Metal Film (Thin Film) Chip Resistors,
High Reliability Type
ERA A type
ERA 1A, 2A, 3A, 6A, 8A
series
Features
: Stable at high temperature and humidity
(85
℃
85 %RH rated load, Category temperature range : –55
℃
to +155
℃)
: Low resistance tolerance and Temperature Coefficient of Resistance
●
High accuracy
: Low current noise, excellent linearity
●
High performance
: IEC 60115-8, JIS C 5201-8, JEITA RC-2133C
●
Reference standard
●
AEC-Q200 compliant (except ERA1A)
●
RoHS compliant
●
High reliability
■
As for packaging methods, land pattern, soldering conditions and safety precautions,
please see data files.
Explanation of part numbers
●
E24 series
1
2
3
4
5
6
7
8
9
10
11
E
Product code
Thin film
chip resistors
R
A
3
A
E
B
1
Resistance tolerance
0
2
Resistance value
V
Packaging methods
Code
Packaging
Pressed carrier taping
2 mm pitch, 15,000 pcs
Punched carrier taping
2 mm pitch, 10,000 pcs
Punched carrier taping
4 mm pitch, 5,000 pcs
Size, Power rating
Code
inch size
Power rating
Temp. coefficient
Code
T.C.R.
±10×10 /K
±15×10 /K
±25×10
-6
/K
±50×10 /K
±100×10
-6
/K
-6
-6
-6
Code
W
B
C
D
Tolerance
±0.05 %
±0.1 %
±0.25 %
±0.5 %
1A
2A
3A
6A
8A
0201
0402
0603
0805
1206
0.05 W
0.063 W
0.1 W
0.125 W
0.25 W
R
P
E
H
K
Consist of three
figures
for E24 series resistance
value.
The
first
two digits are
significant
figures
of
resistance and the third
one denotes number of
zeros following.
(example) 102 : 1 kΩ
Part No.
C
ERA1A
X
ERA2A
ERA3A
ERA6A
ERA8A
V
●
E96 series and other Resistance values
1
2
3
4
5
6
7
8
9
10
11
12
E
R
A
3
A
E
B
1
0
5
1
V
Product Code
Thin film
chip resistors
Size, Power rating
Code
inch size
Power rating
Temp. coefficient
Code
Resistance tolerance
Resistance value
Consist of four
figures
for
E96 series resistance
value.
The
first
three digits are
significant
figures
of
resistance and the fourth
one denotes number of
zeros following.
(example)
1051 : 1.05 kΩ
Code
Packaging methods
Packaging
Pressed carrier taping
2 mm pitch, 15,000 pcs
Punched carrier taping
2 mm pitch, 10,000 pcs
Punched carrier taping
4 mm pitch, 5,000 pcs
T.C.R.
±10×10
-6
/K
±15×10 /K
±25×10
-6
/K
±50×10 /K
±100×10
-6
/K
-6
-6
Code
W
B
C
D
Tolerance
±0.05 %
±0.1 %
±0.25 %
±0.5 %
Part No.
1A
2A
3A
6A
8A
0201
0402
0603
0805
1206
0.05 W
0.063 W
0.1 W
0.125 W
0.25 W
R
P
E
H
K
C
ERA1A
X
ERA2A
ERA3A
ERA6A
ERA8A
V
Note : Duplicated resistance values as E24 series part umbers shall follow E24 part numbers.
(apply three digit resistance value)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
1-Jul-21
Metal Film (Thin Film) Chip Resistors, High Reliability Type
Ratings
(inch size)
Part No.
Power
rating
*1
(85
℃)
(W)
Limiting
element
voltage
*2
(V)
Maximum
overload
voltage
*3
(V)
Part No.
(detail)
ERA1AEB
Resistance
tolerance
(%)
(×10
-6
/K)
T.C.R.
