Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 101
Panasonic Electronic Devices Co., Ltd.
1. Dimension
L W a b t
mm
inch
1.60±0.15
0.63±.006
0.80±0.20
.031±.008
0.30±0.20
.012±.008
0.30±0.20
.012±.008
0.45±0.10
.018±.004
2. Power deratimg Curve
120
100
60
40
20
0
-55 -40 0 40 80 120 140 160
70
125
Rated Load(%)
3. Ratings
Item Rated value Explanation
Rated power 0.10 W
(at 70 °C or lower)
When used at ambient temperture over
70°C, the load power should be reduced
as shown in Flg.1
Flg.1 Ambient Temperature (°C)
Category temperature range
-55~+125°C
L
a a
W
t
b b
(1) (2) (3) (4) (5) (6)
(1) Substrate Alumina
(2) Protective
coating Epoxy resin
(3) Resistive
element NiCr alloy
(4) Inner
termination special termination
(5) Between
termination Ni plating
(6) Outer
termination Sn plating
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 102
Panasonic Electronic Devices Co., Ltd.
Rated voltage
&
Limiting element
voltage
The rated voltage of each resistance should be calculated from the
equation below, and when the rated voltage exceeds the imiting
element voltage, the imiting element voltage should be the rated
voltage.
Limiting element voltage ;75V
E : Rated voltage (V) P : Rated power (W)
R : Rated resistance value (Ω)
Tolerance for
resistance
Resistance range
E-96 series :special
When E-96 series overlap
E-24 series, E-24 series
Should be the first priority
4. Explanation of Part Number
(1) (2) (3) (4) (5) (6) (7)
(1) Product Code : Metal Film Chip Resistors
(2) Size and Rated Power : 1.6 mm x 0.8 mm, 0.10W
(3) Series and marking
Code Series Marking
Y E-24 series 3 digit marking
E E-96 series No marking
(4) T.C.R.
Code T.C.R. Resistance range
Η ± 50x10-6/°C
10Ω ~ 97.6Ω
Ε ± 25x10-6/°C
100Ω ~ 33 kΩ
Κ ±100x10-6/°C 33.2kΩ ~ 330kΩ
(5)Resistance Tolerance
Code Resistance Tolerance
D +/- 0.5%
B +/- 0.1%
(6) Resistance Value
<E-24 series> 3-digits type 123 12×103 12k
<E-96 series> 4-digits type 3012 301×102 30.1k
(7) Packaging Configuration
Code Packaging Configuration
V Taping (5000pcs/reel)
Code. Tolerance for resis.
D ± 0.5%
B ± 0.1%
Tolerance Resistance range Series
D 10 Ω ~330k Ω E-24
B 100Ω ~33k Ω E-24
E R A 3 Y E D 1 0 2 V
RPE
×=
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 103
Panasonic Electronic Devices Co., Ltd.
5. Appearance & Construction
Item Rated value Explanation
Appearance &
Construction
1. The resistive element should be covered with protective coating
that don’t fade easily. The surface of coating should avoid
unevenness, flaw, pinhole and discoloration.
2. The electrode should be printed uniformly, as shown in the
dimensions. The plating should not fade easily, and should avoid
unevenness, flaw, pinhole, projection and discoloration.
3. The electrode should be connected electrically, mechanically to
resistive element.
As far as there shall not designation especially, the following test and measurement
shall be operated under normal temperature (15~35°C), normal humidity(25~75%),
normal atmospheric pressure( 4
108.6 ×~Pa101.06 5
×).
6. Performance Specification
Specifications
Item Chip Resistor Explanation
DC
Resistance
DC Resistance value shall
be within the specified
tolerance
At 20°C, 65%RH
Temperature
Coefficient
Natural resistance change per
Temperature degree centigrade.
6
10
1)t21(tR 1R2R ×
R1 : Resistance value at reference
temperature(t1)
R2 : Resistance value at test
temperature(t2)
t2 t1 = 100°C t1 = 25°C
Short-time
overload ± (0.5 % + 0.1Ω)
Resistors shall be applied 2.5 times the
rated voltage for 5 seconds.
However, the upper limit of the voltage in the
test shall be 150V.
Dielectric
Withstanding
No evidence of flashover,
mechanical damage,
arcing or insulation break-
down
Insulation
Resistance Min.
1,000M
Ω
AC 100V between substrate and termination for
1 min.
Resistors shall be facing down. After applying DC
100V to the resistor, insulation resistance shall be
measured.
Resit. range TCR
10Ω
~97.6Ω ± 50x10-6/°C
100Ω
~33 kΩ ±25x10 -6/°C
33.2kΩ
~330kΩ ±100x10-6/°C
(10-6/)
AC
powersupply
or
Insulation
resistance
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 104
Panasonic Electronic Devices Co., Ltd.
7. Mechanical characteristic
Specifications
Item Chip Resistor Explanation
Without distinct deforma-
tion in appearance
Bond strength
of the face
plating
± (0.5 % + 0.05Ω)
Substrate : Glass epoxy(t=1.6mm)
Span : 90mm
Bending distance :3mm (10 seconds)
Solderability
Termination should be
covered uniformly with
solder
(min. 95% coverage)
Resistors shall be dipped in the melted sol-
der bath at 5235
±
°C for 5.02 ± sec.
