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Vishay General Semiconductor - Diodes Division 5KP20HE3/73
- Part No.:
- 5KP20HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP20HE3/73.pdf
- Description:
- TVS DIODE 20VWM 35.8VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
5KP20HE3/73 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 maximum clamping voltage (VC) at 154 A peak pulse current - designed to protect MOSFETs and ICs against inductive switching transients in automotive power supplies.
For engineers reviewing the 5KP20HE3/73 datasheet, 5KP20HE3/73 pinout, 5KP20HE3/73 application, or 5KP20HE3/73 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant matte tin leads, and P600 package compatibility with high-energy surge environments requiring stable clamping under repetitive 0.01% duty cycle conditions.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response overvoltage clamping. It features a glass-passivated P600 chip junction, exhibits low incremental surge resistance, and delivers consistent clamping performance across -55 °C to +175 °C operating range.
Its unidirectional configuration enables integration into DC power rails where reverse conduction must be blocked. The 5KP20HE3/73 is specifically qualified to AEC-Q101, confirming suitability for automotive-grade reliability testing including temperature cycling, humidity bias, and mechanical shock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below circuit rail voltage. |
| VBR min/max | 22.2 V / 24.5 V at 5.0 mA - Breakdown voltage tolerance band ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 32.4 V at 154 A - Clamped voltage during 10/1000 μs surge; limits downstream component stress during transient events. |
| PPPM | 5000 W - Peak pulse power handling capability; supports high-energy surges without failure when properly heatsinked. |
| TJ max | +175 °C - Maximum junction temperature rating enables operation in under-hood automotive environments. |
| Polarity | Unidirectional - Cathode marked by color band; blocks reverse current until breakdown, suitable for DC supply line protection. |
| Package | P600 - Axial-leaded, molded epoxy case meeting UL 94 V-0; provides mechanical robustness and thermal path for surge dissipation. |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode indicated by colored band; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected DC rail; conducts only during forward surge or fault conditions. |
| Cathode | Clamping terminal | Marked by color band; connected to higher-potential rail; avalanches into conduction when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HAST, and mechanical shock per JEDEC standards. |
| 5000 W peak pulse power | Enables single-device protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge waveforms in 12 V/24 V systems. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during clamping, reducing stress on downstream MOSFET gate oxides and IC ESD structures. |
| UL 94 V-0 molding compound | Ensures flame-retardant housing integrity during sustained overvoltage faults or adjacent component fire propagation. |
| JESD 201 Class 2 whisker resistance | HE3 suffix confirms enhanced mitigation against tin whisker growth, critical for long-life automotive electronics reliability. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rail to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Withstands 5000 W pulses and maintains clamping at ≤32.4 V, preventing latch-up or burnout in sensitive control ICs. | Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in variable-frequency drives during inductive kickback. IC Role / Device Role / Timing Role: Mounted directly across DC link to absorb energy from motor coil collapse, limiting voltage rise to safe levels. Use Value: Fast response time and low incremental resistance ensure clamping occurs within nanoseconds, avoiding IGBT overvoltage failure. |
| Telecom Power Rectifier Output | Consumer Appliance SMPS Input |
Use Scenario: Shielding telecom rectifier modules from lightning-induced surges on AC input and DC output lines. IC Role / Device Role / Timing Role: Used on secondary-side DC outputs to suppress transients generated by relay switching or cable coupling. Use Value: AEC-Q101 qualification and 175 °C rating support deployment in outdoor cabinets exposed to wide ambient temperature swings. | Use Scenario: Protecting primary-side controllers and optocouplers in white-goods SMPS against mains-borne surges. IC Role / Device Role / Timing Role: Placed across bulk capacitor to limit overvoltage during brownout recovery or transformer saturation events. Use Value: 5.0 mA test current and tight VBR tolerance (22.2–24.5 V) ensure precise clamping alignment with 20 V rail design margins. |
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 peak power (600 W), SMC package, same VWM (20 V), higher VC (32.4 V → 34.4 V) | Not AEC-Q101 qualified; suited for consumer-grade, non-automotive designs with space-constrained layouts. | Select SMBJ20A only if board space is limited and automotive qualification is not required. |
| 1.5KE20A | Same VWM (20 V) and VC (32.4 V), but lower PPPM (1500 W), DO-201 package, no AEC-Q101 qualification | Limited to lower-energy transients; lacks automotive reliability validation and thermal robustness for under-hood use. | Choose 1.5KE20A for cost-sensitive industrial applications where 5000 W surge immunity is not mandated. |
Compared with SMBJ20A and 1.5KE20A, the 5KP20HE3/73 delivers triple the pulse power handling and certified automotive reliability - making it the sole option among the three qualified for under-hood deployment in ISO 16750-2 compliant systems.
