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Vishay General Semiconductor - Diodes Division 5KP33A-E3/54
- Part No.:
- 5KP33A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP33A-E3/54.pdf
- Description:
- TVS DIODE 33VWM 53.3VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:903
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Product details
Overview
5KP33A-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on power rails and signal lines. It features 33 V stand-off voltage (VWM), 36.7–40.6 V breakdown voltage (VBR) at 5 mA, 53.3 V clamping voltage (VC) at 93.8 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 5KP33A-E3/54 datasheet, 5KP33A-E3/54 pinout, 5KP33A-E3/54 application, or 5KP33A-E3/54 equivalent, key selection criteria include verified unidirectional clamping performance, AEC-Q101 qualification status, P600 mechanical robustness, thermal derating behavior above 25 °C, and compatibility with 8.3 ms half-sine surge waveforms per JEDEC standards.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during transients, leveraging a glass-passivated P600 junction to achieve low incremental surge resistance and sub-nanosecond response time. Its unidirectional polarity enables integration into DC-biased power rails without reverse leakage concerns at 33 V operating voltage.
The device sustains 5000 W peak pulse power under 10/1000 μs waveform with 0.01 % duty cycle, and supports 500 A non-repetitive forward surge current (IFSM) at 8.3 ms. Thermal performance is defined by a 175 °C maximum junction temperature and derated power dissipation above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 33.0 V - Maximum continuous reverse voltage before clamping activation; defines safe operating margin for 24 V or 28 V DC systems. |
| VBR (Breakdown Voltage) | 36.7–40.6 V at 5 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage with controlled tolerance. |
| VC (Clamping Voltage) | 53.3 V at 93.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines maximum stress on downstream components. |
| PPPM (Peak Pulse Power) | 5000 W - Energy-handling capacity for standardized lightning/surge events; validates suitability for IEC 61000-4-5 Level 4 compliance designs. |
| IFSM (Surge Current) | 500 A at 8.3 ms - Withstands single half-sine overcurrent events (e.g., inductive kickback), enabling fuse/breaker coordination without device failure. |
| TJ max. | 175 °C - Maximum junction temperature; supports operation in under-hood automotive environments and high-ambient industrial enclosures. |
| Polarity | Unidirectional - Cathode-marked device; requires correct orientation in series with positive rail; not suitable for AC or bidirectional signal line protection. |
Pinout & Package
Package: P600 molded epoxy case with glass-passivated junction, UL 94 V-0 rated, matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band. Lead length: 0.340–0.360 inch (8.6–9.1 mm). Body diameter: ≥1.0 inch (25.4 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or surge clamping | Connected to lower-potential side of protected circuit (e.g., ground or return path); must be routed with low-inductance trace. |
| Cathode | Current exit terminal; marked with color band | Connected to higher-potential node (e.g., +24 V rail); clamping occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance - required for engine control, body electronics, and ADAS power stages. |
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe lightning-induced surges per IEC 61000-4-5, eliminating need for multi-stage protection networks in space-constrained designs. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive gate drivers and microcontrollers. |
| P600 mechanical robustness | Supports high-power dissipation with 8.0 W steady-state rating on infinite heatsink at TL = 75 °C; withstands 275 °C solder dip for 10 s per JESD 22-B106. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance; certified for commercial and automotive applications requiring lead-free assembly and long-term interconnect reliability. |
Applications
| Automotive Power Rail Protection | Industrial Switching Power Supply Output |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed across main input rail upstream of DC/DC converter. Use Value: Clamps transient to ≤53.3 V within nanoseconds, preventing damage to 36 V-rated regulators and CAN transceivers while maintaining AEC-Q101 compliance. |
Use Scenario: Safeguarding output stage of 48 V telecom rectifier against backfeed surges and hot-swap events. IC Role / Device Role / Timing Role: Crowbar-style overvoltage limiter parallel to output capacitor bank. Use Value: Absorbs 5000 W surge energy without degradation, allowing upstream breaker to trip while preserving downstream FPGA and PMIC integrity. |
| MOSFET Gate Driver Protection | Sensor Signal Line Surge Suppression |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during fast switching in motor drives. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp between gate and source, referenced to driver IC ground. Use Value: Limits gate-source voltage to ≤53.3 V during 100 ns transients, preventing oxide breakdown while adding <10 pF parasitic capacitance. |
Use Scenario: Hardening analog outputs of pressure/temperature sensors in factory automation against ESD and cable discharge events. IC Role / Device Role / Timing Role: Series-connected TVS on 4–20 mA loop output, cathode tied to supply rail. Use Value: Maintains 33 V stand-off for normal operation while clamping 8 kV contact ESD to <60 V, preserving 16-bit DAC accuracy and loop stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A-E3/52 | Lower peak power (600 W), smaller SMB package, same 33 V VWM and unidirectional polarity. | Suitable for board-level signal line protection but insufficient for 5000 W load dump events. | Select when space constraints dominate and surge energy is ≤600 W (e.g., USB, RS-485, low-power sensor interfaces). |
| 5KP36A-E3/54 | Higher VWM (36 V), VBR 40.0–44.2 V, VC 58.1 V at 86.1 A - identical P600 package and 5000 W rating. | Better margin for 36 V nominal systems; slightly higher clamping voltage reduces protection headroom for 33 V-tolerant ICs. | Choose when protecting circuits with ≥36 V absolute maximum ratings or where tighter VWM/VBR matching to system rail is required. |
Compared with SMBJ33A-E3/52 and 5KP36A-E3/54, the 5KP33A-E3/54 uniquely balances 33 V system compatibility, 5000 W surge handling, and AEC-Q101 qualification - making it the only direct-fit solution for automotive 24 V power rail protection requiring full ISO 7637-2 compliance without derating or parallel devices.
