Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Thick Film Chip Resistors / Low Resistance Type
E
1
R
2
J
3
8
4
R
5 6
Q
7
F
8
R
9
2
10
2
11
V
Thick Film
Chip Resistors
Product Code Size, Power Rating
Type: inches
0.125 W
0.1 W
0.2 W
0.125 W
0.25 W
0.25 W
0.33 W
0.25 W
0.5 W
0.5 W
1W
Power R.
Resistance Value
Code
S
Q
0.1 to 0.2
0.22 to 9.1 ✽
Resistance Tolerance
Code
F
G
J
Tolerance
±1%
±2%
±5%
Shown by 3 digits or letters.
(Ex.) R22 : 0.22
Resistance Value
Packaging Methods
Code Packaging Type
Punched Carrier Taping
4mmpitch
Embossed Carrier Taping
4mmpitch
2B : 0402
3R : 0603
3B : 0603
6R : 0805
6B : 0805
8R : 1206
8B : 1206
14R : 1210
14B : 1210
12R : 1812
1TR : 2512
Res. Value
V
X
U
Punched Carrier Taping
2mmpitch
ERJ2BS
ERJ2BQ
ERJ3R/3B
ERJ6R/6B
ERJ8R/8B
ERJ14R/14B
ERJ12R
ERJ1TR
✽2B : 0.22 to 1.0
Thick Film Chip Resistors / Low Resistance Type
ERJ R, B : 0402, 0603, 0805, 1206, 1210, 1812, 2512
ERJ L : 0603, 0805, 1206, 1210, 1812, 2010, 2512
Type:
ERJ 2B, 3R, 3B, 6R, 6B, 8R, 8B,
14R, 14B, 12R, 1TR
ERJ L03, L06, L08, L14, L12,
L1D, L1W
■Features
● Small size and lightweight
● High reliability
Metal glaze thick fi lm resistive element and three layers of electrodes
● Suitable for both refl ow and fl ow sol der ing
● Low Resistance Value
ERJ2BW Type : 47 m to 91 m
ERJ6BW, 8BW Type : 10 m to 100 m
ERJ2BS, 2BQ Type : 0.1 to 1.0
ERJ3R, 3B, 6R, 6B, 8R, 8B, 14R, 14B, 12R, 1TR Type : 0.1 to 9.1
ERJL03, L06, L08 Type : 47 m to 100 m
ERJL14, L12 Type : 20 m to 100 m
ERJL1D, L1W Type : 40 m to 100 m
● Reference Standards
IEC 60115-8, JIS C 5201-8
■Explanation of Part Numbers
● ERJ2BS/2BQ, 3R, 3B, 6R, 6B, 8R, 8B, 14R, 14B, 12R, 1TR Series
Jun. 2008
Thick Film Chip Resistors / Low Resistance Type
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
E
1
R
2
J
3
L
4
1
5
4
6
K
7
J
8
5
9
0
10
M
11
U
12
Thick Film
Chip Resistors
Product Code Size, Power Rating
Type: inches
0.1 W
0.125 W
0.25 W
0.33 W
0.5 W
0.5 W
1W
Power R.
Code
K
U
Resistance Tolerance
Code
F
J
Tolerance
±1%
±5%
Shown by 3 digits or letters.
(Ex.) 50 M:50 m,10C:100 m
Resistance Value
Packaging Methods
Code
V
U
Packaging Type
Punched Carrier Taping
4mmpitch
Embossed Carrier Taping
4mmpitch
ERJL03
ERJL06
ERJL08
ERJL14
ERJL12
ERJL1D
ERJL1W
Std.
20 mto 100 m
Res. Value
L03 : 0603
L06 : 0805
L08 : 1206
L14 : 1210
L12 : 1812
L1D : 2010
L1W : 2512
20 m,22m,33m,
39 m,47m,50m,
100 m
()
✽
✽
✽L03, L06, L08 : 47 mto 100 m
L1D, L1W : 40 mto 100 m
E
1
R
2
J
3
2
4
B
5 6
W
7
G
8
R
9
0
10
4
11
7
12
X
Thick Film
Chip Resistors
Product Code Resistance Tolerance
Code
F
G
J
Tolerance
±1%
±2%
±5%
Shown by 4 digits or letters.
