tear down report of an optical mouse

8/11/2019 Tear down report of an optical mouse

1/9

- Rayyan Sayeed

1MS12EC098

Product Name: ZEN 3D OPTICAL MOUSE

Model: ZOM313

Hardware Platform: PC, Mac

Connectivity Technology: Wired PS/2

(WHICH IS THE MAIN DRAWBACKi.e., it does not use USB)

Optical movement Detection

Dimensions:

6 cm * 12cm * 2.5cm

Warranty period of 1 year

Needs at least Windows 98 O.S.

Compliant with FCC standards

Model: Zen Optical Mouse 313

The Mouse is Made in China.

Not shipped

Discontinued by Manufacturer: Yes, manufacturing stopped in 2009

ZEN Optical Mouse


2/9


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Note: The prices of each component are given when they are bought in bulk. The price may be larger

when each component is bought individually.

Capacitor (C1: 10F)

10F25V - 105C Radial Electrolytic Capacitor

Capacitance: 10F

Voltage Rating: 25V

Manufacturer: JAKEC

Case Size: 5 x 11 mm

Tolerance: 20%

Radial Configuration

Price: 1.20/-

Capacitor (C2: 0.1F)

Capacitance: 0.1F or simply 100nF

Text Code: K105Z20Y5VF5.L2

Ceramic Capacitor

Indication of Capacitance Through MARKING104

Voltage rating: 50V

Lead Spacing: 2.54mm

Dielectric Code: Y5V

Tolerance on Capacitance: +80/ -20%

Temperature range30C to +85C


4/9

Price: 3.85/-

Resistors (R1: 100 and R2: 100)

Carbon Film Fixed Resistor Axial Leaded

Temperature Coefficient : 10 : 350PPM/C

Insulation Resistance : Min. 1,000M

Solderability : Min. 95% coverage

Dielectric Withstanding Voltage : No evidence of flashover, mechanical

damage, arcing or insulation breakdown.

Price: 0.80/-

IC: ATA2188

The IC ATA2188 is an IC produced by ATLab. Basically it is an optical sensor IC

which replaces the TRACK BALL technology of the computer mouse.

Capturing SNAPSHOTS of the scroll surface at 1,700 times per second it

calculates 3-pixel movement per frame to produce 5,100 pixel movements

per second with the internal 6MHz oscillator. With internal 12MHz oscillator,

the sensor captures snapshots of the work surface at 3,400 times per

second, calculates 3-pixel movement per frame, and produce 10,200 pixel

movements per second.

Features:

I. Single 5.0 volt power supply

II.

On chip LED drive TR

III. 6MHz/12MHz selectable internal oscillator included (No additional

OSC needed)

IV. PS/2 interface included (No additional MCU needed)

V. High speed motion detection

VI. 3 Button (Left, Middle, Right) and Scrolling Wheel application


5/9

Applications:

i. Mice for desktop PCs, Workstations, and notebook PCs

ii. Other Integrated input devices

Price: 80/-

LED

Wavelength: 640nm

Operating temperature (c): -30 to 60

Price: 1.5/-

Micro Switches

Product name: 1A 125VAC micro

switches

3 in number (2 function as mouse

buttons and 1 as the scroll button)

Price: 6/- each

Printed Circuit Board

Design: Golden Dot

P/N: GD-SC95P8 REVO.0

Date as printed: 15/11/2005

Dimensions: 1.7inches x 3.1inches


6/9

Price:$0.41 or 25.63

Scroll Wheel

The scroll wheel, its mechanical encoder and the 3rd

micro

switch are like one system that performs efficient

scrolling. The axis of the wheel has a shaft thats directly

connected with the mechanical rotary. The speed of this

rotation and direction is in turn interpreted by the

encoder. To create sufficient amount of friction for good

rolling the scroll wheel has rubber on its outer periphery

Price: 8.4/- (encoder 11mm) 10/- (scroll wheel + rubber)

Lens Assembly

Product name: Lens Assembly

(Solid State Optical Mouse Lens)

Product Code: HDNS-2100-001

Manufacturer: Avago Technologies

Flange: Rectangular

Design Wavelength: 639nm Typically

Lens Material

(INDEX OF REFRACTION) : 1.5818 (-0.0018 / +0.0012)

Price: $0.1672/- or 10.45/-


7/9

Plastic Mouse Case

The mouse case is made of plastic and has a

silvery middle body which gives it a metallic

appearance.

