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Diodes Incorporated 1.5KE12CA-T
- Part No.:
- 1.5KE12CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE12CA-T.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,891
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Product details
Overview
1.5KE12CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for overvoltage protection of DC power rails and signal lines. It features a 10.2V reverse standoff voltage, 11.4–12.6V breakdown range at 1mA test current, 16.7V max clamping voltage at 90A peak pulse current, and operates from –55°C to +175°C.
For engineers reviewing the 1.5KE12CA-T datasheet, 1.5KE12CA-T pinout, 1.5KE12CA-T application, or 1.5KE12CA-T equivalent, this device is selected for robust surge immunity in automotive body electronics, industrial I/O interfaces, and telecom line protection where fast response (<1 ns), low clamping ratio (VC/VRWM ≈ 1.64), and AEC-Q200-compatible construction are required.
Technical Context
This bidirectional TVS diode functions as a voltage-clamped shunt protector, triggering when transient voltage exceeds its breakdown threshold and diverting surge current to ground. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
Designed for unidirectional or bidirectional configurations, the "C" suffix indicates symmetrical clamping behavior across both polarities. It complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) standards when applied with appropriate PCB layout and series impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W at 1.0 ms 10/1000 µs waveform - sustains high-energy transients without failure |
| Reverse Standoff Voltage (VRWM) | 10.2 V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 11.4–12.6 V @ 1 mA - precise conduction onset for predictable clamping activation |
| Max Clamping Voltage (VC) | 16.7 V @ 90 A IPP - limits protected circuit voltage during worst-case surge |
| Peak Pulse Current (IPP) | 90 A - quantifies maximum surge current it can safely shunt without degradation |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and industrial environments |
| Leakage Current (IR) | ≤5.0 µA @ 10.2 V - minimal standby power loss and signal integrity impact |
Pinout & Package
Package: DO-201 axial-leaded package with transfer-molded epoxy housing (UL 94V-0 rated), 1.12 g weight, tin-finished leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | Connected to protected line; forms symmetrical clamping path with cathode |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Connected to ground or reference rail; completes low-impedance surge path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR tolerance and low IR drift over temperature and lifetime |
| Bidirectional clamping symmetry | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Fast response time (<1 ns) | Clamps transients before downstream ICs experience damaging overvoltage |
| RoHS-compliant, halogen-free "Green" finish | Meets environmental compliance requirements for automotive and industrial end equipment |
| 1500W peak pulse rating | Supports Level 4 IEC 61000-4-5 (4 kV/2 Ω) surge testing with margin |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects 12V supply and LIN bus lines from load dump and inductive switching spikes in vehicle door modules and lighting controllers. IC Role / Device Role: Primary shunt clamp on power rail and communication line inputs. Use Value: Withstands 12V system load dump surges up to 35V/100ms and clamps LIN transceiver pins to ≤16.7V during ESD events. |
Use Scenario: Shields 24V digital input channels from field-wiring induced surges and electrostatic discharge in factory automation systems. IC Role / Device Role: Front-end transient suppressor placed before optocoupler or Schmitt trigger input stage. Use Value: Limits input voltage to safe levels for 24V-rated logic interfaces while maintaining <5 µA leakage at nominal voltage. |
| Telecom Line Interface (POTS/DSL) | Medical Patient Monitor Signal Port |
Use Scenario: Guards analog voice/data lines against lightning-induced surges and AC power cross-talk in legacy telephone infrastructure. IC Role / Device Role: Bidirectional overvoltage clamp on tip/ring pair before line driver/receiver ICs. Use Value: Symmetrical clamping ensures equal protection for both polarities of differential analog signals without DC bias shift. |
Use Scenario: Safeguards isolated analog sensor inputs (e.g., ECG, SpO₂) from ESD and defibrillator-induced transients. IC Role / Device Role: Secondary-level protector after primary isolation barrier, before precision ADC front-end. Use Value: Low clamping voltage (16.7V) prevents saturation of instrumentation amplifiers while supporting 175°C reflow compatibility for sterilizable assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | 600W rating, SMC (DO-214AB) package, lower IPC footprint but reduced surge capacity | Better suited for space-constrained PCBs where 600W surge immunity suffices | Select when board area is critical and peak surge energy does not exceed 600W |
| 1.5SMC12CA | Same 1500W rating and 12V clamping, but SMC package with surface-mount terminals | Requires reflow assembly; lacks axial lead mechanical robustness for high-vibration environments | Choose for automated SMT production where vibration resistance is secondary to throughput |
Compared with SMBJ12CA and 1.5SMC12CA, the 1.5KE12CA-T provides higher mechanical reliability via axial leads and superior surge handling in the same voltage class, making it preferred for under-hood automotive and industrial field wiring where thermal cycling and mechanical stress are dominant failure modes.
Availability
1.5KE12CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controller (PLC) inputs, and telecom line interface designs requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE12CA-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The 1.5KE series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability overvoltage protection in automotive, industrial, and communications infrastructure where robustness, consistency, and regulatory compliance are mandatory.
FAQ
What is the difference between 1.5KE12A and 1.5KE12CA?
The "C" suffix denotes bidirectional construction: 1.5KE12CA clamps symmetrically for both positive and negative transients, while 1.5KE12A is unidirectional and requires correct polarity installation. Both share identical VRWM (10.2V), VBR (11.4–12.6V), and VC (16.7V), but only the CA version protects AC-coupled or floating nodes without external polarity control.
Can 1.5KE12CA-T be used in place of a 12V Zener diode for regulation?
No - this device is optimized for transient suppression, not DC voltage regulation. Its VBR tolerance (±5.3%) and high dynamic impedance above Ipp make it unsuitable for steady-state regulation. It conducts heavily only during surges and exhibits significant leakage drift outside its specified VRWM range; use dedicated Zener or LDO regulators for DC voltage control.
Is the DO-201 package compatible with wave soldering?
Yes - the DO-201 package has tin-finished axial leads qualified per MIL-STD-202 Method 208 and supports wave soldering at peak temperatures up to 260°C for 10 seconds. Its epoxy body meets UL 94V-0 flammability rating, and moisture sensitivity level is rated Class 1 per J-STD-020, eliminating bake requirements prior to soldering.
Does 1.5KE12CA-T meet AEC-Q200 requirements?
While Diodes states that automotive-grade versions of the 1.5KE series are AEC-Q200 qualified and PPAP-capable, the standard 1.5KE12CA-T part number is not explicitly listed as AEC-Q200 certified in DS21503 Rev. 12. For automotive applications requiring formal qualification, contact Diodes or Aetrix for the designated AEC-Q200 variant (e.g., 1.5KE12CAQ-T) with full test reports and change control documentation.
1.5KE12CA-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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 90A
- 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
1.5KE12CA-T FAQ
1.How can I place an order for 1.5KE12CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE12CA-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 1.5KE12CA-T reliable?
The price and inventory of 1.5KE12CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE12CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE12CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE12CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE12CA-T?
1.5KE12CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE12CA-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 1.5KE12CA-T?
For technical support, including 1.5KE12CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE12CA-T requirements.
6.How does Aetrix verify that 1.5KE12CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE12CA-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 1.5KE12CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE12CA-T?
All 1.5KE12CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE12CA-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 1.5KE12CA-T part is unused and in its original packaging.
Return procedure for 1.5KE12CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE12CA-T Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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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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