(Ex.) R047 : 0.047 =47 m
Resistance Value
Packaging Methods
Code Packaging Type
XPressed Carrier Taping
2mmpitch ERJ2BW
ERJ6BW
ERJ8BW
VPunched Carrier Taping
4mmpitch
Code
2BW
6BW
8BW
Size:inches
0402
0805
1206
0.125 W
0.33 W
0.5 W
Power Rating Resistance Value
47 mto 91 m
10 mto 100 m
10 mto 100 m
a
b
t
W
L
■Construction ■Dimensions in mm (not to scale)
Protective coating
Alumina substrate Electrode (Inner)
Electrode
(Between)
Thick film
resistive element Electrode (Outer)
Type
(inches)
Dimensions (mm)
Mass(Weight)
[g/1000 pcs.]
LWa b t
ERJ2BW
(0402) 1.00±0.10 0.50+0.10 0.24±0.10 0.24±0.10 0.35±0.05 0.8
ERJ2BS (0402)
ERJ2BQ 1.00±0.10 0.50+0.10 0.20±0.10 0.27±0.10 0.35±0.05 0.8
ERJ3R
ERJ3B (0603)
ERJL03
1.60±0.15 0.80+0.15 0.30±0.20 0.30±0.15 0.45±0.10 2
ERJ6BW(0805) 2.00±0.20 1.25±0.20 0.55±0.20 0.55±0.20 0.65±0.10 6
ERJ6R
ERJ6B (0805)
ERJL06
2.00±0.20 1.25±0.10 0.40±0.20 0.40±0.20 0.60±0.10 4
ERJ8BW(1206) 3.20±0.20 1.60±0.20 1.00±0.20 1.00±0.20 0.65±0.10 13
ERJ8R
ERJ8B (1206)
ERJL08
3.20+0.05 1.60+0.05 0.50±0.20 0.50±0.20 0.60±0.10 10
ERJ14R
ERJ14B (1210)
ERJL14
3.20±0.20 2.50±0.20 0.50±0.20 0.50±0.20 0.60±0.10 16
ERJ12R (1812)
ERJL12 4.50±0.20 3.20±0.20 0.50±0.20 0.50±0.20 0.60±0.10 27
ERJL1D (2010) 5.00±0.20 2.50±0.20 0.60±0.20 0.60±0.20 0.60±0.10 27
ERJ1TR (2512)
ERJL1W
6.40±0.20 3.20±0.20 0.65±0.20 0.60±0.20 0.60±0.10 45
6.40±0.20 3.20±0.20 0.65±0.20 1.30±0.20 1.10±0.10 79
● ERJL03, L06, L08, L14, L12, L1D, L1W Ser ies
● ERJ2BW, 6BW, 8BW Series
–0.20 –0.15
–0.05
–0.05
–0.05
Mar. 2008
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Thick Film Chip Resistors / Low Resistance Type
Type (inches)
Power Rating
at 70 °C
(W)
Resistance
Tolerance
(%)
Resistance
Range
()
T.C.R.
[10–6/°C (ppm/°C)]
Category Temperature Range
(Operating Temperature Range)
(°C)
ERJL03 (0603) 0.1
(0.2) ✽1±1, ±5 47 m to 100 m ✽2±200 –55 to +125
ERJL06 (0805) 0.125
(0.25) ✽1±1,±5 47 m to 100 m ✽2±100 –55 to +125
ERJL08 (1206) 0.25
(0.33) ✽1±1, ±5 47 m to 100 m ✽2±10 0 – 55 to +125
ERJL14 (1210) 0.33 ±1, ±5 20 m to 100 m ✽2
R<47 m:±300
R>47 m:±100
–55 to +125
ERJL12 (1812) 0.5 ±1, ±5 20 m to 100 m ✽2–55 to +125
ERJL1D (2010) 0.5 ±1, ±5 40 m to 100 m ✽2–55 to +125
ERJL1W (2512) 1±1, ±540 m to 100 m ✽2–55 to +125
Type (inches)
Power Rating
at 70 °C
(W)
Resistance
Tolerance
(%)
Resistance
Range
()
T.C.R.
