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Taiwan Semiconductor Corporation 1.5KE15CA R0G
- Part No.:
- 1.5KE15CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15CA R0G.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,496
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Product details
Overview
1.5KE15CA R0G 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 AEC-Q101 qualification for automotive use. It protects power rails and signal lines against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE15CA R0G datasheet, 1.5KE15CA R0G pinout, 1.5KE15CA R0G application, or 1.5KE15CA R0G equivalent, key selection criteria include bidirectional clamping capability, 10/1000μs surge rating, low dynamic impedance, junction temperature range (−55°C to +175°C), and compliance with automotive ESD and EFT immunity standards.
Technical Context
The 1.5KE15CA R0G is a bidirectional TVS diode designed for high-energy transient suppression in automotive and industrial environments. It operates symmetrically in both polarities, with breakdown voltage VBR = 13.5–16.5V at 1mA test current and clamps to ≤22.0V at 71A peak impulse current under 10/1000μs waveform.
It meets ISO 7637-2 for automotive load dump and switching transients, features <1μA leakage at 12.1V, and exhibits a temperature coefficient of VBR of 0.084%/°C. Its DO-201 package supports lead-free soldering per J-STD-002 and passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12.1 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 13.5 / 16.5 V - Breakdown occurs within this range at 1mA, defining reliable turn-on threshold |
| VC @ IPP | 22.0 V - Clamped voltage during 71A 10/1000μs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling capacity, enabling robust protection against severe transients |
| IPP | 71 A - Maximum non-repetitive peak surge current supported under standard waveform |
| TJ max | +175 °C - Maximum junction temperature, supporting operation in under-hood automotive environments |
| Leakage @ VWM | <1 μA - Minimal standby power loss and negligible loading on protected circuit |
Pinout & Package
DO-201 axial-leaded package with cathode band marking for polarity identification; bidirectional symmetry means no functional anode/cathode distinction-both terminals behave identically under reverse or forward transient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Functions as cathode during positive transients and anode during negative transients; marked band indicates conventional cathode orientation only |
| Cathode (unmarked end) | Transient return path (bidirectional) | Functions as anode during positive transients and cathode during negative transients; identical electrical behavior to marked end due to symmetrical construction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or floating DC buses without polarity concerns |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| ISO 7637-2 compliance | Guarantees performance against standardized automotive electrical transients (Pulse 1/2a/2b/3a/3b) |
| Low dynamic impedance | Ensures rapid voltage clamping and minimal overshoot during fast-rising transients (<5ns response) |
| Halogen-free & RoHS | Meets environmental compliance requirements for modern automotive and industrial manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load dump and alternator switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power input to clamp surges before they reach LDOs, MCUs, or CAN transceivers. Use Value: Limits transient voltage to ≤22.0V, preventing latch-up or permanent damage to downstream 3.3V/5V logic powered from the same rail. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from EFT coupling in factory automation systems. IC Role / Device Role / Timing Role: TVS connected between signal line and ground to shunt fast bursts (<5ns rise time) induced by nearby relay switching. Use Value: Maintains signal integrity by suppressing transients before they saturate op-amp inputs or corrupt ADC sampling windows. |
| LED Driver Input Protection | RS-485 Bus Transient Suppression |
Use Scenario: Safeguarding constant-current LED drivers in outdoor lighting against lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Bidirectional TVS placed across bridge rectifier output to absorb repetitive 10/1000μs energy pulses. Use Value: Withstands 1500W peak power without degradation, extending driver lifetime in harsh electromagnetic environments. | Use Scenario: Protecting RS-485 transceivers in building control networks from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted differential-mode across A/B lines and common-mode to ground to suppress both asymmetrical and symmetrical noise. Use Value: Clamps differential surges to ≤22.0V while maintaining signal eye diagram integrity up to 10 Mbps data rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ15CA | Same 15V nominal, DO-214AC (SMA) package, 1.5kW rating, but lower IPP (62.9A) and higher VC (24.4V) | Suitable for space-constrained PCBs; less effective clamping margin than 1.5KE15CA R0G | Select when board area is limited and 2.4V higher clamping voltage is acceptable |
| ON Semiconductor 1.5SMC15CA | Same 15V nominal, DO-214AB (SMC) package, 1.5kW rating, VC = 24.4V at 61.5A | Higher thermal mass than DO-201; better for repetitive surge duty but larger footprint | Prefer for high-cycle industrial applications where thermal dissipation outweighs size constraints |
Compared with SMAJ15CA and 1.5SMC15CA, the 1.5KE15CA R0G delivers tighter clamping (22.0V vs. ≥24.4V), superior surge current handling (71A vs. ≤63A), and AEC-Q101 qualification-making it the optimal choice for automotive-critical power rail protection where voltage margin and reliability are paramount.
Availability
1.5KE15CA R0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface circuits, LED driver input stages, and RS-485 communication nodes requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE15CA R0G 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, with global distribution and AEC-Q101 certification capabilities.
The 1.5KE series was developed specifically for high-reliability transient suppression in automotive and industrial power systems, emphasizing robust surge handling, wide temperature operation, and compliance with ISO 7637-2 and AEC-Q101 standards.
FAQ
What does the 'CA' suffix mean in 1.5KE15CA R0G?
The 'CA' suffix in 1.5KE15CA R0G denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., 1.5KE15A), the CA version has no designated anode or cathode for clamping function and is used where AC signals or floating DC rails require equal protection against positive and negative voltage excursions.
Is 1.5KE15CA R0G AEC-Q101 qualified?
Yes, 1.5KE15CA R0G is AEC-Q101 qualified. The 'R0G' suffix indicates green, halogen-free packaging and confirms compliance with the full AEC-Q101 stress test suite-including temperature cycling, high-temperature operating life, and mechanical shock-making it suitable for automotive under-hood and body-control module applications.
What is the maximum clamping voltage of 1.5KE15CA R0G at rated surge current?
The maximum clamping voltage of 1.5KE15CA R0G is 22.0 V at 71 A peak pulse current under the standard 10/1000μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the DO-201 package of 1.5KE15CA R0G compare thermally to SMC or SMA packages?
The DO-201 package of 1.5KE15CA R0G offers lower thermal resistance than SMA but higher than SMC. Its axial-leaded construction allows direct mounting to heatsinks or copper pours, supporting steady-state power dissipation up to 5 W at 75°C lead temperature-sufficient for intermittent surge duty in automotive and industrial environments where compactness and cost are prioritized over ultra-high thermal performance.
Can 1.5KE15CA R0G be used in place of a unidirectional TVS like 1.5KE15A?
No-1.5KE15CA R0G must not replace 1.5KE15A in unidirectional applications without circuit review. While both share the same breakdown and clamping specs, the CA version conducts in both directions and lacks polarity-dependent blocking behavior. Substituting it for a unidirectional TVS may cause unintended conduction during normal forward bias, leading to excessive leakage or system malfunction.
1.5KE15CA R0G 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:
- Discontinued at Digi-Key
- 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 R0G FAQ
1.How can I place an order for 1.5KE15CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15CA R0G 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 R0G reliable?
The price and inventory of 1.5KE15CA R0G 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 R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE15CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15CA R0G?
1.5KE15CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15CA R0G 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 R0G?
For technical support, including 1.5KE15CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15CA R0G requirements.
6.How does Aetrix verify that 1.5KE15CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE15CA R0G 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 R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE15CA R0G?
All 1.5KE15CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15CA R0G, 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 R0G part is unused and in its original packaging.
Return procedure for 1.5KE15CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15CA R0G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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