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Taiwan Semiconductor Corporation 1.5KE15CA A0G
- Part No.:
- 1.5KE15CA A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15CA A0G.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,280
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Product details
Overview
1.5KE15CA A0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 15V, working stand-off voltage 12.1V, clamping voltage 22.0V at 71A peak pulse current, and fast response time <5.0ns - used for ESD and surge protection in automotive power rails and industrial I/O interfaces.
For engineers reviewing the 1.5KE15CA A0G datasheet, 1.5KE15CA A0G pinout, 1.5KE15CA A0G application, or 1.5KE15CA A0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 175°C max junction temperature, and AEC-Q101 qualification status.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance across positive and negative transients. Its low dynamic impedance and sub-5ns response ensure effective suppression of fast electrical fast transients (EFT) and ISO 7637-2 pulses without signal distortion.
The device uses silicon avalanche technology with precise VBR tolerance (±5% for 1.5KE15CA), exhibits <1μA leakage above 10V, and maintains stable operation from –55°C to +175°C - enabling robust protection in under-hood automotive and high-temperature industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 13.5V / 16.5V - ensures reliable avalanche conduction onset within tight tolerance for predictable clamping behavior |
| VWM | 12.1V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPP | 22.0V at 71A - peak clamped voltage during 10/1000μs surge, limiting downstream IC stress |
| PPK | 1500W - peak pulse power handling capacity per single 10/1000μs waveform |
| IPP | 71A - maximum non-repetitive peak impulse current the device safely clamps |
| TJMAX | +175°C - enables use in high-ambient-temperature locations like engine control units |
| Response Time | <5.0ns - critical for suppressing nanosecond-scale ESD events before damage occurs |
Pinout & Package
Package: DO-201 axial lead package with cathode band marking; RoHS-compliant, halogen-free molding compound; UL 94V-0 rated; pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | For bidirectional operation, functions as cathode during negative transients - no polarity-sensitive PCB layout required |
| Cathode | Current exit point in forward bias | Marked by band; serves as anode during positive transients - symmetrical terminal functionality enables simplified board design |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPP specs in both directions - eliminates need for dual unidirectional devices or polarity-aware placement |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for ASIL-B system protection |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching transients) - covers full automotive supply-line threat model |
| Low leakage | <1μA at 12.1V - minimizes standby power loss and avoids false triggering in high-impedance sensing circuits |
| High surge rating | 1500W at 10/1000μs - withstands repeated load-dump events in 12V/24V vehicle systems without degradation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from battery load dump and alternator ripple in passenger vehicles. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and ground to clamp transients before they reach sensitive analog front-ends. Use Value: Limits voltage excursion to ≤22.0V during 100V/100ms load dump, preventing latch-up or gate oxide damage in 3.3V/5V logic. | Use Scenario: Safeguarding 4–20mA current-loop sensor inputs against ESD and field wiring surges in factory automation PLC modules. IC Role / Device Role / Timing Role: Placed across input terminals to shunt fast transients while maintaining signal integrity during normal operation. Use Value: Sub-5ns response captures ESD events before propagation into op-amp input stages, preserving measurement accuracy and long-term reliability. |
| LED Driver Output Protection | DC-DC Converter Input Protection |
Use Scenario: Shielding constant-current LED driver outputs from inductive kickback when driving solenoids or relays on shared PCBs. IC Role / Device Role / Timing Role: Connected in parallel with load to absorb reverse-energy spikes generated during switch-off transitions. Use Value: 1500W surge rating handles repetitive 100A inductive spikes without thermal runaway, extending driver MOSFET lifetime. | Use Scenario: Guarding buck converter inputs against ISO 7637-2 Pulse 1 (load dump) and Pulse 3b (capacitive coupling) in telecom power supplies. IC Role / Device Role / Timing Role: Positioned upstream of input filter capacitors to clamp overvoltage before reaching controller ICs and passives. Use Value: Clamping at 22.0V prevents overvoltage stress on 24V-rated input capacitors and avoids controller UVLO lockout during transients. |
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 SMAJ15CA | Same DO-214AC (SMA) package; 1500W rating; VBR = 13.3–16.7V; VC = 24.4V @ 61.5A | Higher clamping voltage (+2.4V) and lower IPP (−9.5A) - may require margin check in high-current surge scenarios | Preferred where SMA footprint is standardized and thermal pad access supports higher sustained power dissipation |
| ON Semiconductor 1.5SMC15CA | DO-214AB (SMC) package; 1500W rating; VBR = 13.3–16.7V; VC = 24.4V @ 61.5A | Larger SMC body increases mounting area and thermal mass but requires larger PCB real estate | Selected when higher mechanical robustness and improved thermal derating are needed in high-vibration environments |
Compared with 1.5KE15CA A0G, SMAJ15CA offers identical surge rating in a smaller surface-mount package but with higher clamping voltage, while 1.5SMC15CA provides better thermal performance in a larger discrete package - choice depends on layout constraints, thermal management strategy, and clamping margin requirements.
