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Taiwan Semiconductor Corporation P6KE350CAH
- Part No.:
- P6KE350CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE350CAH.pdf
- Description:
- TVS DIODE 300VWM 482VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,032
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Product details
Overview
P6KE350CAH from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 350V nominal breakdown voltage (VBR min/max: 315V–385V), 284V stand-off voltage (VWM), clamping voltage of 504V at 1.2A peak surge current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the P6KE350CAH datasheet, P6KE350CAH pinout, P6KE350CAH application, or P6KE350CAH equivalent, this device is selected for robust ESD/EFT immunity in 24V/48V DC systems, inductive load switching protection, and compliance-critical automotive electronics where low leakage (<1 μA @ 284V), fast response (<5 ns), and UL recognition (E-326243) are required.
Technical Context
The P6KE350CAH implements a silicon avalanche diode structure optimized for bidirectional clamping across both polarities, with symmetrical VBR (315–385 V) and VC (504 V @ IPP = 1.2 A) characteristics. Its DO-204AC (DO-15) package supports lead-free soldering and meets JESD201 Class 2 whisker resistance.
It operates over –55°C to +175°C junction temperature, with thermal derating per Fig.2 and 10/1000 μs surge waveform compliance per ANSI/IEEE C62.35. The device exhibits <1 μA reverse leakage at VWM and a temperature coefficient of VBR at 0.110 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 284 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 315 V / 385 V - Breakdown initiates within this range at 1 mA test current |
| VC @ IPP | 504 V @ 1.2 A - Clamped voltage during 10/1000 μs surge, limiting downstream stress |
| PPK | 600 W - Peak pulse power handling capability per single 10/1000 μs transient |
| IR @ VWM | <1 μA - Minimal leakage ensures negligible standby power loss in high-impedance circuits |
| TJ max | +175 °C - Enables placement near hot components (e.g., power MOSFETs, engine control units) |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with tin-plated leads, UL 94V-0 rated molding |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking for unidirectional variants; P6KE350CAH is bidirectional and non-polarized - both leads serve as symmetrical terminals with no functional distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Either terminal accepts positive or negative transients; no polarity dependency in circuit layout |
| Lead 1 / Lead 2 | PCB connection interface | 0.4 mm diameter tinned copper leads, compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per AEC standard |
| 600W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 4 surges without degradation |
| Clamping voltage ≤504V | Protects 300V-rated downstream components (e.g., gate drivers, microcontrollers) during 1.2A transients |
| Response time <5 ns | Faster than MOVs or GDTs, enabling protection of high-speed analog and digital interfaces |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in North America |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24V/48V battery-supplied ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device placed at main power entry point to shunt >100V transients before they reach PMICs or MCUs. Use Value: Limits rail voltage to ≤504V during 1.2A surges, preserving 300V-rated input capacitors and LDOs without derating. | Use Scenario: Digital input modules receiving 24V DC signals from field sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional TVS on each channel to absorb EFT bursts (IEC 61000-4-4) and inductive kickback from solenoid coils. Use Value: Prevents false triggering and latch-up in optocouplers and level shifters by clamping transients within 5 ns. |
| LED Driver Surge Suppression | Telecom Power Interface |
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges on AC mains or DC bus lines. IC Role / Device Role / Timing Role: Secondary protection stage after bulk MOV, absorbing residual energy and providing precise voltage clamping. Use Value: Maintains driver IC integrity by holding clamp voltage below 504V while surviving repeated 600W pulses per IEC 61000-4-5. | Use Scenario: 48V DC power feed to remote radio units in 4G/5G base stations. IC Role / Device Role / Timing Role: Input-side TVS on PoE-like power interface to meet GR-1089-CORE lightning surge requirements. Use Value: Provides certified UL-listed, RoHS-compliant clamping with <1 μA leakage to avoid affecting upstream DC-DC converter regulation. |
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 SMAJ350CA | Same 350V nominal, DO-214AC (SMA) package, 600W rating, but 510V clamping voltage at 1.2A | SMA package offers smaller footprint but lower thermal mass; less suitable for sustained ambient >105°C | Select when board space is constrained and thermal derating margin allows SMA package use |
| ON Semiconductor 1.5KE350CA | Same 350V rating, DO-201AD package, 1500W peak power, 520V clamping at 2.9A | Higher surge capacity suits infrequent high-energy events (e.g., direct lightning coupling), but larger size and higher leakage (~5 μA) | Select when system-level testing requires >1000W surge headroom and PCB layout accommodates larger DO-201AD |
Compared with P6KE350CAH, SMAJ350CA trades thermal robustness for compactness, while 1.5KE350CA increases surge margin at the cost of leakage and footprint-making P6KE350CAH optimal for AEC-Q101-compliant, space-constrained automotive power rails requiring consistent 600W performance and ultra-low leakage.
