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K1400S1URP
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Product Detailed Parameters
- Description：SIDAC 130-146V 1A UNI DO-214AC
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Breakover：130 ~ 146V
- Current - Breakover：10 µA
- Current - Peak Output：1 A
- Operating Temperature：-40°C ~ 125°C (TJ)
- Package / Case：DO-214AC, SMA
- Supplier Device Package：DO-214AC (SMA)
- Current - Hold (Ih) (Max)：80 mA
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Overview
The Littelfuse K1400S1URP is a high-voltage trigger diode (SIDAC) from the Kxxx0yU series, designed for AC/DC circuit protection. It features a breakover voltage (VBO) of 140 V and a rated repetitive off-state voltage (VDRM) of 120 V. The device supports an RMS on-state current (It RMS) of 1 A and a non-repetitive on-state current of 20 A. It operates within a temperature range of -40°C to +150°C in a DO-214AC (SMB) surface-mount package.
Feature Summary
- Symmetrical bidirectional switching capability for overvoltage protection in AC circuits
- High thermal stability with a maximum operating temperature of +150°C
- Compact surface-mount design suitable for automated PCB assembly
Applications
- Surge protection for telecommunication lines
- Overvoltage protection in consumer electronics
- Triggering elements for thyristor-based protection circuits
Procurement Notes
Verify the specific suffix 'URP' against the official Littelfuse datasheet to confirm tape-and-reel packaging specifications. Ensure the ordering quantity aligns with manufacturer minimum order requirements for reel-packaged components. Cross-reference the Mouser part number 576-K1400S1URP for accurate distributor availability and lead times.
Selection Notes
Select this component when a 140 V breakover threshold is required for bidirectional surge suppression. Compare the 1 A RMS current rating against the peak load currents of the protected circuit. Consider the DO-214AC package dimensions for board space constraints relative to through-hole alternatives like the K1400G.
Part Context
This part belongs to the Teccor K-series SIDAC family, which provides silicon unilateral voltage-triggered switches optimized for rectified AC/DC circuits. The K1400S1URP shares functional characteristics with other K-series devices but differs in its specific breakover voltage and surface-mount packaging configuration.
Replacement Considerations
The through-hole K1400G offers identical electrical parameters but requires different mounting considerations. For direct surface-mount substitution, verify that alternative SIDACs from other manufacturers match the 140 V VBO and 1 A RMS current ratings precisely.
