THICK FILM CHIP RESISTOR
-
RM SERIES
-
APPLICATIONS
-
Telecommunication Equipments
-
Radio and Tape Recorders, TV Tuners
-
Digital Cameras, Watches, Pocket Calculators
-
Computers, Instruments
-
Medical and Military Equipment
FEATURES
-
Small size and light weight
-
Highly reliable multilayer electrode construction
-
Compatible with all soldering process
DERATIVE CURVE
100
RM04
RM06
RM10
RM12
RM14
RM20
RM25
RM28
RM43
RM45
SCOPE
Applies to all sizes of rectangular-type fixed chip resistors
with Ruthenium base as material.
80
60
CONSTRUCTION
40
RM01
RM02
20
0
0
20
40
60
80
100
120
140
160
AMBIENT TEMPERATURE (C°)
3
4
DIMENSIONS
(INCH)
5
6
SIZE
(MM)
L
(MM)
W
(MM)
T
(MM)
D1
(MM)
D2
(G) (1000PCS)
WEIGHT
0.037
9
8
7
1
2
RM01
01005
0.40±0.02
0.20±0.02
0.13±0.02
0.10±0.03
0.10±0.03
RM02
1
0201
0402
0603
0805
1206
1210
1812
2010
2010
2512
2512
2817
4320
4527
0.60±0.03
1.00±0.05
1.60±0.10
2.00±0.10
3.10±0.10
3.10±0.10
4.50±0.20
5.00±0.10
5.00±0.10
6.34±0.10
6.35±0.10
7.10±0.20
0.30±0.03
0.50±0.05
0.80±0.10
1.25±0.10
1.55±0.10
2.60±0.15
3.20±0.20
2.50±0.15
2.50±0.15
3.10±0.15
3.20±0.15
4.20±0.20
0.23±0.03
0.35±0.05
0.45±0.10
0.50±0.10
0.55±0.10
0.55±0.10
0.55±0.20
0.55±0.10
1.10±0.10
0.55±0.10
1.10±0.10
1.10±0.10
1.10±0.10
1.10±0.10
0.15±0.05
0.20±0.10
0.30±0.20
0.35±0.20
0.50±0.25
0.50±0.25
0.55±0.20
0.60±0.25
0.60±0.25
0.60±0.25
0.60±0.25
0.60±0.20
0.80±0.20
1.10±0.20
0.15±0.05
0.20±0.10
0.30±0.20
0.40±0.20
0.50±0.20
0.50±0.20
0.50±0.20
0.50±0.20
0.50±0.20
0.50±0.20
1.80±0.20
1.80±0.20
2.40±0.20
2.50±0.20
0.150
0.620
2.042
4.368
8.947
15.959
18.126
24.241
35.325
39.448
45.328
43.258
48.698
53.987
Alumina Substrate
4
5
Edge Electrode (NiCr)
Barrier Layer (Ni)
7
Resistor Layer
8
Primary Overcoat (glass)
9
Secondary Overcoat (Epoxy)
RM04
RM06
RM10
RM12
RM14
RM18
RM20
ULTRA HIGH POWER
2
Bottom Electrode (Ag)
3
Top Elctrode (Ag-pd)
6
External Electrode (Sn)
RM20
RM25
ULTRA HIGH POWER
ULTRA HIGH POWER
ULTRA HIGH POWER
ULTRA HIGH POWER
RM25
RM28
RM-43
RM45
11.00±0.30 5.00±0.25
11.60±0.30 6.85±0.25
PART NUMBERING GUIDE
RM
TYPE
RM SERIES
06
DIMENSIONS
01: 01005
02: 0201
04: 0402
06: 0603
10: 0805
12: 1206
14: 1210
18: 1812
20: 2010
25: 2512
28: 2817
43: 4320
45: 4527
J
RESISTANCE
TOLERANCE
B: ±0.1%
C: ±0.25%
D: ±0.5%
F: ±1%
J: ±5%
100
NOMINAL
RESISTANCE
5% - 3 Digit: 1st 2 are
significant, 3rd is
multiplier (10x), “R”
indicates decimal on
value <10ohm,
000 jumper “0”ohm"
.1%, .25%, .5%,
1% - 4 digit: 1st 3 are
significant, 4th is
multiplier (10x), “R”
indicates decimal on
value <100 ohm
CT
PACKAGING
CT: Taping Reel
CTD: Package
Designator page 8.
CTG: Package
Designator page 8.
CTQ: Package
Designator page 8.
