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Taiwan Semiconductor Corporation P6KE33C
- Part No.:
- P6KE33C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33C.pdf
- Description:
- 600W, 33V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,639
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Product details
Overview
P6KE33C from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 33 V, clamps transients to ≤47.7 V at 13.0 A peak surge current (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range - deployed in automotive lighting control modules and industrial sensor interfaces.
For engineers reviewing the P6KE33C datasheet, P6KE33C pinout, P6KE33C application, or P6KE33C equivalent, key selection criteria include its bidirectional configuration, DO-204AC (DO-15) package compatibility, 26.8 V standoff voltage, <1 μA leakage above 10 V, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The P6KE33C is a silicon avalanche diode optimized for fast clamping of high-energy transients. Its bidirectional structure enables symmetrical protection without polarity sensitivity, with breakdown voltage specified at 29.7–36.3 V (min/max) under 1 mA test current and clamping voltage guaranteed ≤47.7 V at 13.0 A IPP.
It delivers 600 W non-repetitive peak pulse power per 10/1000 µs waveform, exhibits low dynamic impedance, and achieves sub-nanosecond response time (<1 ps for unidirectional reference, 5 ns for bidirectional operation). Thermal derating follows standard curves up to 175 °C TJ max.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPK) | 600 W - sustains single high-energy surges per IEC 61000-4-5 Level 4 without failure |
| Standoff Voltage (VWM) | 26.8 V - maximum continuous reverse voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 29.7–36.3 V @ 1 mA - defines onset of avalanche conduction; tight tolerance supports precise system margining |
| Clamping Voltage (VC) | ≤47.7 V @ 13.0 A - limits protected circuit voltage during worst-case surge, enabling 3.3 V/5 V IC survival |
| Junction Temperature Range | –55 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
| Leakage Current (ID) | <1 μA @ 26.8 V - negligible standby power loss and minimal impact on high-impedance sensing nodes |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package compatible with legacy through-hole assembly |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded plastic case with UL 94V-0 rating; cathode band not applicable (bidirectional device).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | No polarity marking required; terminals interchangeable - simplifies PCB layout and eliminates orientation errors |
| Lead 1 | Terminal connection | Tin-plated, solderable per J-STD-002; supports wave and hand soldering with 0.4 g unit weight |
| Lead 2 | Terminal connection | Identical to Lead 1; symmetric construction ensures identical electrical behavior in either direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements |
| 600 W surge capability | Withstands 10/1000 µs transients up to 13.0 A without degradation - exceeds IEC 61000-4-5 Level 4 immunity |
| Fast response time | 5 ns turn-on for bidirectional mode - engages before sensitive downstream logic or analog circuitry is damaged |
| Low dynamic impedance | Enables stable clamping performance across varying surge amplitudes and temperatures |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU directives - suitable for green manufacturing and export compliance |
Applications
| Automotive LED Headlamp Drivers | Industrial PLC Digital Input Modules |
|---|---|
Use Scenario: Protects MOSFET gate drivers and current-sense amplifiers from load-dump and inductive kickback in 12 V/24 V headlamp circuits. IC Role / Device Role: Primary overvoltage clamp placed across power rail input prior to DC-DC converter. Use Value: Clamps 12 V rail transients to ≤47.7 V, ensuring downstream 3.3 V microcontrollers and op-amps remain within absolute maximum ratings. |
Use Scenario: Shields 24 V digital input optocouplers and level translators from EFT bursts and field-wiring induced spikes. IC Role / Device Role: Front-end transient suppressor on isolated input channel before signal conditioning stage. Use Value: Limits voltage excursion to safe levels during 4 kV EFT (IEC 61000-4-4) events, preventing false triggering or latch-up in interface ICs. |
| Smart Building Occupancy Sensors | Medical Diagnostic Equipment Power Rails |
Use Scenario: Guards PIR sensor signal path and MCU I/O pins against ESD and cable discharge events in wall-mounted units. IC Role / Device Role: Bidirectional TVS on differential analog front-end and UART lines. Use Value: Symmetric clamping preserves signal integrity during ±8 kV contact ESD (IEC 61000-4-2), avoiding offset shifts or saturation in low-voltage analog stages. |
