Standard No.
Revision code
Designation of standard
Page
Product standard
1/19
CR-D-8049
Contents
1. Scope .............................................................................................................................................................. 2
2. Relevant documents ....................................................................................................................................... 2
3. Model designation .......................................................................................................................................... 2
4. Ratings ........................................................................................................................................................... 2
5. Appearance and marking ............................................................................................................................... 5
6. Performance ................................................................................................................................................... 6
7. Packing ..........................................................................................................................................................11
8. Packing specifications .................................................................................................................................. 15
9. Operating instructions .................................................................................................................................. 17
10. Industrial property rights .............................................................................................................................. 19
11. Other ............................................................................................................................................................ 19
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
2/19
1. Scope
This standard is applied to the corner type High Voltage CR HCR Type series.
2. Relevant documents
JIS C 5201
Common Rules for Fixed Resistors for Electronics Equipment
JIS C 5201-1 Method of Testing Fixed Resistors for Electronics Equipment
JIS C 0806
Taping of Electronics Parts (Surface Mounting Devices)
3. Model designation
A model designation shall be composed as follows:
(1) shall represent the designation of the article. (See clause 4-1.)
HCR32 - 305
J
V
(2) shall represent the nominal resistance. (See clause 4-5.)
(1)
(2)
(3)
(4)
(3) shall represent the resistance allowance. (See clause 4-6.)
(4) shall represent the form of packing. (For details, see clause 7.)
Code
V
B
Form of packing
Paper taping
Bulk
4. Ratings
4-1. Rated power: The rated power shall be as follows:
Article
designation
HCR32
Rated
power
(W)
0.250
Resistance
allowance
F(±1%)
J(±5%)
Resistance
range (Ω)
Temperature
coefficient at zeroeth
order of the resistance
(ppm/°C)
Maximum
operating
voltage (V)
Maximum
overload
voltage (V)
160k~20M
160k~20M
±200
500
1000
4-2. Operating temperature range
-55°C to 125°C
4-3. Maximum power (maximum current)
Power reduction curve
Rated power ratio (%)
With the rated ambient temperature set to 70°C, the
maximum power (the maximum current for a 0Ω product) at
a temperature of no more than the rated ambient temperature
shall be equal to the rated power . The maximum power at a
temperature exceeding the rated ambient temperature shall be
a value determined by reducing the rated power according to
the power reduction curve on the right-hand figure.
100
80
60
40
20
0
--55
0
70
125
Ambient temperature (°C)
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
3/19
CR-D-8049
4-4. Rated voltage
The rated voltage shall be the DC or AC (effective power frequency) voltage corresponding to the rated power
and shall be determined with the formula given below. However, if the determined rated voltage exceeds the
maximum operating voltage specified in clause 4-1, that maximum operating voltage shall be the rated voltage.
E: Rated voltage (V)
P: Rated power (W)
E= P×R
R: Nominal resistance (Ω)
4-5. Nominal resistance
The nominal resistance shall be in ohms (Ω), and shall be 10n times (n is an integer) the value in the sequences
E24 and E96 in the table below.
1.0
3.3
1.1
3.6
1.2
3.9
1.3
4.3
1.5
4.7
Sequence E24
1.6
1.8
5.1
5.6
2.0
6.2
2.2
6.8
2.4
7.5
2.7
8.2
3.0
9.1
4-6. Resistance allowance
The resistance allowance shall come in the two values shown below. The combinations of the standard value of
nominal resistance and resistance allowance shall be as in the table below.
Resistance allowance
±1%
±5%
Code
F
J
Form No. 032
Standard value of nominal resistance
Sequence E24
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
4/19
CR-D-8049
4-7. Structural diagram
③
⑥
⑤
④
⑦
⑧
②
⑨
⑩
①
Code
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
Designation of
component
Ceramics board
Rear electrode
Surface electrode
Resistor
Protective coat I
Protective coat II
Stamp
Side electrode
Internal electrode
External electrode
4-8. Dimensions
Material
Alumina 96%
Glass-based Ag
Glass-based Ag-Pd
Based on ruthenium oxide
Glass-based
Resin-based
Resin -based
Resin -based Ag
Ni plated (plating 2-12μm thick)
Sn plating (Sn 100%) (plating 2-12μm thick)
L
c
W
t
d
[mm]
Form of
packing
Taped bulk
Article
HCR32
L
W
c
d
t
3.2±0.10
1.6±0.10
0.5±0.2
0.5±0.2
0.50±0.10
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
5/19
5. Appearance and marking
5-1. Appearance
All products shall be free of considerable scratches, cracks, and other anomalies when visually tested.
