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Diodes Incorporated 1.5KE200CA-T
- Part No.:
- 1.5KE200CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE200CA-T.pdf
- Description:
- TVS DIODE 171VWM 274VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,110
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Product details
Overview
1.5KE200CA-T from Diodes Incorporated is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, rated for 1500W peak pulse power, 200V reverse standoff voltage (VRWM), and clamping voltage of 274V at 5.5A peak pulse current. It provides robust ESD and surge protection for DC power rails and signal lines in industrial power supplies and telecom interfaces.
For engineers reviewing the 1.5KE200CA-T datasheet, 1.5KE200CA-T pinout, 1.5KE200CA-T application, or 1.5KE200CA-T equivalent, this device is selected for high-energy transient suppression where fast response (<1 ns), low clamping ratio (1.37× VRWM), and bidirectional symmetry are required in harsh electrical environments.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, triggering when transient voltage exceeds its 200V standoff level and clamping to ≤274V within nanoseconds. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5 µA at VRWM).
The DO-201 axial package supports high thermal dissipation (5.0W steady-state at TL = 75°C) and withstands 200A non-repetitive forward surge current. Bidirectional construction eliminates polarity dependency in AC-coupled or floating circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms pulse - sustains high-energy surges per IEC 61000-4-5 Level 4 without failure |
| Reverse Standoff Voltage | 200V - maximum continuous DC or RMS operating voltage before clamping initiates |
| Clamping Voltage | 274V at 5.5A IPP - limits downstream circuit voltage during surge, enabling 30% margin below 380V system insulation rating |
| Breakdown Voltage | 190–210V at 1mA test current - tight 5% tolerance ensures predictable turn-on across production lots |
| Leakage Current | <5 µA at 200V - negligible standby power loss and no interference with high-impedance sensing nodes |
| Response Time | <1.0 ns - reacts faster than most microcontroller I/O protection structures, preserving signal integrity |
| Operating Temperature | −55°C to +175°C - qualified for under-hood automotive and industrial ambient extremes |
Pinout & Package
DO-201 axial-leaded package with two terminals: anode and cathode. Marking for bidirectional variant (suffix 'C') omits cathode band; polarity is non-functional. Leads are tin-finished, solderable per MIL-STD-202 Method 208, and compliant with J-STD-020 moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during negative transients | Shunts reverse-polarity surges to ground in AC or floating systems; symmetric with cathode for bidirectional operation |
| Cathode | Current entry point during positive transients | Shunts positive surges to ground; identical electrical behavior to anode due to bidirectional construction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable VBR over temperature and lifetime, reducing drift to ≤0.108%/°C for precise clamping |
| Bidirectional configuration | Eliminates need for polarity-aware layout; protects AC lines, differential buses, and ungrounded sensors without external diodes |
| RoHS-compliant & halogen-free | Meets EU Directive 2015/863/EU with Br+Cl <1500 ppm and Sb <1000 ppm - supports green manufacturing and end-of-life compliance |
| 1.12g mass & UL 94V-0 epoxy | Enables mechanical stability in vibration-prone enclosures while meeting flammability safety standards for industrial equipment |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Surge Suppression |
|---|---|
Use Scenario: 24–48V DC input stage of programmable logic controllers exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt TVS element placed upstream of DC-DC converter input capacitor. Use Value: Clamps 1500W surges to 274V, preventing overvoltage damage to primary-side MOSFETs and controller ICs. |
Use Scenario: T1/E1 line interface cards handling long-distance copper runs subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level bidirectional surge limiter on tip/ring pair before transformer coupling. Use Value: Symmetric clamping preserves signal integrity on full-duplex lines without introducing DC bias or polarity mismatch. |
| Automotive Body Control Module (BCM) CAN Bus Protection | AC-DC Adapter Secondary-Side Overvoltage Clamp |
Use Scenario: CAN FD transceiver protection in BCM modules where battery transients (load dump, jump start) couple onto bus lines. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between CANH/CANL and chassis ground. Use Value: Sub-1ns response prevents transceiver latch-up during ISO 7637-2 Pulse 5a (100V/100ms), maintaining bus communication integrity. |
