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Taiwan Semiconductor Corporation P6KE33CH
- Part No.:
- P6KE33CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33CH.pdf
- Description:
- 600W, 33V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,620
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Product details
Overview
P6KE33CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 33V nominal breakdown voltage (VBR min/max: 29.7V–36.3V), 26.8V stand-off voltage (VWM), clamps to ≤47.7V at 13A peak surge current, and uses DO-204AC (DO-15) axial package for industrial power supply input stages.
For engineers reviewing the P6KE33CH datasheet, P6KE33CH pinout, P6KE33CH application, or P6KE33CH equivalent, key selection criteria include its AEC-Q101 qualification, 1.0ps response time (unidirectional), <1μA leakage above 10V, UL 94V-0 molding compound, and compatibility with 10/1000μs surge waveforms in automotive body electronics and industrial control I/O protection.
Technical Context
The P6KE33CH implements a silicon avalanche diode structure optimized for fast clamping under high-energy transients. Its unidirectional configuration provides forward conduction capability up to 100A IFSM (8.3ms half-sine), while maintaining low dynamic impedance (<1Ω typical) during 10/1000μs surges.
Junction temperature range spans −55°C to +175°C, enabling operation in under-hood automotive environments and industrial motor drives. The device's 0.098%/°C VBR temperature coefficient ensures stable clamping across thermal extremes without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 29.7V–36.3V - Ensures reliable avalanche initiation within ±10% of 33V nominal, critical for consistent overvoltage thresholding |
| VWM | 26.8V - Maximum continuous reverse operating voltage; must exceed system DC rail (e.g., 24V nominal bus) |
| VC @ IPP | 47.7V @ 13A - Clamping voltage during 10/1000μs surge; defines maximum stress on downstream ICs |
| PPK | 600W - Peak pulse power handling per 10/1000μs waveform; supports IEC 61000-4-5 Level 4 immunity |
| IR @ VWM | <1μA - Negligible leakage at operating voltage; avoids power loss in battery-backed or low-quiescent systems |
| Response Time | <1.0ps - Sub-picosecond turn-on enables protection against ESD and fast transients before IC damage occurs |
| Package | DO-204AC (DO-15) - Axial leaded through-hole package with 0.400g mass; compatible with standard wave soldering and manual repair |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to lower-potential side (e.g., GND or return rail); conducts during positive surges when cathode is biased higher |
| Cathode | Avalanche clamping node | Marked end; connects to protected line (e.g., 24V rail); avalanches into conduction when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control modules and body ECUs |
| UL 94V-0 flammability rating | Molding compound self-extinguishes within 10 seconds after flame removal-critical for safety-critical power systems |
| RoHS & halogen-free | Complies with IEC 61249-2-21; eliminates brominated flame retardants and chlorine/bromine content for eco-compliant manufacturing |
| Low dynamic impedance | Enables tighter clamping (VC/VBR ratio ≈1.43) versus competing TVS diodes, reducing voltage overshoot on protected nodes |
| 175°C max junction temperature | Supports placement near heat-generating components (e.g., MOSFETs, inductors) without derating in compact layouts |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECU power inputs exposed to load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role: Primary overvoltage clamp upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤47.7V, preventing damage to 36V-rated input regulators and logic ICs. |
Use Scenario: 24V digital input channels in programmable logic controllers subjected to field-wiring induced transients. IC Role / Device Role: Front-end transient suppression before optocoupler or Schmitt-trigger input conditioning. Use Value: Absorbs 600W surges without degradation, ensuring >100,000 surge cycles per IEC 61000-4-5 compliance. |
| LED Driver Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Constant-current LED drivers in street lighting exposed to lightning-induced surges on AC mains input. IC Role / Device Role: Secondary clamping stage after MOVs, handling residual fast-rising transients. Use Value: Sub-1ps response captures high-dI/dt edges missed by slower MOVs, protecting PWM controller ICs. |
Use Scenario: Low-voltage DC bias lines (e.g., 24V ring/sleeve) in telecom interface cards connected to outside plant wiring. IC Role / Device Role: Polarity-specific surge limiter on powered analog signal paths. Use Value: Unidirectional configuration prevents forward conduction during normal bias, eliminating signal distortion. |
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 SMAJ33A | Same DO-214AC package; 33V VBR (31.4–34.7V), 45.7V [email protected]; RoHS/halogen-free but not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial only | Select when AEC-Q101 is not required and surface-mount assembly is preferred |
| ON Semiconductor 1.5KE33CA | Higher PPK (1500W), bidirectional configuration, DO-201AD package; 33V VBR (29.7–36.3V), 53.3V [email protected] | Bidirectional operation supports AC-coupled or floating signal lines; larger package requires more PCB area | Select when bidirectional clamping or higher surge margin is needed, accepting larger footprint |
Compared with SMAJ33A and 1.5KE33CA, the P6KE33CH uniquely combines AEC-Q101 qualification, DO-204AC through-hole compatibility, and sub-1ps response in a cost-effective axial package-making it optimal for automotive and ruggedized industrial designs where reliability and legacy assembly processes matter.
