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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | SSAC / Littelfuse |
| Manufacturer Product Number | THDS4115SB |
| Description | TDR; 15 s; Fixed; 120V AC; 10A; 1A SPST-NO; Single Shot; QC 0.250"; Surface Mount |
| Datasheet | Download Datasheet |
The Littelfuse SSAC THDS4115SB is a solid-state single shot timer module for 120 V AC, with a 10 A solid-state output (100 A inrush). Its delay is fixed at 15 seconds, set at the factory.
Input voltage must be applied before and during timing. A momentary or maintained closure of the initiate switch switches the load on for the set time; opening or reclosing the switch during timing has no effect.
Output: 1A SPST-NO. Off-state leakage about 5 mA and voltage drop about 2.5 V at full load. Repeat accuracy: ±0.5% or 20 ms, whichever is greater. Setting accuracy: Factory calibration ±1%; ±2% over temperature and voltage. Reset time: 150 ms. Supply tolerance: ±20% of nominal; 50/60 Hz. Power: 2 VA.
It is surface mounted and has 0.250 in (6.3 mm) male quick-connect terminals. It operates from -40 to +60 °C and stores from -40 to +85 °C.
| Category | |
| Manufacturer | SSAC / Littelfuse |
| Model | THDS |
| Output Technology | Solid State |
| Timing Function | Single Shot |
| Delay Time | 15 s |
| Timing Adjustment Method | Fixed, factory set |
| Options | 10 A rating |
| Timing Initiate Method | Control Switch |
| Contact Configuration | 1A SPST-NO |
| Load Current (A) | 10 |
| Input Voltage | 120V AC |
| Termination Style | Quick Connect - 0.250" (6.3mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40...+60 °C (-40...+85 °C) |
| Setting Accuracy (%) | Factory calibration ±1%; ±2% over temperature and voltage |
| Repeatability (%) | ±0.5% or 20 ms, whichever is greater |
| Recovery Time (ms) | 150 |
| Maximum Peak Current (A) | 100 |
| Input Operating Range | ±20% of nominal; 50/60 Hz |
| Rated Power | 2 VA |
| Off-State Leakage Current (mA) | 5 |
| On-State Voltage Drop (V) | 2.5 |