Timer Circuits

Timer circuits are used to control one or more sequences of events within an electronic system. Timer circuits work by changing the circuit from its current state to another in advance following a set parameter.

Where would I use a timer circuit?

You can use timer circuits for a wide range of basic timing functions, like turning a light on for a certain amount of time or on and o...

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Texas Instruments NE NE555P Monostable Circuit, 1, 8-Pin PDIP
Texas Instruments NE NE555P Monostable Circuit, 1, 8-Pin PDIP
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RS Stock No.: 221-5535Brand: Texas InstrumentsManufacturers Part No.: NE555PHSN Code: 85423990

SR 104.65

SR 2.093 Each (In a Pack of 50) (ex VAT)

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50

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50SR 2.093
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Texas Instruments
Monostable Circuit
-
Through Hole
Adjustable & Monostable
PDIP
-
-
1
-
8
-
16V
4.5V
-
-
-
-
0°C
-
-
70°C
-
9.81mm
No
4.57mm
6.6 mm
-
-
15pF
NE
-
No
Texas Instruments NE555DR Timer Circuit, 1, 8-Pin SOIC
Texas Instruments NE555DR Timer Circuit, 1, 8-Pin SOIC
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RS Stock No.: 197-7392Brand: Texas InstrumentsManufacturers Part No.: NE555DRHSN Code: 85423990

SR 2,070.00

SR 0.828 Each (On a Reel of 2500) (ex VAT)

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2500

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2500SR 0.828
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Texas Instruments
Timer Circuit
-
Through Hole
Timer
SOIC
-
-
1
-
8
-
18V
4.5V
-
-
-
-
0°C
-
-
70°C
-
5mm
No
1.75mm
4 mm
-
-
15pF
NE555DR
-
No
Texas Instruments NE556DR Timer Circuit, 1, 14-Pin SOIC
Texas Instruments NE556DR Timer Circuit, 1, 14-Pin SOIC
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RS Stock No.: 197-7394Brand: Texas InstrumentsManufacturers Part No.: NE556DRHSN Code: 85423390

SR 3,651.25

SR 1.46 Each (On a Reel of 2500) (ex VAT)

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2500

Available in multiples of 2500
2500SR 1.46
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Texas Instruments
Timer Circuit
-
Through Hole
Timer
SOIC
-
-
1
-
14
-
18V
4.5V
-
-
-
-
0°C
-
-
70°C
-
5mm
No
1.75mm
4 mm
-
-
15pF
NE556DR
-
No
STMicroelectronics TS CMOS Timer, 2, 14-Pin SO
STMicroelectronics TS CMOS Timer, 2, 14-Pin SO
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RS Stock No.: 188-9229Brand: STMicroelectronicsManufacturers Part No.: TS556IDTTRHSN Code: 85423990

SR 12,017.50

SR 4.807 Each (On a Reel of 2500) (ex VAT)

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2500

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2500SR 4.807
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STMicroelectronics
CMOS Timer
-
Surface
Timer
SO
-
-
2
-
14
-
16V
2V
-
-
-
-
-40°C
100ns
-
125°C
-
8.75mm
No
1.65mm
4 mm
-
-
10pF
TS
-
No
DiodesZetex NE NE555S-13 Precision Timer Circuit, 1, 8-Pin SOIC
DiodesZetex NE NE555S-13 Precision Timer Circuit, 1, 8-Pin SOIC
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Also available in industry standard packaging
RS Stock No.: 823-4043Brand: DiodesZetexManufacturers Part No.: NE555S-13HSN Code: 85423990

SR 102.35

SR 2.047 Each (In a Pack of 50) (ex VAT)

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50

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50SR 2.047
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DiodesZetex
Precision Timer Circuit
-
Surface
Precision
SOIC
-
-
1
-
8
-
16V
4.5V
-
-
-
-
0°C
-
-
70°C
-
4.95mm
No
1.5mm
3.95 mm
-
-
15pF
NE
-
No
Texas Instruments NE NE556N Timer Circuit, 2, 14-Pin PDIP
Texas Instruments NE NE556N Timer Circuit, 2, 14-Pin PDIP
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RS Stock No.: 528-416Brand: Texas InstrumentsManufacturers Part No.: NE556NHSN Code: 85423290

SR 67.28

SR 2.691 Each (In a Tube of 25) (ex VAT)

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25

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25SR 2.691
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Texas Instruments
Timer Circuit
-
Through Hole
-
PDIP
-
-
2
-
14
-
16V
4.5V
-
-
-
-
0°C
-
-
70°C
-
19.3mm
No
4.57mm
6.35 mm
-
-
15pF
NE
-
No
Renesas Electronics ICM Programmable Timer Circuit, 1, 8-Pin PDIP
Renesas Electronics ICM Programmable Timer Circuit, 1, 8-Pin PDIP
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Also available in industry standard packaging
RS Stock No.: 921-5374Brand: Renesas ElectronicsManufacturers Part No.: ICM7555IPAZHSN Code: 85423390

