137
Solid-state Timer H3FA
DIP Model Timer for PC Board Use
Provides Contact and Solid-state
Output
Four rated times available:
models suffixed -Aand -SA:1 s, 10 s, 1 min, 10 min;
models suffixed -Band -SB:6 s, 60 s, 6 min, 60 min.
Timer operation may also be controlled through an
external variable resistor.
Timer can be cleaned while mounted on a PC
Board.
Twenty-four-pin IC socket can be used for
mounting the time unit.
Mountable on a 1-inch pitch rack.
Pulse output types also available.
RC
Ordering Information
Operation/resetting system Time-limit contact Time range Surface mounting (with IC socket
or direct mounting on PC Board)
Time-limit operation/power-OFF resetting
Contact output
1sto10min H3FA-A
and external resetting/
Integrating operation/power-OFF resetting
(SPST-NO + SPST-NC)
6sto60min H3FA-B
and external resetting
-
Solid-state output 1sto10min H3FA-SA
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power-OFF resetting
6sto60min H3FA-SB
Instantaneous operation/time-limit resetting
Contact output
1sto10min H3FA-AU
and external resetting (pulse output)
(SPST-NO + SPST-NC)
6sto60min H3FA-BU
Solid-state output 1sto10min H3FA-SAU
6sto60min H3FA-SBU
Note: 1. Specify both the model number and supply voltage when ordering.
2. The desired operation/resetting system is selected by short-circuiting and opening the specified terminals.
Specifications
Time Ranges
Model Rated time Time setting range
H3FA-A 1s 0.1to1s
H3FA-AU 10 s 1to10s
H3FA-SA 1min 0.1to1min
H3FA-SAU 10 min 1to10min
H3FA-B 6s 0.6to6s
H3FA-BU 60 s 6to60s
H3FA-SB 6min 0.6to6min
H3FA-SBU 60 min 6to60min
Note: 1. The above timing range applies to when the internal variable resistor of H3FA is used.
2. The external variable resistor may also be used by opening the terminals connected to the internal variable resistor.