APPROVAL SHEET
RJ SERIES
PRECISION
METAL FILM RESISTORS
PRODUCE
CHECK AND APPROVE
ACCEPTED BY
EM
CE
HONORABLE CUSTOMER
Edison Chen
Charles Chen
Oct. 18, 2022
Oct. 19, 2022
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Page 1 of 9
1. PRODUCT: METAL FILM PRECISION RESISTORS TYPE
2. PART NUMBER: Part number of the precision metal film resistor is
identified by the series, power rating and size code, tolerance,
temperature coefficient, packing type and resistance value.
Example:
RJ
Series
Name
73
Power
Rating
B
Resistance
Tolerance
3
Temperature
Coefficient
T
Packing
Type
(1)
Style: RJ series precision metal film resistors
(2)
Power Rating: see electrical characteristics
(3)
Tolerance:
1004
Resistance
Value
B=±0.1%; C=±0.25%; D=±0.50%; F=±1.0%; G=±2.0%; J=±5.0%;
(4)
T.C.R.: 7=5ppm/oC; 6=10ppm/oC; 5=15ppm/oC; 4=20ppm/ oC;
3=25ppm/ oC; 2=50ppm/ oC; 1=100ppm/ oC; 0>100ppm/ oC;
(5)
Packaging Type: B=BULK/BOX; T=Tape on Box Packing;
F type and M type forming are available upon request
(6)
Resistance Value: 1R00、20R0、1000、1001、1002、3303、1004………
(7)
The part number of jumper is RJ**00T0000 with resistance lower than
15mΩ.
3. Standard applied:
Thunder Enterprise standard: Q/SLC005-2011
Thunder Enterprise standard: Q/SLC006-2011
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4. COLOR BAND-CODE:
COLOR
1st
2nd
3rd
multiple
tolerance
TCR
black
0
0
0
1
brown
1
1
1
10
F(±1.0%)
100ppm/℃
red
2
2
2
102
G(±2.0%)
50ppm/℃
orange
3
3
3
103
15ppm/℃
yellow
4
4
4
104
25ppm/℃
green
5
5
5
105
D(±0.50%)
15ppm/℃
blue
6
6
6
106
C(±0.25%)
10ppm/℃
purple
7
7
7
B(±0.10%)
5ppm/℃
gray
8
8
8
white
9
9
9
golden
10-1
J(±5.0%)
silver
10-2
K(±10%)
Five or six color code rings designate the resistance value and tolerance
and temperature coefficient in accordance with IEC 60062. Temperature
coefficient marked for small TCR on request as the sixth ring in
accordance with IEC 60062.
Digital marking is available upon request.
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5. ELECTRICAL CHARACTERISTICS
Unless otherwise specified, all values are tested at the following condition:
Temperature:
21℃ to 25℃;
Relative humidity: 45% to 70%
RJ**00R0000 is the part number of jumpers with resistance lower than 15mΩ.
6. DERATING CURVE
For resistors working at an ambiance
temperature of 70℃ or above, the
power shall be derated in accordance
with the curve.
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7. DIMENSION
There are two kind of ceramic cores for RJ72, RJ73S and RJ74M so the
tolerance of the dimension of these three type is 3mm instead of 1mm.
The customer will get only one size products from the very beginning
order and so on.
The inner dimension of taping for type size could be adjusted upon the
request of customers.
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8. ENVIRONMENTAL CHARACTERISTICS
(1) Insulation Resistance
IEC 60115-1, 4.6: in V-block for 60 seconds, the test resistance should
be high than 10,000 M Ohm.
(2) Dielectric Withstanding Voltage
IEC 60115-1 4.7:
Place resistors in V-block for 60 Seconds, no
breakdown or flashover.
(3) Temperature Coefficient Test
IEC 60115-1, 4.8: Test of resistors at room temperature and 60°C or
100°C on request above room temperature. Then measure the
resistance. The Temperature Coefficient is calculated by the following
equation and its value should be within the range requested.
Re sistor Temperature Coefficient
R
R0
t
t0
R R0
1
10 6
R0
t t0
= Resistance value under the testing temperature
= Resistance value at the room temperature
= the 2nd testing temperature
= Room temperature
(4) Short Time Overload Test
IEC60115-1 4.13: At 2.5 times rated voltage or 2 times the maximum
working voltage whichever is lower for 5 seconds, the resistor should
be free from defects. The change of the resistance value should be
within ±(0.10%+0.05Ω) as compared with the value before the test.
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(5)
Solderability
IEC 60115-1, 4.17: 235±5°C for 3±0.5 Seconds, there are at least 95%
solder coverage on the termination.
(6) Resistance to soldering heat:
IEC 60115-1, 4.18: 260±3°C for 10±1 Seconds, immersed to a point
3±0.5mm from the body. The change of the resistance value should
be within ±(0.15%+0.05 Ω) as compared with the value before the
test.
(7) Climatic sequence
IEC 60115-1, 4.19:
-55°C to Room Temp. to +155°C to Room Temp.
(5 cycles). The change of the resistance value shall be within
±(0.50%+0.05 Ω) as compared with the value before the test.
(8) Damp Heat Steady State
IEC 60115-1, 4.24:
40±2°C, 90-95% RH for 56 days, loaded with 0.1
times RCWV or the maximum working voltage whichever is lower.
The change of the resistance value should be within ±(0.50%+0.05 Ω)
for tighten tolerance resistors and ±(1%+0.05 Ω) for tighten tolerance
resistors and ±(1%+0.05 Ω) for normal tolerance resistors and small
size and tiny size resistors.as compared with the value before the test.
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(9) Load Life Test
IEC 60115-1, 4.25:
70±2°C at RCWV or the maximum working
voltage whichever is lower for 1,000+48/-0 Hr. (1.5Hr. on, 0.5Hr. off).
The resistors shall be arranged not much effected mutually by the
temperature of others and the excessive ventilation shall not be
performed. The change of the resistance value should be within
±(0.50%+0.05 Ω) for tighten tolerance resistors and normal tolerance
resistors and small size and tiny size resistors and ±(2%+0.05 Ω) for
normal tolerance resistors and small size and tiny size resistors.as
compared with the value before the test.
(10) Accidental Overload Test
IEC 60115-1, 4.26:
4 times RCWV for 1 Minute. No evidence of
flaming or arcing
(11) Intermittent Overload Test .
Apply 4 times rated voltage or 2 times the maximum working voltage
whichever is lower to the resistor at the 1 second on and 2.5 seconds
off cycle for 1000 cycles. The change of the resistance shall be within
±(1.0%+0.05Ω) for tighten tolerance resistors and ±(2%+0.05 Ω) for
normal tolerance resistors and small size and tiny size resistors.
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(12) Surge Pulse Overload
IEC 60115-1, 4.28: Apply 10 pulses with 10 times rated voltage or 2
times the maximum working voltage whichever is lower to the resistor,
the pulses parameter is 10μs/700μs. The change of the resistance
shall be within ± (0.5%+0.05Ω) for tighten tolerance resistors and
±(1%+0.05 Ω) for normal tolerance resistors and small size and tiny
size resistors.
(13) Resistance to Solvent
IEC 60115-1, 4.30: IPA for 5±0.5 Min. with ultrasonic. No deterioration
of coating and color code occurred.
Disclaimer
All products, product specifications and data are subject to change
without notice to improve reliability, function or design or otherwise.
Thunder Precision Resistors makes no warranty, representation or
guarantee regarding the suitability of the products for any particular
purpose or the continuing production of any product to the maximum
extent permitted by applicable law.
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Page 9 of 9
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