SR 72.80

SR 7.28 Each (In a Pack of 10) (ex VAT)

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10

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10SR 7.28
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Renesas Electronics
Programmable Timer Circuit
-
Through Hole
-
PDIP
-
-
1
-
8
-
18V
2V
-
-
-
-
-25°C
-
-
85°C
-
10.16mm
RoHS
4.95mm
7.11 mm
-
-
-
ICM
-
No
Texas Instruments TLC TLC555IP Timer Circuit, 1, 8-Pin PDIP
Texas Instruments TLC TLC555IP Timer Circuit, 1, 8-Pin PDIP
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Also available in industry standard packaging
RS Stock No.: 346-7024Brand: Texas InstrumentsManufacturers Part No.: TLC555IPHSN Code: 85423990

SR 8.49

SR 8.49 Each (ex VAT)

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1

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1SR 8.49
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Texas Instruments
Timer Circuit
-
Through Hole
-
PDIP
-
-
1
-
8
-
15V
3V
-
-
-
-
-40°C
75ns
-
85°C
-
9.81mm
No
4.57mm
6.35 mm
-
-
10pF
TLC
-
No
Texas Instruments NE555DR NE555DR Timer Circuit, 1, 8-Pin SOIC
Texas Instruments NE555DR NE555DR Timer Circuit, 1, 8-Pin SOIC
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Also available in industry standard packaging
RS Stock No.: 197-7393Brand: Texas InstrumentsManufacturers Part No.: NE555DRHSN Code: 85423990

SR 55.20

SR 1.104 Each (In a Pack of 50) (ex VAT)

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50

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50SR 1.104
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Texas Instruments
Timer Circuit
-
Through Hole
Timer
SOIC
-
-
1
-
8
-
18V
4.5V
-
-
-
-
0°C
-
-
70°C
-
5mm
No
1.75mm
4 mm
-
-
15pF
NE555DR
-
No
Texas Instruments NE Monostable Circuit, 1, 8-Pin PDIP
Texas Instruments NE Monostable Circuit, 1, 8-Pin PDIP
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RS Stock No.: 866-0199Brand: Texas InstrumentsManufacturers Part No.: NE555PHSN Code: 85423990

SR 104.65

SR 2.093 Each (In a Tube of 50) (ex VAT)

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50

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50SR 2.093
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Texas Instruments
Monostable Circuit
-
Through Hole
Adjustable & Monostable
PDIP
-
-
1
-
8
-
16V
4.5V
-
-
-
-
0°C
-
-
70°C
-
9.81mm
No
4.57mm
6.6 mm
-
-
15pF
NE
-
No
Texas Instruments SE555JG Timer Circuit, 1, 8-Pin CDIP
Texas Instruments SE555JG Timer Circuit, 1, 8-Pin CDIP
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RS Stock No.: 197-7495Brand: Texas InstrumentsManufacturers Part No.: SE555JGHSN Code: 85423990

SR 6,671.72

SR 133.434 Each (In a Tube of 50) (ex VAT)

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50

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50SR 133.434
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Texas Instruments
Timer Circuit
-
Through Hole
Timer
CDIP
-
-
1
-
8
-
18V
4.5V
-
-
-
-
-40°C
15ns
-
85°C
-
5mm
No
1.75mm
4 mm
-
-
15pF
SE555JG
-
No
Texas Instruments TLC TLC555CDR Timer, 1, 8-Pin SOIC
Texas Instruments TLC TLC555CDR Timer, 1, 8-Pin SOIC
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Also available in industry standard packaging
RS Stock No.: 662-4006Brand: Texas InstrumentsManufacturers Part No.: TLC555CDRHSN Code: 85423990

SR 34.96

SR 3.496 Each (In a Pack of 10) (ex VAT)

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10

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10SR 3.496
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Texas Instruments
Timer
-
Surface
-
SOIC
-
-
1
-
8
-
15V
2V
-
-
-
-
0°C
75ns
-
70°C
-
4.9mm
No
1.58mm
3.91 mm
-
-
10pF
TLC
-
No
Texas Instruments TLC555 TLC555CP Timer Circuit, 1, 8-Pin PDIP
Texas Instruments TLC555 TLC555CP Timer Circuit, 1, 8-Pin PDIP
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RS Stock No.: 197-7573Brand: Texas InstrumentsManufacturers Part No.: TLC555CPHSN Code: 85423290

SR 266.80

SR 5.336 Each (In a Tube of 50) (ex VAT)

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50

Available in multiples of 50
50SR 5.336
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Texas Instruments
Timer Circuit
-
Surface
Timer
PDIP
-
-
1
-
8
-
15V
2V
-
-
-
-
0°C
75ns
-
70°C
-
9.81mm
No
4.57mm
4 mm
-
-
10pF
TLC555
-
No
onsemi MC MC1455BDR2G Timer Circuit, 1, 8-Pin SOIC
onsemi MC MC1455BDR2G Timer Circuit, 1, 8-Pin SOIC
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Also available in industry standard packaging
RS Stock No.: 787-8709Brand: onsemiManufacturers Part No.: MC1455BDR2GHSN Code: 85423990