-H
FUNCTION CODE
__: Standard
-H: High Power
-U: Ultra High Power
-X: High Precision
___: Standard TCR
50: TCR50 (Optional)
STANDARD ELECTRICAL SPECIFICATIONS
TYPE/
ITEM
RM01
(01005)
RM02
(0201)
POWER RATING
AT 70° JUMPER
RATED CURRENT
1/32W
Jumper: 0.5A
1/20W
Jumper: 1A
1/16W
-55 ~ + 125°C
15V
30V
OPERATING
TEMP.
RANGE
MAX
OPERATING
VOLTAGE
MAX
OVERLOAD
VOLTAGE
RESISTANCE RANGE
±1%
±5%
(PPM/°C)
TCR
10Ω - 1MΩ
0Ω (<50mΩ)
±300
-
±200
-
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
±1500
±1000
±800
±200
±100
±200
±400
-
-55 ~ + 125°C
25V
50V
10Ω - 10MΩ
0Ω
L50 MΩ
1Ω - 10Ω
10.5Ω 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 mΩ
0.01Ω≤ R ≤0.03Ω
0.03Ω< R ≤0.05Ω
0.05Ω < R <1Ω
1Ω≤ R ≤10Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 mΩ
0.01Ω ≤ R ≤0.015Ω
0.015Ω < R ≤0.03Ω
0.03Ω < R <1Ω
1Ω≤ R ≤10Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 MΩ
0.01Ω ≤ R ≤0.015Ω
0.015Ω < R ≤0.03Ω
0.03Ω < R <1Ω
1Ω R 20Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 MΩ
0.01Ω ≤ R ≤0.015Ω
0.015Ω < R ≤0.03Ω
0.03Ω < R <1Ω
1Ω≤ R ≤10Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5Ω - 100MΩ
0Ω
L50 MΩ
0.01Ω ≤ R ≤0.015Ω
0.015Ω < R ≤0.03Ω
0.03Ω < R <1Ω
1Ω≤ R ≤10Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 MΩ
0.01Ω ≤ R ≤0.015Ω
0.015Ω < R ≤0.03Ω
0.03Ω < R <1Ω
1Ω≤ R ≤10Ω
10.1Ω - 10MΩ
10.2MΩ - 20MΩ
20.5MΩ - 100MΩ
0Ω
L50 MΩ
RM04
(0402)
-55 ~ + 155°C
50V
100V
Jumper: 1A
RM06
(0603)
1/10W
-55 ~ + 155°C
75V
150V
Jumper: 1A
RM10
(0805)
1/8W
-55 ~ + 155°C
150V
300V
Jumper: 2A
RM12
(1206)
1/4W
-55 ~ + 155°C
200V
400V
Jumper: 2A
RM14
(1210)
1/3W
-55 ~ + 155°C
200V
500V
Jumper: 2.5A
RM20
(2010)
3/4W
-55 ~ + 155°C
200V
500V
Jumper: 3.5A
RM25
(2512)
1W
-55 ~ + 155°C
250V
500V
Jumper: 4A
HIGH PRECISION ELECTRICAL SPECIFICATIONS
TYPE/
ITEM
POWER RATING AT
70° JUMPER
RATED CURRENT
OPERATING
TEMP.
RANGE
MAX
OPERATING
VOLTAGE
MAX
OVERLOAD
VOLTAGE
RESISTANCE RANGE
±0.1%
-
1/16W
50V
100V
-
10Ω - 1MΩ
1/10W
75V
150V
-
1.02Ω - 10MΩ
10Ω - 1MΩ
1/8W
150V
300V
-
1.02Ω - 10MΩ
10Ω - 1MΩ
1/4W
-55 ~ + 155°C
200V
400V
-
1.02Ω - 10MΩ
10Ω - 1MΩ
-
1.02Ω - 10MΩ
10Ω - 1MΩ
3/4W
200V
400V
-
1.02Ω - 10MΩ
10Ω - 1MΩ
1W
250V
500V
-
1.02Ω - 10MΩ
±200
±200
±100
±200
±100
±200
±100
±200
±100
±200
±100
1.02Ω - 10MΩ
±200
±100
±0.25%
±0.5%
10Ω - 1MΩ
±100
(PPM/°C)
TCR
RM04
(0402)
RM06
(0603)
RM10
(0805)
RM12
(1206)
RM14
(1210)
1/3W
200V
400V
RM20
(2010)
RM25
(2512)
HIGH POWER & ULTRA HIGH POWER RATING ELECTRICAL SPECIFICATIONS
TYPE/
ITEM
POWER RATING AT
70° JUMPER
RATED CURRENT
1/10W
HIGH POWER
1/8W
ULTRA HIGH POWER
1/4W
OPERATING
TEMP.
