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Vishay General Semiconductor - Diodes Division 5KP33-E3/73
- Part No.:
- 5KP33-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP33-E3/73.pdf
- Description:
- TVS DIODE 33VWM 59VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,844
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Product details
Overview
5KP33-E3/73 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 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.
For engineers reviewing the 5KP33-E3/73 datasheet, 5KP33-E3/73 pinout, 5KP33-E3/73 application, or 5KP33-E3/73 equivalent, this device serves as a robust overvoltage clamp for automotive power supplies, industrial motor drives, and telecom interface circuits where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are required.
Technical Context
The 5KP33-E3/73 uses a glass-passivated P600 chip junction optimized for high-reliability unidirectional clamping. Its 175 °C maximum junction temperature and 8.0 W steady-state power dissipation support operation in thermally constrained environments without active cooling.
It delivers 93.8 A peak pulse current (IPPM) under 10/1000 μs transients while maintaining 53.3 V clamping voltage - achieving a clamping ratio (VC/VBR) of ~1.39 - and exhibits <2.0 μA reverse leakage at 33 V, ensuring minimal standby power loss in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 24 V systems. |
| VBR (min/max) | 36.7 V / 40.6 V at 5 mA - Confirmed breakdown range ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 53.3 V at 93.8 A - Clamping voltage limits downstream IC stress during 5 kW surges; enables robust protection of 3.3 V–24 V logic and power stages. |
| PPPM | 5000 W - Peak pulse power handling with 10/1000 μs waveform supports IEC 61000-4-5 Level 4 (4 kV) surge compliance. |
| IFSM | 500 A - Non-repetitive forward surge rating allows tolerance of accidental polarity reversals or inrush events. |
| TJ max | 175 °C - High junction temperature rating permits use in under-hood automotive and industrial enclosures without derating. |
| Polarity | Unidirectional - Cathode-banded configuration protects against positive-going transients only; requires correct orientation in series with load. |
Pinout & Package
5KP33-E3/73 is housed in the axial-leaded P600 package (JEDEC DO-201AD), featuring two tinned copper leads: anode and cathode. The cathode is marked by a color band on the epoxy body. Leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Current entry point during forward conduction | Connected to ground or low-side return path; conducts during reverse-transient clamping when cathode is at higher potential. |
| Cathode (banded end) | Current exit point during clamping | Connected to protected line (e.g., +24 V rail); initiates avalanche breakdown when voltage exceeds VBR, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for engine control units and ADAS power domains. |
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe lightning-induced surges and inductive switching spikes in industrial PLCs and EV chargers. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or relay bounce), improving protection margin for sensitive gate drivers and ADC inputs. |
| RoHS-compliant, halogen-free molding compound | UL 94 V-0 rated epoxy meets environmental compliance requirements for consumer, medical, and export-bound electronics. |
| Fast response time (<1 ns) | Clamps before transient energy couples into downstream circuitry - critical for safeguarding MOSFETs, microcontrollers, and CAN transceivers. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and ground, clamping transients above 33 V. Use Value: Withstands 5000 W pulses and operates up to 175 °C, eliminating need for external heatsinking in compact under-hood modules. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage sensors in variable-frequency drives subjected to inductive kickback. IC Role / Device Role / Timing Role: Clamp component on DC link capacitor bank, limiting voltage overshoot during rapid IGBT turn-off. Use Value: 53.3 V clamping at 93.8 A ensures bus voltage stays within 10 % of rated 300 V, preventing gate oxide rupture and sensor saturation. |
| Telecom Interface Surge Suppression | Consumer Power Adapter Output Stage |
Use Scenario: Protecting PoE-powered Ethernet PHYs and RS-485 transceivers from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on +48 V DC input line, coordinated with GDT or MOV secondary protection. Use Value: Low leakage (<2 μA at 33 V) avoids quiescent current drain on always-on interfaces; AEC-Q101 grade supports extended field life. |
Use Scenario: Secondary-side overvoltage protection in 12 V/24 V wall adapters used in smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output, absorbing residual switching noise and ESD from connected peripherals. Use Value: P600 package provides mechanical robustness for automated assembly; RoHS/halogen-free compliance satisfies global retail certification requirements. |
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 VWM (33 V), higher VC (53.3 V → 58.1 V at 10.3 A). | Targeted at space-constrained PCBs with lower surge exposure (IEC 61000-4-2 ESD only); not rated for AEC-Q101 or 5 kW transients. | Select when board area is limited and surge threat level is ≤ Level 2; avoid for automotive or industrial mains-connected systems. |
| 1.5KE33A | Same P600 package and 33 V VWM, but lower peak power (1500 W), higher VC (53.3 V → 53.3 V at 28.3 A), no AEC-Q101 qualification. | Cost-optimized alternative for non-automotive industrial controls where full 5 kW immunity is not mandated. | Choose for legacy designs requiring drop-in replacement with reduced surge margin; verify thermal design for repeated 1.5 kW events. |
Compared with SMBJ33A-E3/52 and 1.5KE33A, the 5KP33-E3/73 delivers 3.3× higher peak power and automotive-grade reliability - making it the only option among the three qualified for ISO 16750-2 load dump and IEC 61000-4-5 high-energy surge standards.
