MachineU > China Products > Home Appliance > Home Appliance Parts > Kitchen Appliance Parts > Microwave Oven Parts
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Specifications
Brand Name :
HM
Model Number :
KHZ
Certification :
Rohs
Place of Origin :
wuxi
MOQ :
1000
Price :
$0.3
Payment Terms :
T/T, Western Union, MoneyGram
Supply Ability :
1000000
Delivery Time :
35 day
Packaging Details :
REEL
Withstanding Voltage (Between each Terminals) :
D.C. 50V，1 minute max.
Insulation Resistance (Between each Terminals) :
100Mmin. (D.C.10V)
Input Signal Level :
+5dBm (50Termination)
Operating Temperature Range :
-20 to +80C
Storage Temperature Range :
-40 to +85C
Nominal Center Frequency (fn) :
455kHz
Recovered Audio 3dB Bandwidth (from 455kHz) :
4.2kHz min.
Recovered Audio Output Voltage (at 455kHz) :
4010mV
Distortion (at 455kHz) :
4.0% max.
IC :
NJM2590
Description

１． Scope

The specification applies to the discriminator for IF demodulation used in communications equipment .

２．Spec No.:HM-180.136b

３．Part No.:CDBC455C66

4． Input signal condition

NO. Item Specification
4 – 1 Input level -27.0dBm
4 – 2 Deviation ±1.5KHz
4 – 3 Frequency Modulation 1.0 khz

5．Electrical Characteristics

NO. Item Specification
5 – 1 Modulation Frequency 455±1.0KHz
5 – 2 Demodulated Bandwidth(3dB) ±4.2KHz min (from 455 kHz)
5– 3 Demodulated Output4 0±10mV. (at 455 kHz)
5 – 4 Demodulated Distortion Factor 4.0%Max.
5 – 5 Withstand Voltage D.C. 50V for 1 minute

6. :Measurement

6－１． Measurement Condition

Unless otherwise sepecified ,the shandard range of atmospheric conditions for measurements and tests are as follows:

Ambient temperature:5℃ to 35 ℃ Relative humidity :45% to 85%

Air pressure :86Kpa to 106 Kpa

If there is doubt about the results, measurement shall be made within the following limits:

Ambient temperature:18℃ to 22 ℃ Relative humidity :60% to 70%

Air pressure :86Kpa to 106 Kpa

6－２． Measuring Circuit

6－3． Test Method

Input signal condition

 Input level 80dBμ
Frequency Deviation ±4.0 kHz
Modulation Frequency 1.0 kHz

Demodulated 3dB Bandwidth

Input the above signal and sweep the carrier around 455 kHz, and find

Out the maximum audio output frequency. Then sweep the carrier frequency again and find two frequencies, which are observed

–3dB attenuation points from the maximum point.

Higher frequency point is called (f1) and lower called (f2). (F1-455KHz) is defined as upper 3dB bandwidth and (455KHz-f2) defined as lower

3dB bandwidth.

Demodulate Output

 Demodulated output shall be measured when carrier frequency is adjusted to 455KHz.

Demodulated

Distortion Factor

Carrier frequency is adjusted to

455KHz.And distortion shall be measured with 1 kHz modulation frequency.

7．/outline

7-1．

Appearance:Mark shall be clear,appearance shall be smooth and no damage.

7-2．

Material List

NO. Item Specification
1 Case Polybutenetelephthalate (mixture of glass fiber)
2 Terminal Phosphor bronze Ag Clad
3 Base Sealing Epoxy resin

7-3.

Dimensions:(mm)

(1)(2) Input/Output

(3)Dummy

8．Physical Characteristics

NO.

Item

Measurement condition

Requirement

8－１

Random Drop

Filter shall be measured after 3 times random

No visible damage and it

drops from the height of 30cm on concrete

floor

 meet Table 1

8－２

Vibration

Filter shall be measured after being applied vibration of amplitude of 1.5mm with 10-55Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours

No damage and it meet

Table 1.

8－3

Solderability

Lead terminals are immersed in aide solder for

5 sec and then immersed in soldering bath of

230±5℃, for 3±0.5 sec.

At least 95% lead terminals shall be covered with solder.

8－4

(１)

Terminal strength Pulling

After force of 1kg for 10 seconds is applied to each terminal in axial direction, Filter shall be measured.

No damage, no cut-off and it meet Table 1.

(２)

Bending

After lead terminals shall be fixed at 2mm from filter’s body, they shall be folded up to

90°from their axial directions and folded

back to –90°.Then folded back to their axial direction, the speed of folding be each 3 seconds.

No damage, no cut-off and it meet Table 1.

9．Environmental Characteristics

NO.

Item

Measurement condition

Requirement

9 – 1

Humidity

After being placed in a chamber with 90-95% R.H. at 40±2℃ for 100 hours and then being placed in room temperature for 1 hour, filter shall be measured.

It shall meet Table 1.

9 – 2

Resistance to

Solder Heat

It shall meet Table 1.

Lead terminals are immersed up to 1.5mm from filter’s body in soldering bath of 350±

10℃, for 3±0.5 sec. And then filter shall be measured after being placed in room temperature for 1 hour.

9 – 3

High Temperature

After being placed in a chamber with 80±2

℃,for 100 hours and then being placed in room temperature for 1 hour , filter shall be measured.

It shall meet Table1

9 – 4

Low Temperature

After being placed in a chamber with -20±2

℃,for 100 hours and then being placed in room temperature for 1 hour, filter shall be measured.

It shall meet Table 1

9 – 5

Heat Shock

After being kept at room temperature, filter shall be placed at temperature of –55 ℃ , for

30 minutes, then be placed at temperature. 85

℃, for 30 minutes. After that returned to –55

℃ again. Repeated above cycle for 5 times. After being kept in room temp. for 1 hour, filter shall be measured

It shall meet Table 1

10. Reflow conditions

Piezoelectric Smd Components

Table 1

Item

Specification
Modulation Frequency 455±1.0KHz

Demodulated

Bandwidth(3dB)

 ±4.0KHz min (from 455 kHz)
Demodulated Output 100±40mV. (at 455 kHz)

Demodulated Distortion

Factor

 2.0%Max.

Piezoelectric Smd Components

Product tags

piezoelectric wafer

,

piezoelectric element

,

pzt piezoelectric
Send your message to this supplier
Send Now

Piezoelectric Smd Components

Ask Latest Price
Product Detail
Brand Name :
HM
Model Number :
KHZ
Certification :
Rohs
Place of Origin :
wuxi
MOQ :
1000
Price :
$0.3
Contact Supplier
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components
Piezoelectric Smd Components

hanse-john electronic Co.,Ltd.

Active Member
5 Years
jiangsu, wuxi
Since 2008
Business Type :
Manufacturer, Trading Company
Main Products :
SMD Filter, Ceramic Bandpass Filter, Ceramic Low Pass Filter
Total Annual :
400000-1000000
Employee Number :
100~200
Certification Level :
Active Member
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Ceramic Discriminator
MachineU China Products Home Appliance Home Appliance Parts Kitchen Appliance Parts Microwave Oven Parts
Contact Supplier
Submit Requirement