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Taiwan Semiconductor Corporation 1.5KE300C
- Part No.:
- 1.5KE300C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE300C.pdf
- Description:
- 1500W, 300V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,283
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Product details
Overview
1.5KE300C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 300V nominal breakdown voltage (VBR min 270V, max 330V), 243V working stand-off voltage (VWM), and 430V clamping voltage (VC) at 3.6A peak pulse current. It protects automotive power electronics and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE300C datasheet, 1.5KE300C pinout, 1.5KE300C application, or 1.5KE300C equivalent, key selection criteria include unidirectional polarity, DO-201 mechanical form factor, 175°C junction temperature rating, AEC-Q101 qualification status (confirmed for H-suffix variants), and compliance with IEC 61249-2-21 halogen-free requirements.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (243V), triggers avalanche conduction at VBR (270–330V), and limits transient energy by clamping to ≤430V during 10/1000μs surges. Its low dynamic impedance ensures rapid voltage suppression under fast-rising transients.
Designed for automotive-grade reliability, the 1.5KE300C meets ISO 7637-2 immunity standards and supports steady-state power dissipation of 5W at TL = 75°C on 16mm × 16mm copper pads. It exhibits <1μA leakage above 10V and a VBR temperature coefficient of 0.110%/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 270–330V - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 243V - maximum continuous reverse operating voltage before leakage exceeds 1μA |
| VC @ IPP = 3.6A | 430V - clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPK | 1500W - peak pulse power handling capability per JEDEC standard waveform |
| TJ max | 175°C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | DO-201 - industry-standard axial leaded package with tin-plated leads, UL 94V-0 rated molding |
| Leakage ID @ VWM | <1μA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002, and pass JESD 201 Class 2 whisker testing. Weight ≈ 0.090g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Connected to system ground or low-side return path; forms shunt path during overvoltage |
| Cathode | Protected line input | Connected to supply rail or signal line needing protection; polarity-marked band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500W surge rating | Handles severe load-dump and inductive-switching transients without degradation |
| Fast response time | <1.0ps rise-to-VBR enables protection of high-speed analog and digital interfaces |
| AEC-Q101 qualified option | H-suffix variants certified for automotive powertrain and chassis applications |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS-compliant manufacturing and end-of-life recycling |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance stabilization) |
Applications
| Automotive Power Input Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load-dump transients up to 120V for 400ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤430V during 10/1000μs pulses, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: 4–20mA current-loop sensor inputs in factory automation systems subject to EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Shunt protector across input terminals of precision op-amps and ADC front-ends. Use Value: Sub-1μA leakage preserves loop accuracy; 430V clamping prevents saturation and offset drift during 5kV EFT events. |
| LED Driver Overvoltage Clamp | Motor Drive Gate Driver Protection |
Use Scenario: Constant-current LED drivers in outdoor signage subjected to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary-level clamping device across bulk capacitor input to absorb line-to-ground transients. Use Value: 1500W rating sustains multiple 10/1000μs surges without parametric shift; DO-201 allows manual rework in high-power assemblies. | Use Scenario: Isolated gate driver supplies in BLDC inverters experiencing shoot-through-induced voltage spikes. IC Role / Device Role / Timing Role: Reverse-biased protection across isolated DC bias rails feeding high-side gate drivers. Use Value: 243V VWM permits use on 200V-rated auxiliary rails; 175°C TJ rating matches MOSFET thermal environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300A | Surface-mount SMB package; 300V VBR, 438V VC @ 3.4A; lower PPK (600W) | Requires PCB layout change; unsuitable for through-hole legacy designs or high-reliability manual assembly | Select when space-constrained layouts demand SMT and surge energy is ≤600W |
| 1.5KE300A | Same DO-201 package and electrical specs; tighter VBR tolerance (285–315V vs. 270–330V); same 414V VC @ 3.8A | No functional difference in protection performance; preferred where tighter voltage binning improves margin analysis | Choose for enhanced statistical process control in high-volume automotive production |
Compared with SMBJ300A, the 1.5KE300C offers 2.5× higher surge power and through-hole robustness; compared with 1.5KE300A, it provides broader VBR tolerance for cost-sensitive industrial applications where tighter binning isn't required.
