FIXED METAL FILM RESISTORS
KAMAYA OHM
RN
¥
Features
1. The RN series are formed by depositing Ni-Cr base metal on a
ceramic body by sputtering or vacuum deposit on techniques.
The resistor is protected by several protective coatings to give
excellent resistance to heat and moisture.
2. Extremely stable device, with long life and durability.
3. RN1/6 and RN1/4S are suitable for high density applications.
4. Stability Class : 2%
¥
Dimensions
B
d
H
L
H
B
D
Style
RN1/6
RN1/4S
RN1/4
• Color coding uses 5 bands.
Unit : mm
L
3.2 0.2
6.5 0.5
D
1.8 0.1
2.3 0.2
H
30 3
30 3
d
0.43 0.03
0.6
0.05
*Unit weight/pc.
105mg
212mg
*Values for reference
¥
Part Number Description
Example
Style
Leaded Resistors
RN
1/6
C
1002
F
B
Product Type
Rated Dissipation
1/6
0.167W
1/4S
0.25W
1/4
Rated Resistance
E24, 96 Series
e.g. : 10R7=10.7 ohm
1002=10k ohm
Tolerance on Rated Resistance
F
1%
B
V
VA
H
TA
TB
TL
*Packaging
Bulk (Straight)
Radial Forming
Radial Forming (Kinked)
Horizontal Forming
26 mm Width Tape (Ammo Box)
52 mm Width Tape (Ammo Box)
52 mm Width Tape (Reel)
All Styles
RN1/6
RN1/4S
RN1/4
Temperature Coefficient of Resistance
C
50
´
10
-6
/
°
C
All Styles
*Refer to Tape and Packaging information on pages 68~71.
Some code numbers may be added after packing codes.
50
KAMAYA OHM
FIXED METAL FILM RESISTORS
RN
•
Ratings
Style
RN1/6
RN1/4S
0.25
RN1/4
250
Rated Dissipation Limiting Element Temperature Coefficient
at 70
°
C
Voltage
of Resistance
W
V
10
-6
/
°
C
0.167
200
Rated Resistance Tolerance on Rated
Resistance
Range
Preferred Number
Series
for Resistors
Isolation
Voltage
V
300
500
Category Temperature
Range
°
C
±
50
10 ohm~1M ohm
F(
±
1%)
E96
E24
-55~+155
Note1. Rated Voltage = (Rated Dissipation)
´
(Rated Resistance). (d.c. or a.c. r.m.s. Voltage)
Note2. Limiting Element Voltage can only be applied to resistors when the resistance value is equal to or higher than the critical resistance value.
Note3. Critical Resistance Value is the resistance value at which the rated voltage is equal to the limiting element voltage.
Percentage of the rated dissipation(%)
•
Derating Curve
55/155/56
100
The derated values of dissipation for temperatures in excess of
70
°
C shall be indicated by the following Curve.
•
Climatic Category
Lower Category Temperature
Upper Category Temperature
Duration of the Damp heat, Steady-State Test
-
55
°
C
+
155
°
C
Area of recommended operation
0
-55
70
155
Ambient Temperature(
°
C)
56 days
•
Performance Characteristics
Description
Voltage proof
Variation of resistance
with temperature
Overload
See Ratings Table
D
R
£±
(0.5%
+
0.05
JIS C 5201-1 : 1998
Requirements
Test Methods
Clause 4.7
Clause 4.8
Clause 4.13
V
-
block method
RN1/6, 1/4S
RN1/4
300Va.c.,60s
500Va.c.,60s
No breakdown or flashover
Measuring temperature :
+
20
°
C/
-
55
°
C/
+
20
°
C/
+
155
°
C/
+
20
°
C
The applied voltage shall be 2.5 times of the
rated voltage or twice the limiting
element voltage, whichever is the less severe, 5s.
:5N for 5
~
10s
:10N for 5
~
10s
:2.5N twice
:5N twice
Leaded Resistors
ohm)
No visible damage, legible marking
ohm) No visible damage
ohm) No visible damage
ohm) No visible damage
Tensile
Robustness
Bending
of terminations
Torsion
Solderability
Resistance to soldering
heat
Rapid change of
temperature
Climatic sequence
Damp test, steady state
Endurance at 70
°
C
Endurance at the upper
category temperature
D
R
£±
(0.5%
+
0.05
D
R
£±
(0.5%
+
0.05
D
R
£±
(0.5%
+
0.05
Clause 4.16.2 RN1/6,1/4S
RN1/4
Clause 4.16.3 RN1/6,1/4S
RN1/4
Clause 4.16.4 180
°
C, 2 rotation
Clause 4.17
Clause 4.18
235
°
C, 2s
After immersion into the flux, the
immersion into solder shall be carried out
in Solder bath at 350
°
C for 3.5s.
5 cycles between
-
55
°
C and
+
155
°
C.
Dry/Damp heat(12
+
12h cycle), first cycle./
Cold/Damp heat(12
+
12h cycle), remaining cycle./
D.C.Load.
40
°
C, 95%R.H., 56 days, test a),b) and c) of
Clause 4.24.2.1
In accordance with Clause 4.17.4.5
D
R
£±
(0.5%
+
0.05
ohm)
No visible damage, legible marking
ohm) No visible damage
D
R
£±
(0.5%
+
0.05
D
R
£±
(2%
±
0.1
Clause 4.19
Clause 4.23
ohm) Insulation resistance : R
³
100M ohm
No visible damage
D
R
£±
(2%
±
0.1 ohm) Insulation resistance : R
³
100M ohm
No visible damage, legible marking
D
R
£±
(2%
±
0.1
Clause 4.24
ohm) No visible damage
Insulation resistance : R
³
1G ohm
D
R
£±
(2%
±
0.1
Clause 4.25.1 Rated voltage, 1.5h "ON", 0.5h "OFF",
70
°
C, 1,000h.
Clause 4.25.3 155
°
C, no-load, 1,000h.
ohm) No visible damage
Insulation resistance : R
³
1G ohm
51
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