Flux shall be removed from the surface
of termination with clean organic solvent.
Resistance to
Soldering Heat ± (0.5 % + 0.05Ω) Resistors shall be dipped in the melted
solder bath at 3270
±
°C for 110 ±°C sec.
Without distinct
deformation in appearance
Resistance to
Solvent ± (0.5 % + 0.05Ω)
olvent solution : Isopropyl alcohol
(1)Dipping 10 +/- 1 hours, dry in room
condition for 30 +/- 10 minutes.
(2)Ultrasonic wave washing : 5 +/- 1 min.
(0.3W/cm2,28kHz)
Dry in room condition for 30 +/-10
minutes.
(unit: mm)
100
40
1.0 1.0 1.0
1
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 105
Panasonic Electronic Devices Co., Ltd.
8. Environment Test
Specifications
Item Chip Resistor Explanation
High Temperature
Exposure ± (0.5 % + 0.05Ω) Resistors shall be exposed at125±3°C
for 1000 48
0
±hours.
Rapid change of
temperatrure ± (0.5 % + 0.05Ω)
355
±
°C 30minutes
↓↑
Normal Within 3minutes 5 cycles
↓↑
3125
±
°C 30minutes
Damp heat ,
Steady State ± (0.5 % + 0.05Ω)
Resistors shall be exposed at 60±2°C
and 90~95% relative humidity in a humidity
test chamber for 1000 48
0
±hours.
Load Life ± (1.0 % + 0.1Ω)
Resistors shall be exposed at 70±2°C and
1000 48
0
±hours. During this time.
The rated voltage shall be applied intermit-
tently for 1.5 hours ON,0.5 hours OFF.
Load Life in
Humidity ± (1.0 % + 0.1Ω)
Resistors shall be exposed to at 40±2°C and
90~95% relative humidity for 1000 48
0
±hours.
During this time the rated voltage shall be
applied intermittently for 1.5 hours ON,0.5
hours OFF.
9. Marking
Express resistance value on resin side with three digits.
(For example)
101 100
Ω
The first two digits are
significant figures of resistance
and the third one denotes number
of zeros following.
E-96 series: No marking
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 106
Panasonic Electronic Devices Co., Ltd.
10. Common Precautions in Handling Resistors
! Notice for use
(1) This specification shows the quality and performance of a u nit comp onent. Before adoption, be sure to
evaluate and verify the product mounting it in your pr oduct.
(2) We take no responsibility for troubles caused by the product usage that is not specified in this specification.
(3) In advance-notification to us is required in case you demand high reliability i n the resistors because there is a
possibility that a trouble or a failure in our resistor which is used in your transportation units (e.g. Trains, cars,
ships, traffic signal equipment etc.), ocean floor-equipment, medical equipment, aerospace equipm ent,
electrothermal goods, combustion and gas equipment, power station control equipment, informati on control
equipment, rotating equipment, disaster and crime preventive equip ment, various safety devices, and the
equivalent equipment may cause critic al damage occurrence such as loss of life or property.
In addition, use fail-safe design as mentioned below for preventing extensive damage and for ensuring the
safety:
*Ensure safety by the system in which the protective circuits and/or protective equipment are installed.
*Ensure safety by the system in which a single failure does not cause unsafety by installing such as
redundant circuits.
(4) When a dogma shall be occurred about safety for this product, be sure to inform us rapidly,
operate your technical examination.
(5) The product is designed to use in ge neral standard applications of general electric
equipment (AV products, household e lectric appliances, office equipment, information and
communication equipment, etc.); hence, it do not take the use under the following special
environments into consideration.
Accordingly, the use in the following special environments, and such e nvir onmental conditions may
affect the performance of the product; prior to use, verify the performance, reliability, etc. thoroughly.
1) Use in liquids such as water, oil, chemical, and organic solvent.
2) Use under direct sunlight, in outdoor or in dusty atmospheres.
3) Use in places full of corrosive gases such as sea bre eze, Cl2, H2S, NH3, SO2, and NOX.
4) Use in environment with large static electricity or strong electromagnetic waves or
strong radial ray.
5) Where the product is close to a heating compon ent, or where an inflammable such as
a polyvinyl chlorid e wir e is arranged close to the product.
6) Where the resistor is sealed or c oated with resin et c.
7) Where solvent, water, or water-soluble detergent is used in cleaning free soldering and in flux cleaning
after soldering. (Pay particular attention to water-soluble flux.)
8) Use in such a place where the product is wetted due to dew co ndensation.
(6) If transient load (heavy load in a short time) like pulse is expected to be applied, carry out
evaluation and confirmation test with resistors actually mounted on your own board.
When the load of more than rated power is applied under the load condition at steady state, it
may impair performance and/or reliability of resistor. Never exceed the rated power and
rated voltage. Temperature of resistors may become high even with specified conditions. Please c onfir m
safety of heat from resistors on print circuit board and components around them. Wh en the product shall be
used under special condition, be sure to ask us in advance.
