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Taiwan Semiconductor Corporation P6KE33CA
- Part No.:
- P6KE33CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33CA.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,704
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Product details
Overview
P6KE33CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 33V nominal breakdown voltage (VBR min/max: 29.7–36.3V), 600W peak pulse power rating at 10/1000μs, clamping voltage of 47.7V at 13A peak surge current, and low dynamic impedance - deployed in automotive body electronics, industrial I/O interfaces, and LED driver input stages.
For engineers reviewing the P6KE33CA datasheet, P6KE33CA pinout, P6KE33CA application, or P6KE33CA equivalent, key selection criteria include bidirectional clamping capability, DO-204AC (DO-15) package compatibility, AEC-Q101 qualification status, junction temperature range (−55°C to +175°C), and compliance with IEC 61000-4-2/4-4/4-5 ESD/EFT/surge immunity standards.
Technical Context
The P6KE33CA operates as a silicon avalanche diode with symmetrical bidirectional clamping behavior - both anodes tied internally to form a common cathode structure, enabling identical VBR and VC characteristics in either polarity. Its fast response time (<5.0ns from 0V to VBR) ensures suppression before sensitive downstream circuitry sustains damage during fast-rising transients like ESD or EFT.
Thermal design relies on its 175°C maximum junction temperature and 5W steady-state power dissipation at 75°C ambient (with 9.5mm lead length), supported by UL 94V-0 mold compound and pure tin-plated leads compliant with J-STD-002 solderability. The device meets JESD201 Class 2 whisker resistance and is halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 29.7V / 36.3V - defines guaranteed avalanche conduction onset window under 1mA test current; determines minimum overvoltage threshold before clamping activates |
| VWM | 26.8V - maximum continuous reverse working voltage; must exceed system operating voltage to prevent leakage-induced power loss or false triggering |
| VC @ IPP | 47.7V @ 13A - clamped voltage during 10/1000μs surge; directly limits stress on protected ICs (e.g., MCU GPIO or CAN transceiver inputs) |
| PPK | 600W - peak pulse power handling at 10/1000μs waveform; enables survival of ISO 7637-2 Pulse 1/2/3a/b and IEC 61000-4-5 Level 3 surges |
| IR @ VWM | <1μA - ultra-low reverse leakage at rated standoff voltage; avoids loading of high-impedance sensor or reference circuits |
| TJ max | +175°C - extended thermal operating range supports under-hood automotive and high-temperature industrial environments without derating |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.400g mass; compatible with legacy through-hole assembly and automated tape-and-reel pick-and-place |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case with cathode band marking for unidirectional variants; P6KE33CA is bidirectional - no polarity marking required, symmetric terminal function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Bidirectional avalanche terminal | Functions as cathode when voltage on Anode 2 is positive; enables clamping in both directions without external orientation dependency |
| Anode 2 | Bidirectional avalanche terminal | Functions as cathode when voltage on Anode 1 is positive; internal symmetry ensures matched VBR and VC in either polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (H-suffix variant) | P6KE33CA-H is certified for automotive applications including engine control modules and ADAS sensor interfaces requiring zero defect reliability |
| 600W surge rating at 10/1000μs | Withstands repetitive ISO 7637-2 Pulse 5a (load dump) events up to 13A peak current without degradation |
| Clamping voltage ≤47.7V at 13A | Ensures protected 3.3V/5V/12V logic or analog circuits remain below absolute maximum ratings during surge events |
| Response time <5.0ns | Activates faster than typical microcontroller I/O protection diodes, preventing latch-up or gate oxide rupture in MOSFET drivers |
| Halogen-free & RoHS-compliant | Meets IPC-J-STD-609A Class 1 material declaration requirements for green manufacturing and end-of-life recycling |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting LIN bus transceivers and relay driver outputs from load dump and inductive kickback in vehicle door modules. IC Role / Device Role: Primary overvoltage clamp on 12V supply rail and signal lines, placed upstream of LDOs and interface ICs. Use Value: Limits transient voltage to ≤47.7V, preventing destruction of 5V-tolerant transceivers and enabling compliance with ISO 16750-2 Section 4.7 (load dump). |
Use Scenario: Shielding 24V digital input channels from field-wiring induced surges and EFT bursts in factory automation cabinets. IC Role / Device Role: First-line protection before optocoupler input stages and series current-limiting resistors. Use Value: Clamps 1kV/500A surge (IEC 61000-4-5 Level 3) to safe levels, eliminating false triggering and extending optocoupler lifetime. |
| LED Streetlight Driver Input Stage | Medical Patient Monitor ESD Interface |
Use Scenario: Safeguarding AC-DC primary-side controllers and MOSFET gates against lightning-induced surges on outdoor-rated 277VAC input lines. IC Role / Device Role: Parallel-connected TVS across bulk capacitor and bridge rectifier output to absorb line-to-line and line-to-ground transients. Use Value: 600W rating handles repeated 10/1000μs surges without thermal runaway; DO-15 package allows direct mounting near high-voltage nodes. |
