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Taiwan Semiconductor Corporation 1.5KE20CA A0G
- Part No.:
- 1.5KE20CA A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE20CA A0G.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,667
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Product details
Overview
1.5KE20CA A0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 20V nominal breakdown voltage (VBR min 18.0V, max 22.0V), 16.2V working stand-off voltage (VWM), and 29.1V clamping voltage (VC) at 54A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE20CA A0G datasheet, 1.5KE20CA A0G pinout, 1.5KE20CA A0G application, or 1.5KE20CA A0G equivalent, this part delivers AEC-Q101-qualified surge immunity, sub-5ns response time for bidirectional clamping, low dynamic impedance, and RoHS/halogen-free compliance - critical for ESD and inductive switching protection in harsh environments.
Technical Context
The 1.5KE20CA A0G operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±18.0V in both polarities. Its 1500W peak pulse power rating (10/1000μs waveform) and 54A maximum peak impulse current (IPP) enable robust protection of 12V/24V automotive subsystems without latch-up or degradation under repeated transients.
Designed for unclamped operation up to 16.2V DC, it exhibits ≤1μA blocking leakage at VWM and a temperature coefficient of 0.090%/°C for VBR stability across –55°C to +175°C junction range. The DO-201 package supports lead-free soldering per J-STD-002 and meets UL 94V-0 flammability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 18.0V / 22.0V - Ensures reliable avalanche conduction onset within tight tolerance for consistent clamping threshold |
| VWM | 16.2V - Maximum continuous DC operating voltage before significant leakage; safe margin below VBR |
| VC @ IPP | 29.1V at 54A - Clamped voltage during worst-case 10/1000μs surge; defines protected circuit's maximum overvoltage stress |
| PPK | 1500W - Peak pulse power handling capability per JEDEC standard; validates survivability against ISO 7637-2 pulses |
| Response Time | <5.0ns - Bidirectional turn-on delay from 0V to VBR; critical for suppressing fast EFT and ESD events |
| TJ max | +175°C - Enables deployment in under-hood automotive locations and high-ambient industrial enclosures |
| ID @ VWM | <1μA - Ultra-low leakage preserves battery life and signal integrity in always-on circuits |
Pinout & Package
DO-201 axial-leaded package with cathode band marking for polarity identification. Bidirectional construction means no anode/cathode distinction; terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during positive or negative surges |
| Cathode (unmarked end) | Transient return path (bidirectional) | Functionally identical to anode; symmetrical clamping ensures equal protection in both directions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) requirements |
| Low dynamic impedance | Enables sharp voltage clamping with minimal overshoot during fast-rising transients (e.g., >1kV/μs) |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
| Pure tin plating | Ensures solderability and whisker resistance per JESD201 Class 2, supporting lead-free reflow processes |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12V/24V supply lines in body control modules (BCM), lighting ECUs, and infotainment head units from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point to shunt transients before reaching LDOs, MCUs, and CAN transceivers. Use Value: Limits voltage excursion to ≤29.1V during ISO 7637-2 Pulse 1 (–100V/100ms), preventing latch-up or permanent damage to downstream silicon. | Use Scenario: Safeguarding PLC analog input cards and servo drive power inputs against inductive kickback from solenoids, contactors, and relay coils. IC Role / Device Role / Timing Role: Bidirectional TVS placed across AC/DC input terminals to absorb reverse-energy spikes during coil de-energization. Use Value: Withstands 54A peak impulse current without degradation, enabling reliable operation in factory automation with frequent switching cycles. |
| LED Streetlight Drivers | Telecom Power Feeds |
Use Scenario: Shielding constant-current LED drivers from lightning-induced surges on outdoor-rated 230VAC mains input and 12–48VDC output rails. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage DC bus to complement upstream MOVs and suppress residual fast transients bypassing bulk protection. Use Value: Sub-5ns response time captures high-frequency components of lightning surges that slower protectors miss, reducing LED string failure rate. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras, wireless APs) from induced surges on Ethernet pairs carrying 48V DC power. IC Role / Device Role / Timing Role: Bidirectional clamping device installed on each powered pair (pins 4–5 and 7–8) to limit differential-mode overvoltage. Use Value: Symmetrical 18–22V VBR ensures balanced clamping on both polarities, preserving data integrity while limiting voltage to <30V during 10/1000μs events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | 600W rating (vs. 1500W); DO-214AA package; 29.2V VC @ 20.1A IPP | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 1 or high-IPP industrial loads | Select only when space-constrained PCB layout prohibits DO-201 and surge energy is ≤600W |
| 1.5SMC20CA | Same 1500W rating but SMC (DO-214AB) package; 29.2V VC @ 52.2A IPP; slightly higher thermal resistance | Surface-mount alternative requiring reflow-compatible footprint; less robust mechanical mounting than axial DO-201 | Choose for automated assembly where through-hole insertion is impractical, accepting minor derating at high ambient temperatures |
Compared with SMBJ20CA and 1.5SMC20CA, the 1.5KE20CA A0G provides superior surge endurance in high-energy automotive and industrial settings due to its higher IPP (54A), lower thermal resistance in DO-201, and AEC-Q101 qualification - making it the preferred choice where reliability under repetitive transients is non-negotiable.
