POWER TYPE
EU
RoHS
BGR
BWR
BSR
角½绕线电阻器（玻璃芯）
Rectangular Type Wire wound Resistors With Glass Core
角½绕线电阻器（陶瓷芯）
Rectangular Type Wire wound Resistors With Ceramic Core
角½金属氧化膜电阻器
Rectangular Type Metal Oxide Film Resistors
■ 负荷减½特性曲线
100
80
Derating Curve
1W 10W
15W
40W
Percent rated power
60
40
20
0
-40 -20
0 20
40
25
60
70
80 100 120 140 160 180 200 220 240 260 280
155
275
■ 额定值
Ratings
型 号
Type
BWR1
BWR2
BWR3
BWR5
BWR7
BWR10
BWR15
BWR20
BGR5
BGR7
BGR10
BGR15
BGR20
BGR30
BGR40
BSR2
BSR3
BSR5
BSR7
BSR10
BSR15
BSR20
型 号
Type
额定功率
Power
Rating
1W
2W
3W
5W
7W
10W
15W
20W
5W
7W
10W
15W
20W
30W
40W
2W
3W
5W
7W
10W
15W
20W
F:
±1%
1½56
1½160
1½300
1½300
1½360
1½390
1½390
1½390
–
–
–
–
–
–
–
–
–
–
–
–
–
–
电阻值范围
Resistance Range（Ω）
E24
G:
±2%
J:
±5%
K:
±10%
0.22½75 0.1½75
–
0.22½200 0.1½200
–
0.22½390 0.1½390
–
0.22½390 0.1½390
–
0.22½390 0.1½390
–
0.22½390 0.1½390
–
0.22½390 0.1½390
–
0.22½390 0.1½390
–
–
10½390 0.39½9.1
–
10½390 0.39½9.1
–
10½390 0.39½9.1
–
10½390 0.51½9.1
–
10½390 0.51½9.1
–
10½390 2.2½9.1
–
10½390 2.2½9.1
–
430½13k
–
–
430½27k
–
–
430½39k
–
–
430½56k
–
–
430½75k
–
–
430½56k
–
–
430½56k
–
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
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
X
–
–
–
–
–
–
–
–
6.1
8.2
11.0
18.8
22.3
–
–
–
–
6.1
8.2
11.0
18.5
22.0
Y
–
–
–
–
–
–
–
–
7.6
9.1
12.4
–
–
–
–
–
–
7.6
9.1
12.4
–
–
YS
–
–
–
–
–
–
–
–
6.6
7.8
10.4
–
–
–
–
–
–
6.6
7.8
10.4
–
–
Z
–
–
–
–
–
–
–
–
7.6
9.1
11.4
20.5
24.0
–
–
–
–
7.6
9.1
11.4
20.5
24.0
Ambient temperature
½状以及重量
Style & Weight（g/1pcs）
H
–
–
–
–
–
–
–
–
–
–
9.9
18.4
21.9
59.3
70.4
–
–
–
–
10.9
18.4
21.9
Q
–
–
–
–
–
–
–
–
–
–
–
18.6
22.1
59.6
70.6
–
–
–
–
–
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
–
–
–
–
–
–
–
–
–
–
–
24.6
28.1
74.2
85.2
–
–
–
–
–
24.6
28.1
QB
–
–
–
–
–
–
–
–
–
–
–
27.7
31.3
73.8
84.8
–
–
–
–
–
27.7
31.3
额定功率
Power Rating
额定周围温度
Rated Ambient Temp.
BWR1
1W
B□R2
2W
B□R3
3W
＋70℃
B□R5
5W
B□R7
7W
B□R10
10W
B□R15
15W
B□R20
20W
＋25℃
BGR30
30W
–
–
BGR40
40W
额定电压是
√
额定功率×公称电阻值所算出的值或表中最高½用电压两者中小的值为额定电压。
Rated voltage =
√
Power Rating×Resistance value or Max. working voltage, whichever is lower.
关于定制产品请和我们事先咨询。
Please consult with us in advance about custom-made products.
