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Vishay General Semiconductor - Diodes Division P6KE33C-E3/54
- Part No.:
- P6KE33C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33C-E3/54.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6KE33C-E3/54 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features a 33 V breakdown voltage (VBR min/max: 31.4 V / 34.7 V), 28.2 V stand-off voltage (VWM), 45.7 V maximum clamping voltage at 13.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6KE33C-E3/54 datasheet, P6KE33C-E3/54 pinout, P6KE33C-E3/54 application, or P6KE33C-E3/54 equivalent, key selection criteria include bi-directional surge capability, clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 75 °C/W), RoHS-compliant matte tin plating, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The P6KE33C-E3/54 operates as a voltage-clamped avalanche diode, responding within picoseconds to transient overvoltages. Its bi-directional structure enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints, and it exhibits low incremental surge resistance to minimize voltage overshoot during high-current surges up to 13.1 A.
It is rated for repetitive 10/1000 μs pulses at 0.01 % duty cycle, with derating above 25 °C ambient per Fig. 2. Junction temperature range spans –55 °C to +175 °C, and thermal resistance from junction to ambient is 75 °C/W - requiring careful PCB copper area design for sustained power dissipation up to 5.0 W at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at IT = 1.0 mA - defines reliable avalanche initiation threshold in both directions |
| VWM | 28.2 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 45.7 V at 13.1 A - clamped voltage seen by protected circuit during worst-case 10/1000 μs surge |
| PPPM | 600 W - peak transient energy absorption capacity with standard 10/1000 μs waveform |
| IPPM | 13.1 A - maximum non-repetitive surge current the device safely clamps without failure |
| TJ max. | +175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance limiting power handling in still-air PCB mounting without heatsink |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; no polarity marking for bi-directional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Reversible avalanche junction | Either lead serves as anode or cathode depending on transient polarity - no fixed orientation required in layout |
| Case (body) | Non-electrical mechanical interface | DO-15 body provides mechanical anchoring and thermal path via PCB copper; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching spikes in 24 V industrial buses |
| AEC-Q101 qualified (HE3 suffix variant) | P6KE33C-E3/54 is commercial grade; HE3 variant meets automotive stress test requirements for engine control modules |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to downstream ICs - critical for 3.3 V or 5 V logic interfacing with 24 V sensors |
| RoHS-compliant, JESD 201 Class 1A whisker tested | Ensures solder joint integrity and process compatibility in automated assembly for consumer and telecom equipment |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Clamps 28.2 V nominal line to ≤45.7 V during 13.1 A surge - preserving signal integrity and preventing latch-up in 3.3 V microcontrollers. |
Use Scenario: Safeguarding 24 V DC digital input channels of programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff device mounted at connector entry point to shunt transient energy before reaching optocoupler or Schmitt trigger input stage. Use Value: Absorbs 600 W peak pulse without degradation, enabling >100,000 surge cycles in factory automation environments. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Secondary-level protection on Ethernet PHY power rails and RS-485 data lines exposed to ESD and fast transient bursts per IEC 61000-4-2/4-4. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to connector to reduce let-through voltage before primary GDT or MOV stages. Use Value: Sub-nanosecond response ensures clamping begins before sensitive PHY ICs experience overstress - verified per MIL-STD-883 Method 3015.7. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Parallel-mounted across motor terminals to clamp inductive kickback and prevent MOSFET drain-source breakdown. Use Value: Withstands 100 A IFSM single-half-sine surge - compatible with 15 A motor stall currents and repeated commutation events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | DO-214AA package; lower RθJA (50 °C/W); same VBR (31.4–34.7 V), but higher IPPM (19.9 A) and VC (53.3 V) | Better thermal performance in space-constrained layouts; higher clamping voltage may require margin check on 3.3 V receivers | Select SMBJ33CA when board space allows SMC footprint and higher surge current headroom is needed |
| 1.5KE33CA | DO-201AD package; identical VBR/VC specs; 1500 W PPPM; larger body (7.1 mm x 5.3 mm vs. DO-15's 4.2 mm x 2.2 mm) | Higher power rating suits infrequent but extreme surges (e.g., AC mains coupling); less suitable for dense PCBs | Choose 1.5KE33CA only where 1500 W rating is mandatory and package size is not constrained |
Compared with SMBJ33CA and 1.5KE33CA, P6KE33C-E3/54 offers optimal balance of compact DO-15 footprint, 600 W rating, and proven AEC-Q101-compatible variants - making it preferred for cost-sensitive, volume automotive and industrial designs where board area and consistent clamping are prioritized over ultra-high surge headroom.