[10–6/°C (ppm/°C)]
Category Temperature Range
(Operating Temperature Range)
(°C)
ERJ2BW (0402)
0.125 ±2, ±5 0.047 to 0.091 (E24) ±300 –55 to +125
ERJ2BS (0402) 0.10 to 0.20 (E24)
ERJ2BQ (0402) ±1, ±2, ±5 0.22 to 1.0 (E24) ±250
ERJ3BS (0603)
0.2 ±1, ±2, ±5
0.10 to 0.20 (E24) ±300 –55 to +125
ERJ3BQ (0603) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ6BW (0805) 0.33
±1, ±2, ±5
0.01 to 0.1 (E24) R<0.015 :±300
R>0.015 :±200 –55 to +15 5
ERJ6BS (0805)
0.25
0.10 to 0.20 (E24) ±250 –55 to +125
ERJ6BQ (0805) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ8BW (1206) 0.5 ±1, ±2, ±5 0.01 to 0.1 (E24)
0.010 < R < 0.020 : ±200
0.020 < R < 0.047 : ±150
0.047 < R < 0.100 : ±100
–55 to +15 5
ERJ8BS (1206)
0.33 ±1, ±2, ±5
0.10 to 0.20 (E24) ±250 –55 to +125
ERJ8BQ (1206) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ14BS (1210)
0.5 ±1, ±2, ±5
0.10 to 0.20 (E24) ±200 –55 to +125
ERJ14BQ (1210) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±100
Type (inches)
Power Rating
at 70 °C
(W)
Resistance
Tolerance
(%)
Resistance
Range
()
T.C.R.
[10–6/°C (ppm/°C)]
Category Temperature Range
(Operating Temperature Range)
(°C)
ERJ3RS (0603)
0.1 ±1, ±2, ±5
0.10 to 0.20 (E24) ±300 –55 to +125
ERJ3RQ (0603) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ6RS (0805)
0.125 ±1, ±2, ±5
0.10 to 0.20 (E24) ±250 –55 to +125
ERJ6RQ (0805) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ8RS (1206)
0.25 ±1, ±2, ±5
0.10 to 0.20 (E24) ±250 –55 to +125
ERJ8RQ (1206) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±200
ERJ14RS (1210)
0.25 ±1, ±2, ±5
0.10 to 0.20 (E24) ±200 –55 to +125
ERJ14RQ (1210) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±100
ERJ12RS (1812)
0.5 ±1, ±2, ±5
0.10 to 0.20 (E24) ±200 –55 to +125
ERJ12RQ (1812) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±100
ERJ1TRS (2512)
1±1, ±2, ±5
0.10 to 0.20 (E24) ±200 –55 to +125
ERJ1TRQ (2512) 0.22 to 0.91 (E24)
1.0 to 9.1 (E24) ±100
■Ratings
<Low resistance type>
<High power type>
<Standard type>
✽
1 Please contact us when resistors with guaranteed high power are needed.
✽2 Standard R.V. : 20 m, 22 m, 33 m, 39 m, 47 m, 50 m, 100 m, Custom R.V. : Each 1 m within upper range.
Jun. 2008
Thick Film Chip Resistors / Low Resistance Type
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
–40 –20 0 20 40 60 80 100 120 140 160
0
180–60
155 °C
70 °C
Ambient Temperature (°C)
20
40
60
80
100
Rated Load (%)
–55 °C
2B, 3R, 3B, 6R, 6B, 8R, 8B,
14R, 14B, 12R, 1TR,
L03, L06, L08, L14, L12, L1D, L1W
6BW, 8BW
125 °C
φB
W
T
φA
φC
TT TA
P0
P2
P1
P1
φD0
φD1(Only Emboss)
B
F
W
E
(2 mm pitch)
● Taping Reel
■Packaging Methods (Taping)
● Standard Quantity
● Carrier Tape
Type Kind of Taping Pitch (P1)Quantity
ERJ2BW Pressed Carrier Taping 2 mm 10000 pcs./reel
ERJ2BS, 2BQ
Punched Carrier Taping
ERJ3R, 3B, L03
4 mm
5000 pcs./reel
ERJ6R, 6B, L06
ERJ8R, 8B, L08
ERJ14R, 14B, L14
Embossed Carrier Taping
ERJ12R, L12
ERJL1D
ERJ1TR 4000 pcs./reel
ERJL1W 3000 pcs./reel
(Unit : mm)
Type φAφBφCWT
ERJ2B
180.0+0
60 min. 13.0±1.0
9.0±1.0 11.4±1.0
ERJ3R, 3B, L03
ERJ6R, 6B, L06
ERJ8R, 8B, L08
ERJ14R, 14B, L14
ERJ12R, L12
13.0±1.0 15.4±2.0
ERJL1D
ERJ1TR
ERJL1W
(Unit : mm)
–3.0
Type A B W F E P1P2P0φD0TφD1
ERJ2BW 0.67±0.10 1.17±0.10
8.00±0.20
3.50±0.05
1.75±0.10
2.00±0.10
2.00±0.05 4.00±0.10 1.50+0.10
0.61±0.05 –
ERJ2BS, 2BQ 0.67±0.05 1.17±0.05 0.52±0.05 –
ERJ3R, 3B, L03 1.10±0.10 1.90±0.05
4.00±0.10
0.70±0.05 –
ERJ6BW 1.55±0.15 2.30±0.20
0.84±0.05
–
ERJ6R, 6B, L06 1.65±0.15 2.50±0.20 –
ERJ8BW, 8R, 8B, L08
2.00±0.15 3.60±0.20 –
ERJ14R, 14B, L14 2.80±0.20 3.50±0.20 8.00±0.30
1.00±0.10
1.0+0.10
ERJ12R, L12 3.50±0.20 4.80±0.20
12.00±0.30
5.50±0.20 1.5 min.