RANGE
MAX
OPERATING
VOLTAGE
MAX
OVERLOAD
VOLTAGE
RESISTANCE RANGE
±1%
1Ω≤R ≤10Ω
10Ω≤R ≤100Ω
100Ω≤R ≤10M
0.1Ω≤R ≤0.2Ω
0.2Ω≤R ≤10M
10mΩ≤R≤15mΩ
15mΩ<R≤25mΩ
25mΩ<R≤50mΩ
50mΩ<R<0.1Ω
0.1Ω≤R≤10M
10mΩ≤R≤15mΩ
15mΩ<R≤25mΩ
25mΩ<R≤50mΩ
50mΩ<R<0.1Ω
0.1Ω≤R≤10M
(PPM/°C)
TCR
±5%
±400
±200
±100
±200
±100
±800
±600
±400
±200
±100
±700
±400
±300
±150
±100
RM04
(0402)
RM06
(0603)
RM10
(0805)
50V
75V
100V
150V
1/3W
150V
300V
RM12
(1206)
1/3W
HIGH POWER
1/2W
ULTRA HIGH POWER
1/2W
HIGH POWER
3/4W
ULTRA HIGH POWER
1 1/4W
HIGH POWER
1W
HIGH POWER
2W
ULTRA HIGH POWER
2W
HIGH POWER
3W
ULTRA HIGH POWER
4W
HIGH POWER
4W
HIGH POWER
200V
400V
RM14
(1210)
RM18
(1812)
RM20
(2010)
RM25
(2512)
RM28
(2817)
RM43
(4320)
RM45
(4527)
200V
-55 ~ + 155°C
400V
400V
500V
500V
500V
600V
0.1Ω - 10MΩ
1Ω≤R ≤9.76Ω
10Ω≤R ≤10M
10mΩ≤R<15mΩ
15mΩ≤R<50mΩ
50mΩ≤R<10M
10mΩ≤R<20mΩ
20mΩ≤R≤50mΩ
50mΩ<R≤10M
±100
±200
±100
±800
±600
±100
±800
±400
±100
200V
200V
250V
250V
300V
0.1Ω - 10MΩ
0.1Ω - 10MΩ
0.1Ω - 10MΩ
±100
±100
±100
6W
HIGH POWER
300V
600V
Operating Voltage = √(P*R) or Max. operating voltage listed above, whichever is lower
Overload Voltage = 2.5*√(P*R) or Max. overload voltage listed above, whichever is lower
Cal-Chip is capable of manufacturing the optional spec based on customer’s requirement
TC50 ELECTRICAL SPECIFICATIONS
TYPE/
ITEM
POWER RATING AT
70° JUMPER
RATED CURRENT
OPERATING
TEMP.
RANGE
MAX
OPERATING
G VOLTAGE
MAX
OVERLOAD
VOLTAGE
RESISTANCE RANGE
±0.1%
±0.25%
±0.5%
±1%
(PPM/°C)
TCR
RM04
(0402)
1/16W
50V
100V
-
100Ω - 1MΩ
RM06
(0603)
1/10W
75V
150V
RM10
(0805)
1/8W
150V
300V
RM12
(1206)
1/4W
-55 ~ + 155°C
200V
400V
10Ω - 1MΩ
10Ω - 1MΩ
±50
RM14
(1210)
1/3W
200V
400V
RM20
(2010)
3/4W
200V
400V
RM25
(2512)
1W
250V
500V
SOLDERING CONDITION
TEMP (°C)
PEAK: 265°C
260°C/10s
TEMPERATURE (°C)
PRE-HEATING
NATURAL COOLING
260C MAX.
245
220
180
HEAT-UP RATE ≈ 3K/s
COOLING RATE
≈ 6K/s
250°C
230°C
SOLDERING
180°C
150°C
20-40S
150
PRE-HEATING
MAX 20s
60 SECONDS
120 SECONDS
80 SECOND
TIME: SECOND
90s ~ 120s
NUMBER OF REFLOW CYCLES ALLOWED: 3 TIMES
MAX 60s
TIME (SEC.)
