Switch/Rotary Variable Attenuator

Rotary Variable Attenuator(VAB&VAE Series) RF Component Supplier

Patent product

China Patent No. : CN 2008 1 0144258
USA Patent No. : US 8,476,544 B2
Japan Patent No. : 2011-524168
Taiwan Patent No. : I 393347


Features
● Input power: 2W or 5W
● Available in continuous and step adjusting
● 5W can satisfy the high power need of telecom operators
● Wide frequency range: DC ~ 3GHz
● Low VSWR, Low ion loss
● Size and format is much similar and customers who are used to traditional rotary variable attenuator (Single Dial & Dual Concentric Series) can directly use Yantel parts without changes of their equipment
● Sealed structure moisture-proof & damp-proof, can be work outdoors in harsh condition
● Easy to operate, adjustment results visually readable
● Step series has locking devices within each attenuation, shockproof capability
● Can reach over 10000 times adjustment
● Soon delivery,mass production can be arranged immediately
● Competive prices, 40%-50% lower than equivalents, good for tight budget projects
● Widely applied in the DAS Tray,DAS Interface Panels,DAS System,POI System,Small Repeater,Active/Passive Repeater etc
 
Model Description
VAB
 ** 
 ** 
 * 
 * 
 * 
 * 
Attenuation
Step value
Connector Type
Connector Position
Power
Impedance
e.g.: VAB3101S
Attenuation Range: 31 represents 0~31dB
Step value: 01 represents step value 1dB
Connector Type: SMA, N or BNC etc
Connector Position: "F" represents connectors on upside, "L" represents connectors on left side, "R" represents connectors on right side, "D" represents connectors on underside, "A" or "S" or "B"represents back connectors, "no code" represents left and right connectors
Power: "2" represents 2W, "5" represents 5W
Impedance: "B" represents 75Ω impedance, "no code" represents 50Ω impedance　　　　

Application Notes of Variable Attenuation
◆The Application of Yantel Variable Attenuator for DAS and POI
◆VAB directly replaces traditional dial design variable attenuator
SMA Type Series
Step Type Spec.   
● Frequency range: DC ~ 2.7GHz　● Attenuation Range: 0-31(dB)● Power rating: 2W or 5W　　
● Impedance: 50Ω ● Operating temperature: -40℃ ~ +85℃
Model
Attenuation Range
(dB)
Power
(W)
Step Value
(dB)
Attenuation Accuracy
（dB）

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA tupe
WxHxL
(mm)
DC ~ 2.5GHz
DC ~ 2.7GHz
DC ~ 1GHz
1 ~ 2GHz
2 ~ 2.7GHz
DC ~ 2GHz
2 ~ 2.7GHz
0 ~ 11
2 or 5
1
±0.5
-0.5~+0.7
1.1
1.1
1.15
0.2
0.4
32*37.35*39
0 ~ 31
2 or 5
1
±0.7
-1.0~+1.2
1.1
1.15
1.2
0.3
0.6
32*84*39
Note: for more information about part dimensions, please download datasheets from the t accordingly.
Outline Dimensions (unit:mm & inch)
VAB1101SF(0-11dB, 1dB step)
 
VAB3101SF(0-31dB, 1dB step)
                                     
                                     
SMA Type Series
        (back connectors)
Step Type Spec.   
● Frequency range: DC ~ 2.7GHz　● Attenuation Range: 0-11(dB) or 0-31(dB) or 0-51(dB)　● Power rating: 2W or 5W　
● Impedance: 50Ω　● Operating temperature: -40℃ ~ +85℃
Model
Attenuation Range
(dB)
Power
(W)
Step Value
(dB)
Attenuation Accuracy
（dB） DC~2.7GHz