Availability
5KP33A-E3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial switching power supply output safeguarding, and high-reliability sensor interface hardening requiring stable component supply across extended production lifecycles.
Supply support for 5KP33A-E3/54 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 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 demanding DC power systems - targeting replacement of bulkier crowbar circuits while meeting AEC-Q101 and IEC 61000-4-5 requirements.
FAQ
What is the clamping voltage of the 5KP33A-E3/54 under standard test conditions?
The 5KP33A-E3/54 has a maximum clamping voltage (VC) of 53.3 V when subjected to its rated peak pulse current of 93.8 A using a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings. The 5KP33A-E3/54 maintains this clamping performance across its specified operating temperature range.
Is the 5KP33A-E3/54 suitable for automotive applications?
Yes, the 5KP33A-E3/54 is AEC-Q101 qualified and explicitly designed for automotive use cases including engine control units, body electronics, and ADAS power stages. Its P600 package, 175 °C junction rating, and validated performance under load dump and ISO 7637-2 Pulse 5a conditions make it appropriate for under-hood environments. The 5KP33A-E3/54 meets automotive reliability requirements without derating in standard mounting configurations.
What does the "E3/54" suffix indicate in 5KP33A-E3/54?
The "E3" suffix denotes RoHS-compliant construction with JESD 201 Class 1A whisker-resistant matte tin plating, while "/54" specifies the preferred packaging code: 13-inch diameter paper tape and reel containing 800 units. This format ensures compatibility with automated SMT placement equipment and supports traceable lot-controlled procurement - essential for high-volume automotive and industrial manufacturing where the 5KP33A-E3/54 is deployed.
How does the 5KP33A-E3/54 differ from bidirectional TVS diodes?
The 5KP33A-E3/54 is unidirectional, meaning it conducts only during reverse-biased overvoltage events and blocks forward current up to its rated IFSM. Unlike bidirectional variants, it cannot suppress symmetrical AC transients or negative-going surges on grounded lines. This design allows tighter VWM control and lower leakage at 33 V, making the 5KP33A-E3/54 optimal for DC power rail protection where polarity is fixed and forward conduction must be avoided.
Can the 5KP33A-E3/54 replace older 5KP33A parts without layout changes?
Yes, the 5KP33A-E3/54 uses the identical P600 package outline, pin configuration, and thermal footprint as legacy 5KP33A variants. Its mechanical dimensions, lead spacing, and soldering specifications (including 275 °C/10 s tolerance) match industry-standard P600 implementation guidelines. Therefore, the 5KP33A-E3/54 can be drop-in substituted in existing designs without PCB modifications, provided RoHS compliance and AEC-Q101 qualification are acceptable for the target application.
5KP33A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 93.8A
- 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
5KP33A-E3/54 FAQ
1.How can I place an order for 5KP33A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP33A-E3/54 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 5KP33A-E3/54 reliable?
The price and inventory of 5KP33A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP33A-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP33A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP33A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP33A-E3/54?
5KP33A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP33A-E3/54 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 5KP33A-E3/54?
For technical support, including 5KP33A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP33A-E3/54 requirements.
6.How does Aetrix verify that 5KP33A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP33A-E3/54 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 5KP33A-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP33A-E3/54?
All 5KP33A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP33A-E3/54, 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 5KP33A-E3/54 part is unused and in its original packaging.
Return procedure for 5KP33A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP33A-E3/54 Tags
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