Rectangular Type Wirewound Resistors With Glass Core
Rectangular Type Wirewound Resistors With Ceramic Core
Rectangular Type Metal Oxide Film Resistors
■Derating Curve
100
1W∼10W
15W∼40W
Percent rated power
(%)
80
60
40
20
0
-40 -20
0 20
40
25
Ambient temperature
(℃)
60 80 100 120 140 160 180 200 220 240 260 280
70
155
275
For resistors operated at an ambient temperature or higher,the power shall be
derated in accordance with the above derating curve.
■Ratings
Type
BWR1
BWR2
BWR3
BWR5
BWR7
BWR10
BWR15
BWR20
BGR5
BGR7
BGR10
BGR15
BGR20
BGR30
BGR40
BSR2
BSR3
BSR5
BSR7
BSR10
BSR15
BSR20
Power
Rating
1W
2W
3W
5W
7W
10W
15W
20W
5W
7W
10W
15W
20W
30W
40W
2W
3W
5W
7W
10W
15W
20W
Resistance Range(Ω)
E24
F:±1%
1½56
1½160
1½300
1½300
1½360
1½390
1½390
1½390
—
—
—
—
—
—
—
—
—
—
—
—
—
—
G:±2%
0.22½75
0.22½200
0.22½390
0.22½390
0.22½390
0.22½390
0.22½390
0.22½390
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Rated Ambient
Temperature
J:±5%
0.1½75
0.1½200
0.1½390
0.1½390
0.1½390
0.1½390
0.1½390
0.1½390
10½390
10½390
10½390
10½390
10½390
10½390
10½390
430½13k
430½27k
430½51k
430½56k
430½75k
430½56k
430½56k
K:±10%
—
—
—
—
—
—
—
—
0.39½9.1
0.39½9.1
0.39½9.1
0.51½9.1
0.51½9.1
2.2½9.1
2.2½9.1
—
—
—
—
—
—
—
S
1.3
2.1
3.9
5.1
7.5
10.2
18.8
23.3
—
—
—
—
—
—
—
2.1
3.9
5.1
7.4
10.2
18.8
23.3
N
—
3.9
5.9
7.2
10.8
15.0
—
—
—
—
—
—
—
—
—
3.8
5.9
7.2
10.8
15.0
—
—
E
—
—
—
5.7
—
—
—
—
—
—
—
—
—
—
—
—
—
5.7
—
—
—
—
P
—
—
—
5.6
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Style & Weight(g/1pcs)
X
Y
YS
Z
H
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6.1
7.6
6.6
7.6
—
8.2
9.1
7.8
9.1
—
11.0 12.4 10.4 11.4
9.9
18.8
—
— 20.5 18.4
22.3
—
— 24.0 21.9
—
—
—
— 59.3
—
—
—
— 70.4
—
—
—
—
—
—
—
—
—
—
6.1
7.6
6.6
7.6
—
8.2
9.1
7.8
9.1
—
11.0 12.4 10.4 11.4 10.9
18.5
—
— 20.5 18.4
22.0
—
— 24.0 21.9
Q
—
—
—
—
—
—
—
—
6.2
7.8
10.7
18.6
22.1
59.6
70.6
—
—
6.2
7.8
10.7
18.6
22.1
HA
—
—
—
—
—
—
—
—
—
—
13.6
24.4
27.9
73.9
85.0
—
—
—
—
13.7
24.4
27.9
HB
—
—
—
—
—
—
—
—
—
—
—
27.5
31.0
73.5
84.6
—
—
—
—
—
27.5
31.0
QA
—
—
—
—
—
—
—
—
—
—
14.5
24.6
28.1
74.2
85.2
—
—
—
—
14.5
24.6
28.1
QB
—
—
—
—
—
—
—
—
—
—
—
27.7
31.3
73.8
84.8
—
—
—
—
—
27.7
31.3
Type
BWR1
B□R2
B□R3
B□R5
B□R7
B□R10
B□R15
B□R20
BGR30
BGR40
Power Rating
1W
2W
3W
5W
7W
10W
15W
20W
30W
40W
Max.Working Voltage
(V)
BSR
—
250
300
350
500
700
700
750
—
BGR BWR
・
Max.Overload Voltage
(V)
BSR
—
500
600
700
1000
1400
1400
1500
—
BGR・
BWR
T.C.R.(×10
−6
/K)
BWR
BSR
—
BGR
—
Operating Temp.