Use Scenario: Secondary-side output rail of 12V wall adapters subjected to open-load or feedback-loop faults causing overvoltage. IC Role / Device Role / Timing Role: Crowbar-style clamp across output capacitor to limit voltage excursion during regulation failure. Use Value: 274V clamping protects connected USB peripherals and downstream LDOs rated for ≤30V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Same 200V VRWM and bidirectional design, but 600W rating (SMB package) vs. 1500W (DO-201) | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for industrial mains-connected inputs | Select when board space is constrained and surge energy is ≤600W; verify thermal derating in enclosed enclosures |
| 1.5SMC200CA | Same 1500W rating and 200V VRWM, but SMC (DO-214AB) surface-mount package | Requires PCB reflow assembly; lacks axial leads for through-hole prototyping or high-vibration mechanical retention | Choose for automated SMT production where DO-201 lead forming or manual soldering is impractical |
Compared with SMBJ200CA and 1.5SMC200CA, the 1.5KE200CA-T delivers higher surge robustness in a through-hole package ideal for high-reliability industrial and automotive service replacements, while offering simpler mechanical mounting and superior thermal path via axial leads.
Availability
1.5KE200CA-T is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line interface surge suppression, automotive body control module (BCM) CAN bus protection, and AC-DC adapter secondary-side overvoltage clamping requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE200CA-T 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and sales operations across Asia, the Americas, and Europe.
This part belongs to the 1.5KE series of high-power axial TVS diodes, engineered for cost-effective, high-reliability transient suppression in industrial, telecom, and automotive power systems where legacy through-hole assembly remains critical.
FAQ
What is the difference between 1.5KE200CA-T and 1.5KE200A-T?
The 'C' suffix denotes bidirectional construction, meaning both terminals behave identically under positive and negative transients. In contrast, 1.5KE200A-T is unidirectional, with a defined cathode band and asymmetric clamping-only protecting against positive surges unless paired with another diode. Bidirectional use simplifies layout for AC or floating circuits and avoids polarity errors during assembly.
Can 1.5KE200CA-T be used in place of a MOV for surge protection?
No-it is not a direct MOV replacement. MOVs have higher joule ratings and slower response (>25 ns), making them suitable for bulk AC mains filtering. The 1.5KE200CA-T offers faster clamping (<1 ns) and tighter voltage control but lower total energy absorption per event. It is best deployed downstream of MOVs as a precision secondary clamp or standalone for low-to-moderate energy DC transients.
Is 1.5KE200CA-T compliant with AEC-Q200 for automotive use?
No-the datasheet states that AEC-Q200 qualification requires specific change control and PPAP capability, which must be requested separately from Diodes Incorporated. Standard 1.5KE200CA-T is not pre-qualified to AEC-Q200; automotive-grade variants (e.g., with "-Q" suffix) would carry explicit qualification documentation and traceability.
What is the maximum allowable PCB trace length between 1.5KE200CA-T and protected node?
To maintain sub-1ns response, keep trace inductance below 10 nH. For typical FR-4, this means total trace length (including return path) should not exceed 25 mm. Use wide, short traces with adjacent ground plane; avoid vias near the device. Longer paths increase clamping voltage due to L·di/dt, degrading protection effectiveness.
1.5KE200CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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
1.5KE200CA-T FAQ
1.How can I place an order for 1.5KE200CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE200CA-T 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 1.5KE200CA-T reliable?
The price and inventory of 1.5KE200CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE200CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE200CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE200CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE200CA-T?
1.5KE200CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE200CA-T 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 1.5KE200CA-T?
For technical support, including 1.5KE200CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE200CA-T requirements.
6.How does Aetrix verify that 1.5KE200CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE200CA-T 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 1.5KE200CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE200CA-T?
All 1.5KE200CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE200CA-T, 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 1.5KE200CA-T part is unused and in its original packaging.
Return procedure for 1.5KE200CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE200CA-T Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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