高功率型电阻器
High Power Type Resistors
最高½用电压（V）
Max. Working Voltage
BSR
BGR • BWR
–
250
300
350
500
E＝
√
P • R
700
700
750
最高过½½电压（V）
Max. Overload Voltage
BSR
BGR • BWR
–
500
600
700
1000
E＝
√
P • R • 10
1400
1400
1500
电阻温度系数
T.C.R.(×10
-6
/K)
BWR
BSR
BGR
–
–
±100
±300
±250
–
–
½用温度范围
Operating Temp. Range
－40℃½＋155℃
■ 品名构成
Type Designation
实例
Example
BWR
Product Code
BGR
BWR
BSR
Wire wound Glass core
Wire wound Ceramic core
Metal oxide film
3
Power
Rating
See table
above
C
1
N
2
100
Nominal
Resistance
F 4 digits
G,J,K 3 digits
J
Resistance
Tolerance
F ±1%
G ±2%
J ±5%
K ±10%
Terminal
Surface Material
C SnCu
Style
: S style
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
T
Sn
※1 不含铅产品的记号。
Lead-Free plated terminal symbols.C（SnCu）：N, E, S and P styles T（Sn）：X, Y, YS, Z, H and Q styles
※2 对于S式样，没有相应内容。
No indication on style means S style.
欲知关于此产品含有的环境负荷物质详情（除EU-RoHS以外），请与我们联系。
Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS.
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½引起重大损失的设备上时，请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可½导致人身事故或严重损坏。
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.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Nov. 2018
www.koaglobal.com
■ 特点
Features
z
大功率型电阻器
z
陶瓷壳阻燃性
/
绝缘性电阻器
z
抗脉冲防止突入电流性½优异
z
端子无铅品，符合欧盟RoHS。
z
High-power resistor.
z
Using flame-retardant/insulated ceramic case.
z
Excellent in anti-pulse and inrush current.
z
Products meet EU-RoHS requirements.
■ 外½尺寸
Dimensions
①S
Style
1.5Max.
1.5Max.
φd
H
型号
Type
BWR1
・BSR2
BWR2
・
BWR3 BSR3
BWR5・BSR5
・
BWR7 BSR7
・
BWR10 BSR10
BWR15・
BSR15
BWR20・
BSR20
尺寸
Dimensions
（mm）
L
13±1.0
18±1.5
22±1.5
35±1.5
48±1.5
63.5±1.5
W
5.5±1.0
6.3±1.0
8.0±1.0
9.5±1.0
12.5±1.2
12.5±1.5
H
5.5±1.0
6.3±1.0
8.0±1.0
9.5±1.0
12.5±1.2
12.5±1.5
±3
30
d±0.1
0.6
L
W
35
0.8
②N
Style
W
D
③E
Style
W
D
型号
Type
尺寸
W±1
11
12
13
16
9.5
P
4.5±
1
2
φ0.8±0.1
4.5±
1
・BSR2N
BWR2N
・BSR3N
BWR3N
・BSR5N
BWR5N
・BSR7N
BWR7N
BWR10N・BSR10N
BWR5E・
BSR5E
P
Dimensions
（mm）
P
＋2
D±1
H±1.5
－1
7
20.5
8
25
5
25.5
9
38.5
12
35
7.5
9.5
23.5
5
H
1MAX.
④P
Style
（P）
φ0.8
15±3
2
H
型号
Type
BWR5P
L
23±1.5
尺寸
Dimensions
（mm）
W±1.5
H±1.5
9.5
9.5
（P）
20
L
W
（ ）内的尺寸为参考值。
Parenthesized dimensions are for reference.
请不要插入电路板中½用。
只对产品焊接，产品会因外部受力而焊接强度不足，所以请另外检讨其
他固定方法。
Please refrain from using these parts as a board-insertion type.
Only soldering doesn’t have enough joint strength.
Additional fixation is recommended.