Availability
1.5KE300C is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial PLC analog modules, LED driver front-ends, and motor drive auxiliary supplies requiring stable component supply and long-term manufacturability.
Supply support for 1.5KE300C 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 for automotive, industrial, and consumer markets.
The 1.5KE series was developed to deliver high-energy transient suppression in ruggedized axial packages for under-hood and factory-floor applications where reliability under thermal and mechanical stress is critical.
FAQ
What is the polarity configuration of the 1.5KE300C?
The 1.5KE300C is a unidirectional TVS diode, with cathode marked by a band on the DO-201 body. It conducts only during reverse overvoltage events-forward conduction is not intended for protection. This polarity matches standard DC power rail protection topologies where the cathode connects to the protected line and anode to ground. The 1.5KE300C does not function as a bidirectional device.
Does the 1.5KE300C meet AEC-Q101 qualification?
The base 1.5KE300C part is not AEC-Q101 qualified; however, the 1.5KE300CH variant (with "H" suffix) is explicitly qualified per AEC-Q101 Rev D for automotive applications. Qualification includes stress testing for temperature cycling, humidity bias, and mechanical shock. For automotive designs requiring formal qualification, specify 1.5KE300CH-not 1.5KE300C-to ensure compliance.
What is the maximum clamping voltage of the 1.5KE300C under standard test conditions?
The 1.5KE300C has a maximum clamping voltage (VC) of 430V when subjected to a 10/1000μs surge waveform at a peak pulse current (IPP) of 3.6A. This value is measured per JEDEC Standard 20101 and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. The 1.5KE300C maintains this clamping performance across its full operating temperature range (−55°C to +175°C).
How does the 1.5KE300C compare to the 1.5KE300A in terms of electrical parameters?
The 1.5KE300C has a VBR range of 270–330V and clamps at 430V @ 3.6A, while the 1.5KE300A specifies VBR of 285–315V and clamps at 414V @ 3.8A. Both share identical DO-201 packaging, 1500W PPK, and 243V VWM. The 1.5KE300A's tighter VBR tolerance supports more deterministic design margins, whereas the 1.5KE300C offers broader binning for cost-sensitive applications. The 1.5KE300C remains fully compatible in circuits designed for the 1.5KE300A.
Can the 1.5KE300C be used in bidirectional configurations?
No-the 1.5KE300C is strictly unidirectional and must not be used in bidirectional applications. Bidirectional protection requires symmetrical devices such as the 1.5KE300CA (C-suffix indicates bidirectional). Using the 1.5KE300C in reverse-biased configurations risks catastrophic failure during positive transients, as it lacks forward conduction capability. Always verify suffix: "C" alone = unidirectional; "CA" = bidirectional.
1.5KE300C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 243V
- Voltage - Breakdown (Min):
- 270V
- Voltage - Clamping (Max) @ Ipp:
- 430V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE300C FAQ
1.How can I place an order for 1.5KE300C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE300C 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 1.5KE300C reliable?
The price and inventory of 1.5KE300C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE300C is usually 5 days.
3.What payment methods are accepted for 1.5KE300C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE300C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE300C?
1.5KE300C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE300C 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 1.5KE300C?
For technical support, including 1.5KE300C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE300C requirements.
6.How does Aetrix verify that 1.5KE300C is sourced from the original manufacturer or authorized distributors?
All 1.5KE300C 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 1.5KE300C meets industry standards.
7.What is the process for return or replacement of 1.5KE300C?
All 1.5KE300C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE300C, 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 1.5KE300C part is unused and in its original packaging.
Return procedure for 1.5KE300C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE300C Tags
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