Availability
1.5KE20CA A0G is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, LED lighting systems, and telecom power feeds requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE20CA 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, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The 1.5KE series was engineered specifically for high-reliability transient suppression in automotive power networks and industrial equipment, emphasizing AEC-Q101 compliance, ISO 7637-2 immunity, and robust thermal performance in axial packages.
FAQ
What does the 'CA' suffix indicate in 1.5KE20CA A0G?
The 'CA' suffix in 1.5KE20CA A0G denotes a bidirectional configuration - meaning the device clamps voltage surges equally in both polarities, unlike unidirectional 'A' variants. This makes the 1.5KE20CA A0G ideal for protecting AC-coupled lines, differential buses like RS-485 or PoE, and any circuit where polarity reversal or bipolar transients are expected. Its symmetrical VBR (18.0–22.0V) and VC (29.1V) apply identically in either direction.
Is 1.5KE20CA A0G AEC-Q101 qualified?
Yes, the 1.5KE20CA A0G is AEC-Q101 qualified. Per Taiwan Semiconductor's ordering information, the 'A0G' suffix indicates AEC-Q101-compliant manufacturing and testing - including stress tests for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge. This qualification confirms suitability for automotive powertrain, chassis, and body electronics where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of 1.5KE20CA A0G and at what current is it specified?
The maximum clamping voltage (VC) of the 1.5KE20CA A0G is 29.1V, measured at a peak impulse current (IPP) of 54A under the standard 10/1000μs double-exponential waveform. This value represents the highest voltage the device allows across its terminals during a worst-case transient event, defining the upper voltage stress imposed on downstream components. It is guaranteed across the full operating temperature range and lifetime of the device.
How does the DO-201 package of 1.5KE20CA A0G affect thermal performance compared to surface-mount alternatives?
The DO-201 axial package of the 1.5KE20CA A0G offers lower thermal resistance than comparable SMD packages (e.g., DO-214AB), enabling more efficient heat dissipation during repetitive surge events. With copper pad mounting per JEDEC standards, it sustains 1500W peak power without thermal runaway. Unlike surface-mount variants, DO-201 allows direct heatsinking via lead bending or chassis contact - critical for high-duty-cycle industrial applications where sustained power dissipation matters.
Can 1.5KE20CA A0G be used in place of a unidirectional TVS like 1.5KE20A?
No - the 1.5KE20CA A0G is bidirectional and cannot substitute for unidirectional 1.5KE20A in DC-only circuits with defined polarity, such as single-rail power inputs where forward conduction must be blocked. Using 1.5KE20CA A0G there would allow unintended reverse conduction. However, in AC, differential, or polarity-agnostic applications (e.g., CAN bus, RS-485, PoE), the 1.5KE20CA A0G is the correct choice. Always verify circuit topology before replacement.
1.5KE20CA 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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 56A
- 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
1.5KE20CA A0G FAQ
1.How can I place an order for 1.5KE20CA A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE20CA 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 1.5KE20CA A0G reliable?
The price and inventory of 1.5KE20CA A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE20CA A0G is usually 5 days.
3.What payment methods are accepted for 1.5KE20CA A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE20CA A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE20CA A0G?
1.5KE20CA A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE20CA 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 1.5KE20CA A0G?
For technical support, including 1.5KE20CA A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE20CA A0G requirements.
6.How does Aetrix verify that 1.5KE20CA A0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE20CA 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 1.5KE20CA A0G meets industry standards.
7.What is the process for return or replacement of 1.5KE20CA A0G?
All 1.5KE20CA A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE20CA 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 1.5KE20CA A0G part is unused and in its original packaging.
Return procedure for 1.5KE20CA A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE20CA A0G Tags
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