaging.
Return procedure for 5KP20HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP20HE3/54 Tags
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