Price: 15/- on an avg.

PS/2 Cable

Product no. : 501114 0000 WY SH

Resource: CY7C639

Length of the wire: 60 inches

Price: 30/-

Screws

4 screws used for holding the plastic casing

firmly

Thread pitch: 0.7mm

Length: 10mm

Screw head: 4mm diameter

Head style: Pan

Price: 0.92/-


8/9

Component NameQuantity Price

(Total)

Capacitor C1: Electrolytic 10F

1

1.20

Capacitor C2: Ceramic 0.1F

1 3.85

Resistor R1: 100 (5% tolerance)

1 0.80

Resistor R2: 100 (5% tolerance)1 0.80

IC: ATA2188

1 80

LED red

1 1.50

1A 125VAC micro switches 3 18

Scroll wheel with its Encoder 1

8.40

Mouse Case: Plastic 1

15

Screws for assembly 4

3.68

PS/2 Cable1

30

Lens Assembly: HDNS-2100-001 (Rectangular)

1

10.45

PCB 1

25.63


9/9

Total cost as evaluated from the above table: 205.31

Cost of assembling, printing logo (sticker) and verification: 25

Hence total cost: 230.31

Conclusion

After stripping the mouse and having listed out its components and their prices

(when bought in bulk, as does the company), we find that the total cost of the

mouse is 230.31

The retail price was 313/- when it was bought on 15/11/2005

The wholesale price: 299/-

So on an overall basis, the price is listed around 35.9% more than the production

cost. Here we must also keep in mind that there is a huge capital involved in:

Setting up the company,

Creating sufficient profits so as to continue with the productions,

Payments of the Non-Technical labor which is involved in maintaining the

inventory data necessary.

References:

http://www.adafruit.com/datasheets/mkseries.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-

2100.pdfhttp://www.electroncomponents.com/0.1uf-Ceramic-Capacitorhttp://www.datasheet-

pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.alibaba.com/product-detail/1a-125vac-

micro-switch_202519439.html?s=phttp://www.farnell.com/datasheets/1716725.pdf

http://www.findchips.com/search/hdns-2100http://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-

2100.pdf http://www.cypress.com/?docID=32733http://www.mouser.inhttp://www.pcshopper.com
http://www.adafruit.com/datasheets/mkseries.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://www.electroncomponents.com/0.1uf-Ceramic-Capacitorhttp://www.electroncomponents.com/0.1uf-Ceramic-Capacitorhttp://www.datasheet-pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.datasheet-pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.datasheet-pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.alibaba.com/product-detail/1a-125vac-micro-switch_202519439.html?s=phttp://www.alibaba.com/product-detail/1a-125vac-micro-switch_202519439.html?s=phttp://www.alibaba.com/product-detail/1a-125vac-micro-switch_202519439.html?s=phttp://www.farnell.com/datasheets/1716725.pdfhttp://www.farnell.com/datasheets/1716725.pdfhttp://www.farnell.com/datasheets/1716725.pdfhttp://www.findchips.com/search/hdns-2100http://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://www.cypress.com/?docID=32733http://www.mouser.in/http://www.mouser.in/http://www.pcshopper.com/http://www.pcshopper.com/http://www.pcshopper.com/http://www.pcshopper.com/http://www.mouser.in/http://www.cypress.com/?docID=32733http://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://www.findchips.com/search/hdns-2100http://www.farnell.com/datasheets/1716725.pdfhttp://www.alibaba.com/product-detail/1a-125vac-micro-switch_202519439.html?s=phttp://www.alibaba.com/product-detail/1a-125vac-micro-switch_202519439.html?s=phttp://www.datasheet-pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.datasheet-pdf.com/datasheet-html/A/T/A/ATA2188_ALab.pdf.htmlhttp://www.electroncomponents.com/0.1uf-Ceramic-Capacitorhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://datasheet.eeworld.com.cn/pdf/HP/233497_HDNS-2100.pdfhttp://www.adafruit.com/datasheets/mkseries.pdf

tear down report of an optical mouse

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