⑤X
Style
（5W½10W）
L
W
H
⑥Y
Style
（15W，20W）
1±0.5
L
15±1.5 H
W
L
H
W
⑦YS
Style
高功率型电阻器
High Power Type Resistors
L
H
P
7.3±0.5
7.5±0.3
0.5
0.5
0.75
1.6
1.4
0.85
4.5
10±
1
0.85
W
H
10±
2
1
0.5
P
P
10±0.5
P
t 0.4
5±0.3
1.6
1.4
0.7
4.5
3
2.7
1.0
7
型号
Type
・
BGR5X・
BSR5X・
BGR5Y・
BSR5Y・
BGR5YS BSR5YS
・
BGR7X・
BSR7X・
BGR7Y・
BSR7Y・
BGR7YS BSR7YS
・BSR10Y
BGR10YS BSR10YS
・
・
BGR10X・BSR10X・
BGR10Y
BGR15X・
BSR15X
BGR20X・
BSR20X
L±1.5
27
35
48
63.5
尺寸
Dimensions
（mm）
H±1.0
W±1.0
9.5
12.5
9.5
12.5
0.75
1.6
1.4
4.5
25±
2
1
P±1.5
15
22.5
35
32.5
47.5
2
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½引起重大损失的设备上时，请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可½导致人身事故或严重损坏。
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.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Nov. 2018
www.koaglobal.com
POWER TYPE
■ 外½尺寸
Dimensions
⑧Z
Style
（5W½10W）
L
H
W
EU
RoHS
型号
Type
W
尺寸
Dimensions
（mm）
（15W，20W）
1±0.5
L
H
L±1.5
27
35
48
63.5
W±1.0
09.5
12.5
H±1.0
09.5
12.5
P
4.5±0.5 22±
2
1
P
3.5
5.0
1.5
1.5
1
7.3±0.3
0.5
2
1.5
5±0.5 30±
2
1
t 0.5
t 0.5
BGR5Z・BSR5Z
・BSR7Z
BGR7Z
・BSR10Z
BGR10Z
・BSR15Z
BGR15Z
・BSR20Z
BGR20Z
15
＋6
－2
22.5
＋6
－2
35
＋6
－2
32.5
＋4
－0
＋4
47.5
－0
P
10±0.3
0.5
（P）
（P）
W
1
W
1
0.85
1.1
t
t
H
1
L
1
L
1
L
2
L
H
2
H
2
L
2
⑨H
Style
（P）
W
1
⑩Q
Style
（P）
W
1
（15W,
20W）
W
1±0.5
1±0.5
W
H
R0.65
R0.65
3.2
3.2
（30W,
40W）
W1 W1
φf φf
L
φf
H
1±0.5
H
1±0.5
L
1
L
L
2
L
1
W
L
L
2
W
R0.65
W1
φf
3.2
H
2
4.1
型号
Type
BGR10H・BSR10H
BGR15H・BSR15H
BGR20H・BSR20H
BGR30H
BGR40H
BGR15Q・BSR15Q
BGR20Q・BSR20Q
BGR30Q
BGR40Q
尺寸
Dimensions
（mm）
L
48±1.5
63.5±2
75±2.5
90±2.5
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
7.0
10.0
W
9.5±1.0
12.5±1.2
19.0±1.5
12.5±1.2
19.0±1.5
W
1
5.0
6.0
7.5
4.75
6.3
H
2
H
9.5±1.0
12.5±1.5
19.0±1.5
12.5±1.5
19.0±1.5
H
1
±1.0
7.0＋
8.5＋
11.0＋
13.0＋
12.0＋
H
2
—
（P）
35
34.5
49.5
56
71
34.5
49.5
56
71
t
0.4
0.5
4.1
（φf）
2.0
2.5
3.0
6.35
8.0
0.5
0.8
（ ）内的尺寸为参考值。Parenthesized
dimensions are for reference.
HA・QA Style
HB・QB Style
P
3
（P
2
）
t1
K
P
3
（P
2
）
高功率型电阻器
High Power Type Resistors
φ4.2
（10W:φ4）
W
3
（W
2
）
K
t
1
W
3
（W
2
）
φ4.2
型号
Type
（P
2
）
BGR10HA・BSR10HA
BGR15HA・BSR15HA・BGR15QA・BSR15QA
BGR15HB・BSR15HB・BGR15QB・BSR15QB
8.0
BGR20HA・BSR20HA・BGR20QA・BSR20QA
BGR20HB・BSR20HB・BGR20QB・BSR20QB
BGR30HA・BGR30QA
BGR30HB・BGR30QB
10
BGR40HA・BGR40QA
BGR40HB・BGR40QB
尺寸
Dimensions
（mm）
P
3
±1
（W
2
）
W
3
±0.3
K±0.3
t
1
0.6
6
12
3.0
2.8
0.8
8
18
3.0
3.0
（ ）内的尺寸为参考值。
Parenthesized dimensions are for reference.