5-2. Product marking
All products shall be marked with their nominal resistance values, as described in the table below.
Location of
marking
Marking color
Method of
marking
Overcoat top of resistor
White
Marking in 3 digits (E24)
The first two numbers shall be effective numbers in ohms (Ω). The third digit shall represent the
number of zeros following the effective numbers.
3MΩ
305
Application: HCR32
(1) Decimal points shall be represented in Rs. In this case, all shall be effective numbers.
(2) Marking of classes F and D
Article
HCR32
Sequence E24
Marking in 3 digits
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
6/19
6. Performance
6-1. Electric performance
Electric performance shall satisfy the requirements specified in the table below. The test method shall be as per
JIS C 5201-1.
No.
1
2
Item
Resistance
Performance
Within specified resistance
allowance
As per clause 4-1
3
Temperature
coefficient at zeroeth
order of the resistance
Overload
4
Insulation resistance
- Between the electrodes
and insulation board:
1000MΩ or more
Shall be free of considerable
appearance anomalies and
shall be legible.
△R/R ± (2.5%+0.1Ω)
Test method (JIS C 5201-1)
As per 4.5.
Maximum voltage
applied (V)
Range of nominal resistance (Ω)
160k or more
Less than 20M
50
As per 4.8.
The sample resistance shall be attached to the test board
B. The test condition shall be condition B.
The sample resistance shall be attached to the test board
B. A voltage of twice the limiting element voltage shall be
applied for 2 seconds. The maximum overload voltage
and rated current shall be as per clause 4-1 of this
standard.
As per 4.13.
The test shall consist of taking measurements between the
electrodes and insulation casing of the sample resistor and
between the electrodes and insulation board of the sample
resistor when a test voltage is applied to a unit as
illustrated in the diagram between the measuring point A
of the metal block (positive electrode) and the measuring
point B of the metal plate.
The sample resistor shall be placed in the groove in the
metal plate, with the insulation casing facing downwards
or upwards so that the tip of the metal block will come to
about the middle between the electrodes of the sample
resistor. The metal resistor shall then be pressured at
1.0±0.2N {0.102±0.021kgf}.
The test voltage shall be a DC voltage of 100±15V. After
it is held for about 1 minute, the sample shall be
measured with that voltage applied to it. However, if the
meter reading stabilizes or it exceeds the specified
insulation resistance and goes further up, measurements
may be taken before a specified time is reached.
Measuring point A
of the metal block
Insulation plate
Measuring point B
of the metal plate
°
°
Insulation casing
Form No. 032
R0.5mm
Sample
resistor
Pressured with a
spring
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
No.
5
Item
Dielectric strength
Performance
- Between the electrodes
and insulation casing
- Between the electrodes
and insulation board
There shall be no
flashover, burn, dielectric
breakdown, or other
anomaly.
Designation of standard
Page
Product standard
7/19
Test method (JIS C 5202)
As per 4.6.
The test shall consist of applying a test voltage between
the measuring points A and B with the same unit and
method of installation as in the test on insulation
resistance and taking measurements between the
electrodes and insulation casing and between the
electrodes and insulation board of the sample resistor.
Before the test, measure the resistance.
The test voltage shall be an AC voltage (effective power
frequency) and shall be as follows:
Article
HCR32
Voltage (V)
500
Voltage shall be applied by increasing it gradually from
about 0V to 100V in a second and, after the voltage
10
reaches a specified level, holding it for 1 minute ± 0
seconds, then reducing the voltage gradually to about 0V.
The power capacity of the AC power shall not be applied.
After the test, the resistance shall be measured.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
8/19
6-2. Mechanical performance
The mechanical performance shall satisfy the requirements specified in the table below. The test method shall
be as per JIS C 5201-1.
No.
1
Item
Electrode strength
Performance
There shall be no
mechanical damage.
△R/R ± (1%+0.1Ω)
Test method (JIS C 5201-1)
As per 4.33.
The sample resistor shall be installed on the test board A.
The center of the sample resistor shall be within ±2mm
from the center of the stand.
The test board A shall, as shown in the figure, be supported
at 45mm respectively from the center. The center shall be
pressured at a rate of 1mm per second with a pressure jig
until its bend width is 1mm . While it is held for 5±1
seconds, its resistance shall be measured.
