135
S
ur
fa
ce
M
ou
nt
R
es
is
to
rs
S
ur
fa
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M
ou
nt
Surface Mount
R
es
is
to
rs
Resistors
Part Number
E-24 Series
E-96 Series
Thick Film Chip Resistors
Type MCR Series
∆
How to Order
∆
Resistance Marking
473
1542
0C2
ex. 473: 47x10^3 = 47K
Ω
105: 10x10^5 = 1M
Ω
1R5: 15x10^-1 = 1.5
Ω
0: 0
Ω
3 digit marking for E24
1R00
ex. 1R00: 1
Ω
R470 470m
Ω
R010 10m
Ω
4 digit marking for E241:
Ω
~10m
Ω
ex. 1542: 154x10^2 = 15K4
Ω
4 digit marking for E96
ex.
0C2 (see table)
102x10^2 = 10K2
Ω
3 digit marking for E96 - 0603
• Small size and lightweight with size range per int’l standard.
• Highly stable in auto-placement surface mounting application.
• Compatible with flow and reflow soldering.
∆
Features
• Suitable for lead free soldering.
∆
Applications
• Consumer electronics
• Automotive, industry
• Computer
∆
Soldering Temperature Curve
Typical values (solid line).
Process limits (dotted line).
WAVE soldering.
IR Reflow Soldering
Peak : Less than 245
˚
C
230
˚
C
180
˚
C Pre Heating Zone
150
˚
C
Soldering Zone
0
t (s)
T
(
˚
C
)
90±30s
10 ~ 15s
Heating time
50
250
200
150
100
second wave
0
0
t (s)
200 K/s
2 K/s
200
250
150
100
50
50
100
150
200
2 K/s
5 K/s
250
T
(
˚
C
)
first wave
forced
cooling
10s
235
˚
C to 260
˚
C
100
˚
C to 130
˚
C
Example
MCR
0603
Type
Size
MCR
0201
T: Tape
B: ±0.1%
123 = 12x10^3 LF = Lead Free
0402
C: ±0.25%
= 12k
Ω
0603
D: ±0.5%
0805
F: ±1%
1206
G: ±2%
1210
J: ±5%
2010
2512
LF
123
Resistance Value
Packing
Tolerance
T
J
• Medical equipment
• Telecom equipment
Type
MCR
Thick Film Chip Resistors
Liberty Bell Components, Inc. 11631 Seaboard Circle, Stanton, CA 90680 (888)820-8885
Fax: (888)820-8884 email: sales@libertycomponents.com website: www.libertycomponents.com