Availability
1.5KE15CA A0G is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED driver circuits, and DC-DC converter designs requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for 1.5KE15CA 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 thyristors - headquartered in Hsinchu, Taiwan.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and wide operating temperature range.
FAQ
What does the 'CA' suffix mean in 1.5KE15CA A0G?
The 'CA' suffix in 1.5KE15CA A0G indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., 1.5KE15A), the 1.5KE15CA A0G has identical breakdown and clamping characteristics in either polarity, making it ideal for AC-coupled lines or differential buses where polarity reversal is possible.
Is 1.5KE15CA A0G AEC-Q101 qualified?
Yes, 1.5KE15CA A0G is AEC-Q101 qualified. The 'A0G' ordering code denotes AEC-Q101 qualification and green (halogen-free) compound per IEC 61249-2-21. This certification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD - confirming suitability for automotive powertrain and chassis applications per ASIL-B requirements.
What is the clamping voltage of 1.5KE15CA A0G at its rated surge current?
The clamping voltage of 1.5KE15CA A0G is 22.0V measured at 71A peak pulse current (IPP) under the standard 10/1000μs waveform. This value represents the maximum voltage seen across the device during a full-power transient event and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can 1.5KE15CA A0G replace a unidirectional TVS like 1.5KE15A?
No - 1.5KE15CA A0G cannot directly replace 1.5KE15A because they differ fundamentally in polarity behavior: 1.5KE15A is unidirectional (anode-cathode asymmetric), while 1.5KE15CA A0G is bidirectional (symmetric). Substituting without circuit review risks incorrect clamping during negative transients or unintended forward conduction. Layout and schematic must be verified for bidirectional compatibility before replacement.
What packaging format does 1.5KE15CA A0G ship in?
1.5KE15CA A0G ships in ammo box packaging containing 500 units per box, as indicated by the 'A0G' suffix in the ordering code. This format supports manual and semi-automated assembly processes and is distinct from tape-and-reel (1250 units) versions used for high-speed pick-and-place equipment.
1.5KE15CA 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 74A
- 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
1.5KE15CA A0G FAQ
1.How can I place an order for 1.5KE15CA A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15CA 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 1.5KE15CA A0G reliable?
The price and inventory of 1.5KE15CA A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15CA A0G is usually 5 days.
3.What payment methods are accepted for 1.5KE15CA A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15CA A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15CA A0G?
1.5KE15CA A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15CA 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 1.5KE15CA A0G?
For technical support, including 1.5KE15CA A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15CA A0G requirements.
6.How does Aetrix verify that 1.5KE15CA A0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE15CA 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 1.5KE15CA A0G meets industry standards.
7.What is the process for return or replacement of 1.5KE15CA A0G?
All 1.5KE15CA A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15CA 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 1.5KE15CA A0G part is unused and in its original packaging.
Return procedure for 1.5KE15CA A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15CA A0G Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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