[Installed condition]
Unit: mm
Test board A
Resistor
Within ±2
Stand
φ5
45
45
[Test condition]
20
50
R340
1
Unit: mm
Pressure
↓
↑
Resistance meter
2
Heat resistance of
solder
Shall be free of considerable
appearance anomalies and
shall be legible.
△R/R ± (1%+0.1Ω)
3
Solderability
95% of the surface area of
the electrodes shall be
covered with new solder.
4
Solvent resistance
The sample shall be free of
considerable appearance
anomalies and shall be
legible.
Remark: The pressure jig and stand shall as a rule be made
of quenched steel (hardness: HB 183-255) or carbide
(Rockwell HRA 90 or more).
As per 4.18.
The solder temperature shall be 260±5°C.
The solder shall be dipped for 10±1 seconds.
The entire sample resistor shall be dipped in the flux and
solder.
After it is dipped in the solder, the sample shall be left at
room temperature for at least an hour and then its resistance
shall be measured.
As per 4.17.
The solder temperature shall be 235±5°C. The dip time shall
be 2±0.5 seconds. The entire sample resistor shall be dipped
in flux and solder. The inspection tools shall consist of a
projector or a magnifier with a magnification of 10X.
As per4.29.
The sample resistor shall be installed on the test board B.
The solvent shall be isopropyl alcohol. The sample shall be
dipped in a solvent at 20-25°C for 60±10 seconds. It shall
be left at room temperature for 5 minutes. The stamp
impression shall then be rubbed with cotton.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
9/19
CR-D-8049
6-3. Weatherproofness
The weatherproofness of the products shall satisfy the requirements specified in the table below. The test
method shall be as per JIS C 5201-1.
No.
1
Item
Temperature cycle
Performance
The sample shall be free of
considerable appearance
anomalies and shall be
legible.
△R/R ± (1%+0.05Ω)
As per 4.19.
The sample resistor shall be installed on the test board B.
The test temperatures shall be in the sequence specified in
the table.
The cycles 1 through 4 shall be repeated five times.
As per 4.24.
The sample resistor shall be installed on the test board B.
The test temperature shall be 40±2°C, with a temperature
between 90 and 95%RH.
The cycle of keeping the rated voltage on for 90 minutes
and off for 30 minutes shall be repeated for 1000 ± 48
.
0
2
Durability
(moisture
resistance load)
The sample shall be free of
considerable appearance
anomalies and shall be
legible.
△R/R ± (5%+0.1Ω)
3
Durability
(rated load)
The sample shall be free of
considerable appearance
anomalies and shall be
legible.
△R/R ± (5%+0.1Ω)
4
Stability
△R/R ± (5%+0.1Ω)
5
Moisture resistance
(steady state)
△R/R ± (5%+0.1Ω)
Test method (JIS C 5201-1)
1
2
3
4
-55±3°C
Room temperature
+125±2°C
Room temperature
30 minutes
2-3 minutes
30 minutes
2-3 minutes
As per 4.25.
The sample resistor shall be installed on the test board B.
The test temperature shall be 70±2°C.
The cycle of keeping the rated voltage on for 90 minutes
and off for 30 minutes shall be repeated for 1000 ± 48
.
0
However, the voltage applied shall not exceed the maximum
voltage.
As per 4.23.
The sample resistor shall be installed on the test board B.
The sample shall be left in a constant-temperature tank at
48
125±3°C for 1000± 0 hours.
It shall be left at room temperature for at least 1 hour, and
its resistance shall be measured.
As per 4.24.
The sample resistor shall be installed on the test board B.
The sample shall be left unloaded at 40±2°C and
90-95%RH for 1000± 48
hours.
0
It shall be left at room temperature for at least 1 hour, and
its resistance shall be measured.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
10/19
CR-D-8049
6-4. Test board
6-4-1.
Board A (HCR32)
b
c
40
φ4.5
f
Material: Glass epoxy resin
Board thickness: 1.6mm
Copper foil thickness: 35μm
: represents a resist pattern.
a
100
Code
a
b
c
f
6-4-2.
HCR32
2.2
5.0
2.0
(2.5)
Board B (HCR32)
Land
Unit: mm
f
c
b
5.08 5.08
3
a
25
Material: Glass epoxy resin
Board thickness: 1.6mm
Copper foil thickness:35 μm
: represents a resist pattern.
58.5
Code
a
b
c
f
HCR32
2.2
5.0
2.0
(3.3)
* The dimensions in ( ) in the table shall be used as a guide only, not as the standard.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
11/19
CR-D-8049
7. Packing
7-1. Taping
7-1-1.