Availability
P6KE350CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, LED driver protection, and telecom power interface applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 compliance.
Supply support for P6KE350CAH 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 thyristors since 1979.
The P6KE series was developed specifically for automotive-grade transient suppression, emphasizing AEC-Q101 reliability, tight VBR tolerances, and consistent clamping performance across wide temperature ranges.
FAQ
What does the 'CA' suffix indicate in P6KE350CAH?
The 'CA' suffix in P6KE350CAH denotes bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This distinguishes it from unidirectional variants (e.g., P6KE350A), which require correct anode/cathode orientation. The 'H' suffix confirms AEC-Q101 qualification, making P6KE350CAH suitable for automotive under-hood environments.
Is P6KE350CAH compatible with lead-free reflow soldering processes?
Yes, P6KE350CAH uses pure tin-plated leads compliant with J-STD-002 solderability standards and supports lead-free reflow profiles up to 260°C peak temperature. Its DO-204AC (DO-15) package has been validated for compatibility with standard IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) handling, and the molding compound meets UL 94V-0 flammability requirements.
How does the clamping voltage of P6KE350CAH compare to its breakdown voltage?
P6KE350CAH has a minimum breakdown voltage (VBR) of 315 V and a maximum clamping voltage (VC) of 504 V at 1.2 A peak current. The 189 V difference represents the dynamic voltage rise under surge conditions - a critical design margin that ensures protected ICs see no more than 504 V even during full-rated 600W transients. This ratio (VC/VBR ≈ 1.6) reflects optimized avalanche dynamics for reliable, repeatable clamping.
Can P6KE350CAH be used in parallel for higher surge current handling?
No - P6KE350CAH should not be paralleled without external balancing resistors due to VBR tolerance (±10% typical) causing current imbalance and potential thermal runaway. For higher surge ratings, select a single higher-power device like 1.5KE350CA (1500W) or verify matched-bin pairing with TSC's characterization data. The P6KE350CAH datasheet does not recommend or characterize parallel operation.
What is the maximum operating temperature for P6KE350CAH in continuous service?
P6KE350CAH has a maximum junction temperature (TJ) of +175°C, but continuous power dissipation is limited by ambient conditions and PCB thermal design. At TA = 75°C, its steady-state power rating is 5 W with 9.5 mm lead lengths mounted on 5 × 5 mm copper pads. Derating curves (Fig.2) show usable power drops to ~2.5 W at TA = 125°C - confirming suitability for under-hood automotive locations when thermally managed.
P6KE350CAH 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):
- 300V
- Voltage - Breakdown (Min):
- 332V
- Voltage - Clamping (Max) @ Ipp:
- 482V
- Current - Peak Pulse (10/1000µs):
- 1.3A
- 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)
P6KE350CAH FAQ
1.How can I place an order for P6KE350CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE350CAH 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 P6KE350CAH reliable?
The price and inventory of P6KE350CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE350CAH is usually 5 days.
3.What payment methods are accepted for P6KE350CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE350CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE350CAH?
P6KE350CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE350CAH 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 P6KE350CAH?
For technical support, including P6KE350CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE350CAH requirements.
6.How does Aetrix verify that P6KE350CAH is sourced from the original manufacturer or authorized distributors?
All P6KE350CAH 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 P6KE350CAH meets industry standards.
7.What is the process for return or replacement of P6KE350CAH?
All P6KE350CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE350CAH, 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 P6KE350CAH part is unused and in its original packaging.
Return procedure for P6KE350CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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