Availability
5KP33-E3/73 is available at Aetrix Electronics and suitable for automotive power management, industrial motor control, telecom infrastructure, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for 5KP33-E3/73 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 high-reliability, high-power, and automotive-qualified components.
The 5KP series was engineered specifically for high-energy transient suppression in demanding DC power systems - targeting applications where crowbar circuits were previously required, such as switching power supply outputs and battery-fed electronic control units.
FAQ
What is the clamping voltage of the 5KP33-E3/73 under maximum rated surge current?
The 5KP33-E3/73 has a maximum clamping voltage (VC) 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 test conditions and ensures predictable overvoltage limiting for downstream components. The 5KP33-E3/73 maintains this clamping performance across its specified operating temperature range.
Is the 5KP33-E3/73 suitable for automotive applications?
Yes, the 5KP33-E3/73 is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and powertrain applications. Its 5000 W surge capability and robust P600 package meet ISO 7637-2 load dump and ISO 16750-2 transient requirements. The 5KP33-E3/73 is explicitly listed in Vishay's AEC-Q101 qualified product list.
What does the "E3/73" suffix indicate in 5KP33-E3/73?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "73" specifies the packaging format - 73 mm tape-and-reel with 800 units per reel. This differs from /54 (13″ reel) and confirms compatibility with standard SMT pick-and-place equipment using 73 mm carrier tape.
How does the 5KP33-E3/73 compare to bidirectional TVS diodes?
The 5KP33-E3/73 is unidirectional and protects only against positive transients on the cathode side - it must be oriented with cathode toward the protected line. Bidirectional variants (e.g., 5KP33CA) protect both polarities but exhibit higher capacitance and slightly reduced surge capability. The 5KP33-E3/73 offers lower leakage and tighter VBR tolerance for DC-coupled applications where polarity is fixed.
Can the 5KP33-E3/73 replace older 1.5KE series TVS diodes?
The 5KP33-E3/73 is physically compatible with 1.5KE33A (same P600 package and pinout) but offers significantly higher surge capability: 5000 W vs. 1500 W peak power and 93.8 A vs. 28.3 A IPPM. However, due to differences in thermal mass and clamping dynamics, direct substitution requires validation of PCB layout, heatsinking, and system-level surge testing - especially in high-duty-cycle applications.
5KP33-E3/73 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP33-E3/73 FAQ
1.How can I place an order for 5KP33-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP33-E3/73 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 5KP33-E3/73 reliable?
The price and inventory of 5KP33-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP33-E3/73 is usually 5 days.
3.What payment methods are accepted for 5KP33-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP33-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP33-E3/73?
5KP33-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP33-E3/73 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 5KP33-E3/73?
For technical support, including 5KP33-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP33-E3/73 requirements.
6.How does Aetrix verify that 5KP33-E3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP33-E3/73 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 5KP33-E3/73 meets industry standards.
7.What is the process for return or replacement of 5KP33-E3/73?
All 5KP33-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP33-E3/73, 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 5KP33-E3/73 part is unused and in its original packaging.
Return procedure for 5KP33-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP33-E3/73 Tags
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