ELECTRONIC HOBBY KITS & PROJECTS

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Melody, Sound Effect & LED Flasher ICs Remote Control, DTMF Encoder/Decoder Timers, Op-Amps., Audio Power Amp.
Crystals & Resonators CMOS Logic  #OPTO_Couplers
Voltage Regulators & switching power ICs Special Function , MCU related ICs

 

  Melody ,  Sound effect ICs

Board size : 20 x 11 mm
RM 1.00 		 No. TS-088B   Bird Sound COB (Chip On Board)
 One-shot mode.  DC 3V
  Application : Door bell, visitors chime, etc., 
 Schematic (jpg)         

 
 Simple Melody ICs
M-66T-68L   "It's A Small world"
M-66T-19L   "For Alice"    
  
  (64-note ROM,  Vs = 1.3 ~ 3.3V)       
 Datasheet  (pdf)         
RM 0.60 


M-8021    "Ding Dong" door chime IC
  ( Vs = 1.3 ~ 3.3V)       
 Datasheet  (pdf) 
 RM 0.75


M-3561   
4-sound effect  IC   
  ( Vs = 1.3 ~ 3.3V)    
 Datasheet  (pdf)  
RM 1.80
 Related kit
M34-2H  LED flasher IC   (No external parts required)     Schematic
   ( Vs = 1.35 ~ 3.3V, Output current : 25 mA)    Flashing rate : 2 blinks / sec. 1/8 On/Off ratio.
 Drives up to 4 common LEDs or 3 super bright LEDs
 Datasheet  (pdf)      RM 0.65

 

Remote Control Encoders/Decoders,   IR Motion detector,    DTMF ICs

Remote Control Encoders & Decoders
... details & prices

Micro Power Passive InfraRed  (PIR) Motion Detector IC    ... details & prices

DTMF Decoders
(HT9200A, B)
.. details & prices

DTMF Encoders
(CM/MT8870)

.. details & prices

 

Crystals & Resonators

4 MHz      
3-terminal Ceramic resonator   
 (for PIC MCUs)
RM 1.50

455 KHz     
2-terminal Ceramic resonator

 RM 1.00

3.58 MHz      
2-terminal Ceramic resonator   
 (for PIC MCUs)
 RM 1.00



(3*8 mm)

 32.768 KHz   (watch crystal)   
RM 1.00
40 KHz    (for Ultrasonic projects)
RM 2.50 
38 KHz    (for infrared R/C, BA1404 FM stereo transmitter projects)
RM 2.50

 

 HC-49/S 3.579 MHz       4 MHz         8  MHz     10  MHz  

11.059 MHz     12 MHz       20 MHz

RM 1.00

 

Timers & Tone Decoders

NE555 Timer
   RM 0.80

uPD5555 by NEC 
 (CMOS Low Power NE555 Timer) 
  datasheet       (equivalent to : ICL7555,  TS555CN)
    RM 3.00

NE556 Dual Timer
 
( 2X NE555)     RM 1.50

NE567  PLL Tone decoder
   RM 2.00  

 

Op-Amps & Comparators

UA741
 ( Single Op Amp)    
RM 0.90

 

LM348 
 (4  x  UA741 Op Amps)
  RM 4.00
LM358  
( 2 x Op Amp (single supply)  TTL compatible)
 RM 0.80

 MC1458 
 (2 x Op Amp)
 RM 1.90

LM324   
 ( 4 x Op Amp (single supply)  TTL compatible )

RM 1.00


LM393  
 2 x comparators

  RM 1.30

  
LM339   
4 x comparators

  RM 1.30

TL072   
2  x (FET input) Op Amp 
  RM 1.50

 
TL084  
4  x (FET input) Op Amp   
  RM 1.80

 

Audio Power Amps  

 
TBA820     Audio Power amp
  RM 1.50


LM386N     Audio Power amp
  RM 1.60


LA4445
 Stereo Audio Power amp
(5.5W x 2)

  RM 5.50

 