(7) Halogen type (Chlorine type, Bromine type, etc.) or other high-activity flux is not
recommended as t he residue may affect performance or reliability of resistors.
Strong acid flux, water soluble-flux and flux including fluorine ion shall not be used.
(8) When soldering with soldering iron, never to uch the body of the chip resistor wit h a t ip of
the soldering iron. When using a soldering iron with a tip at high temperature, solder for a
time as short as possible. (three seconds or less up to 3 50 deg.C)
(9) Avoid physical shock to the resistor and nipping of the resist or wit h hard tool (a pair of
pliers or tweezers) as it may damage protective film or the body of resistor and may affect
resistor’s performance.
(10) Avoid immersion of chip resistor in solvent for long time. Use solvent after the effect of
immersion is confirmed.
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 107
Panasonic Electronic Devices Co., Ltd.
11. Storage Method
If the product is stored in the following environments and conditions, the performance and
solderability may be badly affected, avoid the storage in the following environments.
(1) Storage in places full of corrosive gases such as sea breeze, Cl2, H2S, NH3, SO2, and
NOX.
(2) Storage in places exposed to direct sunlight.
(3) Storage in places outside the temperature range of 5 oC to 35 oC and humidity range of
45 %RH to 85 %RH.
(4) The period of guarantee for performance such as solderability is 1 year after our
delivery; and this condition applies only to the case where the storage method specified
in item (1) to (3) has been followed.
12. Laws and Regulations
(1) This product has not been manufactured with any ozone-depleting chemical controlled
under the Montreal Protocol.
(2) This product complies with the RoHS Directive (Restriction of the use of certain Hazardous
substances in electrical and electronic equipment (DIRECTIVE 2002/95/EC)).
(3) All materials used in this part are registered material under the Law Concerning the
examination and Regulation of Manufacturs, etc. of Chemical substances.
(4) All the materials used in this part contain no brominated materials of PBBOS or PBBS as
the flame-retardant.
(5) If you need the notice by letter of “A preliminary judgement on the laws of Japan
foreign exchange and foreign trade control”, be sure to let us know.
13. Production Site
Country: Japan
Plant: Panasonic Electronic Devices Japan Co., Ltd.
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 108
Panasonic Electronic Devices Co., Ltd.
14. Tape and Reel Package
14.1 Structure and reel dimensions shall be as shown in the figure below.
Inaccordance with EIAJ ET-7200.
14.2 Carrier Tape Dimensions
T
Do
P1 P2 P0
A
F
E
W
Sprocket hole
Chip resistor
Chi
p
hole
A B W F E
(mm) 1.10±0.10 1.90±0.10 8.00±0.20 3.50±0.05 1.75±0.10
(inch) .043±.004 .074±.004 .314±.008 .137±.002 .069±.004
P1 P2 P0 D0 T
(mm) 4.00±0.10 2.00±0.05 4.00±0.10 0.10
0
1.50 ± 0.70±0.05
(inchi) .157±.004 .079±.002 .157±.004 .004
0
.059 ± .028±.002
14.3 Tapping specifications
14.3.1 Taping
(1) Minimum Bending Radius
There shall be no defection of chip and no breakage of carrier tape in case carrier tape
have been bent by minimum bending radius (15mm). Test shall be conducted for 1 time.
(2) Resistance to climate of top tape
The top tape shall not tear off after exposure at 60 oC, 90 %RH to 95 %RH for 120 h.
(3) Peeling strength
Peeling strength shall be within 0.049 N to 0.49 N. There shall be no burr or breakage
after test. Test method is as follows:
Carrier tape
Top tape
A
dhesive tape Unit : mm
Min. 60.0
11.4 +/-
9.0 +/- 1.0
180.0 +0 /
13.0 +/- 1.0
Min. 60.0
Spec. No.
Subject
Metal Film(Thin Film) Chip Resistors PRODUCT SPECIFICATION FOR INFORMATION
151-SRA-E102R
Part No.
E R A 3 109
Panasonic Electronic Devices Co., Ltd.
<Test Methods>
14.3.2 Quantity in Taping: 5000 pcs. /reel
14.3.3 Tape packaging
(1) Resistance side shall be facing upward.
(2) Chip resistor shall not be sticking to top tape and bottom tape.
(3) Chip resistor shall be easy to take out from carrier tape and chip hole or sprocket hole
shall not have flash and break.
14.4 Outer Packaging
Quantity: 20 reels (Max. 100,000pcs.)
* When taping shall not reach Max. or quantity, the remaining empty space shall be buried
with buffer material.
* When the quantity shall be few, alternative packaging methods may be used. No problem
must occur during the exportation of the product.
14.5 Marking (Label)
Items listed below shall be displayed.
(1) Side of reel (Marking shall be on one side)
1)Part name, 2)Part number, 3)Quantity, 4)Lot number, 5)Maker name, 6) Production country
(2)Packaging box
1)Customer name, 2)Part name, 3)Part number, 4)Customer part number, 5)Quantity.
6)Maker name, 7)Production country
Peeling directionCarrier tape
Top tape
10 o
Tape
Marking