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA type
WxHxL
(mm)
DC ~ 1GHz
1 ~ 2GHz
2 ~ 2.7GHz
DC ~ 2GHz
2 ~ 2.7GHz
0 ~ 11
2
1
-0.5~+0.7
1.10
1.10
1.15
0.2
0.4
32*34.8*39
0 ~ 11
5
1
±0.5
1.10
1.10
1.15
0.2
0.4
32*34.8*39
VAB3101SB2 New
0 ~ 31
2
1
±1
1.10
1.25
1.35
0.5
0.9
32*73.53*40
VAB3101SB5 New
0 ~ 31
5
1
±1
1.10
1.25
1.35
0.5
0.9
32*73.53*40
0 ~ 31
2
1
±0.65
1.10
1.15
1.20
0.5
0.65
32*34.35*53.6
0 ~ 31
5
1
±0.65
1.10
1.10
1.15
0.3
0.65
32*34.35*53.6
0 ~ 31
2
1
-0.5~+0.8
1.10
1.15
1.20
0.5
0.65
34*34.1*57.2
0 ~ 31
5
1
-0.5~+0.8
1.10
1.15
1.20
0.5
0.65
34*34.1*57.2
0 ~ 51
2
1
-0.65~+1
1.15
1.2
1.25
0.55
0.85
47.8*34.35*53
0 ~ 51
5
1
-0.65~+1.2
1.10
1.10
1.15
0.55
0.85
47.8*34.35*53
Note: for more information about part dimensions, please download datasheets from the t accordingly.
Outline Dimensions (unit:mm & inch)
VAB1101SA(0-11dB, 1dB step)
 
VAB3101SB(0-31dB, 1dB step)


 
VAB3101SA(0-31dB, 1dB step)
 
VAB3101SS(0-31dB, 1dB step)
 
VAB5101SA(0-51dB, 1dB step)
                                     
                                     

SMA Type Series
(left and right connectors)
Step Type Spec.   
● Frequency range: DC to 2.7GHz　● Attenuation Range: 0-11(dB) or 0-31(dB) or 0-51(dB)
● Power rating: 2W or 5W　● Impedance: 50Ω　● Operating temperature: -40℃ ~ +85℃
Model
Attenuation Range
(dB)
Power
(W)
Step Value
(dB)
Attenuation Accuracy
（dB）

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA tupe
WxHxL
(mm)
DC ~ 2.7GHz
DC ~ 1GHz
1 ~ 2GHz
2 ~ 2.7GHz
DC ~ 2GHz
2 ~ 2.7GHz
0 ~ 11
2
1
+1.5
1.10
1.10
1.35
0.5
1.0
41*35.15*42.5
0 ~ 11
5
1
+2.0
1.10
1.10
1.2
0.5
1.0
41*35.15*42.5
VAB3101S2* NEW
0 ~ 31
2
1
-0.5~+0.8
1.10
1.15
1.20
0.5
0.65
34.8*34.35*53
VAB3101S5* NEW
0 ~ 31
5
1
-0.5~+1.0
1.10
1.10
1.15
0.3
0.65
34.8*34.35*53
VAB5101S2* NEW
0 ~ 51
2
1
-0.65~+1
1.15
1.2
1.25
0.55
0.85
49.4*34.35*52
VAB5101S5* NEW
0 ~ 51
5
1
-0.65~+1.2
1.10
1.10
1.15
0.55
0.85
49.4*34.35*52
Note: for more information about part dimensions, please download datasheets from the t accordingly.     
Outline Dimensions (unit:mm & inch)
VAB1101S
VAB3101S
VAB5101S
                                     
                                     

N Type Series
(back connectors)
Step Type Spec.   
● Frequency range: DC to 2.7GHz　● Attenuation Range: 0-11(dB) or 0-31(dB) 　
● Power rating: 2W or 5W　● Impedance: 50Ω,75Ω　● Operating temperature: -40℃ ~ +85℃
Model
Attenuation Range
(dB)
Power
(W)
Step Value
(dB)
Attenuation Accuracy
（dB）

