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SMT Knowledge
SMT knowledge training materials

SMT knowledge training materials

1, define

SMT: Surface Mount Technology. SMD: surface mount components.

2, SMD components, the difference with the traditional

  AI
  SMT
 
Area
  Large
  Small
 
Volume
  Large
  Small
 
Exposure mode
  Plug-in
  Mount
 
Tin surface touch-mode
   Paste
 
Packaging
  Box
  Disk loading, TRAY plate, tube
 

3, classification (common)

1) Resistance: 61L (L, A, V difference) units 次 TPV storage period of six months, the materials and parts to use three-year period.

Unit Conversion: 1M次 = 10 3 K次 = 10 6 次

A 61 L 0603-101-X
A B C D E F

A: with "A" for the bonded material, non-non-Hoshina.

B: Resistor Code

C: LCD materials and parts

D: Component Size: 0603,0805,1206 (if the exclusion of "125")

E: Resistance value: "101" for 100次 = 10 * 10 1

F: Pin Count: Error: 0603 = 1/16W 0805 = 1/10W 1206 = 1/8W

2) Capacitance: Unit UF / PF TPV storage period of six months, the materials and parts to use three-year period.

Potential conversion: 1F = 10 6 UF = 10 9, NF = 10 12 PF

A 65 L 0603-102-3 2

A B C D E F G

A: with "A" for the bonded material, non-non-Hoshina.

B: Capacitance Code

C: LCD materials and parts

D: Part Size: 0603

E: electric capacity of 104 = 10 * 10 4, = 100000PF = 0.1UF

F: rated voltage

1 = 16V 2 = 25V 3 = 50V 4 = 100V 6 = 250V 7 = 500V 8 = 1KV 9 = 2KV

G: temperature coefficient (characteristics)

1 = NPO 2 = X7R 3 = Z5V 7 = Y5V

Capacity error: C = ㊣ 0.25PF D = ㊣ 0 J = ㊣ 5% K = ㊣ 10% M = ㊣ 20% Z =- 20% +80%

65 L 600 M-102-8-T 65 L 602 K-102-8 T

A B C D E F G

A: Ceramic type capacitors

B: LCD materials and parts

C: 600, said 50V capacitor. 602, said 16V capacitor

D: Capacity Error

E: Electric Capacity

F: Pin Count

G: "T" said Tape Material

3) Bead: 71L TPV storage period of six months, the materials and parts to use three-year period.

71 L 56 A -121-8 T

A B C D E F G

A: Beads

B: LCD materials and parts

C: 56B, 56U 57G ordered Bead Chip Chip Bead 56A

D: Series Code: representing different models

F: Pin Count

G: Tape Material

4) inductor 73L TPV storage period of six months, the materials and parts to use three-year period.

73 L 253-136-TE

A B C D E

A: Fixed inductors B: LCD materials and parts C: "253", said fixed inductor vibration converter

D: In addition to color code inductance (UH) are water yards. E: Manufacturer Code

5) The inverter apparatus 79L TPV storage period of six months, the materials and parts to use three-year period.

79 L L15M-1-CYN

A B C D E

A: Inverter B: LCD materials and parts C: L15M: 15-inch LCD MOINTOR used INVERTER

D: Series yards on behalf of different models. E: Vendor Code.

6) Transformer 80L TPV storage period of six months, the materials and parts to use three-year period.

7) Socket (connector) 33L

8) electrolytic capacitors 67L polarity + - TPV storage period of six months, the materials and parts to use three-year period.

9) IC 56L LCD IC-box, the manufacturer guarantees two days, overtime to be baking. TPV storage period of six months, the materials and parts to use three-year period. (With polarity)

10) 57 L TPV transistor storage period of six months, the materials and parts to use three-year period.

11) Fuse 84 L TPV storage period of six months, the materials and parts to use three-year period.

12) diode 93L TPV storage period of six months, the materials and parts to use three-year period. Polarity. + --

93 L 39 -149

A B C D

A: Diode B: LCD materials and parts C: 39, said switching regulator diode, said diode .64 or .60 that SCHOTTKY fast recovery diode.

13) 715L PCB board (plywood, tin plate) TPV storage period of two months, the materials used for half a year period. Tin-box after multilayer board manufacturers to ensure the week, overtime shall be baked (120 ⊥ state, baked 4 hours) or by manufacturer's instructions.

14) 55L IPA agent (isopropyl alcohol) cleaning stencil period of use 1 year. Allow exposure to 2 days.

15) 55L100-602 Solder Paste: welding parts, at 3 ⊥ ~ 7 ⊥ (refrigerator storage) TPV using the period of three months, use the period of six months.

16) 51 L100 -501 mount adhesives: fixed parts. At 3 ⊥ ~ 7 ⊥ (refrigerator storage) TPV using the period of three months, use the period of six months.

Component Packaging: drive installed, TRAY plate, tube

Plate loaded: tape, adhesive tape.

Tube, TRAY disk component for the IC class.



Gun material specifications

8 * 4 12 * 4 12 * 8 32 * 12 44 * 12 24 * 16

8 * 4, said Tape width 8, the spacing between the parts and components for the four



SMD Process distinction

1, single-sided PCB board process.

2, double-sided PCB board manufacturing process (A side B side solder paste or solder paste dispensing)

3, hybrid process (SMD components and conventional components are used Process) 1

IC type and its matching models

Part Number
  Specifications
  Matching models
 
56L562-8
  GMZAN1
  
56L562-9
  GM5020 (BGA)
  AI780KAA
 
56L562-12
  GMZAN2
  
56L562-15
  ADE2100V2
  Hewlett-Packard (HP)
 
56L562-17
  GM2115 BD
  Compaq (COMPAQ)
 
56L562-25
  GM2115 CG
  AIC562KHDE2
 
56L562-16
  GM5115BYGENESIS
  AIC562KHCM5
 
56L562-13
  TP6732 BY TOPRO
  AI560KCTAC
 
56L562-11
  WFP46200-003BA
  
56L562-19
  GM5120
  AIC780KSDDA1
 
56L562-26
  GM2120 CG
  AIC880KYDAC
 
56L562-20
  GM2120 (V: BD)
  AIC780KDM7/AIC782KSDH3/AIC782KSDH3

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