SR 14.84

SR 1.484 Each (In a Pack of 10) (ex VAT)

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10

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10SR 1.484
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onsemi
Timer Circuit
-
Surface
-
SOIC
-
-
1
-
8
-
16V
4.5V
-
-
-
-
-40°C
-
-
85°C
-
5mm
No
1.5mm
4 mm
-
-
-
MC
-
No
Texas Instruments TLC TLC555IDR Timer Circuit, 1, 8-Pin SOIC
Texas Instruments TLC TLC555IDR Timer Circuit, 1, 8-Pin SOIC
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RS Stock No.: 528-410Brand: Texas InstrumentsManufacturers Part No.: TLC555IDRHSN Code: 85423990

SR 230.00

SR 9.20 Each (In a Pack of 25) (ex VAT)

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25

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25SR 9.20
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Texas Instruments
Timer Circuit
-
Surface
-
SOIC
-
-
1
-
8
-
15V
3V
-
-
-
-
-40°C
75ns
-
85°C
-
4.9mm
No
1.58mm
3.91 mm
-
-
10pF
TLC
-
No
Texas Instruments CD CD4536BE Programmable Timer Circuit, 1, 16-Pin PDIP
Texas Instruments CD CD4536BE Programmable Timer Circuit, 1, 16-Pin PDIP
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Also available in industry standard packaging
RS Stock No.: 709-2532Brand: Texas InstrumentsManufacturers Part No.: CD4536BEHSN Code: 85423990

SR 39.44

SR 3.944 Each (In a Pack of 10) (ex VAT)

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10

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10SR 3.944
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Texas Instruments
Programmable Timer Circuit
-
Through Hole
Programmable
PDIP
-
-
1
-
16
-
18V
3V
-
-
-
-
-55°C
-
-
125°C
-
19.3mm
No
4.57mm
6.35 mm
-
-
-
CD
-
No
Texas Instruments TLC TLC551CP Timer Circuit, 1, 8-Pin PDIP
Texas Instruments TLC TLC551CP Timer Circuit, 1, 8-Pin PDIP
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Also available in industry standard packaging
RS Stock No.: 662-4677Brand: Texas InstrumentsManufacturers Part No.: TLC551CPHSN Code: 85423290

SR 111.44

SR 22.287 Each (In a Pack of 5) (ex VAT)

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5

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5SR 22.287
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Texas Instruments
Timer Circuit
-
Through Hole
-
PDIP
-
-
1
-
8
-
15V
1V
-
-
-
-
0°C
75ns
-
70°C
-
9.81mm
No
4.57mm
6.35 mm
-
-
10pF
TLC
-
No
Renesas Electronics ICM Programmable Timer Circuit, 1, 8-Pin SOIC
Renesas Electronics ICM Programmable Timer Circuit, 1, 8-Pin SOIC
Add to parts list
Also available in industry standard packaging
RS Stock No.: 921-5507Brand: Renesas ElectronicsManufacturers Part No.: ICM7555IBAZHSN Code: 85423390

SR 141.16

SR 5.646 Each (In a Pack of 25) (ex VAT)

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25

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25SR 5.646
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Renesas Electronics
Programmable Timer Circuit
-
Surface
-
SOIC
-
-
1
-
8
-
18V
2V
-
-
-
-
-25°C
-
-
85°C
-
5mm
No
1.5mm
4 mm
-
-
10pF
ICM
-
No
Renesas Electronics 8535AGI 8535AGI-31LF Clock Buffer, 20-Pin TSSOP
Renesas Electronics 8535AGI 8535AGI-31LF Clock Buffer, 20-Pin TSSOP
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RS Stock No.: 217-7924Brand: Renesas ElectronicsManufacturers Part No.: 8535AGI-31LFHSN Code: 85423990

SR 3,635.47

SR 49.128 Each (In a Tube of 74) (ex VAT)

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74

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74SR 49.128
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Renesas Electronics
Clock Buffer
-
Surface
-
TSSOP
-
-
-
-
20
-
18V
2V
-
-
-
-
0°C
-
-
70°C
-
5mm
RoHS
1.75mm
4 mm
-
-
-
8535AGI
-
No
Texas Instruments SE SE556J Timer Circuit, 2, 14-Pin CDIP
Texas Instruments SE SE556J Timer Circuit, 2, 14-Pin CDIP
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Also available in industry standard packaging
RS Stock No.: 732-1313Brand: Texas InstrumentsManufacturers Part No.: SE556JHSN Code: 85423290

SR 177.35

SR 177.35 Each (ex VAT)

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1

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1SR 177.35
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Texas Instruments
Timer Circuit
-
Through Hole
-
CDIP
-
-
2
-
14
-
18V
4.5V
-
-
-
-
-55°C
15ns
-
125°C
-
19.94mm
No
1.52mm
7.62 mm
-
-
15pF
SE
-
No