TSDS Series - Single Shot Timer

Littelfuse Single Shot Relays
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The TSD Series is designed for more demanding commercial and industrial applications where small size and accurate performance are required. The factory calibration for fixed time delays is within 1% of the target time delay. The repeat accuracy, under stable conditions, is 0.5% of the time delay. The TSD Series is rated to operate over an extended temperature range. Time delays of 0.1 seconds to 1000 minutes are available. The output is rated 1A steady and 10A inrush. The modules are totally solid state and encapsulated to protect the electronic circuitry. This product is suitable for many applications, including dispensing, welding, and exposure timing.

Operation (Single Shot)
Input voltage must be applied before and during timing. Upon momentary or maintained closure of the initiate switch, the output energizes for a measured interval of time. At the end of the delay, the output de-energizes. Opening or reclosing the initiate switch during timing has no affect on the time delay. The output will not energize if the initiate switch is closed when input voltage is applied.
Reset: Reset occurs when the time delay is complete and the initiate switch is opened. Loss of input voltage resets the time delay and output.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Storage Temperature (F/C)Time Delay RangeSample CapableCompare
TSDS2110S24VACNO closed during timing-40° to 85°C (-40°F to 185°F)10s fixedNo
TSDS320N24VDCNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 10s externally adjustableNo
TSDS321P24VDCNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 100s externally adjustableNo
TSDS421120VACNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 100s externally adjustableNo
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