Availability
P6KE33C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line cards, and consumer appliance motor drives requiring stable component supply and RoHS-compliant procurement.
Supply support for P6KE33C-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 power MOSFETs with emphasis on reliability and application-specific optimization.
The P6KE series was developed for cost-effective, high-volume transient suppression in commercial and automotive electronics - delivering standardized 600 W surge capability in the industry-standard DO-15 package.
FAQ
What does the "C" suffix indicate in P6KE33C-E3/54?
The "C" in P6KE33C-E3/54 denotes bi-directional configuration - meaning the device clamps voltage transients equally in both polarities, with no cathode marking on the DO-15 body. This distinguishes it from uni-directional variants like P6KE33A-E3/54, which feature a band-marked cathode and conduct forward current only in one direction. P6KE33C-E3/54 is specified for symmetric protection of AC-coupled or floating signal lines.
Is P6KE33C-E3/54 AEC-Q101 qualified?
No - P6KE33C-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial grade. The AEC-Q101 qualified version is P6KE33CHE3/54 (HE3 suffix), which undergoes additional stress testing including temperature cycling, humidity bias, and high-temperature operating life. For automotive under-hood applications, P6KE33CHE3/54 must be selected; P6KE33C-E3/54 is intended for industrial and consumer use where automotive qualification is not mandated.
What is the maximum clamping voltage of P6KE33C-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P6KE33C-E3/54 is 45.7 V, measured at its rated peak pulse current (IPPM) of 13.1 A using the standard 10/1000 μs waveform. This value represents the upper bound voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream components remain within their absolute maximum voltage ratings - for example, preserving 5 V logic interfaces when protecting 24 V sensor supply rails.
Can P6KE33C-E3/54 replace P6KE33A-E3/54 in a circuit?
No - P6KE33C-E3/54 is bi-directional while P6KE33A-E3/54 is uni-directional, so direct substitution requires circuit review. In DC-biased applications (e.g., 24 V supply rail protection), P6KE33A-E3/54 provides forward conduction path and lower leakage at VWM, whereas P6KE33C-E3/54 blocks in both directions and exhibits higher reverse leakage. Substituting P6KE33C-E3/54 for P6KE33A-E3/54 may cause unexpected current flow or insufficient clamping if polarity-dependent behavior is relied upon in the original design.
What is the thermal resistance of P6KE33C-E3/54, and how does it affect layout?
P6KE33C-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W under standard JEDEC test conditions. This means that at 5.0 W steady-state dissipation, junction temperature rises ~375 °C above ambient - far exceeding its 175 °C limit. Therefore, the device is intended for transient-only operation; PCB layout must provide adequate copper area (≥100 mm² per lead) to manage short-duration surge energy, and continuous power dissipation must remain below 0.25 W to avoid thermal runaway. P6KE33C-E3/54 should never be used as a voltage regulator.
P6KE33C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 12.6A
- 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)
P6KE33C-E3/54 FAQ
1.How can I place an order for P6KE33C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33C-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 P6KE33C-E3/54 reliable?
The price and inventory of P6KE33C-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 P6KE33C-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE33C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33C-E3/54?
P6KE33C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33C-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 P6KE33C-E3/54?
For technical support, including P6KE33C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33C-E3/54 requirements.
6.How does Aetrix verify that P6KE33C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE33C-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 P6KE33C-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE33C-E3/54?
All P6KE33C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33C-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 P6KE33C-E3/54 part is unused and in its original packaging.
Return procedure for P6KE33C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE33C-E3/54 Tags
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