Range
High Power Type Resistors
+70℃
E=
√ ̄ ̄
P・R
E=
√ ̄ ̄ ̄ ̄
P R 10
・・
±100
±300
±250
-40℃½+155℃
+25℃
—
—
Rated voltage=
√ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
or Max. working voltage, whichever is lower.
Power Rating×Resistance value
Please consult with us in advance about custom-made products.
■Type Designation
Example
BWR
Product
Code
BGR:Wirewound
(Glass core)
BWR:Wirewound
(Ceramic core)
BSR:Metal oxide film
3
Power
Rating
See table
above
C
Terminal
※1
Surface Material
C:SnCu
T:Sn
N
Style
※2
Nil:S style
N:N style
E:E style
P:P style
X:X style
Y:Y style
YS:YS style
Z:Z style
H:H style
Q:Q style
HA:HA style
HB:HB style
QA:QA style
QB:QB style
100
Nominal
Resistance
F:4 digits
G,J,K:3 digits
J
Resistance
Tolerance
F:±1%
G:±2%
J:±5%
K:±10%
※1 Lead-Free plated terminal symbols.
C
(SnCu)
:N, E, S and P styles
T
(Sn)
:X, Y, YS, Z, H and Q styles
※2 No indication on style means S style.
Contact us when you have control request for environmental
hazardous material other than the substance specified by
EU-RoHS.
178
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
■Features
・High-power
resistor.
・Using
flame-retardant/insulated ceramic case.
・Excellent
in anti-pulse and inrush current.
・Products
meet EU-RoHS requirements.
■Dimensions
①S
Style
1.5Max.
1.5Max.
φd
H
Type
BWR1C
BWR2C・
BSR2C
BWR3C・
BSR3C
BWR5C・
BSR5C
BWR7C・BSR7C
BWR10C・BSR10C
BWR15C
・BSR15C
BWR20C・
BSR20C
L
13±1.0
18±1.5
22±1.5
35±1.5
48±1.5
63.5±1.5
Dimensions(mm)
W
H
5.5±1.0
5.5±1.0
6.3±1.0
6.3±1.0
8.0±1.0
8.0±1.0
9.5±1.0
12.5±1.2
12.5±1.5
9.5±1.0
12.5±1.2
12.5±1.5
ℓ±3
30
d±0.1
0.6
35
0.8
L
W
②N
Style
W
D
③E
Style
W
D
Type
BWR2CN・
BSR2CN
BWR3CN・BSR3CN
BWR5CN・BSR5CN
BWR7CN・BSR7CN
BWR10CN・BSR10CN
BWR5CE・BSR5CE
W±1
11
12
13
16
9.5
P
4.5±
1
2
φ0.8±0.1
4.5±
1
2
Dimensions(mm)
D±1
H±1.5
7
20.5
8
25
25.5
9
38.5
12
35
9.5
23.5
P
+ 2
−1
5
7.5
5
H
H
1MAX.
P
④P
Style
(P)
φ0.8
Type
BWR5CP
15±3
L
23±1.5
Dimensions(mm)
W±1.5
H±1.5
9.5
9.5
(P)
20
Parenthesized dimensions are for reference.
Please refrain from using these parts as a board-insertion type.
Only soldering doesn’ have enough joint strength.
t
Additional fixation is recommended.
