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Vishay General Semiconductor - Diodes Division P6KE33A-E3/54
- Part No.:
- P6KE33A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33A-E3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,259
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Product details
Overview
P6KE33A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for primary overvoltage protection of sensitive electronics. It features a 31.4 V minimum breakdown voltage (VBR), 28.2 V maximum stand-off voltage (VWM), 45.7 V clamping voltage (VC) at 13.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and I/O lines in industrial motor drives and automotive ECUs.
For engineers reviewing the P6KE33A-E3/54 datasheet, P6KE33A-E3/54 pinout, P6KE33A-E3/54 application, or P6KE33A-E3/54 equivalent, key selection criteria include verified clamping performance under 13.1 A surge, unidirectional polarity with cathode band marking, DO-15 mechanical compatibility, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient overvoltages before downstream components are damaged. Its unidirectional configuration enables integration into DC power paths where reverse conduction must be blocked.
The P6KE33A-E3/54 is rated for 175 °C maximum junction temperature and exhibits 0.098 %/°C temperature coefficient of VBR, ensuring stable breakdown behavior across wide thermal ranges. It supports repetitive surge duty cycles up to 0.01 % and complies with UL 497B recognition (QVGQ2) for protector classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28.2 V maximum - ensures no conduction during normal 24 V DC system operation |
| VBR (min/max) | 31.4 V / 34.7 V at 1.0 mA - defines reliable avalanche initiation threshold under low-current stress |
| VC @ IPPM | 45.7 V at 13.1 A - limits worst-case voltage seen by protected ICs during 10/1000 μs transients |
| PPPM | 600 W - sustains high-energy surges such as ISO 7637-2 Pulse 1/2a without degradation |
| IFSM | 100 A (8.3 ms half-sine) - withstands inrush or fault currents without bond-wire fusing |
| TJ max. | 175 °C - enables placement near heat-generating components in engine control modules |
| RθJL | 20 °C/W - allows direct PCB trace heatsinking to maintain safe junction temperature under 5 W steady-state dissipation |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in unidirectional protection configuration |
| Cathode (banded end) | Avalanche conduction terminal | Connected to protected line (e.g., 24 V rail); clamps to ~45.7 V when transient exceeds 31.4 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable long-term leakage performance (<1.0 μA at 28.2 V) and resistance to humidity-induced degradation |
| 600 W peak pulse power (10/1000 μs) | Provides robust immunity against load-dump and inductive switching transients per ISO 16750-2 |
| AEC-Q101 qualified (E3 suffix variant) | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensors |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage stress on downstream MOSFETs and microcontrollers during surge events |
| Solder dip rated 275 °C for 10 s | Supports wave soldering process without parametric shift or delamination risk |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units from load-dump transients up to 35 V sustained for 400 ms. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point before DC/DC converter input. Use Value: Limits voltage excursion to ≤45.7 V during 13.1 A surge, preventing damage to LDO regulators and MCU power pins. |
Use Scenario: Shielding digital input channels in programmable logic controllers from field-wiring induced ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS mounted on PCB front-end, referenced to common ground plane. Use Value: Responds in <1 ns to clamp 8 kV contact ESD (IEC 61000-4-2) to safe levels before signal conditioning circuitry. |
| Consumer Appliance Motor Drive | Telecom Power Interface |
Use Scenario: Safeguarding H-bridge gate drivers in smart home HVAC systems exposed to relay coil flyback spikes. IC Role / Device Role / Timing Role: Placed across motor power terminals to absorb bidirectional energy during commutation. Use Value: Absorbs 600 W peak pulses without degradation, maintaining gate drive integrity during repeated switching cycles. |
Use Scenario: Front-end protection on 48 V PoE-powered telecom equipment subject to lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: Used in conjunction with common-mode chokes and secondary TVS arrays for differential-mode suppression. Use Value: Clamps differential transients to ≤45.7 V while supporting UL 497B recognized protector classification. |
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 | DO-214AA package; 600 W rating; 33.3 V VWM; 53.3 V VC @ 11.3 A | Surface-mount footprint; higher clamping voltage; lower surge current capability | Select when board space constraints require SMD layout and thermal management via copper pour is feasible |
| 1.5KE33A | DO-201AD package; 1500 W rating; 28.2 V VWM; 49.9 V VC @ 30.1 A | Higher power handling; larger axial package; not AEC-Q101 qualified in standard grade | Choose for industrial systems requiring >600 W surge margin where DO-15 size is acceptable |
Compared with SMBJ33A and 1.5KE33A, the P6KE33A-E3/54 offers optimal balance of AEC-Q101 qualification, DO-15 through-hole manufacturability, and precise 45.7 V clamping - making it preferred for cost-sensitive automotive and industrial designs where leaded assembly and proven reliability are prioritized.