Resistance
range
*4 *5
(Ω)
100 to 10 k
100 to 10 k
1 k to 10 k
10 to 46.4
47 to 100 k
200 to 47 k
200 to 47 k
10 to 46.4
47 to 330 k
470 to 100 k
1 k to 100 k
10 to 46.4
47 to 1 M
470 to 100 k
1 k to 100 k
10 to 46.4
47 to 1 M
470 to 100 k
1 k to 100 k
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
Category
temperature
range
(℃)
AEC-Q200
Grade
ERA1A
(0201)
ERA1AEC
0.05
25
50
ERA1ARC
ERA1ARB
ERA1ARW
ERA2AKD
ERA2AED
ERA2AEC
ERA2A
(0402)
0.063
50
100
ERA2AEB
ERA2APC
ERA2APB
ERA2ARC
ERA2ARB
ERA3AHD
ERA3AED
ERA3AEC
ERA3AEB
ERA3A
(0603)
0.1
75
150
ERA3APC
ERA3APB
ERA3ARC
ERA3ARB
ERA3ARW
ERA6AHD
ERA6AED
ERA6AEC
ERA6AEB
ERA6A
(0805)
0.125
100
200
ERA6APC
ERA6APB
ERA6ARC
ERA6ARB
ERA6ARW
ERA8AHD
ERA8AED
ERA8AEC
ERA8AEB
ERA8A
(1206)
0.25
150
300
ERA8APC
ERA8APB
ERA8ARC
ERA8ARB
ERA8ARW
±0.1
±0.25
±0.25
±0.1
±0.05
±0.5
±0.5
±0.25
±0.1
±0.25
±0.1
±0.25
±0.1
±0.5
±0.5
±0.25
±0.1
±0.25
±0.1
±0.25
±0.1
±0.05
±0.5
±0.5
±0.25
±0.1
±0.25
±0.1
±0.25
±0.1
±0.05
±0.5
±0.5
±0.25
±0.1
±0.25
±0.1
±0.25
±0.1
±0.05
±25
±10
±100
±25
±15
±10
±50
±25
±15
±10
±50
±25
±15
±10
±50
±25
±15
±10
-
Grade 1
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
(E24,E96)
–55 to +155
Grade 0
*1: Use it on the condition that the case temperature is below the upper category temperature.
*2: Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Values,
or Limiting Element Voltage listed above, whichever less.
*3: Overload Test Voltage (OTV) shall be determined from OTV=Specified Magnification (2.5) × RCWV or Maximum Overload
Voltage listed above, whichever less.
*4: E192 series resistance values are also available. Please contact us for details.
*5: Duplicated resistance values between E96, E192 and E24 series shall follow E24 Part Numbers.
(apply three digit resistance value)
For resistors operated in ambient temperatures
accordance with the figure on the right.
Rated load (%)
Power derating curve
100
80
60
40
20
-55
℃
85
℃
above 85
℃,
power rating shall be derated in
0
-60
155
℃
-40 -20
0
20
40
60
80
100 120 140 160 180
Ambient temperature (℃)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
1-Jul-21
Metal Film (Thin Film) Chip Resistors, High Reliability Type
Construction
Protective coating
Electrode (Inner)
Electrode (Between)
Alumina substrate
High reliability metal film
Electrode (Outer)
*0201/0402 size or E96 series do not have value markings.
Dimensions (not to scale)
a
W
T
b
Unit : mm
L
Part No.
ERA1A
ERA2A
ERA3A
ERA6A
ERA8A
L
0.60±0.03
1.00±0.10
1.60±0.20
2.00±0.20
3.20±0.20
W
0.30±0.03
0.50+0.10/-0.05
0.80±0.20
1.25±0.10
1.60+0.05/-0.15
Dimensions
a
0.15±0.05
0.15±0.10
0.30±0.20
0.40±0.25
0.50±0.25
b
0.15±0.05
0.25±0.10
0.30±0.20
0.40±0.25
0.50±0.25
T
0.23±0.03
0.35±0.05
0.45±0.10
0.50±0.10
0.60±0.10
Mass (Weight)
(Reference)
(g/1000 pcs)
0.14
0.6
2
4
8
Performance
Test Item
Resistance
T. C. R.
Overload
Resistance to
soldering heat
Rapid change
of temperature
High temperature
exposure
Damp heat,
Steady state
Load life in
humidity
Endurance at 85℃
Performance
requirements
⊿R
Within specified
tolerance
Within specified
T. C. R.
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
R<47 Ω : ±0.5 %
R≧47Ω
: ±0.1 %
Test conditions
20
℃
+25
℃
/ +125
℃
Rated voltage x 2.5, 5 s
270
℃,
10 s
ERA1A, 2A : –55
℃
(30 min.) / +125
℃
(30 min.),1000 cycles
ERA3A, 6A, 8A : –55
℃
(30 min.) / +155
℃
(30 min.),1000 cycles
+155
℃,
1000 h
85
℃,
85 %RH, 1000 h
85
℃,
85%RH, 10% rated power, 1.5 h ON / 0.5 h OFF cycle, 1000 h，
Max. test voltage : ERA2A : 15.8 V, ERA3A : 23.7 V, ERA6A : 31.6 V,
ERA8A : 47.4 V
85℃, Rated voltage, 1.5 h ON / 0.5 h OFF cycle, 1000 h
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
1-Jul-21
Guidelines and precautions regarding the
technical information and use of our products
described in this online catalog.
