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Taiwan Semiconductor Corporation P6KE350CH
- Part No.:
- P6KE350CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE350CH.pdf
- Description:
- 600W, 350V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,510
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Product details
Overview
P6KE350CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge clamping in DC power rails and signal lines. It features a 350V nominal breakdown voltage (VBR min/max = 315V/385V), 284V standoff voltage (VWM), 504V maximum clamping voltage at 1.2A peak pulse current, and operates across –55°C to +175°C junction temperature range. It protects automotive lighting control modules against ISO 7637-2 load dump and EFT transients.
For engineers reviewing the P6KE350CH datasheet, P6KE350CH pinout, P6KE350CH application, or P6KE350CH equivalent, key selection criteria include clamping voltage margin relative to system rail, AEC-Q101 qualification status, DO-15 package thermal performance under sustained surge stress, and leakage current (<1μA at 284V) in high-impedance monitoring circuits.
Technical Context
The P6KE350CH uses an avalanche breakdown mechanism to clamp transient overvoltages within nanoseconds - response time <1.0ps from 0V to VBR. Its single-die DO-204AC (DO-15) construction delivers 600W non-repetitive peak pulse power at the standard 10/1000μs waveform, with derating above 25°C per Fig.2 of the datasheet.
It is rated for unidirectional operation only (cathode band marked), supports 100A peak forward surge current (IFSM), and maintains low dynamic impedance to limit voltage overshoot during fast-rising transients such as inductive switching events in 12V/24V automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 284 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin below clamping threshold. |
| VBR (min/max) | 315 V / 385 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on across production lots and temperature. |
| VC @ IPP | 504 V @ 1.2 A - Clamped voltage during 10/1000μs surge; determines maximum stress imposed on downstream ICs during worst-case transient. |
| PPK | 600 W - Peak pulse power handling at 10/1000μs; enables protection against ISO 7637-2 Pulse 5a (load dump) in automotive applications. |
| TJ max | +175 °C - Maximum junction temperature; supports placement near heat-generating components in engine bay or power distribution units. |
| IR @ VWM | <1 μA - Reverse leakage at standoff voltage; critical for low-power sensor interfaces where leakage could disrupt bias networks. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with 5×5 mm copper pad thermal mounting; UL 94V-0 rated molding compound. |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: cathode (banded end) connects to protected circuit's higher-potential side (e.g., VBAT), anode to ground or lower-potential return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference terminal | Connected to system ground or common return; forms clamping path during positive transients on cathode side. |
| Cathode (banded end) | High-side surge input terminal | Connected to protected line (e.g., 24V supply rail); avalanche conduction begins here when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for under-hood ECUs. |
| 600W 10/1000μs surge rating | Withstands full ISO 7637-2 Pulse 5a load dump energy without degradation; eliminates need for external series impedance in many designs. |
| Clamping voltage ≤504V at 1.2A | Provides ≥15% margin below 600V system insulation limits, enabling robust protection of 500V-rated MOSFETs and gate drivers. |
| Leakage <1μA at 284V | Preserves accuracy in high-impedance voltage monitoring circuits (e.g., battery sense lines) without loading error. |
| Fast response <1.0ps | Activates before most microsecond-scale transients fully develop, preventing latch-up or gate oxide damage in sensitive logic inputs. |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting LED driver ICs and MOSFETs in headlamp modules subjected to 24V load dump transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping device placed directly across 24V input rail upstream of DC-DC converter. Use Value: Limits transient voltage to 504V, ensuring downstream 600V-rated power FETs remain within SOA and avoid destructive avalanche failure. |
Use Scenario: Safeguarding digital input terminals of programmable logic controllers exposed to inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Unidirectional TVS connected between field input and common rail to shunt 100–200V switching spikes. Use Value: Sub-ns response prevents false triggering of optocouplers and reduces need for RC filtering, preserving signal integrity at 10kHz+ scan rates. |
| Telecom Power Supply Input | Medical Equipment Auxiliary Rails |
|
Use Scenario: Clamping surges on –48V telecom rectifier outputs caused by lightning-induced coupling on long cable runs. IC Role / Device Role / Timing Role: Standoff-rated TVS installed at power entry point before bulk capacitance and regulation stage. Use Value: 284V VWM allows stable operation across –48V ±15% input range while clamping >1kV transients to safe levels for downstream DC-DC controllers. |
Use Scenario: Protecting isolated 5V/3.3V auxiliary supplies in diagnostic imaging systems from ESD and EFT events per IEC 61000-4-2/4. IC Role / Device Role / Timing Role: Low-leakage TVS on secondary-side bias rails to prevent latch-up in isolated ADC reference circuits. Use Value: <1μA leakage avoids offset drift in precision analog front-ends; AEC-Q101 qualification provides traceable process control for regulated medical BOMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ350A | Same 350V nominal, DO-214AC (SMA) package, 400W rating, 512V clamping at 1.1A. | Lower surge rating and different footprint require PCB redesign; better suited for space-constrained consumer boards than automotive harness-mounted nodes. | Select when board area is constrained and 400W surge margin suffices; verify thermal relief pad design for SMA vs DO-15. |
| ON Semiconductor 1.5KE350A | Same 350V nominal, DO-201AD package, 1500W rating, 520V clamping at 2.9A; higher surge capacity but larger body. | Higher PPK supports repeated surge exposure (e.g., industrial motor drives), but longer leads increase inductance and degrade high-frequency clamping. | Select for high-cycle-count environments where 1500W margin justifies added size and layout impact; not drop-in compatible. |
Compared with SMAJ350A and 1.5KE350A, the P6KE350CH offers AEC-Q101 qualification and DO-15 thermal performance optimized for chassis-mounted automotive fuses and relay boxes, balancing surge capability, leakage, and qualification compliance without requiring layout changes for legacy DO-15 footprints.