Availability
P6KE33A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, and telecom power interface projects requiring stable component supply with full traceability and RoHS compliance.
Supply support for P6KE33A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TransZorb® TVS family, engineered specifically for cost-effective, high-surge-capability overvoltage protection in commercial and automotive environments where robustness and standardized testing (e.g., AEC-Q101) are mandatory.
FAQ
What is the maximum clamping voltage of the P6KE33A-E3/54 under standard test conditions?
The P6KE33A-E3/54 has a maximum clamping voltage (VC) of 45.7 V when subjected to a 10/1000 μs waveform at 13.1 A peak pulse current. This value is measured per JEDEC standards and represents the upper limit of voltage imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6KE33A-E3/54 suitable for automotive applications?
Yes, the P6KE33A-E3/54 is AEC-Q101 qualified (as indicated by the HE3 suffix variant), and its E3 suffix meets JESD 201 class 1A whisker testing. While the P6KE33A-E3/54 itself carries the commercial-grade E3 suffix, Vishay explicitly lists the HE3 variant for automotive use - confirming the die and construction are qualified for under-hood environments when specified with HE3.
What does the "-E3/54" suffix indicate in P6KE33A-E3/54?
The "-E3" denotes RoHS-compliant, commercial-grade packaging with matte tin-plated leads and JESD 201 class 1A whisker resistance. The "/54" specifies the preferred package code: 13-inch paper tape and reel, with 4000 units per reel - standard for automated through-hole insertion equipment used in high-volume manufacturing of the P6KE33A-E3/54.
How does the P6KE33A-E3/54 differ from bidirectional TVS diodes like P6KE33CA?
The P6KE33A-E3/54 is unidirectional and features a cathode band for polarity identification, enabling use in DC circuits where reverse conduction must be blocked. In contrast, P6KE33CA is bidirectional with no polarity marking and symmetric clamping in both directions - making the P6KE33A-E3/54 appropriate for 24 V power rail protection, while P6KE33CA suits AC signal line or data bus protection.
What thermal derating applies to the P6KE33A-E3/54 above 25 °C ambient?
The P6KE33A-E3/54 follows a linear derating curve from 5.0 W at 25 °C to zero at 175 °C, with typical thermal resistance junction-to-lead (RθJL) of 20 °C/W. At 75 °C ambient, its power dissipation must be reduced to approximately 3.3 W - a key constraint when mounting near heat sources or in sealed enclosures where the P6KE33A-E3/54 operates continuously near its thermal limit.
P6KE33A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- Power - Peak Pulse:
- 600W
- 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:
- DO-204AC (DO-15)
P6KE33A-E3/54 FAQ
1.How can I place an order for P6KE33A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33A-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 P6KE33A-E3/54 reliable?
The price and inventory of P6KE33A-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 P6KE33A-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE33A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33A-E3/54?
P6KE33A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33A-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 P6KE33A-E3/54?
For technical support, including P6KE33A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33A-E3/54 requirements.
6.How does Aetrix verify that P6KE33A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE33A-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 P6KE33A-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE33A-E3/54?
All P6KE33A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33A-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 P6KE33A-E3/54 part is unused and in its original packaging.
Return procedure for P6KE33A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE33A-E3/54 Tags
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