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Taiwan Semiconductor Corporation 1.5KE300CA A0G
- Part No.:
- 1.5KE300CA A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE300CA A0G.pdf
- Description:
- TVS DIODE 256VWM 414VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,158
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Product details
Overview
1.5KE300CA A0G from Taiwan Semiconductor is a bidirectional 300V transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500W peak pulse power at 10/1000μs, with 243V working stand-off voltage, 270–315V breakdown voltage range, and 414V maximum clamping voltage at 3.8A peak impulse current - used for ISO 7637-2 Pulse 1/2a/2b/3a/3b protection in automotive power line interfaces.
For engineers reviewing the 1.5KE300CA A0G datasheet, 1.5KE300CA A0G pinout, 1.5KE300CA A0G application, or 1.5KE300CA A0G equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, DO-201 mechanical data, AEC-Q101 qualification status, and real-world surge immunity use cases without generic assumptions.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with clamping initiated within 5.0ns from zero volts to VBR, enabling fast suppression of EFT and load-dump transients. Its low dynamic impedance ensures minimal voltage overshoot during 1500W surges.
Designed for automotive-grade reliability, it meets ISO 7637-2 Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection & coupling), and Pulse 3a/3b (EFT), and is qualified to AEC-Q101 with JESD201 Class 2 whisker resistance and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 243 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe DC/AC bias margin. |
| VBR min/max | 270 V / 315 V @ 1 mA - Verified breakdown threshold range; guarantees conduction onset within spec under standardized test conditions. |
| VC @ IPP | 414 V @ 3.8 A - Clamped voltage during full 1500W surge; determines maximum stress imposed on protected downstream circuitry. |
| PPK | 1500 W - Peak pulse power handling per 10/1000µs waveform; defines transient energy absorption capability. |
| Junction temp | −55°C to +175°C - Operational temperature envelope; supports under-hood automotive placement without derating loss. |
| Package | DO-201 - Axial-leaded, through-hole package with tin-plated leads; compatible with standard wave soldering and manual assembly. |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking for unidirectional variants; 1.5KE300CA A0G is bidirectional and marked with part-specific code (no polarity band). Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No functional polarity - either lead serves as anode or cathode depending on transient polarity; enables single-device protection of AC or differential lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, humidity, and mechanical shock per AEC specification. |
| ISO 7637-2 compliance | Tested and verified for Pulse 1 (inductive load dump), Pulse 2a/2b (battery interruption), and Pulse 3a/3b (EFT), ensuring system-level EMC robustness. |
| 5.0 ns response time | Time from 0 V to VBR under bidirectional surge - fast enough to protect CAN, LIN, and sensor interfaces from nanosecond-scale transients. |
| UL 94V-0 molding | Flame-retardant encapsulation prevents fire propagation in high-energy fault conditions, meeting automotive safety standards. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load-dump transients up to ±120V during alternator regulation failure. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across power input pins upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤414V during 1500W pulses, preventing latch-up or permanent damage to 36V-rated input stages. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt protector on signal lines, preserving signal integrity up to 1 MHz. Use Value: Clamps fast EFT bursts (IEC 61000-4-4) within 5 ns while maintaining <1 µA leakage at 243 V, avoiding sensor offset drift. |
| LED Lighting Driver Protection | Telecom Power Supply Input Stage |
Use Scenario: Safeguarding constant-current LED drivers against inductive kickback from relay-controlled dimming circuits. IC Role / Device Role / Timing Role: Bidirectional clamp across driver input terminals, absorbing reverse EMF from coil de-energization. Use Value: Withstands repetitive 1500W surges without degradation, extending driver lifetime in commercial lighting systems. | Use Scenario: Front-end protection of 48V telecom rectifiers exposed to lightning-induced surges on outdoor copper lines. IC Role / Device Role / Timing Role: First-stage TVS in multi-tier protection scheme, diverting bulk surge energy before MOV and GDT stages. Use Value: Provides precise 414V clamping ceiling, enabling tighter design margins for downstream 60V-rated MOSFETs and controllers. |
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 SMAJ300CA | Same DO-214AC (SMA) package; 414V VC @ 3.8A but lower PPK = 400W; not AEC-Q101 qualified. | Suitable for non-automotive industrial use where space constraints favor surface-mount; insufficient for ISO 7637-2 Pulse 1 compliance. | Select only when board layout mandates SMD and automotive qualification is unnecessary. |
| ON Semiconductor 1.5SMC300CA | DO-214AB (SMC) package; identical 1500W rating and 414V VC; AEC-Q101 qualified but higher VWM = 256V. | Offers same automotive robustness but requires larger PCB footprint; better suited for high-vibration environments due to stronger lead attachment. | Prefer when mechanical reliability outweighs size constraints, especially in heavy-duty vehicle systems. |
Compared with 1.5KE300CA A0G, SMAJ300CA trades automotive qualification and surge capacity for compact SMD packaging, while 1.5SMC300CA matches performance but increases board area by ~30% - making 1.5KE300CA A0G optimal for cost-sensitive, through-hole automotive designs requiring proven ISO 7637-2 immunity.