Availability
P6KE350CH is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and telecom power supply input applications requiring stable component supply, AEC-Q101 traceability, and DO-15 mechanical compatibility.
Supply support for P6KE350CH 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, and rectifiers since 1979.
The P6KE series targets automotive and industrial surge protection, engineered specifically to meet AEC-Q101 requirements and deliver repeatable clamping performance in harsh ambient conditions.
FAQ
What is the clamping voltage of P6KE350CH and how is it measured?
The P6KE350CH has a maximum clamping voltage (VC) of 504 V at 1.2 A peak pulse current (IPP), measured using the standardized 10/1000 μs double-exponential surge waveform per ANSI/IEEE C62.35. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events, and is confirmed at TA = 25°C with specified test conditions. The P6KE350CH maintains this clamping performance across its full operating temperature range.
Is P6KE350CH suitable for bidirectional transient protection?
No, the P6KE350CH is a unidirectional TVS diode, indicated by the "H" suffix and cathode band marking. It conducts only when the cathode is positive relative to the anode. For bidirectional protection, a P6KE350C or P6KE350CA variant would be required. Using P6KE350CH in AC or bipolar signal paths risks failure due to reverse conduction beyond its rated parameters.
Does P6KE350CH meet automotive qualification standards?
Yes, the "H" suffix in P6KE350CH explicitly denotes AEC-Q101 qualification, verified per the full stress test schedule including HTGB, HTRB, TCT, and mechanical shock. This makes P6KE350CH suitable for automotive powertrain, body control, and lighting modules where component-level reliability validation is mandatory. The P6KE350CH data sheet version P2203 documents full compliance.
What is the thermal derating behavior of P6KE350CH above 25°C?
P6KE350CH follows the pulse derating curve in Figure 2 of the datasheet: peak pulse power decreases linearly from 600 W at 25°C to zero at 175°C junction temperature. At 75°C ambient with 9.5 mm lead length and 5×5 mm copper pads, its steady-state power dissipation (PD) is rated at 5 W. Designers must apply this derating when estimating safe surge repetition rates in high-temperature enclosures.
How does the leakage current of P6KE350CH compare to similar 350V TVS diodes?
P6KE350CH specifies maximum reverse leakage (ID) of <1 μA at its 284 V standoff voltage (VWM), measured at 25°C. This is tighter than many competing 350V TVS diodes (e.g., SMAJ350A: 5 μA at 284 V), making P6KE350CH preferable in high-impedance sensing circuits where leakage could introduce measurement error. The P6KE350CH maintains this low leakage across its full –55°C to +125°C operating range.
P6KE350CH 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):
- 284V
- Voltage - Breakdown (Min):
- 315V
- Voltage - Clamping (Max) @ Ipp:
- 504V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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)
P6KE350CH FAQ
1.How can I place an order for P6KE350CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE350CH 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 P6KE350CH reliable?
The price and inventory of P6KE350CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE350CH is usually 5 days.
3.What payment methods are accepted for P6KE350CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE350CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE350CH?
P6KE350CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE350CH 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 P6KE350CH?
For technical support, including P6KE350CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE350CH requirements.
6.How does Aetrix verify that P6KE350CH is sourced from the original manufacturer or authorized distributors?
All P6KE350CH 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 P6KE350CH meets industry standards.
7.What is the process for return or replacement of P6KE350CH?
All P6KE350CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE350CH, 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 P6KE350CH part is unused and in its original packaging.
Return procedure for P6KE350CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE350CH Tags
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