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
Through Hole
-
Monostable Circuit
Adjustable & Monostable
-
PDIP
1
-
-
8
-
-
4.5V
16V
-
-
-
-
0°C
-
70°C
9.81mm
4.57mm
No
-
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

Available in multiples of 2500
2500SR 0.828
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Texas Instruments
Through Hole
-
Timer Circuit
Timer
-
SOIC
1
-
-
8
-
-
4.5V
18V
-
-
-
-
0°C
-
70°C
5mm
1.75mm
No
-
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 3,593.75

SR 1.438 Each (On a Reel of 2500) (ex VAT)

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2500

Available in multiples of 2500
2500SR 1.438
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Texas Instruments
Through Hole
-
Timer Circuit
Timer
-
SOIC
1
-
-
14
-
-
4.5V
18V
-
-
-
-
0°C
-
70°C
5mm
1.75mm
No
-
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 14,375.00

SR 5.75 Each (On a Reel of 2500) (ex VAT)

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2500

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2500SR 5.75
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STMicroelectronics
Surface
-
CMOS Timer
Timer
-
SO
2
-
-
14
-
-
2V
16V
-
-
-
100ns
-40°C
-
125°C
8.75mm
1.65mm
No
-
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 103.50

SR 2.07 Each (In a Pack of 50) (ex VAT)

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50

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50SR 2.07
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DiodesZetex
Surface
-
Precision Timer Circuit
Precision
-
SOIC
1
-
-
8
-
-
4.5V
16V
-
-
-
-
0°C
-
70°C
4.95mm
1.5mm
No
-
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 86.25

SR 3.45 Each (In a Tube of 25) (ex VAT)

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25

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25SR 3.45
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Texas Instruments
Through Hole
-
Timer Circuit
-
-
PDIP
2
-
-
14
-
-
4.5V
16V
-
-
-
-
0°C
-
70°C
19.3mm
4.57mm
No
-
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 80.50

SR 8.05 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 8.05
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Renesas Electronics
Through Hole
-
Programmable Timer Circuit
-
-
PDIP
1
-
-
8
-
-
2V
18V
-
-
-
-
-25°C
-
85°C
10.16mm
4.95mm
RoHS
-
-
-
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 9.20

SR 9.20 Each (ex VAT)

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1

Available in multiples of 1
1SR 9.20
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Texas Instruments
Through Hole
-
Timer Circuit
-
-
PDIP
1
-
-
8
-
-
3V
15V
-
-
-
75ns
-40°C
-
85°C
9.81mm
4.57mm
No
-
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
Through Hole
-
Timer Circuit
Timer
-
SOIC
1
-
-
8
-
-
4.5V
18V
-
-
-
-
0°C
-
70°C
5mm
1.75mm
No
-
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

Available in multiples of 50
50SR 2.093
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Texas Instruments
Through Hole
-
Monostable Circuit
Adjustable & Monostable
-
PDIP
1
-
-
8
-
-
4.5V
16V
-
-
-
-
0°C
-
70°C
9.81mm
4.57mm
No
-
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 6,727.50

SR 134.55 Each (In a Tube of 50) (ex VAT)

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50

Available in multiples of 50
50SR 134.55
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Texas Instruments
Through Hole
-
Timer Circuit
Timer
-
CDIP
1
-
-
8
-
-
4.5V
18V
-
-
-
15ns
-40°C
-
85°C
5mm
1.75mm
No
-
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 46.00

SR 4.60 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 4.60
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Texas Instruments
Surface
-
Timer
-
-
SOIC
1
-
-
8
-
-
2V
15V
-
-
-
75ns
0°C
-
70°C
4.9mm
1.58mm
No
-
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 287.50

SR 5.75 Each (In a Tube of 50) (ex VAT)

Check stock

50

Available in multiples of 50
50SR 5.75
Add to basket
Texas Instruments
Surface
-
Timer Circuit
Timer
-
PDIP
1
-
-
8
-
-
2V
15V
-
-
-
75ns
0°C
-
70°C
9.81mm
4.57mm
No
-
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 15.52

SR 1.552 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 1.552
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onsemi
Surface
-
Timer Circuit
-
-
SOIC
1
-
-
8
-
-
4.5V
16V
-
-
-
-
-40°C
-
85°C
5mm
1.5mm
No
-
-
-
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

Available in multiples of 25
25SR 9.20
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Texas Instruments
Surface
-
Timer Circuit
-
-
SOIC
1
-
-
8
-
-
3V
15V
-
-
-
75ns
-40°C
-
85°C
4.9mm
1.58mm
No
-
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 46.00

SR 4.60 Each (In a Pack of 10) (ex VAT)

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10

Available in multiples of 10
10SR 4.60
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Texas Instruments
Through Hole
-
Programmable Timer Circuit
Programmable
-
PDIP
1
-
-
16
-
-
3V
18V
-
-
-
-
-55°C
-
125°C
19.3mm
4.57mm
No
-
-
-
CD
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 143.75

SR 5.75 Each (In a Pack of 25) (ex VAT)

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25

Available in multiples of 25
25SR 5.75
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Renesas Electronics
Surface
-
Programmable Timer Circuit
-
-
SOIC
1
-
-
8
-
-
2V
18V
-
-
-
-
-25°C
-
85°C
5mm
1.5mm
No
-
10pF
-
ICM
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 177.10

SR 177.10 Each (ex VAT)

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1

Available in multiples of 1
1SR 177.10
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Texas Instruments
Through Hole
-
Timer Circuit
-
-
CDIP
2
-
-
14
-
-
4.5V
18V
-
-
-
15ns
-55°C
-
125°C
19.94mm
1.52mm
No
-
15pF
-
SE
No
-
-
Texas Instruments LMC555CN/NOPB Operational Amplifier, 8-Pin PDIP
Texas Instruments LMC555CN/NOPB Operational Amplifier, 8-Pin PDIP
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RS Stock No.: 197-7336Brand: Texas InstrumentsManufacturers Part No.: LMC555CN/NOPBHSN Code: 85423990

SR 322.00

SR 8.05 Each (In a Tube of 40) (ex VAT)

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40

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40SR 8.05
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Texas Instruments
-
-
Operational Amplifier
-
-
PDIP
-
-
-
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Renesas Electronics CP82C54 CP82C54-10Z Programmable Timer, 6, 24-Pin PDIP
Renesas Electronics CP82C54 CP82C54-10Z Programmable Timer, 6, 24-Pin PDIP
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RS Stock No.: 235-5218Brand: Renesas ElectronicsManufacturers Part No.: CP82C54-10ZHSN Code: 85423990

SR 1,794.00

SR 119.60 Each (In a Tube of 15) (ex VAT)

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15

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15SR 119.60
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Renesas Electronics
Through Hole
-
Programmable Timer
Programmable
-
PDIP
6
-
-
24
-
-
2V
18V
-
-
-
-
0°C
-
70°C
5mm
1.75mm
RoHS
-
-
-
CP82C54
No
-
-