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Vishay General Semiconductor - Diodes Division 5KP33HE3/54
- Part No.:
- 5KP33HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP33HE3/54.pdf
- Description:
- TVS DIODE 33VWM 59VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,036
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Product details
Overview
5KP33HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection of DC power rails and signal lines. It features 5000 W peak pulse power (10/1000 μs), 33 V stand-off voltage (VWM), 53.3 V maximum clamping voltage at 93.8 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 5KP33HE3/54 datasheet, 5KP33HE3/54 pinout, 5KP33HE3/54 application, or 5KP33HE3/54 equivalent, this device is selected for robust overvoltage protection in switching power supply outputs, automotive ECUs, industrial motor drives, and telecom interface circuits where fast response (<1 ns), low clamping ratio, and high IPPM endurance are critical.
Technical Context
The 5KP33HE3/54 operates as a silicon avalanche diode with glass-passivated P600 junction, optimized for non-repetitive transient suppression under 10/1000 μs waveform conditions. Its unidirectional polarity enables use on positive-rail DC systems, and its 175 °C max junction temperature supports operation in under-hood automotive environments.
Clamping performance is defined by VC = 53.3 V at IPPM = 93.8 A, yielding a clamping ratio (VC/VWM) of 1.61 - a key metric for effective downstream component protection. The device meets JESD22-B106 solderability and JESD201 Class 2 whisker resistance requirements, confirming suitability for automated assembly and long-term field reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous reverse operating voltage before conduction begins; sets protection threshold for 33 V nominal DC systems. |
| VBR min/max | 36.7 V / 40.6 V at 5 mA - Breakdown voltage range defining guaranteed avalanche onset; ensures consistent triggering across production lots. |
| VC @ IPPM | 53.3 V at 93.8 A - Clamped voltage during 5000 W transient; determines maximum stress imposed on protected ICs or MOSFETs. |
| PPPM | 5000 W - Peak pulse power handling per 10/1000 μs waveform; enables survival of severe lightning-induced surges per IEC 61000-4-5 Level 4. |
| IFSM | 600 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports crowbar-style fault clearing without device failure. |
| TJ max | 175 °C - Maximum junction temperature; allows direct mounting on PCBs with minimal heatsinking in high-ambient industrial or automotive applications. |
| Package | P600 - Axial-leaded, molded epoxy case (9.5 mm L × 6.2 mm D) with UL 94 V-0 flammability rating; compatible with wave and reflow soldering (275 °C, 10 s). |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry / surge return path | Connected to system ground or low-side reference; completes clamping loop during transient events. |
| Cathode (banded end) | Reverse-biased protection node | Connected to protected line (e.g., +33 V rail); avalanche conduction occurs when voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports Tier-1 ECU designs without additional qualification. |
| 5000 W peak pulse power | Withstands 10/1000 μs transients up to 5 kW - sufficient for IEC 61000-4-5 open-circuit voltage levels up to 4 kV with coupling network. |
| Low clamping ratio (1.61) | VC/VWM = 53.3/33 ensures minimal overvoltage overshoot during clamping, reducing risk of damage to downstream 33 V-rated components. |
| Fast response time (<1 ns) | Enables suppression before transient energy couples into sensitive circuitry; critical for protecting high-speed gate drivers and microcontroller I/O. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability; certified for use in safety-critical automotive and industrial assemblies. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 33 V battery-fed control modules (e.g., HVAC actuators, lighting controllers) against 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 exceeding 33 V within nanoseconds. Use Value: Prevents latch-up or permanent damage to 33 V-rated CAN transceivers and MCU power supplies during ISO 16750-2 load dump events. |
Use Scenario: Safeguarding 33 V auxiliary DC bus in variable-frequency drives powering pumps, fans, and conveyors. IC Role / Device Role / Timing Role: Surge suppression element across DC link capacitor terminals to absorb inductive kickback from contactor switching. Use Value: Eliminates need for external crowbar circuits while maintaining system uptime after transient events - fuse replacement suffices for recovery. |
| Telecom Interface Protection | Switching Power Supply Output |
Use Scenario: Shielding RS-485/RS-232 data lines powered from isolated 33 V supplies in base station remote units. IC Role / Device Role / Timing Role: Secondary-level TVS on power input to communication ICs, coordinated with primary GDT or polymer PTC. Use Value: Limits voltage seen by level translators and line drivers to ≤53.3 V during induced surges, preserving signal integrity and ESD immunity. |
Use Scenario: Overvoltage protection on regulated 33 V output of AC/DC adapters used in medical monitors and test equipment. IC Role / Device Role / Timing Role: Final-stage clamping device placed immediately after output filter capacitor to suppress regulator failure modes. Use Value: Enables safe shutdown of downstream loads during overvoltage faults without catastrophic short-circuit failure of the supply itself. |
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), SMC package, same VWM/VC but higher clamping ratio (1.73) | Suitable for space-constrained PCBs with lower surge exposure (IEC 61000-4-5 Level 2) | Select when board area is limited and peak surge energy does not exceed 600 W. |
| 5KP36HE3/54 | Higher VWM (36 V), VBR 40–44.2 V, VC 58.1 V at 86.1 A - identical P600 package and AEC-Q101 qualification | Better margin for 36 V nominal systems; slightly reduced IPPM due to higher VWM | Choose for 36 V battery architectures where tighter VWM tolerance is required. |
Compared with SMBJ33AHE3/52, the 5KP33HE3/54 delivers 8.3× higher surge power handling and superior thermal robustness in P600 package; versus 5KP36HE3/54, it offers lower clamping voltage and better compatibility with 33 V logic interfaces while retaining full automotive qualification.