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½引起重大损失的设备上时，请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可½导致人身事故或严重损坏。
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.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
www.koaglobal.com
4.1
t
t
H
1
H
1
H
2
H
2
H
H
1
—
1.7
Nov. 2018
■ 温度上升
Temperature Rise (Ref.)
①S
Style
250
Measuring
200 Point
Temperature rise
150
100
50
0
Temperature rise
5w
3w
2w
20w
15w
10w
7w
200
Temperature rise
Measuring
150 Point
100
50
0
②N
Style
③E
Style
A
Measuring
Point
B
Temperature rise
200 Measuring
Point
20w
15w
10w
7w
5w
3w
2w
150
100
50
0
10w
7w
5w
3w
2w
200
150
100
50
0
A
B
50
100
Power rating ratio %
50
100
Power rating ratio %
50
100
Power rating ratio %
50
100
Power rating ratio %
④X
Style
200
150
100
50
0
Measuring
Point
10w
7w
5w
20w
15w
⑤Y
Style
200
150
100
50
0
Measuring
Point
⑥YS
Style
200
150
100
50
0
Measuring
Point
⑦Z
Style
200
Temperature rise
⑧H,
Q Style
Temperature rise
Temperature rise
Temperature rise
100
50
0
20w
15w
10w
7w
5w
50
100
Power rating ratio %
Temperature rise
150 Measuring
Point
Measuring
300 Point
200
100
0
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 %
■ 性½
Performance
试验项目
Test Items
电阻值
Resistance
电阻温度系数
T.C.R.
耐焊接热
Resistance to soldering
heat
耐湿负荷
Moisture resistance
在70℃时的耐久性
Endurance at 70℃
标准值
Performance Requirements
ΔR±％
保证值
Limit
在规定的允许偏差内
Within specified tolerance
在规定的允许偏差内
Within specified tolerance
1：BWR, BSR
2：BGR
3：BWR, BGR
5：BSR
3：BWR
5：BGR, BSR
代表值
–
–
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
Typical
试验方法
Test Methods
25℃
＋25℃/－55℃
and
＋25℃/＋125℃
350℃±10℃, 3.5s
Power rating
×1/10,
40℃, 90%½95%RH, 1000h
1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle
额定电压,
70℃, 1000小时, 1.5小时打开 / 0.5小时关闭的周期
Rated voltage, 70℃, 1000h, 1.5h ON/0.5h OFF cycle
■ ½用注意事项
Precautions for Use
高功率型电阻器
High Power Type Resistors
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助焊剂等在本产品和安装的印刷电路板上附着离子性杂质时，其耐湿性•耐腐蚀性将受到½响。助焊剂内有时含有氯•酸等离子性物质，为除去这
些离子性物质应进行清洗。去除这些离子性物质时，或元件上有汗水、盐分等离子性物质附着时，请充分清洗。进行清洗时，请事先充分确认清
洗的可靠性并决定干燥条件，以免清洗后清洗溶剂残留在电阻器内部。请避免在未½底干燥的状态下通电或½用。
z
½用交流电路时，由于绕线构造，电路会产生电感成分和寄生容量，有可½发生振动等异常情况。在½用时请仔细考虑其他元件常数的离散情况。
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Ionic impurities such as flux etc. attached to these products or mounted onto PCB, negatively affect the moisture resistance, corrosion resistance, etc. The flux
may contain ionic substances like chlorine, acid, etc. Wash thoroughly these ionic substances including sweat and salt. Confirm the reliability of washing and
decide the dry conditions so that washing solvent is not to be remained inside the product after washing. Do not apply electricity to the product nor use the
product itself until the drying is fully completed.
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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.
本产品目½中记½½的产品规格如有变更，恕不一一奉告。订购以及½用之前，请仔细确认规格表的内容。
用于½½½设备、医疗设备、航空设备以及其它涉及人身安全、或可½引起重大损失的设备上时，请务必事先与我公司联系。这些产品在这类用途中出现故障或失灵可½导致人身事故或严重损坏。
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.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Nov. 2018
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