Paper taping
HCR32
7-1-1-1. Composition
The leader shall have empty angular holes 250±50mm and a top cover tape portion 250±50mm. The empty
angular hole at the end shall be 250±50mm.
Part mount
End
Leader
Top cover tape
Angular hole punch carrier tape
Bottom cover tape
Direction of lead-in outlet
250±50mm
250±50mm
The chip resistor shall be able to move in the angular holes in the carrier tape. The taping shall be
composed as shown in the diagram shown below.
Label
Top cover tape
Angular hole punched carrier tape
Sprocket hole
Angular hole mount
Bottom cover tape
7-1-1-2. Dimensions
Unit: mm
1.75±0.10
2.00±0.05
4.00±0.10
φ1.50
+0.10
-0
Code
3.50±0.05
8.00±0.30
A
B
B
t
2.75
4.00±0.10
2.00±0.05
Form No. 032
A
HCR32
+0.10
2.00
−0.15
+0.10
3.57
−0.15
0.80±0.20
t
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
7-1-3.
Designation of standard
Page
Product standard
12/19
Performance
7-1-3-1. Peel strength of top cover tape
The top cover tape shall have a peel strength of 0.1-0.7N {10.2-71.4gf} when it is pulled at 165-180º and at
a speed of 300mm/min as shown in the diagram below.
Angular hole punched
carrier-type taping
Top cover tape
Direction
of pull
165°~180°
Carrier tape
Angular hole punch
Direction of draw
Bottom cover tape
7-1-3-2. Minimum bending radius
When the tape is bent to a radius of 30mm as shown in the diagram given below, the part shall be held on
the tape and shall be free of damage and other anomalies.
Paper taping
Minimum bending
radius (30mm)
7-1-3-3. Number of missing parts and taping errors
The number of missing parts shall not exceed 0.1% of the total number of parts (the indicated number) of
reels, or one, whichever is the larger, and shall not exceed 2 consecutively.
The part shall be taped with its label facing upwards. It shall not be taped with the front and rear sides
oriented wrongly.
7-1-3-4. Storage performance
When a taped part is stored at temperatures between -5 and +40°C, relative humidities between 40 and 60%,
without exposing it to direct sunlight, the tape shall not decline in sticking force or peel strength, shall not
come off, and shall not decline in any other performance.
The part shall be stored for one year.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
13/19
Article
HCR32
08
Dimensions (mm)
A
11.4±1.1
2±0.2
Q'ty/reel
φ13±0.2
5,000 pcs
60°
60°
A
7-1-4-2. New type reel
Front side
Label
1
φ60 +
-0
φ180 +0
-3
Rear side
EIAJRRV0
EIAJRRV0
Article
HCR32
Unit: mm
B
10.5±2
EIAJ-RRM
Rear side
φ60 +1
-0
φ180 +0
-3
7-1-4. Shape and dimensions of plastic reel (material:Polystyrene)
A
7-1-4-1. Current type reel
Front side
Label
Dimensions
(mm) A
13.0±1.4
2±0.2
Q'ty/reel
φ13±0.2
φ21±0.8
5,000 pcs
60°
Form No. 032
60°
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
7-2.
Bulk
7-2-1.
Form of packing
Designation of standard
Page
Product standard
14/19
Label
Nylon bag
7-2-2.
Labeling
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Article
Nominal resistance
Resistance allowance
Quantity
Date Code
Lot No.
Name of manufacturer (method of indication: HOKURIKU)
Country of origin (method of indication: MADE IN JAPAN)
Indication of nonleadedness (method of indication: Pb(F))
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
15/19
8. Packing specifications
8-1. Inner case
8-1-1.
Inner case for taping
8-1-1-1. Packing method
The reels shall be contained in inner cases as specified below.
Number of reels
Dimension D (mm)
1
Inner case
15
190
180
1
27
2
38
D
Label
190
3
48
5
60
4
70
180
D
Label
189
186
7
122
D
Label
189
186
15
Label
244
D
8-1-1-2. Markings on inner cases
All inner cases shall be marked with the following:
(1) Article
(2) Nominal resistance
(3) Resistance allowance
(4) Quantity
(5) Date Code
(6) Name of manufacturer (method of indication: HOKURIKU)
(7) Country of origin (method of indication: MADE IN JAPAN)
(8) Indication of nonleadedness (method of indication: Pb(F))
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
8-1-2.