Availability
5KP33HE3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive DC bus safeguarding, and telecom interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP33HE3/54 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, rectifiers, and protection devices for demanding industrial and automotive applications.
The 5KP series was engineered specifically for high-energy transient suppression in DC power systems - targeting switching power supply outputs, battery-fed ECUs, and motor drive inverters where crowbar replacement and fuse-coordinated fault clearing are essential.
FAQ
What is the clamping voltage of the 5KP33HE3/54 under maximum rated surge current?
The 5KP33HE3/54 clamps to 53.3 V at its rated peak pulse current of 93.8 A (10/1000 μs waveform). This value is measured and guaranteed per JEDEC standards and defines the maximum voltage imposed on protected circuitry during a full-power transient event. The 5KP33HE3/54 maintains this clamping performance across its qualified operating temperature range.
Is the 5KP33HE3/54 suitable for automotive applications?
Yes, the 5KP33HE3/54 carries AEC-Q101 qualification, confirming compliance with stress tests for temperature cycling, high-temperature operating life, and ESD robustness required in automotive electronics. Its P600 package, 175 °C max junction temperature, and HE3 suffix (JESD201 Class 2 whisker resistance) make the 5KP33HE3/54 appropriate for under-hood and body-control module deployments.
How does the 5KP33HE3/54 differ from the standard 5KP33A-E3/54 variant?
The 5KP33HE3/54 differs from 5KP33A-E3/54 in qualification level and plating: the "H" suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas the "E3" alone indicates commercial-grade RoHS compliance only. Both share identical electrical specs and P600 packaging, but the 5KP33HE3/54 is validated for automotive use cases where the 5KP33A-E3/54 is not.
What is the maximum continuous power dissipation for the 5KP33HE3/54?
The 5KP33HE3/54 has a steady-state power dissipation rating (PD) of 8.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. This value reflects thermal limits under continuous DC bias - not transient conditions - and must be derated linearly above 25 °C ambient per the published derating curve in the 5KP33HE3/54 datasheet.
Can the 5KP33HE3/54 be used in bidirectional protection configurations?
No, the 5KP33HE3/54 is unidirectional only, as confirmed in its Vishay datasheet features section. It conducts in forward bias and clamps in reverse bias above VWM. For bidirectional protection, two 5KP33HE3/54 devices must be connected in series opposition, or a dedicated bidirectional TVS such as SMAJ33A should be selected instead.
5KP33HE3/54 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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 59V
- Current - Peak Pulse (10/1000µs):
- 84.7A
- 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
5KP33HE3/54 FAQ
1.How can I place an order for 5KP33HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP33HE3/54 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 5KP33HE3/54 reliable?
The price and inventory of 5KP33HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP33HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP33HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP33HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP33HE3/54?
5KP33HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP33HE3/54 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 5KP33HE3/54?
For technical support, including 5KP33HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP33HE3/54 requirements.
6.How does Aetrix verify that 5KP33HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP33HE3/54 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 5KP33HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP33HE3/54?
All 5KP33HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP33HE3/54, 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 5KP33HE3/54 part is unused and in its original packaging.
Return procedure for 5KP33HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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