3A412

更新时间： 2024-02-25 11:54:27

品牌	Logo	应用领域
安伦 - ANAREN		变压器射频变压器
页数	文件大小	规格书
2页	319K
描述
Balun Transformers 50 to 12.5 Balanced

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技术参数
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3A412 技术参数

生命周期：	Active	Reach Compliance Code：	compliant
ECCN代码：	5A991.G	HTS代码：	8517.70.00.00
风险等级：	5.05	Is Samacsys：	N
最大截止频率：	1000 MHz	最小截止频率：	800 MHz
高度：	1.91 mm	插入损耗：	0.48 dB
长度：	25.4 mm	安装特点：	SURFACE MOUNT
最高工作温度：	85 °C	最低工作温度：	-55 °C
包装方法：	TAPE & REEL	物理尺寸：	L25.4XB19.05XH1.91 (mm)
表面贴装：	YES	变压器类型：	RF TRANSFORMER
宽度：	19.05 mm	Base Number Matches：	1

3A412 数据手册

Model 3A412

Rev. B

Balun Transformers

50Ω to 12.5Ω Balanced

Description

The 3A412 is a low profile balanced to unbalanced transformer designed for push-

pull amplifiers in an easy to use surface mount package for AMPS and GSM.

These compact Xinger surface mount baluns are ideal for high volume

manufacturing and are more reliable and repeatable than traditional baluns. The

3A412 has an unbalanced port impedance of 50Ω and balanced port impedances

of 12.5Ω to ground with a 25Ω balance between outputs. This eases the matching

of the push-pull amplifier’s power transistors, which have low impedance levels.

The output ports have equal amplitude (-3dB) with 180 degree phase differential.

The Xinger

 balun is a result of years of research and development culminating

with a solution so unique, a patent is pending on the design approach. The 3A412

is available on tape and reel for pick and place high volume manufacturing.

ELECTRICAL SPECIFICATIONS***

Unbalanced

Port

Balanced

Port

Features:

Return

Loss

Insertion

Loss

Frequency

• 800 – 1000 MHz

Impedance

Ohms

Impedance*

Ohms

• 180° Transformer

• 50 Ohm to 2 x 12.5+j Ohm

• Low Insertion Loss

• High Power

MHz

dB min

dB max

0.48

800-1000

869-894

925-960

12.5+j

0.35

• Even Order Suppression

• Input to Output DC Isolation

• Surface Mountable

• Tape & Reel

0.40

Amplitude

Balance

Phase

Balance

Power

Handling

Operating

Temp.

ΘJC

• Convenient Package

dB max

0.40

Degrees max

180± 5.0

Watts

250

ºC / Watt

3.8

ºC

-55 to +85

0.40

3.8

0.40

250

3.8

-55 to +85

***Specification based on performance of unit properly installed on microstrip printed circuit

boards with 50 Ω nominal impedance. Specifications subject to change without notice.

**Insertion Loss excludes reflected power. * 12.5Ω reference to ground

Outline Drawing

Top View (Near-side)

Side View

Bottom View (Far-side)

±.008

±0.20

.075

[1.91

±.004

±0.10

.400

[10.16

]

±.004

±0.10

.060

Pin 3

[1.52

]

±.010

1.000

±.008

±0.20

.070

[1.78

]

±0.25

[25.40

]

Pin 2

GND

Pin 3

Pin 2

±.008

±0.20

.050

[1.27

±.004

.030

TYP

]

±0.10

[0.76

±.010

±0.25

.750

[19.05

]

±.004

.030

±.008

±0.20

.050

[1.27

±0.10

[0.76

]

±.008

±0.20

.358

[9.09

]

Pin 1

Denotes

GND

Pin 1

Array Number

±.004

±0.10

.115

[2.92

]

Dimensions are in Inches [Millimeters]

3A412 Rev A Mechanical Outli

USA/Canada:

Toll Free:

Europe:

(315) 432-8909

(800) 544-2414

+44 2392-232392

Available on Tape

and Reel For Pick and

Place Manufacturing.

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