■
If you want to use our products described in this online catalog for applications requiring special
qualities or reliability, or for applications where the failure or malfunction of the products may directly
jeopardize human life or potentially cause personal injury (e.g. aircraft and aerospace equipment,
traffic and transportation equipment, combustion equipment, medical equipment, accident prevention,
anti-crime equipment, and/or safety equipment), it is necessary to verify whether the specifications of
our products fit to such applications. Please ensure that you will ask and check with our inquiry desk
as to whether the specifications of our products fit to such applications use before you use our products.
■
The quality and performance of our products as described in this online catalog only apply to our
products when used in isolation. Therefore, please ensure you evaluate and verify our products under
the specific circumstances in which our products are assembled in your own products and in which our
products will actually be used.
■
If you use our products in equipment that requires a high degree of reliability, regardless of the
application, it is recommended that you set up protection circuits and redundancy circuits in order
to ensure safety of your equipment.
■
The products and product specifications described in this online catalog are subject to change for
improvement without prior notice. Therefore, please be sure to request and confirm the latest product
specifications which explain the specifications of our products in detail, before you finalize the design
of your applications, purchase, or use our products.
■
The technical information in this online catalog provides examples of our products' typical operations
and application circuits. We do not guarantee the non-infringement of third party's intellectual property
rights and we do not grant any license, right, or interest in our intellectual property.
■
If any of our products, product specifications and/or technical information in this online catalog is to
be exported or provided to non-residents, the laws and regulations of the exporting country,
especially with regard to security and export control, shall be observed.
<Regarding the Certificate of Compliance with
the EU RoHS Directive/REACH Regulations>
■
The switchover date for compliance with the RoHS Directive/REACH Regulations varies depending
on the part number or series of our products.
■
When you use the inventory of our products for which it is unclear whether those products are
compliant with the RoHS Directive/REACH Regulation, please select "Sales Inquiry" in the website
inquiry form and contact us.
We do not take any responsibility for the use of our products outside the scope of the
specifications, descriptions, guidelines and precautions described in this online catalog.
16-Apr-21
Fixed Resistors
Application
Guidelines (Fixed Resistors)
Safety precautions
• When using our products, no matter what sort of equipment they might be used for, be sure to make a written
agreement on the specifications with us in advance. The design and specifications in this catalog are subject to
change without prior notice.
• Do not use the products beyond the specifications described in this catalog.
• This catalog explains the quality and performance of the products as individual components. Before use, check
and evaluate their operations when installed in your products under the actual conditions for use.
• Install the following systems for a failsafe design to ensure safety if these products are to be used in equipment
where a defect in these products may cause the loss of human life or other significant damage, such as
damage to vehicles (automobile, train, vessel), traffic lights, medical equipment, aerospace equipment,
electric heating appliances, combustion/gas equipment, rotating equipment, and disaster/crime prevention
equipment.
½
Systems equipped with a protection circuit and a protection device.
½
Systems equipped with a redundant circuit or other system to prevent an unsafe status in the event of a single fault.
½
Systems equipped with an arresting the spread of fire or preventing glitch.
Precautions for use
• These products are designed and manufactured for general and standard use in general elec tron ic equipment.
(e.g. AV equipment, home electric appliances, office equipment, information and communication equipment)
For applications in which special quality and reliability are required, or if the failure or malfunction of the
products may directly jeopardize life or cause threat of personal injury (such as for aircraft and aerospace
equipment, traffic and transport equipment, combustion equipment, medical equipment, accident prevention
and anti-theft devices, and safety equipment), please be sure to consult with our sales representative in
advance and to exchange product specifications which conform to such applications.
• These products are not intended for use in the following special conditions. Before using the products, carefully
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 NOX .
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 and Radioactive Environment.
Avoid any environment where strong electromagnetic waves and radiation exist.
6. In an environment where these products cause dew condensation.
7. Sealing or 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 components. Do not mount or place heat-generating
components or inflammables, such as vinyl-coated wires, near these products.
• Note that non-cleaning solder, halogen-based highly active flux, or water-soluble flux may deteriorate the
performance or reliability of the products.
• Carefully select a flux 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 residues. Otherwise, the insulation performance may be deteriorated.
• Do not apply flux to these products after soldering. The activity of flux may be a cause of failures in these
products.
• Refer to the recommended soldering conditions and set the soldering condition. High peak temperature or
long heating time may impair the performance or the reliability of these products.
• Recommended soldering condition is for the guideline for ensuring the basic characteristics of the products,
not for the stable soldering conditions. Conditions for proper soldering should be set up according to individual
conditions.
• Do not reuse any products after removal from mounting boards.
• Do not drop these products. If these products are dropped, do not use them. Such products may have
received mechanical or electrical damage.
• If any doubt or concern to the safety on these products arise, make sure to inform us immediately and
conduct technical examinations at your side.
01-Oct-19
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