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Vishay General Semiconductor - Diodes Division 5KP33AHE3/54
- Part No.:
- 5KP33AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP33AHE3/54.pdf
- Description:
- TVS DIODE 33VWM 53.3VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:1,823
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Product details
Overview
5KP33AHE3/54 from Vishay General Semiconductor is a unidirectional 5000 W transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection of DC power rails and signal lines. It features a 33 V stand-off voltage (VWM), 36.7–40.6 V breakdown voltage (VBR) at 5 mA, clamps to ≤53.3 V at 93.8 A peak pulse current (10/1000 μs), and operates from –55 °C to +175 °C - used in automotive power supply input stages and industrial motor drive DC bus protection.
For engineers reviewing the 5KP33AHE3/54 datasheet, 5KP33AHE3/54 pinout, 5KP33AHE3/54 application, or 5KP33AHE3/54 equivalent, key selection criteria include clamping voltage under 53.3 V at 93.8 A, AEC-Q101 qualification, unidirectional polarity, P600 package thermal performance, and 5000 W peak pulse power rating with 10/1000 μs waveform compliance.
Technical Context
The 5KP33AHE3/54 employs a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional structure provides robust reverse-biased clamping during transients while blocking normal forward conduction until VF ≈ 3.5 V at 100 A.
It is rated for 500 A non-repetitive forward surge current (8.3 ms half-sine), dissipates 8.0 W on infinite heatsink at TL = 75 °C, and supports soldering up to 275 °C for 10 s per JESD 22-B106 - enabling reliable integration into high-reliability automotive and industrial PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 33 V systems. |
| VBR min/max | 36.7 V / 40.6 V at 5 mA - verified breakdown range ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | ≤53.3 V at 93.8 A (10/1000 μs) - clamping voltage directly limits downstream IC stress during lightning or inductive switch-off events. |
| PPPM | 5000 W - peak pulse power handling capacity enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| TJ max | +175 °C - extended junction temperature rating supports under-hood automotive and high-ambient industrial environments. |
| Polarity | Unidirectional - blocks reverse voltage only; requires correct cathode-band orientation during placement. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, temperature cycling, and HAST testing. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; 0.375" (9.5 mm) body length; UL 94 V-0 rated; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential node; conducts during overvoltage clamp when cathode is at higher potential. |
| Cathode | Clamping reference / high-side connection | Connected to protected line (e.g., 33 V rail); reverse-biased operation initiates clamping when voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients without cascaded TVS or crowbar circuits. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where field failure is unacceptable. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during clamping, reducing stress on downstream MOSFETs and controllers. |
| P600 package thermal mass | Supports 8.0 W steady-state dissipation with proper heatsinking - critical for repeated surge events in industrial SMPS. |
| 10/1000 μs waveform compliance | Meets IEC 61000-4-5 surge immunity test requirements for AC/DC power inputs and DC bus lines. |
Applications
| Automotive Power Supply Input | Industrial Motor Drive DC Bus |
|---|---|
|
Use Scenario: Protecting 33 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 33 V rail and chassis ground to clamp surges above 33 V. Use Value: Clamps to ≤53.3 V within nanoseconds, preventing damage to 40 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in 33 V-rated servo drives. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing inductive kickback energy from motor coil switching. Use Value: Withstands 93.8 A peak pulse current without degradation, preserving system uptime during frequent start-stop cycles. |
| Telecom DC Power Feeds | Renewable Energy Charge Controllers |
|
Use Scenario: Surge suppression on 33 V PoE-powered remote radios exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary protection device on DC input before DC-DC isolation stage. Use Value: AEC-Q101 qualification ensures long-term reliability in outdoor telecom enclosures with wide thermal cycling. |
Use Scenario: Overvoltage protection in solar charge controllers interfacing 33 V battery banks with MPPT circuitry. IC Role / Device Role / Timing Role: Standoff-clamp TVS limiting transient spikes from PV array disconnect events. Use Value: 175 °C max junction temperature accommodates sealed battery compartment ambient temperatures up to 85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33AHE3/52 | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range, non-AEC-Q101 | Targeted at space-constrained consumer or computing boards; insufficient for automotive load dump | Select 5KP33AHE3/54 when >1 kW surge energy or AEC-Q101 compliance is required. |
| 1.5KE33A | Same VWM/VBR, 1500 W PPPM, DO-201 package, no AEC-Q101 qualification | Limited to lower-energy industrial control panels; lacks thermal mass for repetitive surges | Choose 5KP33AHE3/54 for applications demanding ≥5000 W pulse handling and automotive qualification. |
Compared with SMBJ33AHE3/52 and 1.5KE33A, the 5KP33AHE3/54 delivers 3.3× and 3.3× higher peak pulse power respectively, maintains AEC-Q101 validation, and leverages P600 thermal mass for sustained surge duty - making it the only option qualified for under-hood automotive 33 V rail protection.
Availability
5KP33AHE3/54 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial motor drive DC buses, telecom DC feeds, and renewable energy charge controllers requiring stable component supply and full traceability.
Supply support for 5KP33AHE3/54 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices for high-reliability power and signal protection.
The 5KP series was developed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 compliance, P600 thermal robustness, and precise clamping performance.
FAQ
What is the clamping voltage of the 5KP33AHE3/54 under maximum surge conditions?
The 5KP33AHE3/54 clamps to a maximum of 53.3 V when subjected to its rated peak pulse current of 93.8 A with a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for downstream 40 V-rated components. The clamping voltage remains stable across temperature and lifetime when operated within datasheet limits.
Is the 5KP33AHE3/54 suitable for automotive applications?
Yes, the 5KP33AHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS power supplies. Its P600 package, 175 °C max junction temperature, and validated reliability testing (HTOL, temperature cycling) meet stringent automotive qualification requirements - unlike non-qualified alternatives.
What does the "HE3" suffix indicate in 5KP33AHE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The "/54" indicates packaging in 13-inch paper tape and reel with 800 units per reel. This distinguishes it from commercial-grade "E3" variants and confirms suitability for high-reliability automotive and industrial deployments.
How does the 5KP33AHE3/54 compare to standard 1N53xx Zener diodes in surge protection?
Unlike 1N53xx Zeners - which are low-power voltage regulators rated for <5 W - the 5KP33AHE3/54 is engineered as a transient suppressor with 5000 W peak pulse capability, low dynamic impedance, and sub-nanosecond response. It handles surge energy orders of magnitude higher and maintains stable clamping without thermal runaway, making it unsuitable for regulation but ideal for protection.
Can the 5KP33AHE3/54 be used in bidirectional configurations?
No, the 5KP33AHE3/54 is unidirectional only, with polarity marked by a cathode band. For bidirectional protection, two 5KP33AHE3/54 devices must be connected in series opposition, or a dedicated bidirectional part like 5KP33CAHE3/54 should be selected - the latter has symmetric breakdown in both directions and is not interchangeable with the "A" (unidirectional) variant.
5KP33AHE3/54 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP33AHE3/54 FAQ
1.How can I place an order for 5KP33AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP33AHE3/54 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 5KP33AHE3/54 reliable?
The price and inventory of 5KP33AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP33AHE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP33AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP33AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP33AHE3/54?
5KP33AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP33AHE3/54 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 5KP33AHE3/54?
For technical support, including 5KP33AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP33AHE3/54 requirements.
6.How does Aetrix verify that 5KP33AHE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP33AHE3/54 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 5KP33AHE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP33AHE3/54?
All 5KP33AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP33AHE3/54, 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 5KP33AHE3/54 part is unused and in its original packaging.
Return procedure for 5KP33AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP33AHE3/54 Tags
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