Availability
P6KE33CH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, LED driver front-ends, and telecom DC bias line protection requiring stable component supply across multi-year production cycles.
Supply support for P6KE33CH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors since 1979.
The P6KE series was engineered for high-reliability transient suppression in harsh environments-targeting automotive, industrial automation, and infrastructure equipment where long-term stability and surge resilience are non-negotiable.
FAQ
What does the 'H' suffix in P6KE33CH signify?
The 'H' suffix in P6KE33CH indicates AEC-Q101 qualification per revision D, confirming rigorous stress testing for automotive applications including temperature cycling, humidity bias, and mechanical shock. This distinguishes it from standard P6KE33C and ensures suitability for under-hood ECUs and body control modules where reliability is mission-critical. The P6KE33CH meets all requirements defined in the AEC-Q101 standard.
How does P6KE33CH differ from P6KE33A?
The P6KE33CH is AEC-Q101 qualified and uses the same electrical specifications as P6KE33A (VBR: 31.4–34.7V, VWM: 28.2V, VC: 45.7V @ 13.8A), but adds automotive-grade screening and traceability. Unlike P6KE33A, the P6KE33CH undergoes additional qualification tests including HTSL, uHAST, and bond strength validation-making it appropriate for safety-relevant automotive subsystems where P6KE33A would not be approved.
Can P6KE33CH be used in bidirectional signal protection?
No-P6KE33CH is unidirectional and must be installed with correct polarity (cathode toward the protected line). For bidirectional protection, use the CA-suffixed variant (e.g., P6KE33CH is not interchangeable with P6KE33C or P6KE33CA). Reverse-biasing P6KE33CH beyond its 26.8V VWM risks permanent degradation due to excessive leakage or thermal runaway.
What is the maximum allowable ambient temperature for continuous operation of P6KE33CH?
The P6KE33CH supports continuous operation up to +75°C ambient when mounted on 5×5 mm copper pads per terminal, delivering 5W steady-state power dissipation. Above 75°C, derating follows the curve in Figure 2 of the datasheet-e.g., at +100°C ambient, maximum power drops to ~3.2W. Junction temperature remains within its −55°C to +175°C limit as long as PCB layout and airflow comply with TSC's thermal guidelines.
Is P6KE33CH compliant with lead-free soldering standards?
Yes-P6KE33CH features pure tin-plated leads qualified per J-STD-002 for lead-free reflow and wave soldering. Its DO-204AC package withstands peak temperatures up to 260°C for 10 seconds, meeting IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) requirements. No pre-baking is required for standard handling, and the device maintains mechanical integrity after multiple thermal cycles.
P6KE33CH 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE33CH FAQ
1.How can I place an order for P6KE33CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33CH 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 P6KE33CH reliable?
The price and inventory of P6KE33CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE33CH is usually 5 days.
3.What payment methods are accepted for P6KE33CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33CH?
P6KE33CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33CH 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 P6KE33CH?
For technical support, including P6KE33CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33CH requirements.
6.How does Aetrix verify that P6KE33CH is sourced from the original manufacturer or authorized distributors?
All P6KE33CH 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 P6KE33CH meets industry standards.
7.What is the process for return or replacement of P6KE33CH?
All P6KE33CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33CH, 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 P6KE33CH part is unused and in its original packaging.
Return procedure for P6KE33CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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