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA tupe
WxHxL
(mm)
DC ~ 2.7GHz
DC ~ 1GHz
1 ~ 2GHz
2 ~ 2.7GHz
DC ~ 2GHz
2 ~ 2.7GHz
0 ~ 11
2
1
+1.5
1.10
1.10
1.35
0.5
1.0
44*34.5*48.5
0 ~ 11
5
1
+2.0
1.10
1.10
1.2
0.5
1.0
44*34.5*48.5
0 ~ 31
2
1
+1.5
1.10
1.15
1.45
0.7
1.2
48*34.1*64
0 ~ 31
5
1
+2.0
1.10
1.15
1.2
0.6
1.0
48*34.1*64
Note: for more information about part dimensions, please download datasheets from the t accordingly.
Outline Dimensions (unit:mm & inch)
VAB1101NA
VAB3101NA
 

N Type Series
(left and right connectors)
Step Type Spec.   
● Frequency range: DC to 2.7GHz　● Attenuation Range: 0-11(dB) or 0-31(dB) or 0-51(dB)　
● Power rating: 2W or 5W　● Impedance: 50Ω,75Ω　● Operating temperature: -40℃ ~ +85℃
Model
Attenuation Range
(dB)
Power
(W)
Step Value
(dB)
Attenuation Accuracy
（dB）

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA tupe
WxHxL
(mm)
DC ~ 2.7GHz
DC ~ 1GHz
1 ~ 2GHz
2 ~ 2.7GHz
DC ~ 2GHz
2 ~ 2.7GHz
0 ~ 11
2
1
+1.5
1.10
1.10
1.35
0.5
1.0
44*39.2*48.5
0 ~ 11
5
1
+2.0
1.10
1.10
1.2
0.5
1.0
44*39.2*48.5
0 ~ 31
2
1
-0.5~+1.0
1.10
1.10
1.15
0.3
0.65
38.2*39*54
0 ~ 31
5
1
-0.5~+1.0
1.10
1.10
1.15
0.3
0.65
38.2*39*54
VAB5101N2* NEW
0 ~ 51
2
1
-0.65~+1.5
1.15
1.20
1.25
0.85
1.4
51.8*39*53
VAB5101N5* NEW
0 ~ 51
5
1
-0.65~+1.5
1.15
1.20
1.25
0.85
1.4
51.8*39*53
Note: for more information about part dimensions, please download datasheets from the t accordingly.
Outline Dimensions (unit:mm & inch)
VAB1101N
VAB3101N
VAB5101N

Part No. Description
VAE
 ## 
 * 
Connector Type

e.g.:VAE15S

Connector Type:S--SMA,N--N tgpe or B--BNC etc


Continuous Type Spec.
● Frequency range: DC ~ 3GHz　● Power rating: 2W　● Impedance: 50Ω,75Ω　● Operating temperature: -40℃ ~ +85℃
Model
Attenuation
Range
(dB)
Impedance
（Ω）

Typ. VSWR:1
0dB
Insertion Loss
Dimensions
SMA type
DC ~ 2GHz
2 ~ 3GHz
DC ~ 3GHz
VAE15*
0 ~ 15
50
1.35
1.50
0.6
45*23*28
VAE15B*
0 ~ 15
75
1.35
1.50
0.7
45*23*28

                                      VAE                                                            
        

 

 

Return to Switch/Rotary Variable Attenuator

Applications

Rotary Variable Attenuator(VAB&VAE Series) is widely used in RF communication links, radar sub-systems, GNSS modules, and industrial wireless control equipment.

Selection Guide

When selecting Rotary Variable Attenuator(VAB&VAE Series), verify frequency band, insertion loss, isolation or attenuation target, package type, and power handling against your design requirements.

FAQ

What is the typical use of Rotary Variable Attenuator(VAB&VAE Series)?

It is used to control, split, combine, or sample RF signals in communication and microwave circuits.

How do I choose the right model?

Start from your operating frequency and electrical target, then confirm footprint and environmental conditions.

Who is the supplier and what is the brand?

Supplier: Baiao Technology | Brand: Yantel