L
W
⑤X
Style
(5W∼10W)
L
W
1±0.5
H
⑥Y
Style
(15W,20W)
L
15±1.5 H
W
L
H
W
⑦YS
Style
L
H
P
7.3±0.5
7.5±0.3
0.5
0.5
10±
1
2
W
H
10±
2
1
0.5
P
25±
2
1
High Power Type Resistors
High Power Type Resistors
P
10±0.5
P
t 0.4
5±0.3
1.6
1.4
0.7
4.5
0.75
0.75
3
2.7
1.0
1.6
1.4
4.5
1.4
0.85
4.5
1.6
7
0.85
Type
BGR5TX
・BSR5TX
・BGR5TY BSR5TY BGR5TYS・BSR5TYS
・
・
BGR7TX
・BSR7TX
・BGR7TY
・BSR7TY BGR7TYS・BSR7TYS
・
BGR10TX
・BSR10TX
・BGR10TY
・BSR10TY
・BGR10TYS・
BSR10TYS
BGR15TX
・BSR15TX
BGR20TX
・BSR20TX
L±1.5
27
35
48
63.5
Dimensions(mm)
W±1.0
H±1.0
9.5
12.5
9.5
12.5
P±1.5
15
22.5
35
32.5
47.5
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
179
POWER TYPE
■Dimensions
⑧Z
Style
(5W∼10W)
L
H
W
Type
(15W, 20W)
1±0.5
L
H
W
P
4.5±0.5 22±
2
1
P
1.5
1.5
1
7.3±0.3
0.5
3.5
2
1.5
5±0.5 30±
2
1
t 0.5
t 0.5
BGR5TZ BSR5TZ
・
BGR7TZ・
BSR7TZ
BGR10TZ
・BSR10TZ
BGR15TZ
・BSR15TZ
BGR20TZ BSR20TZ
・
L±1.5
27
35
48
63.5
Dimensions(mm)
W±1.0
H±1.0
09.5
12.5
09.5
12.5
P
15
+6
-2
22.5
+6
-2
35
+6
-2
32.5
+4
-0
47.5
+4
-0
10±0.3
0.5
5.0
(P) (P)
W
1
W
1
t
H
1
L
1
L
12
L
L
H
2
H
2
⑨H
Style
(P)
W
1
⑩Q
Style
(P)
W
1
(15W, 20W)
L
2
1±0.5
1±0.5
W
(5W,7W,10W,30W,40W)
W
φf
φf
H
3
L
R0.65 R0.65
3.2
3.2
H
H
2
φf
H
1±0.5
H
1±0.5
L
1
L
L
2
L
1
L
2
W
W
R0.65
φf
L
H
2
3.2
Type
BGR10TH・BSR10TH
BGR15TH・BSR15TH
BGR20TH・BSR20TH
BGR30TH
BGR40TH
BGR5TQ・BSR5TQ
BGR7TQ・BSR7TQ
BGR10TQ・BSR10TQ
BGR15TQ・BSR15TQ
BGR20TQ・BSR20TQ
BGR30TQ
BGR40TQ
L
48±1.5
63.5±2
75±2.5
90±2.5
27±1.5
35±1.5
48±1.5
63.5±2
75±2.5
90±2.5
L
1
25±1.0
40±1.2
—
—
25±1.0
40±1.2
L
2
4.5
7.0
10.0
—
—
4.5
7.0
10.0
W
9.5±1.0
12.5±1.2
19.0±1.5
9.5±1.0
W
1
5.0
6.0
7.5
Dimensions(mm)
H
H
1
±1.0
9.5±1.0
7.0
12.5±1.2
19.0±1.5
9.5±1.0
8.5
11.0
10.5
13.0
12.0
H
2
H
2
H
3
(H
3
)
—
—
(P)
35
34.5
49.5
56
71
15.0
22.5
35.0
34.5
49.5
56
71
t
0.4
0.5
H
3
t
t
H
1
H
1
H
2
H
H
1
0.85
1.1
t
(φf)
2.0
2.5
3.0
2.2
6.5
6.35
8.0
3.3
—
4.1
4.75
12.5±1.2
19.0±1.5
6.3
12.5±1.2
19.0±1.5
0.5
—
0.8
1.7
Parenthesized dimensions are for reference.