ERJL1D 2.80±0.20 5.30±0.20
ERJ1TR 3.60±0.20 6.90±0.20
ERJL1W 3.60±0.20 6.90±0.20 1.60±0.10
−0
−0
Power Derating Curve
For resistors operated in ambient temperatures above
70 °C, power rating shall be derated in accordance
with the fi gure on the right.
Pressed Carrier Punched Carrier Embossed Carrier
Feb. 2007
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Thick Film Chip Resistors / Low Resistance Type
Preheating
Peak
Heating
Temperature
Time
Chip Resistor
c
a
b
Temperature Time
Preheating 140 °C to 160 °C 60 s to 120 s
Main heating Above 200 °C 30 s to 40 s
Peak 235 ± 5 °C max. 10 s
Temperature Time
Preheating 150 °C to 180 °C 60 s to 120 s
Main heating Above 230 °C 30 s to 40 s
Peak max. 260 °C max. 10 s
For soldering For lead-free soldering
Temperature TimeTemperatureTime
Preheating 140 °C to 180 °C 60 s to 120 s 150 °C to 180 °C 60 s to 120 s
Soldering 245 ± 5 °C 20 s to 30 s max. 260 °C max. 10 s
■Recommended Land Pattern
In case of fl ow soldering, the land width must be smaller than the Chip Resistor width to control the sol der amount properly.
Generally, the land width should be 0.7 to 0.8 times (W) of the width of chip resistor. In case of refl ow soldering, solder
amount can be adjusted, therefore the land width should be set to 1.0 to 1.3 times chip resistor width (W).
■Recommended Soldering Conditions
Recommendations and precautions are described below.
●Recommended soldering conditions for refl ow
For soldering (Example : Sn/Pb)
For lead-free soldering (Example : Sn/Ag/Cu)
●Recommended soldering conditions for fl ow
Type (inches) Dimensions (mm)
abc
ERJ2BW (0402)
0.52 1.4 to 1.6 0.4 to 0.6
ERJ2B (0402)
0.5 to 0.6 1.4 to 1.6 0.4 to 0.6
ERJ3R, 3B, L03 (0603)
0.7 to 0.9 2 to 2.2 0.8 to 1
ERJ6BW (0805)
0.9 3.2 to 3.81.1 to 1.4
ERJ6R, 6B, L06 (0805)
1 to 1.4 3.2 to 3.8 0.9 to 1.4
ERJ8BW (1206)
1.2 4.4 to 5 1.3 to 1.8
ERJ8R, 8B, L08 (1206)
2 to 2.4 4.4 to 5 1.2 to 1.8
ERJ14R, 14B, L14 (1210)
2 to 2.4 4.4 to 5 1.8 to 2.8
ERJ12R, L12 (1812)
3.3 to 3.7 5.7 to 6.5 2.3 to 3.5
ERJL1D (2010)
3.6 to 4 6.2 to 7 1.8 to 2.8
ERJ1TR (2512)
5 to 5.4 7.6 to 8.6 2.3 to 3.5
ERJL1W (2512)
3.6 to 4 7.6 to 8.6 2.3 to 3.5
· Refl ow soldering shall be performed a maximum of
two times.
· Please contact us for additional information when
used in conditions other than those specifi ed.
· Please measure the temperature of the terminals
and study every kind of solder and printed circuit
board for solderability be fore ac tu al use.
Safety Precautions
The following are precautions for individual products. Please also refer to the precautions common to Fixed Resistors
shown on page ER2 of this catalog.