Availability
5KP20HE3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, telecom power systems, and consumer appliance SMPS requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 5KP20HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The 5KP series was engineered for high-energy transient suppression in automotive and industrial power systems - delivering robust clamping performance in harsh thermal and electrical environments where legacy TVS families fall short.
FAQ
What is the clamping voltage of the 5KP20HE3/73 under a 10/1000 μs surge?
The 5KP20HE3/73 clamps to a maximum of 32.4 V when subjected to its rated peak pulse current of 154 A using the standard 10/1000 μs waveform. This value is measured at the device terminals and reflects worst-case behavior under JEDEC-defined test conditions, ensuring predictable overvoltage limiting for downstream components in the 5KP20HE3/73 protected circuit.
Is the 5KP20HE3/73 suitable for automotive applications?
Yes, the 5KP20HE3/73 is explicitly AEC-Q101 qualified, with test evidence covering temperature cycling, high-temperature operating life, and mechanical shock. Its P600 package, 175 °C junction rating, and HE3 suffix (JESD 201 Class 2 whisker resistance) confirm suitability for under-hood automotive power electronics where the 5KP20HE3/73 is deployed for load-dump and ISO 7637-2 compliance.
What does the 'HE3' suffix indicate in 5KP20HE3/73?
The 'HE3' suffix in 5KP20HE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - distinguishing it from commercial-grade 'E3' variants. This suffix confirms enhanced reliability for automotive and long-life industrial applications where tin whisker formation could compromise the 5KP20HE3/73's long-term performance.
How does the 5KP20HE3/73 differ from the 5KP20A variant?
The 5KP20HE3/73 differs from 5KP20A primarily in qualification and plating: 5KP20HE3/73 is AEC-Q101 qualified and uses JESD 201 Class 2 whisker-resistant matte tin leads, whereas 5KP20A is commercial grade without automotive validation. Both share identical electrical specs (VWM, VC, PPPM), but only the 5KP20HE3/73 is approved for automotive use per the official Vishay documentation.
What is the maximum operating temperature for the 5KP20HE3/73?
The 5KP20HE3/73 has a maximum junction temperature (TJ) of +175 °C and an operating storage range of -55 °C to +175 °C. This rating allows the 5KP20HE3/73 to function reliably in under-hood automotive environments and high-ambient industrial settings where thermal management is constrained, provided PCB layout and heatsinking meet Vishay's derating guidelines.
5KP20HE3/73 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):
- 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
5KP20HE3/73 FAQ
1.How can I place an order for 5KP20HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP20HE3/73 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 5KP20HE3/73 reliable?
The price and inventory of 5KP20HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP20HE3/73 is usually 5 days.
3.What payment methods are accepted for 5KP20HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP20HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP20HE3/73?
5KP20HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP20HE3/73 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 5KP20HE3/73?
For technical support, including 5KP20HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP20HE3/73 requirements.
6.How does Aetrix verify that 5KP20HE3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP20HE3/73 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 5KP20HE3/73 meets industry standards.
7.What is the process for return or replacement of 5KP20HE3/73?
All 5KP20HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP20HE3/73, 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 5KP20HE3/73 part is unused and in its original packaging.
Return procedure for 5KP20HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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