Use Scenario: Safeguards auxiliary 5 V/3.3 V rails powering ADCs, clocks, and communication ICs in imaging subsystems. IC Role / Device Role: Secondary-level rail protection after primary AC-DC and DC-DC conversion stages. Use Value: Prevents surge-induced reset or data corruption during line transients, supporting essential safety-critical uptime 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 |
|---|---|---|---|
| Littelfuse SMAJ33CA | Same DO-214AC (SMA) package; 600 W rating; VBR = 36.7–40.6 V; VC = 53.3 V @ 11.3 A | Higher clamping voltage and surface-mount only - requires PCB redesign | Select when SMT assembly is mandatory and higher clamping margin is acceptable |
| ON Semiconductor 1.5KE33CA | Same DO-15 package; 1500 W rating; VBR = 28.2–31.4 V; VC = 53.3 V @ 28.3 A | Higher power handling but looser VBR tolerance and higher leakage (>5 μA) | Choose for higher surge energy environments where tighter voltage regulation is secondary to robustness |
Compared with SMAJ33CA and 1.5KE33CA, the P6KE33C offers tighter VBR tolerance (±10%), lower clamping voltage (47.7 V vs. ≥53.3 V), and AEC-Q101 qualification - making it optimal for space-constrained, automotive-grade 24 V systems requiring precise voltage limiting.
Availability
P6KE33C is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC inputs, smart building sensors, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P6KE33C 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in harsh-environment applications - emphasizing low clamping, fast response, and long-term parametric stability.
FAQ
What is the polarity configuration of the P6KE33C?
The P6KE33C is a bidirectional TVS diode with symmetrical avalanche characteristics - it has no anode/cathode distinction and functions identically regardless of terminal orientation. This eliminates polarity-related assembly errors and simplifies design-in for AC-coupled or floating signal paths. The P6KE33C does not feature a cathode band marking, consistent with its bidirectional architecture.
Is the P6KE33C AEC-Q101 qualified?
Yes, the P6KE33C is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H" (e.g., P6KE33CH) and documentation in the P6KE series datasheet Version P2203. This qualification covers stress tests including HTGB, HTRB, TST, and mechanical shock - validating suitability for automotive powertrain, chassis, and body electronics applications.
What is the maximum clamping voltage of the P6KE33C under surge conditions?
The P6KE33C has a maximum clamping voltage (VC) of 47.7 V at 13.0 A peak pulse current (IPP), tested with the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by protected circuitry during worst-case transient events - critical for ensuring downstream 3.3 V or 5 V ICs remain within safe operating area.
Can the P6KE33C replace the P6KE33A in an existing design?
The P6KE33C and P6KE33A share identical package (DO-204AC), standoff voltage (26.8 V), and clamping voltage (47.7 V), but differ in breakdown voltage range: P6KE33C is 29.7–36.3 V while P6KE33A is 31.4–34.7 V. The P6KE33C offers wider VBR tolerance and is bidirectional; P6KE33A is unidirectional. Substitution requires verifying polarity requirements and system-level margin against the broader VBR spread of the P6KE33C.
What is the thermal derating behavior of the P6KE33C above 25°C ambient?
The P6KE33C follows standard JEDEC thermal derating: its 600 W peak pulse power rating decreases linearly above 25°C ambient, reaching ~50% capacity at 75°C and zero at 175°C junction temperature. Derating is defined per Figure 2 in the datasheet and applies to both repetitive and non-repetitive surge conditions - requiring thermal design consideration when deployed in enclosed or high-ambient environments.
P6KE33C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 13A
- 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 FAQ
1.How can I place an order for P6KE33C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33C 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 reliable?
The price and inventory of P6KE33C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE33C is usually 5 days.
3.What payment methods are accepted for P6KE33C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33C?
P6KE33C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33C 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?
For technical support, including P6KE33C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33C requirements.
6.How does Aetrix verify that P6KE33C is sourced from the original manufacturer or authorized distributors?
All P6KE33C 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 meets industry standards.
7.What is the process for return or replacement of P6KE33C?
All P6KE33C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33C, 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 part is unused and in its original packaging.
Return procedure for P6KE33C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE33C Tags
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