⑪HA・QA
Style
⑫HB・QB
Style
High Power Type Resistors
P
3
(P
2
)
t1
K
P
3
(P
2
)
K
t
1
W
3
(W
2
)
φ4.2
φ4.2
(10W:φ4)
W
3
(W
2
)
Type
BGR10THA・BSR10THA・BGR10TQA・BSR10TQA
BGR15THA・BSR15THA・BGR15TQA・BSR15TQA
BGR15THB・BSR15THB・BGR15TQB・BSR15TQB
BGR20THA・BSR20THA・BGR20TQA・BSR20TQA
BGR20THB・BSR20THB・BGR20TQB・BSR20TQB
BGR30THA・BGR30TQA
BGR30THB・BGR30TQB
BGR40THA・BGR40TQA
BGR40THB・BGR40TQB
Parenthesized dimensions are for reference.
(P )
2
P ±1
3
Dimensions(mm)
(W
2
)
W
3
±0.3
K±0.3
2.8
3.0
t
1
0.6
8.0
6
12
3.0
0.8
10
8
18
3.0
3.0
180
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
■Temperature Rise (Ref.)
①S
Style
S スタイル A点図
250
Temperature rise(℃)
200
150
100
50
0
Measuring
Point
20w
15w
10w
7w
S スタイル B点図
②N
Style
③E
Style
A
Measuring
Point
Temperature rise(℃)
5w
3w
2w
150
100
50
0
Measuring
Point
20w
15w
10w
7w
5w
3w
2w
Temperature rise(℃)
Temperature rise(℃)
200
Measuring
200 Point
150
100
50
0
B
200
150
100
50
0
A
B
10w
7w
5w
3w
2w
50
100
Power rating ratio
(%)
50
100
Power rating ratio
(%)
50
100
Power rating ratio
(%)
50
100
Power rating ratio
(%)
④X Style
200
Temperature rise(℃)
⑤Y
Style
200
Temperature rise(℃)
⑥YS
Style
200
Temperature rise(℃)
⑦Z
Style
200
Temperature rise(℃)
⑧H,
Q Style
150
100
50
0
Measuring
Point
10w
7w
5w
20w
15w
150
100
50
0
Measuring
Point
150
100
50
0
Measuring
Point
Temperature rise(℃)
Measuring
150 Point
100
50
0
20w
15w
10w
7w
5w
50
100
Power rating ratio
(%)
300
200
100
0
Measuring
Point
40w
30w
20w
15w
10w
10w
7w
5w
50
100
Power rating ratio
(%)
10w
7w
5w
50
100
Power rating ratio
(%)
50
100
Power rating ratio
(%)
50
100
Power rating ratio
(%)
■Performance
Test Items
Resistance
T.C.R.
Resistance to soldering heat
Performance Requirements
ΔR±%
Limit
Within specified tolerance
Within specified T.C.R.
1:BWR, BSR
2:BGR
3:BWR, BGR
5:BSR
3:BWR
5:BGR, BSR
Typical
—
—
0.8:BWR
1.7:BGR
0.9:BSR
2.4:BWR
2.55:BGR
4.5:BSR
2.4:BWR
4.25:BGR
4.5:BSR
25℃
+25℃/-55℃ and +25℃/+125℃
350℃±10℃、3.5s
Power rating×1/10、40℃、90%½95%RH、1000h
1.5h ON/0.5h OFF cycle
25℃ or 70℃, rated voltage, 1000h,
1.5h ON/0.5h OFF cycle
Test Methods
Moisture resistance
Endurance at 25℃ or 70℃
■Precautions for Use
・
The products attached by ionic impurities negatively affects their moisture resistance, corrosion resistance, etc. Please pay careful attention to products handling as well
as storage, mounting conditions and environment.
・
When the pulse including surge is impressed to the resistor, it may cause disconnection. Please confirm us about the conditions for use in advance.
・
In case of using them for an AC circuit, abnormal phenomena like oscillation etc. occasionally happen as they have an inductance or a parasitic capacitance
because of their wiring structures. Use them by taking the dispersion of constants of other components into the consideration.
High Power Type Resistors
High Power Type Resistors
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
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