Use Scenario: Protecting USB and serial communication ports on portable diagnostic devices from human-body-model (HBM) ESD events. IC Role / Device Role: Low-capacitance bidirectional clamp on data lines (D+/D−), placed adjacent to connector pins. Use Value: Sub-5ns response captures >80% of 15kV HBM discharge before reaching PHY IC; <1μA leakage preserves battery life in standby mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ33CA | Same DO-214AC (SMA) package; 33V VBR (29.7–36.3V), 600W PPK, but 500W rated at 10/1000μs per JEDEC; slightly higher VC (49.9V @ 12.4A) | Surface-mount only; requires PCB rework for through-hole legacy designs; better thermal performance in high-density layouts | Select SMAJ33CA when migrating to SMT or when board space constraints prohibit axial DO-15 placement |
| ON Semiconductor 1.5KE33CA | Same DO-204AC (DO-15) package; identical VBR/VC/PPK specs; AEC-Q101 not offered; higher IR (5μA @ VWM) vs. P6KE33CA's <1μA | Not qualified for automotive use; acceptable for industrial/commercial systems where AEC-Q101 is not mandated | Choose 1.5KE33CA for cost-sensitive non-automotive applications where leakage tolerance >1μA is acceptable |
Compared with SMAJ33CA and 1.5KE33CA, the P6KE33CA uniquely combines AEC-Q101 qualification, sub-1μA leakage, and DO-15 through-hole compatibility - making it the preferred choice for automotive replacement parts, legacy industrial upgrades, and medical devices requiring traceable qualification and low-power standby integrity.
Availability
P6KE33CA is available at Aetrix Electronics and suitable for automotive electronics, industrial programmable logic controllers, LED lighting drivers, and medical diagnostic equipment requiring stable component supply across long product lifecycles.
Supply support for P6KE33CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.
The P6KE series targets high-reliability transient suppression in harsh environments - engineered for automotive, industrial, and lighting applications where surge immunity, thermal stability, and qualification compliance are mandatory.
FAQ
What is the polarity configuration of P6KE33CA?
P6KE33CA is a bidirectional TVS diode with symmetrical avalanche characteristics in both polarities. Unlike unidirectional variants (e.g., P6KE33A), it has no cathode band marking and functions identically regardless of voltage polarity - ideal for AC-coupled lines or differential signal protection where directionality is undefined.
Does P6KE33CA meet AEC-Q101 qualification?
Yes - the P6KE33CA-H variant is explicitly AEC-Q101 qualified per the manufacturer's ordering information. Standard P6KE33CA is not qualified; engineers requiring automotive-grade reliability must specify the "H" suffix. Certification covers temperature cycling, mechanical shock, and humidity testing per AEC-Q101 Rev D.
What is the maximum clamping voltage of P6KE33CA under surge conditions?
The maximum clamping voltage (VC) of P6KE33CA is 47.7V at 13A peak pulse current (IPP), measured using the standard 10/1000μs double-exponential waveform. This value is guaranteed across the full operating temperature range and ensures protected circuits remain within safe voltage margins during transient events.
Can P6KE33CA replace P6KE33A in a design?
No - P6KE33CA is bidirectional while P6KE33A is unidirectional. Swapping them without circuit review risks improper clamping: P6KE33A conducts only in reverse bias, whereas P6KE33CA clamps in both directions. Use P6KE33CA only where bidirectional protection is intended, such as across AC lines or differential buses.
What is the junction capacitance of P6KE33CA at 0V bias?
The junction capacitance (CJ) of P6KE33CA is not specified in the provided documentation. While typical P6KE-series devices exhibit ~100–500pF at 0V, this parameter varies significantly with voltage and is not characterized for P6KE33CA in the official datasheet. For high-speed signal line protection, consult the manufacturer's characterization report or select a low-CJ TVS like the SMBJ33CA.
P6KE33CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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):
- 13.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE33CA FAQ
1.How can I place an order for P6KE33CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33CA 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 reliable?
The price and inventory of P6KE33CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE33CA is usually 5 days.
3.What payment methods are accepted for P6KE33CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33CA?
P6KE33CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33CA 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?
For technical support, including P6KE33CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33CA requirements.
6.How does Aetrix verify that P6KE33CA is sourced from the original manufacturer or authorized distributors?
All P6KE33CA 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 meets industry standards.
7.What is the process for return or replacement of P6KE33CA?
All P6KE33CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33CA, 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 part is unused and in its original packaging.
Return procedure for P6KE33CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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