Designation of standard
Page
Product standard
16/19
Inner case of bulk casing
8-1-2-1. Form of packing
8-1-2-2. Markings
All inner cases shall be marked with the following:
(1) User name
(2) Article
(3) Nominal resistance
(4) Resistance allowance
(5) Quantity
(6) Name of manufacturer (method of indication: HOKURIKU)
(7) Country of origin (method of indication: MADE IN JAPAN)
(8) Indication of nonleadedness (method of indication: Pb(F))
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
CR-D-8049
Designation of standard
Page
Product standard
17/19
8-2. Outer cases
L
205
265
390
520
390
520
645
Package size (mm)
W
140
205
205
205
400
400
400
L
H
200
200
200
200
200
200
200
W
H
9. Operating instructions
9-1. Storage conditions
It is guaranteed that the product will retain normal solderability for one year in the standard state as per JIS C
5201-1, clause 4.2 (at temperatures between 15 and 35°C and relative humidities between 25 and 75%).
9-2. Environment
When in contact with a gaseous body of an ammonia, ion, or halogen compound, the solder plating on the
electrodes will corrode, resulting in trouble with solderability or a wire break. The product shall therefore not
be used under such conditions.
9-3. Work with a soldering iron (including solder corrections)
Solderability shall be ensured by applying the tip of the rod gently to the part to be soldered so that the chip
will not float. The temperature of the rod tip shall not exceed 380°C, with a soldering time of no more than 3
seconds/operation. The soldering of the same electrode shall be finished with no more than three operations.
If more than three operations are required, the part shall be replaced with a new one.
9-4. Flow solder
The solder shall be coated first with flux and then preheated (generally at 130-150°C for 1-3 minutes). The
solder bath shall be no more than 260°C, with a soldering time of no more than 10 seconds. The soldering time
for double waving shall be the sum of the two waves.
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
18/19
CR-D-8049
9-5. Reflow solder
Reflow condition(Recommendation):Sn-3.0Ag-0.5Cu
300
Peak Temperature
250~260℃、10sec.
250
230℃ or more
200
(℃)
150
30~60sec.
100
150~180℃
90±30sec.
50
0
9-6. Operating voltage
The conditions specified in clause 4-1 shall be used. At that time, care shall be taken not to let the product heat
itself. Particular care shall be taken of the HCR32 not to let them affect other parts, because they have large
rates of heat-up.
(°C)
Temperature rise
150
100
HCR32
50
0
50 100 150 200
300
400 (%)
Rated power ratio
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.
Standard No.
Revision code
Designation of standard
Page
Product standard
19/19
CR-D-8049
9-7. Recommended land pattern
The chart below shows the recommended land dimensions.
a
c
Article
b
HCR32
抵抗器
a
2.2
Dimensions (mm)
b
5.0
c
1.5
はんだランド
9-8. Layout
The products shall be so laid out as to minimize the impact that they may receive from the bend or deflection
of the board when it is divided. The products shall not be installed in places close to the dividing line or prone
to strains.
9-9. Low resistance
Low-resistance resistors shall be used with care because the resistance of the wiring may be a few percent of
that of the resistor.
9-10. Coating
Resin burying, coating, and similar operations may change the resistance greatly depending on the material
used. The material shall therefore be checked before use.
10. Industrial property rights
All disputes related to any industrial property right concerning the design or manufacture of any product or part
delivered to the client as per this standard will be solved by the manufacturer upon its own responsibility.
11. Other
11-1. No ozone-depleting substances are used.
11-2. No bromine-based substances are used.
11-3. These products do not apply to the Export Trade Control Ordinance table 1st to strategic and similar
materials.
11-4. This standard guarantees the quality of the parts as handled singly. When in use, they shall be evaluated
and checked as mounted on a product of the client.
11-5. The manufacturer will not take any responsibility for any trouble stemming from any action deviating
from any of the descriptions of this standard.
11-6. RoHS directive
The toxic six substances restricted by the RoHS directive are not used.
11-7. Country of origin
Japan
11-8. Production plant
Hokuriku Electric Industry Co., Ltd.
Affiliate: Asahi Denshi Co., Ltd.
358, Oienosyo, Asahi-machi, Shimo-niikawa-gun, Toyama-ken Prefecture 939-0722, Japan
TEL (0765) 82-1740 FAX (0765) 82-1739
Form No. 032
HOKURIKU ELECTRIC INDUSTRY CO., LTD.