1/2W, 1206, Low Resistance Chip Resistor (Lead free / Halogen Free)
1. Scope
This specification applies to3.2mm x 1.6mm size 1/2W, fixed thick film low resistance value chip
resistors rectangular type.
2. Type Designation
RLT1632 - 4 -
□□□□ □
(1)
(2)
(3) (4)
Where
(1) Size No.
(2) Power Rating:
4 = 1/2W
(3) Resistance value: Refer to paragraph 4-1
For example --
Four digits of number
R100 = 0.1Ω
1R00 = 1.0Ω
The “R” shall be used as a decimal point
(4) Resistance tolerance:
F = ±1.0%, G= ±2%, J= ±5%
3. Outline Dimensions
L
a
a
Code Letter
W
Dimension
3.20± 0.20
1.60 ± 0.20
0.60 ± 0.10
0.50 ± 0.25
0.50 ± 0.25
Unit : mm
L
W
t
a
b
t
b
UNLESS OTHERWISE SPECIFIED
TOLERANCES ON
﹕
X
=
±
X.X
=
±
X.XX =
±
ANGLES
±
HOLE DIA.
±
DRAWN
CHECKED
BY
﹕connie
4/3/13
BY
﹕
UNIT
﹕
X
DESIGNED BY
﹕
APPROVED BY
﹕
SCALE
﹕
X
台達電子工業股½有限公司
Delta Electronics, Inc.
THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE
MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION
TITLE :
The Engineering Specification for RLT1632 1/2W
Low Resistance Chip Resistor
DOCUMENT
NO.
SRK540000NH
PAGE 1
PAGE
REV.
A1
OF 9
4. Ratings
4-1 Specification
Table 1
Power Rating*
Resistance Tolerance
Resistance Range
Temperature Coefficient of
Resistance(ppm/℃)
Note*:
1/2 W
1%(F), 2%(G), 5%(J)
0.05Ω ~ <0.1Ω
0 ~ +250
0.1Ω ~ <10Ω
0 ~ +200
Power Rating is based on continuous full load operation at rated ambient temperature of 70℃.
For resistor operated at ambient temperature in excess of 70℃,the maximum load
shall be derated in accordance with the following curve.
100
RATED LOAD(%)
0
-55
70
125
AMBIENT TEMPERATURE(
℃
)
4-2 Rated Voltage
The d.c. or a.c. r.m.s. voltage shall be calculated from the following expression
V
=
P
×
R
Where V
: Rated voltage (V)
P : Rated power (W)
R : Nominal resistance (Ω)
4-3 Operating and Storage Temperature Range
-55 to +125℃
UNLESS OTHERWISE SPECIFIED
TOLERANCES ON
﹕
X
=
±
X.X
=
±
X.XX =
±
ANGLES
±
HOLE DIA.
±
DRAWN
CHECKED
BY
﹕connie
4/3/13
BY
﹕
UNIT
﹕
X
DESIGNED BY
﹕
APPROVED BY
﹕
SCALE
﹕
X
台達電子工業股½有限公司
Delta Electronics, Inc.
THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE
MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION
TITLE :
The Engineering Specification for RLT1632 1/2W
Low Resistance Chip Resistor
DOCUMENT
NO.
SRK540000NH
PAGE 2
PAGE
REV.
A1
OF 9
5. Marking
Each Resistor is marked
with 4 digits code on the protective coating to designate to the nominal
resistance value.
0.05
≦
R
＜10Ω
, Marking 4 digits
EX) 0.05Ω→ R050 , 0.1Ω
→
R100
4.7Ω
→
4R70 , 10Ω
→
10R0
6. Characteristics
6-1 Electrical
Item
Specification and Requirement
Test Method (JIS 5201)
Room temperature
Room temperature +100℃
(1) Applied voltage: 2.5 x rated
voltage
(2) Test time: 5 seconds
(1) Setup as figure 1
(2) Test voltage: 100V
DC
±15V
DC
(3) Test time: 60 + 10 / - 0 seconds
(1) Setup as figure 1
(2) Test voltage: 400V
AC
(rms.)
(3) Test time: 60 + 10 / - 0 seconds
Temperature Coefficient As follow table 1.
of Resistance(ppm/℃)
Short Time Overload
△
R:±1.0%
Without damage by flashover, spark,
arcing, burning or breakdown
Insulation Resistance
Over 100 MΩ on Overcoat layer
face up
Over 1,000 MΩ on Substrate side
face up
Resistance range:±1.0%
Without damage by flashover, spark,
arcing, burning or breakdown
Voltage Proof
Pressure Rod
(Metal)
Measurement Point A
(R=0.5 mm)
Substrate
Over coat Film
Substrate Side
Figure 1 : Measurment Setup
Insulation Plate
Spring
Sample Electrode
Voltage Supply
Metal Block
B
Measurement Point B
A
UNLESS OTHERWISE SPECIFIED
TOLERANCES ON
﹕
X
=
±
X.X
=
±
X.XX =
±
ANGLES
±
HOLE DIA.