1. Take measures against mechanical stress during and after mounting of Thick Film Chip Resistors (here af ter called the
resistors) so as not to damage their electrodes and protective coatings.
2. If a transient load (heavy load in a short time) like a pulse is expected to be applied, check and evaluate the operations
of the resistors when installed in your products before use.
Never exceed the rated power. Otherwise, the performance and/or reliability of the resistors may be impaired.
3. Do not use halogen-based or other high-activity fl ux. Otherwise, the residue may impair the resistors' per for mance
and/or reliability.
4. When soldering with a soldering iron, never touch the resistors' bodies with the tip of the soldering iron. When using a
soldering iron with a high temperature tip, fi nish soldering as quickly as possible (within three seconds at 350 °C max.).
5. As the amount of applied solder becomes larger, the mechanical stress applied to the resistors increases, causing
problems such as cracks and faulty characteristics. Avoid applying an excessive amount of solder.
6. Do not apply shock to the resistors or pinch them with a hard tool (e.g. pliers and tweezers). Oth er wise, the re sis tors'
protective coatings and bodies may be chipped, affecting their performance.
7. Avo id exc essive be n ding of printed circuit boards in order to protect the resistors from abnormal stress.
Feb. 2007
– ER3 –
Safety Precautions
(Common precautions for Fixed Resistors)
• When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifi cations with us in advance. The design and specifi cations in this catalog are subject
to change without prior notice.
• Do not use the products beyond the specifi cations described in this catalog.
• This catalog explains the quality and performance of the products as individual components. Be fore use, check
and evaluate their operations when installed in your products.
• Install the following systems for a failsafe design to ensure safety if these products are to be used in equip ment
where a defect in these products may cause the loss of human life or other signifi cant damage, such as damage to
vehicles (au to mo bile, train, vessel), traffi c lights, medical equipment, aerospace equipment, elec tric heating
ap pli anc es, com bus tion/gas equipment, rotating equipment, and disaster/crime prevention equip ment.
✽ Systems equipped with a protection circuit and a protection device
✽ Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault
(1) Precautions for use
• These products are designed and manufactured for general and stan dard use in general elec tron ic
equipment (e.g. AV equipment, home electric ap pli anc es, offi ce equipment, information and com mu ni ca tion
equipment)
• These products are not intended for use in the following special conditions. Be fore using the products, care ful ly
check the effects on their quality and performance, and determine whether or not they can be used.
1. In liquid, such as water, oil, chemicals, or organic solvent
2. In direct sunlight, outdoors, or in dust
3. In salty air or air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
4. Electric Static Discharge (ESD) Environment
These components are sensitive to static electricity and can be damaged under static shock (ESD).
Please take measures to avoid any of these environments.
Smaller components are more sensitive to ESD environment.
5. Electromagnetic Environment
Avoid any environment where strong electromagnetic waves exist.
6. In an environment where these products cause dew condensation
7. Seal ing o r coating of these products or a printed circuit board on which these products are mounted, with resin
or other materials
• These products generate Joule heat when energized. Carefully position these products so that their heat will not
affect the other components.
• Carefully position these products so that their temperatures will not exceed the category temperature range due
to the effects of neighboring heat-generating com po nents. Do not mount or place heat-generating com po nents or
infl ammables, such as vinyl-coated wires, near these products .
• Note that non-cleaning solder, halogen-based highly active fl ux, or water-soluble fl ux may deteriorate the
performance or reliability of the products.
• Carefully select a fl ux cleaning agent for use after soldering. An unsuitable agent may deteriorate the
performance or reliability. In particular, when using water or a water-soluble cleaning agent, be careful not to leave
water res i dues. Otherwise, the insulation performance may be deteriorated.
(2) Precautions for storage
The performance of these products, including the solderability, is guaranteed for a year from the date of arrival at your
company, provided that they remain packed as they were when delivered and stored at a temperature of 5 °C to 35 °
C and a relative humidity of 45 % to 85 %.
Even within the above guarantee periods, do not store these products in the fol low ing conditions. Otherwise, their
elec tri cal performance and/or solderability may be deteriorated, and the packaging materials (e.g. tap ing ma te ri als)
may be de formed or deteriorated, resulting in mounting failures.
1. In salty air or in air with a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NO2
2. In direct sunlight
<Package markings>
Package markings include the product number, quantity, and country of origin.
In principle, the country of origin should be indicated in English.
Oct. 2007
