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Vishay General Semiconductor - Diodes Division P6KE33CA-E3/73
- Part No.:
- P6KE33CA-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33CA-E3/73.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,856
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Product details
Overview
P6KE33CA-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features a 33 V breakdown voltage (VBR min/max = 31.4–34.7 V at 1.0 mA), 28.2 V stand-off voltage (VWM), 45.7 V maximum clamping voltage (VC) 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 P6KE33CA-E3/73 datasheet, P6KE33CA-E3/73 pinout, P6KE33CA-E3/73 application, or P6KE33CA-E3/73 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 20 °C/W), and low leakage (<1.0 µA at VWM) under standby conditions.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical avalanche behavior in both polarities, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1.0 ns), while the 10/1000 µs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
The P6KE33CA-E3/73 is rated for -55 °C to +175 °C operating junction temperature and exhibits a temperature coefficient of 0.098 %/°C on VBR, allowing predictable derating across thermal environments. Its 20 °C/W junction-to-lead thermal resistance supports reliable power dissipation up to 5.0 W on an infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at 1.0 mA - defines guaranteed avalanche initiation range for bidirectional clamping |
| VWM | 28.2 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 45.7 V at 13.1 A - clamping voltage during 10/1000 µs surge, limiting downstream component stress |
| PPPM | 600 W - peak transient power handling capacity under standard surge waveform |
| IPPM | 13.1 A - maximum non-repetitive surge current supported before clamping threshold is exceeded |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-temperature industrial environments |
| RθJL | 20 °C/W - allows accurate thermal design when mounted to PCB copper pour or lead frame |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminal | Either end functions identically - no polarity-dependent connection required in circuit layout |
| Lead 1 / Lead 2 | Current path for surge conduction | Leads serve as low-inductance, low-resistance paths to shunt transient energy to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 surges without external heat sinking |
| AEC-Q101 qualified | Validated for automotive electronics applications including engine control, body modules, and ADAS sensor interfaces |
| Glass passivated chip junction | Ensures long-term stability of breakdown voltage and low parameter drift over temperature and life |
| UL 94 V-0 molded compound | Meets flammability safety requirements for enclosed industrial and automotive enclosures |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), critical for protecting high-speed logic |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and ground to limit voltage excursions to safe levels. Use Value: Withstands 600 W surges and maintains VC ≤ 45.7 V, preventing damage to 33 V-rated microcontrollers and CAN transceivers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point to divert transients before reaching precision ADC front-end. Use Value: 1.0 µA leakage at 28.2 V ensures minimal impact on sensor offset and linearity in 4–20 mA loop designs. |
| Consumer Equipment AC/DC Input Stage | Telecom Data Line Surge Suppression |
Use Scenario: Safeguarding primary-side controllers in offline SMPS against lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across bridge rectifier output to clamp overvoltage spikes. Use Value: 175 °C max junction temperature and 20 °C/W RθJL allow reliable operation without thermal runaway during repeated surge events. |
Use Scenario: Protecting RS-485 transceivers in building automation networks exposed to induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging differential pair to ground, maintaining signal integrity during transient events. Use Value: Symmetrical VBR tolerance (±5%) ensures balanced clamping on both signal polarities, preserving common-mode rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | Surface-mount SMB package (vs. through-hole DO-15); same VBR range and PPPM rating | Requires PCB rework for SMT assembly; lower profile but reduced manual handling robustness | Select for space-constrained boards where automated placement is available and thermal pad access is feasible |
| 1.5KE33CA | Higher PPPM = 1500 W; larger DO-201AD package; identical VBR/VC specs | Used where higher surge margin is mandated (e.g., outdoor telecom cabinets or railway systems) | Choose when system-level surge test requirements exceed IEC 61000-4-5 Level 4 or MIL-STD-1275E Class III |
Compared with SMBJ33CA and 1.5KE33CA, the P6KE33CA-E3/73 offers optimal balance of cost, through-hole manufacturability, and AEC-Q101 qualification - making it preferred for mid-volume automotive and industrial control modules where DO-15 footprint compatibility and qualification traceability are mandatory.
Availability
P6KE33CA-E3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer power supplies, and telecom interface circuits requiring stable component supply with full RoHS and AEC-Q101 compliance documentation.
Supply support for P6KE33CA-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 reliability, qualification, and application-specific performance.
The P6KE series was developed for cost-sensitive, high-volume transient protection in commercial and automotive applications - delivering AEC-Q101-qualified surge robustness in the industry-standard DO-15 package.
FAQ
What is the clamping voltage of P6KE33CA-E3/73 under a 10/1000 µs surge?
The P6KE33CA-E3/73 has a maximum clamping voltage (VC) of 45.7 V at 13.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88369 and ensures downstream components see limited overvoltage during transient events. The P6KE33CA-E3/73 achieves this with low incremental surge resistance and symmetrical bidirectional conduction.
Is P6KE33CA-E3/73 qualified for automotive use?
Yes, P6KE33CA-E3/73 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., P6KE33CAHE3/73). The base part P6KE33CA-E3/73 carries the E3 suffix indicating RoHS compliance and commercial-grade qualification; however, the HE3 variant adds whisker resistance per JESD 201 Class 2 and full AEC-Q101 stress testing. Always verify suffix and datasheet revision for qualification scope.
What is the standoff voltage rating for P6KE33CA-E3/73?
The standoff voltage (VWM) for P6KE33CA-E3/73 is 28.2 V - the maximum DC or continuous AC voltage that can be applied without exceeding 1.0 µA reverse leakage current. This value is derived from the 10% margin below the minimum breakdown voltage (31.4 V) and ensures reliable blocking during normal operation while allowing headroom for system tolerances and temperature drift.
Does P6KE33CA-E3/73 have polarity markings?
No, P6KE33CA-E3/73 does not have polarity markings because it is a bidirectional TVS diode. Its symmetrical construction means either lead may connect to any node in the circuit - unlike unidirectional types (e.g., P6KE33A) which feature a cathode band. This simplifies layout and eliminates orientation errors during manual or automated assembly of the P6KE33CA-E3/73.
What package type is used for P6KE33CA-E3/73?
P6KE33CA-E3/73 uses the DO-15 (DO-204AC) axial-leaded package: 3.3–3.5 mm diameter, 25.4 mm minimum body length, with matte tin-plated leads solderable per J-STD-002. This through-hole package provides mechanical robustness, high surge current handling, and compatibility with legacy industrial and automotive assembly processes - distinguishing it from SMT alternatives like SMBJ33CA.
P6KE33CA-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
P6KE33CA-E3/73 FAQ
1.How can I place an order for P6KE33CA-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33CA-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 P6KE33CA-E3/73 reliable?
The price and inventory of P6KE33CA-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 P6KE33CA-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE33CA-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33CA-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33CA-E3/73?
P6KE33CA-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33CA-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 P6KE33CA-E3/73?
For technical support, including P6KE33CA-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33CA-E3/73 requirements.
6.How does Aetrix verify that P6KE33CA-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE33CA-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 P6KE33CA-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE33CA-E3/73?
All P6KE33CA-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33CA-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 P6KE33CA-E3/73 part is unused and in its original packaging.
Return procedure for P6KE33CA-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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