Voltage Regulators & Switching PS ICs   

TL494   

RM 1.65


LM317T
 Adjustable Positive Voltage regulator IC
(1.5 A)     RM 2.20


LM337T  
Adjustable Negative Voltage regulator IC
(1.5 A)        RM 3.60

 

TL431  Programmable Precision Voltage reference / shunt reg.  (2.5 ~ 36V)
block diagram & pin-out (jpg)
Datasheet (pdf)
RM 0.70

Micro Power  
100 mA Voltage Regulator 
Max input : 24V   
Standby current : 3.5uA
HT-7550A-1  +5V  RM 1.00
HT-7533A-1  +3.3V  RM 1.00

Download datasheet here

Low Dropout Voltage Regulator  
1A  (+) Voltage Regulator 
Max input : 18V   
AMS1117-5.0  +5V  RM 1.00
AMS1117-3.3 +3.3V  RM 1.00
AMS1117-ADJ Adjustable  RM 1.00

 

100 mA (+V),
Positive voltage regulators:

78L05,  78L06,  78L08, 78L09,  78L12,  78L15,  78L24
 RM 1.00
100 mA (-V),
Negative voltage regulators:

79L05,  79L09,  79L12,  79L15,   
 RM 1.20

1A  (+V)
Positive voltage regulators:


 7805,  7809,  7812,  7815,  7818,  7824,
 RM 1.10
1A  (-V)
Negative voltage regulators:

7905,   7909,  7912,  7915,  7918,  7924, 
 RM 1.35

 

CMOS Logic  

 
MC14553   3-Digit Counter / Latch    datasheet 
RM 7.50


CD4543  BCD to 7-segment decoder   datasheet
RM 2.00

 

 

4001 -- RM 1.20
4011 -- RM 1.20
4013 -- RM 1.20
4017 -- RM 1.30
4069 -- RM 1.00
4060 -- RM 1.85
4025 -- RM 1.50

4023 -- RM 1.50
4027 -- RM 1.50
4047 -- RM 1.90
4018 -- RM 2.40
4046 -- RM 2.20
4052 -- RM 1.60
4093 -- RM 1.55    

 

Special Functions & MCU Related ICs
 AT89C2051  8-Bit Microcontroller with 2K Bytes Flash ROM  datasheet (229K)  
 RM 5.50

MAX232
Dual RS232 Driver/Receiver
datasheet (TI) (118K)    datasheet (MAXIM) (443K)
  RM 3.00
ULN2003
7 x Darlington drivers

  RM 1.35
ULN2803   
8 x Darlington drivers

  RM 2.50

  HT-1380   MCU serial Clock / Calendar with auto days of month & leap years adj.   datasheet  
RM 2.00

ICL7107    Digital Panel Meter  (LED 7-segment display) datasheet  

  RM 8.50


LM3914
 block diagram   (Bar / Dot) 10 LEDs Display Driver
 (Linear scale)
 RM 3.50

 

LM3915
 block diagram   (Bar / Dot) 10 LEDs Display Driver
(Logarithmic scale)
  RM 3.50


Download datasheet here
     DS1302   MCU serial Clock / Calendar with auto days of month & leap years adj.   datasheet  
RM 1.80

 

OPTO Couplers       How to use Opto Couplers
 

 PC817   
Opto coupler
(LED / Transistor)  

 [Output : NPN transistor]  Datasheet (pdf) in High density 4 pin DIP 

 RM 1.00

 PC123 Opto coupler
 (LED /Transistor)   [Output : NPN transistor]  Datasheet (pdf)      (SO package)
  RM 1.00
MCT2E     
Opto coupler
 LED / NPN Transistor
 (H11A1 = MCT2E) 
6 pin DIP  

   RM 1.00

Opto couplers


 4N25

4N33

 RM 1.00




Opto couplers
MOC3020  --   RM 1.80
MOC3021  --   RM 2.00

MOC3041  --   RM 2.20
 LTV847  Quad Opto coupler

4x PC817 in 14 pin SO package  

 Datasheet (pdf)     
  RM 2.40


Download datasheet here

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