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250701B

更新时间：2025-07-09 07:43:02

品牌：ITF

描述：SAW Bandpass Filter

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250701B 概述

SAW Bandpass Filter SAW带通滤波器

250701B 数据手册

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SAW Bandpass Filter 250701B - Preliminary

1. Features

IF bandpass filter

High attenuation

Single-ended operation

DIP Package

Maximum Storage Temperature Range : -40℃ ~ 85℃

Electrostatics Sensitive Device (ESD)

2. Package Dimension

12.7±0.5

5.5max 6.0max

7.6±0.2

Package : D2012

Pin Configuration

Input

Output

Dimensions shown are nominal in millimeters

Base : Fe(SPCC), Au plating over Ni plated

Cap : Cu & Cr Alloy, Ni Plated

Termination : Kovar, Au Plated

2, 4

3, 6

Ground

Case ground

I T F Co., Ltd.

102-901, Bucheon Technopark 364,

Samjeong-Dong, Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

Part No.

250701B

Rev. Date

2004-03-10

1/5

Rev.

DS4023-CS01

SAW Bandpass Filter 250701B - Preliminary

3. Specifications

Fo = 140.0 MHz

Terminating source impedance : 50Ω and matching network

Terminating load impedance

: 50Ω and matching network

Minimum

Typical

140.0

22.0

6.98

7.3

Maximum

Center Frequency

MHz

139.75

140.25

Insertion Loss

25.0

1dB Bandwidth

MHz

3dB Bandwidth

7.0

40dB Bandwidth

8.7

9.0

1.0

200

Amplitude Ripple (Fo +/- 3.0 MHz)

0.5

Group Delay Variation (Fo +/- 3.0 MHz)

Absolute Delay

nsec

usec

100

2.93

Ultimate Rejection

Temperature Coefficient of Frequency

ppm/°C

-23

Notes :

1) All specifications are based on the matching schematic shown below

2) All specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature

3) All attenuation measurements are measured relative to insertion loss

I T F Co., Ltd.

Part No.

Rev. Date

Rev.

250701B

102-901, Bucheon Technopark 364,

Samjeong-Dong, Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

2004-03-10

2/5

DS4023-CS01

SAW Bandpass Filter 250701B - Preliminary

4. Matching Schematic

( Actual matching values may vary due to PCB layout and parasitics )

Input

50Ω

Output

50Ω

L1 = 27 nH,

L2 = 33 nH

5. Marking Configuration

ITF¹⁾04A001²⁾

250701B³⁾

1) Manufacturer name

2) Lot Number

3) Part Number

I T F Co., Ltd.

Part No.

250701B

102-901, Bucheon Technopark 364,

Samjeong-Dong, Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

Rev. Date

Rev.

2004-03-10

3/5

DS4023-CS01

SAW Bandpass Filter 250701B - Preliminary

6. Typical Performance ( at +25℃ )

CH1

log MAG

10 dB/

REF -21.13 dB

1_: 0

0.000 000 MHz

REF=1

PRm

Cor

BW: 8.697 964 MHz

cent: 139.976825 MHz

Q: 16.093

1_ loss: -21.106 dB

CH1 CENTER 140.000 000 MHz

SPAN 22.000 000 MHz

CH1

CH2

log MAG

delay

1 dB/

200 ns/

REF -20.87 dB

REF 2.908 us

3_:-28.896 ns

0.000 000 MHz

PRm

Cor

REF=1

BW: 7.327 827 MHz

cent: 140.003487 MHz

Q: 19.106

1_ loss: -21.101 dB

6.000 000 MHz

REF=2

mean: 2.930 9 us

s.dev: 15.575 ns

PRm

Cor

p-p: 73.338 ns

Smo

CENTER 140.000 000 MHz

SPAN 8.000 000 MHz

I T F Co., Ltd.

Part No.

Rev. Date

Rev.

250701B

102-901, Bucheon Technopark 364,

Samjeong-Dong, Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

2004-03-10

4/5

DS4023-CS01

SAW Bandpass Filter 250701B - Preliminary

CH1

log MAG

10 dB/

REF -21.7 dB

1_: 0

CH1

CH2

log MAG

1 dB/

REF -20.87 dB

REF -21.29 dB

1_: 0

3_ -.0467 dB

0.000 000 MHz

REF=1

PRm

0.000 000 MHz

2_:-78.299 dB

140 MHz

PRm

Cor

REF=1

3_:-45.179 dB

280 MHz

BW: 6.998 182 MHz

cent: 140.004000 MHz

Q: 20.006

1_ loss: -21.107 dB

6.000 000 MHz

REF=2

mean:-21.141 dB

s.dev: .0875 dB

p-p: .3852 dB

PRm

Cor

START .010 000 MHz

STOP 500.000 000 MHz

CENTER 140.000 000 MHz

SPAN 8.000 000 MHz

CH1

CH2

SWR

500 m /

REF 1.609

REF 1.849

1_ 1.6083

2_: 1.8498

CH1

CH2

1 U FS

1_: 78.23

2_ 62.906

-10.254

-32.564

110.87 pF

34.91 pF

140.000 000 MHz

PRm

Cor

PRm

Cor

140.000 000 MHz

PRm

Cor

PRm

Cor

CENTER 140.000 000 MHz

SPAN 22.000 000 MHz

CENTER 140.000 000 MHz

SPAN 22.000 000 MHz

I T F Co., Ltd.

102-901, Bucheon Technopark 364,

Samjeong-Dong, Ojeong-Gu, Bucheon-City,

Gyounggi-Do, Korea 421-809

Part No.

250701B

Rev. Date

Rev.

2004-03-10

5/5

DS4023-CS01

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