Availability
1.5KE300CA A0G is available at Aetrix Electronics and suitable for automotive ECU power line protection, industrial sensor interface hardening, LED driver surge resilience, and telecom front-end transient suppression requiring stable component supply across production lifecycles.
Supply support for 1.5KE300CA A0G 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, and rectifiers with global distribution and AEC-Q101 validation capabilities.
The 1.5KE series was engineered specifically for automotive and industrial transient immunity, emphasizing high-power clamping, fast response, and environmental ruggedness - targeting ISO 7637-2 and AEC-Q101 compliance out-of-the-box.
FAQ
What is the clamping voltage of the 1.5KE300CA A0G under maximum surge conditions?
The 1.5KE300CA A0G has a maximum clamping voltage (VC) of 414 V at 3.8 A peak impulse current (IPP), measured per 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full 1500W transient event and is confirmed in Taiwan Semiconductor's official 1.5KE series datasheet revision O2104.
Is the 1.5KE300CA A0G bidirectional, and how does that affect its circuit placement?
Yes, the 1.5KE300CA A0G is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This allows direct placement across AC lines, differential buses, or ungrounded power rails - unlike unidirectional variants, no cathode orientation check is required during assembly.
Does the 1.5KE300CA A0G meet AEC-Q101 qualification, and what tests does that include?
Yes, the 1.5KE300CA A0G is AEC-Q101 qualified, as indicated by the "A" suffix and documented in Taiwan Semiconductor's ordering information. This qualification covers stress tests including temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing (uHAST), and mechanical shock - validating suitability for automotive under-hood applications.
What is the working stand-off voltage (VWM) of the 1.5KE300CA A0G, and why is it critical for system design?
The 1.5KE300CA A0G has a working stand-off voltage (VWM) of 243 V, which is the maximum continuous DC or RMS voltage the device can block without exceeding 1 µA leakage. This parameter ensures reliable operation in 24V or 48V systems with margin against ripple and tolerance drift, preventing false triggering during normal operation.
How does the 1.5KE300CA A0G compare to the 1.5KE300A in terms of packaging and delivery format?
The 1.5KE300CA A0G uses the same DO-201 package as the base 1.5KE300A but is supplied in 500-unit ammo box packaging (denoted by "A0G"), whereas standard 1.5KE300A is typically offered in 1250-unit tape-and-reel. The "C" suffix confirms bidirectional configuration, and "A" indicates tightened VBR tolerance (±5%), distinguishing it from the broader-tolerance "1.5KE300" variant.
1.5KE300CA A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-201
1.5KE300CA A0G FAQ
1.How can I place an order for 1.5KE300CA A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE300CA A0G 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 1.5KE300CA A0G reliable?
The price and inventory of 1.5KE300CA A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE300CA A0G is usually 5 days.
3.What payment methods are accepted for 1.5KE300CA A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE300CA A0G transactions.
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4.How is shipping managed for 1.5KE300CA A0G?
1.5KE300CA A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE300CA A0G 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 1.5KE300CA A0G?
For technical support, including 1.5KE300CA A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE300CA A0G requirements.
6.How does Aetrix verify that 1.5KE300CA A0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE300CA A0G 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 1.5KE300CA A0G meets industry standards.
7.What is the process for return or replacement of 1.5KE300CA A0G?
All 1.5KE300CA A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE300CA A0G, 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 1.5KE300CA A0G part is unused and in its original packaging.
Return procedure for 1.5KE300CA A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE300CA A0G Tags
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