Wire Wound Chip Balun Transformer – BW-S Series
Operating Temp. : -40℃~+85℃
FEATURES
●
●
●
●
Winding type realizes small size and low profile
Surface mount type
Low insertion loss at frequency range
Excellent solderability
APPLICATIONS
●
Balanced unbalanced transformation between antenna and cable (TV tuner)
PRODUCT IDENTIFICATION
B
①
①
W
②
Type
21
③
S
④
②
75
⑤
11
⑥
A01
⑦
③
T
⑧
F
⑨
B
Chip Balun Transformer
W
Structure
Winding Type
External Dimensions (L×W) (mm)
21
2.0×1.2
43
4.5×3.2
④
Type of Transformer
S
⑦
Characteristics Code
A01
B02
C01
D01
E01
Standard
⑤
75
50
Port Impedance
75
Ω
50Ω
⑥
Impedance Ratio
11
1:1
One to One
⑧
Packing
T
Tape & Reel
⑨
Hazardous Substance Free
Products
F
SHAPE AND DIMENSIONS
BW21S Series
1.2±0.2
Land Pattern
0.17
Unit: mm
2.0±0.2
(1)
(2)
(0.45)
1.2±0.2
(4)
(0.50)
(3)
(0.50)
Sunlord
(0.45)
Specifications subject to change without notice. Please check our website for latest information.
Revised 2017/04/15
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110
Tel:
0086-755-29832660
Fax:
0086-755-82269029
E-Mail:
sunlord@sunlordinc.com
SHAPE AND DIMENSIONS
BW43S Series
Land Pattern
Unit: mm
SPECIFICATIONS
BW21S TYPE
Part Number
Units
BW21S7511A01TF
BW21S5011A01TF
BW21S7511B02TF
BW21S7511C01TF
BW21S7511D01TF
BW21S7511E01TF
Freq. Range
MHz
45~870
45~870
50~1200
1000~1500
950~2150
400~1800
Port
Impedance
Ω
75/75
50/50
75/75
75/75
75/75
75/75
Insertion Loss
at Freq. Range (Max.)
dB
1.0
1.2
1.2
1.4
1.5
2.0
CMRR
at Freq. Range (Min.)
dB
20
20
20
20
20
10
Rated Power
dBm
27
27
27
27
27
27
BW43S TYPE
Part Number
Freq. Inductance
Range @50MHz
Port
Impedance
Insertion Loss
at Freq.
Range
DC
Resistance
Rated
Current
Rated
Voltage
Insulation
Resistance
(MΩ)
Units
MHz
uH
Ω
dB
Ω
mA
VDC
dB
BW43S5011C01TF 4~200 1.25 Typ
50/50
2.52 Typ
0.40 Max 540 Max
50
10 Min
BW43S5011E01TF 48~645 1.00 Typ
50/50
6.66 Typ
0.15 Max 960 Max
50
10 Min
※Products
with other electrical characteristics can be provided upon customer’s request. Please contact your local sales.
EQUIVALENT CIRCUIT
BW21S
BW43S
Sunlord
Specifications subject to change without notice. Please check our website for latest information.
Revised 2017/04/15
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110
Tel:
0086-755-29832660
Fax:
0086-755-82269029
E-Mail:
sunlord@sunlordinc.com
TYPICAL ELECTRICAL CHARACTERISTICS
BW21S7511A01TF
Insertion Loss Characteristics
0
CMRR Characteristics
45
-1
40
35
Insertion Loss(dB)
-2
CMRR(dB)
10
100
1000
10000
30
-3
25
-4
20
-5
15
-6
10
10
100
1000
10000
Frequency(MHz)
Frequency（MHz）
Frequency(MHz)
Frequency（MHz）
BW21S5011A01TF
Insertion Loss Characteristics
0
-1
Insertion Loss(dB)
-2
-3
-4
-5
-6
10
100
Frequency(MHz)
Frequency（MHz）
1000
CMRR Characteristics
Frequency（MHz）
BW21S7511B02TF
Insertion Loss Characteristics
CMRR Characteristics
Frequency（MHz）
Frequency（MHz）
Sunlord
Specifications subject to change without notice. Please check our website for latest information.
Revised 2017/04/15
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110
Tel:
0086-755-29832660
Fax:
0086-755-82269029
E-Mail:
sunlord@sunlordinc.com
TYPICAL ELECTRICAL CHARACTERISTICS
BW21S7511C01TF
Insertion Loss Characteristics
CMRR Characteristics
Frequency（MHz）
BW21S7511D01TF
Insertion Loss Characteristics
Frequency（MHz）
CMRR Characteristics
Frequency（MHz）
Frequency（MHz）
BW21S7511E01TF
Insertion Loss Characteristics
CMRR Characteristics
Frequency（MHz）
Frequency（MHz）
BW43S5011C01TF BW43S5011E01TF
Insertion Loss Characteristics
Sunlord
Specifications subject to change without notice. Please check our website for latest information.
Revised 2017/04/15
Sunlord Industrial Park, Dafuyuan Industrial Zone, Guanlan, Shenzhen, China 518110
Tel:
0086-755-29832660
Fax:
0086-755-82269029
E-Mail:
sunlord@sunlordinc.com
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