face Mount
Surface Mount
sistor
Resistor
CR Series
Wrap-around
terminations for
soldering
Organic Protection
Tin/lead Solder
Wrap-around
terminations for
soldering
Organic Protection
Tin/lead Solder
es
Surface Mount
vailable
·
0 ohm available
Resistor
·
Shorting links available
links available
·
Tolerance down to 0.25%
1.0 ohms to 100M ohms
·
1.0 ohms to 100M ohms
s to 100M ohms
CR Series
erminations
Any resistance
barrier
available within specified range
have
links available
·
Shorting
a nickel
value
layer
Solder terminations have a nickel barrier layer
Any resistance value available within specified range
e down to 0.25%
terminations have a nickel barrier layer
ohm available
·
0
Solder
stance value available within specified range
Tolerance down to 0.25%
Nickel
Thick Film Conductor
Nickel
ical Data
Power
Rating
at
70°C
(watts)
0.1
IRC
5%
Type
Thick Film Conductor
Electrical Data
Tol.
CR0805
Power
Rating
at
2%
70°C
Tol.
(watts)
0.1
Resistance Range (ohms)
Limiting
Thermal
TCR -55°C to
Operating
Resistance Range (ohms)
Limiting
Thermal
Impedance**
Element
TCR -55°C to
Temp.
+125°C
Values
Values
Element
Impedance**
+125°C
Voltage
Range
0.5%
0.5% 0.25% Voltage
0.25%
5%
1%
2%
1%
(°C/watt)
(°C/watt)
(ppm/°C)
(ppm/°C)
(°C)
(volts)
(volts)
Tol.
Tol.
Tol.
Tol.
Tol.
Tol.
Tol.
Tol.
1-50M
1-20M
1-10M
100-1M
100
Operatin
Temp.
Range
(°C)
1-100M
1-100M
CR1206
1-50M
0.25
1-20M
1-50M
1-10M
1-20M
100-1M
1-10M
100-1M
100
200
1-100M
<10Ω 350;
E24 & E96
360
preferred
& E96
E24
10 to
to
200; 100
100Ω
(any value to
preferred
1MΩ 100:
200
200; 100 to
order)
10 to 100Ω
>1MΩ 250
<10Ω 350;
360
-55 to 125
0.25
* For 10 devices mounted on 50x25mm p.c.b. area
1-100M
1-50M
1-20M
1-10M
is
100-1M
** Zerohm available
200
1MΩ 100:
(any value to
order)
-55 to 12
200
ns:
d terminations on CR resistors have good ‘leach’ resistance
They will
Electrical Data
in solder at 260°C for 30
withstand immersion
Contruction:
Thick film resistor material, overglaze and organic protection are screen
s mounted on 50x25mm p.c.b. area
** Zerohm is available
printed on a 96% alumina substrate.
Terminations:
Wrap-around terminations on CR resistors have good ‘leach’ resistance
n:
properties. They will withstand immersion in solder at 260°C for 30
seconds.
sistor material, overglaze and organic protection are screen
Marking:
96% alumina substrate.
is recorded on the primary package or reel.
All relevant information
Thickness:
The thickness of these devices depend on the size of the chip.
The table below shows the standard substrate thickness used
(mm).
>1MΩ 250
STYLE
0805
1206
Thickness:
Planar
0.4
0.5
The thickness of
0.4
these devices depend on the size of the c
Wrap-around
0.5
The
Wrap-around; G =
shows the standard substrate thickness us
table below
Planar Gold.
F=
(mm).
information is recorded on the primary package or reel.
Load at rated power: 1000 hours at 70°C
Shelf life: 12 months at room temperature
Derating from rated power at 70°C
Long term damp heat
Temperature rapid change
STYLE
0805
1206
Planar
0.4
0.5
Actual
Wrap-around
0.4
0.5
Requirements
Maximum
Typical
F = Wrap-around; G = Planar Gold.
2 (5 above 3M3)
1
0.25
0.1
zero at 125°C
ΔR%
ΔR%
ical Data
ΔR%
ΔR%
2
Requirements
1
1
0.25
0.25
Actual
0.25
Typical
0.25
500
Maximum
1
rated power: 1000
to solder
at 70°C
Resistance
hours
heat
ΔR%
ΔR%
2
(5 above 3M3)
2.5
Voltage proof
: 12 months at room temperature
ΔR%
volts
zero at 125°C
2
0.1
General Note
from rated power
make changes in product specification without notice or liability.
IRC reserves the right to
at 70°C
General Note
All information is subject to IRC’s own data and is considered accurate at time of going to print.
m damp heat
TT electronics reserves the right to make changes in product specification without notice or liability.
Wire and Film
is subject to TT electronics’ own data and is considered accurate at time of going to print.
All information
Technologies Division
ΔR%
ΔR%
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
1
A subsidiary of
TT electronics plc
0.25
© TT electronics plc
ture rapid change
1
0.25
10. 11
Surface Mount
Resistor
Surface Mount
Resistor
CR Series
Physical Data
Planar Terminations
C
C
Wrap
Around
Terminations
(3 Faces)
T
A
Res
ist
On T or
op
Face
Res
istor
On T
op
Face
T
B
L
L
W
A
W
Dimensions (Inches and (mm))
Style
0805
1206
L
.079 ± .012
(2.0 ± 0.3)
.126 ± .016
(3.2 ± 0.4)
W
.049 ± .008
(1.25 ± 0.2)
.063 ± .008
(1.6 ± 0.2)
T
.027
(.07)
.027
(.07)
Wrap-around
A
.012 ± .006
(0.3 ± 0.15)
.016 ± .008
(0.4 ± 0.2)
B*
.035
(0.9min)
.067
(1.7min)
Planar
C
.012 ± .004
(0.3 ± 0.1)
.016 ± .006
(0.4 ± 0.15)
Weight (g)
0.009
0.020
* This dimension determines the number of conductors which may pass under the surface mounted device.
APPLICATION NOTES:
Mounting
This chip resistor is ideally suited for handling by automatic methods due to its rectangular shape and the small dimensional tolerances. Electri-
cal connection to a ceramic substrate or to a printed circuit board can be made by reflow soldering of wrap-around terminations (e.g. suffix ‘F’ in
CR0805F). The ‘F’ terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the resistor chip can
be immersed completely in the solder bath for 30 seconds at 260°C. This enables the resistor to be mounted on one side of a printed circuit board
and other wire-leaded components on the other side.
Wire and Film Technologies Division
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
10. 11
Surface Mount
Resistor
Surface Mount
Resistor
CR Series
Ordering Data
Specify type, reference, etc. as indicated in this example of a CR0805F 8.2M ohms 5% resistor with wrap-around
terminations and packed in a plastic bag.
Sample Part No.
IRC Type
CR
CR
0805
F
1005
J
T
Style
0805, 1206
Termination
F = Wrap Around, P = Planar
Resistance Value (EIA 4-digit code)
(≥100Ω - First 3 significant digits plus 4th digit multiplier)
Example: 100Ω = 1000; 1000Ω = 1001, 150,000Ω = 1503
(>100Ω - "R" is used to designate decimal)
Example: 51Ω = 51R0; 1Ω = 1R00; 0.25Ω = R250
Tolerance
F = 1.0%; G = 2.0%; J = 5.0%
*Packaging
T = Tape Pack (8mm tape)
*The preferred methods of packaging are:
Gold terminated chips are packed in waffle boxes, chips with wrap-around
terminations are supplied tape & reel on .8mm tape.
Wire and Film Technologies Division
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
10. 11
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