±
DRAWN
CHECKED
BY
﹕connie
4/3/13
BY
﹕
UNIT
﹕
X
DESIGNED BY
﹕
APPROVED BY
﹕
SCALE
﹕
X
台達電子工業股½有限公司
Delta Electronics, Inc.
THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE
MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION
TITLE :
The Engineering Specification for RLT1632 1/2W
Low Resistance Chip Resistor
DOCUMENT
NO.
SRK540000NH
PAGE 3
PAGE
REV.
A1
OF 9
6-2
Mechanical
Item
Solderability
Specification and Requirement
The surface of terminal immersed
shall be minimum of 95% covered
with a new coating of solder
△
R: ± 1.0%
Without distinct deformation in
appearance
Test Method (JIS 5201)
Solder bath:
After immersing in flux, dip in
245
±
5℃ molten solder bath for 2
±
0.5 seconds
Resistance to Solder
Heat
Bending Test
Solvent Resistance
(1) Pre-heat: 100~110℃
for 30 seconds
(2) Immersed at solder bath of
270 ± 5℃ for 10 ± 1
seconds
(3) Measuring resistance 1
hour after test
Bending value: 3 mm for 30 ± 1
△
R: ± 1.0%
Without mechanical damage such as seconds
break
Without mechanical and distinct
(1) Solvent: Trichloroethane
damage in appearance
or Isopropyl alcohol
(2) Immersed in solvent at room
temperature for 300 seconds
UNLESS OTHERWISE SPECIFIED
TOLERANCES ON
﹕
X
=
±
X.X
=
±
X.XX =
±
ANGLES
±
HOLE DIA.
±
DRAWN
CHECKED
BY
﹕connie
4/3/13
BY
﹕
UNIT
﹕
X
DESIGNED BY
﹕
APPROVED BY
﹕
SCALE
﹕
X
台達電子工業股½有限公司
Delta Electronics, Inc.
THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE
MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION
TITLE :
The Engineering Specification for RLT1632 1/2W
Low Resistance Chip Resistor
DOCUMENT
NO.
SRK540000NH
PAGE 4
PAGE
REV.
A1
OF 9
6-3 Endurance
Item
Rapid Change of
Temperature
Specification and Requirement
△
R:±1.0%
Without distinct damage in
appearance
Test Method (JIS 5201)
(1) Repeat 5 cycle as follow:
(-55 ± 3℃,30minutes)
→(Room
temperature, 2~3
minutes)
→(+125
± 2℃,30minutes)
→(Room
temperature 2~3
minutes)
(2) Measuring resistance
1 hour after test
(1) Environment condition:
40 ± 2℃,90~95% RH
(2) Applied Voltage: rated voltage
(3) Test period: (1.5 hour ON)
→(0.5
hour OFF) cycled for
total
1,000 + 48 / - 0 hours
(4) Measuring resistance
1 hour after test
(1) Test temperature: 70 ± 3℃
(2) Applied Voltage: rated voltage
(3) Test period: (1.5 hour ON)
→(0.5
hour OFF) cycled for
total
1,000 + 48 / - 0 hours
(4) Measuring resistance
1 hour after test
(1) Store temperature:
-55 ± 3℃ for total
1,000 + 48 / - 0 hours
(2) Measuring resistance
1 hour after test
(1) Store temperature:
+125 ± 2℃ for total
1,000 + 48 / - 0 hours
(2) Measuring resistance
1 hour after test
Moisture with Load
△
R: ±5.0%
Without distinct damage in
appearance
Load Life
△
R: ±5.0%
Without distinct
damage in appearance
Low Temperature Store
△
R: ± 5.0%
Without distinct
damage in appearance
High Temperature Store
△
R: ± 5.0%
Without distinct
damage in appearance
UNLESS OTHERWISE SPECIFIED
TOLERANCES ON
﹕
X
=
±
X.X
=
±
X.XX =
±
ANGLES
±
HOLE DIA.
±
DRAWN
CHECKED
BY
﹕connie
4/3/13
BY
﹕
UNIT
﹕
X
DESIGNED BY
﹕
APPROVED BY
﹕
SCALE
﹕
X
台達電子工業股½有限公司
Delta Electronics, Inc.
THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF Delta Electronics, Inc.
AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE
MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION
TITLE :
The Engineering Specification for RLT1632 1/2W
Low Resistance Chip Resistor
DOCUMENT
NO.
SRK540000NH
PAGE 5
PAGE
REV.
A1
OF 9
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