5 TO 10 SECONDS MAX.
@PEAK
PREHEAT RECOMMENDATION 150° - 180°C / 60 - 120 SECONDS
SOLDER TEM RECOMMENDATION 230° - 255°C
IR REFLOW SOLDERING
WAVE SOLDERING (FLOW SOLDERING)
-
Time of IR Reflow soldering at maximum temperature point 260°C : 10s
-
Time of wave soldering at maximum temperature point 260°C : 10s
-
Time of soldering iron at maximum temperature point 410°C : 5s
RECOMMENDED LAND PATTERN
Recommended Solder Pad
High Power Recommended Solder Pad
Ultra High Power Recommended Solder Pad
TYPE
RM01
RM02
RM04
RM06
RM10
RM12
RM14
RM20
RM25
A (MM) B (MM) C (MM)
0.14
0.30
0.50
0.90
1.20
2.00
2.00
3.80
3.80
0.18
0.25
0.45
0.60
0.70
0.90
0.90
0.90
1.60
0.25
0.30
0.60
0.90
1.30
1.60
2.80
2.80
3.50
TYPE
RM04-H
RM06-H
RM10-H
RM12-H
RM14-H
RM20-H
RM25-H
A (MM) B (MM) C (MM)
0.5
0.6
1.0
2.2
2.1
3.8
5.0
0.6
1.0
1.2
1.2
1.2
1.5
1.5
0.6
1.0
1.3
1.8
2.8
3.0
3.0
TYPE
RM12-U
RM20-U
RM25-U
RM28-U
RM43-U
RM45-U
A (MM) B (MM) C (MM)
2.10
3.90
2.70
3.40
6.10
6.50
2.00
2.00
2.80
3.30
3.90
4.00
1.9
3.00
3.70
4.70
5.50
7.20
ENVIRONMENTAL CHARACTERISTICS
ITEM
±1% AND BELOW
REQUIREMENT
±5%
JUMPER
TEST METHOD
TEMPERATURE
COEFFICIENT OF
RESISTANCE (T.C.R.)
AS SPEC.
JIS-C-5201-1 4.8
IEC-60115-1 4.8
-55°C~+125°C, 25°C is the reference temperature
SHORT TIME OVERLOAD
±(1.0%+0.05Ω)
±(2.0%+0.05Ω)
<50mΩ
JIS-C-5201-1 4.13
IEC-60115-1 4.13
RCWV*2.5 or Max. Overload voltage; whichever is
lower for 5 seconds, 2 seconds for high power series
JIS-C-5201-1 4.6
IEC-60115-1 4.6
Max. Overload voltage for 1 minute
INSULATION RESISTANCE
≥10G
ENDURANCE
±(1.0%+0.10Ω)
±(2.0%+0.10Ω)
<100mΩ
JIS-C-5201-1 4.25
IEC-60115-1 4.25.1
70±2°C, RCWV for 1000 hours with 1.5 hrs
“ON” and 0.5 hrs “OFF”
JIS-C-5201-1 4.24
IEC-60115-1 4.24
40±2°C, 90~95% R.H., RCWV for 1000 hrs with 1.5 hrs
“ON” and 0.5 hrs “OFF”
JIS-C-5201-1 4.23
IEC-60115-1 4.23.2
at +125/+155°C for 1000 hrs
DAMP HEAT WITH LOAD
±(1.0%+0.10Ω)
±(2.0%+0.10Ω)
<100mΩ
DRY HEAT
±(1.0%+0.05Ω)
±(1.50%+0.05Ω)
<50mΩ
BENDING STRENGTH
±(1.0%+0.05Ω)
±(1.00%+0.05Ω)
<50mΩ
JIS-C-5201-1 4.33
IEC-60115-1 4.33
Bending once for 5 seconds
2010, 2512 sizes: 2mm Other sizes: 3mm
JIS-C-5201-1 4.17
IEC-60115-1 4.17
245±5°C for 3 seconds
SOLDERABILITY
95% MIN. COVERAGE
RESISTANCE TO
SOLDERING HEAT
±(0.5%+0.05Ω)
±(1.00%+0.05Ω)
<50mΩ
JIS-C-5201-1 4.18
IEC-60115-1 4.18
260±5°C for 10 seconds
VOLTAGE PROOF
NO BREAKDOWN OR FLASHOVER
JIS-C-5201-1 4.7
IEC-60115-1 4.7
1.42 times Max. Operating Voltage for 1 minute
LEACHING
INDIVIDUAL LEACHING AREA ≤5% TOTAL LEACHING AREA ≤10%
JIS-C-5201-1 4.18
IEC-60068-2-58 8.2.1
260±5°C for 30 seconds
RAPID CHANGE OF
TEMPERATURE
±(0.5%+0.05Ω)
±(1.00%+0.05Ω)
<50mΩ
JIS-C-5201-1 4.19
IEC-60115-1 4.19
-55°C to +125/+155°C, 5 cycles
RCWV (Rated continuous working voltage)=√(P*R) or Max. Operating voltage whichever is lower.
Storage Temperature: 25±3°C, Humidity < 80%RH
