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915MHz SAW Resonator

915MHz SAW Resonator

915MHz SAW Resonator
HDR915M-S6


Scope
This specification covers the characteristics of1-port SAW resonator with 915MHz centre frequency used for remote-controlsecurity.


Electrical Specification of 915MHz SAW Resonator


DC Voltage VDC

10V

AC Voltage Vpp

10V50Hz/60Hz

Operation Temperature

-20 ℃ to 85℃

Storage Temperature

-45 ℃ to 85℃

RF Power Dissipation

0dBm



Table1
Electronic Characteristics of915MHz SAW Resonator
 


Item

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

914.750

915.000

915.250

Insertion Loss (in 50ohm system)

dB

 

1.5

3.5

Quality Factor

Unload Q

 

12, 800

 

50 Ω Loaded Q

 

2,000

 

Temperature

Stability

Turnover Temperature

 

39

 

Turnover Frequency

KHz

 

fo 2.7

 

Frequency Temperature Coefficient

ppm / ℃ 2

 

0.037

 

Frequency Aging

ppm /yr

 

≤ ± 10

 

DC. Insulation Resistance

M Ω

1.0

 

 

RF Equivalent

RLC Model

Motional Resistance R1

Ω

 

18

26

Motional Inductance L1

µ H

 

86

 

Motional Capacitance C1

pF

 

1.5

 

Pin 1 to Pin 2 Static Capacitance

pF

1.7

2..0

2.3

Transducer Static Capacitance

pF

 

1.9

 



 


B# , E#

Input/Output

A# ,C#,F #,D#

Ground



EnvironmentalCharacteristics of 915MHz SAW Resonator 
1. High temperature exposure
Placing the 915MHz SAW resonator at 85 ℃ for sixteen hoursand then releasing the filter into a room with normal temperatureconditions for twenty-four hours prior to the measurement, it shall fulfil thespecifications in table 1
2. Low temperature exposure
Placing the 915MHz SAW resonator at -20 ℃ for sixteen hoursand then releasing the device into a room with normal temperatureconditions for twenty-four hours prior to the measurement, it shall fulfil thespecifications in table 1
3. Temperature cycling
The 915MHz SAW resonator must be in a place with lowtemperature, -40 ℃ for thirty minutes, following by a high temperature of 25℃ for fiveminutes and then a higher temperature of 85℃ for thirty minutes. When the deviceis released into a room with normal temperature conditions for one or twohours prior to the measurement, it shall meet the specificationsin table 1.
4. Resistance tosolder heat
If the 915MHz SAW resonator terminals are immerse nocloser than 1.5 mm intothe solder bath at 260℃ ±10℃ for10±one second and then release the device into a room withnormal temperature conditions for four hours, it shall meet the specifications in table 1.
5. Solderability
Submerge the device terminals into the solder bath at 245℃ ±5℃ for five seconds. More than 95% areaof the soldering pad must be covered with new solder; the 915MHz SAW resonator shall meet the specifications in table 1.
6. Mechanicalshock
Drop the 915MHz SAW resonator randomly onto the concrete floor from a height of 1 m three times. The filter shall fulfil the specifications intable 1.
7. Vibration
Subject the device to vibration for two hours each in x, y and z axeswith amplitude of 1.5 mm at 10 to 55 Hz. The filtershall fulfil the specifications in table 1.
8. Lead fatigue
(1) Pulling test
If a vertical weight (1Kg) is applied to the 915MHz SAW resonator along with the direction of lead without any shock for fiveor ten seconds, the device shall satisfy all the initial characteristics.
(2) Bending test
The 915MHz SAW resonator shall be subjectto withstand against 90º bending with 450g weight in the direction of thickness.This operation shall be done toward both directions; the deviceshows no evidence of damage and shall satisfy all the initialelectrical characteristics.

Remarks for 915MHz SAW Resonator usage
1. Static voltage
Please avoid static voltagebetween signal load and ground, it may cause deteriorationor destruction of the SAW resonator components.
2. Ultrasonic cleaning
Please avoid ultrasonic cleaning, it may cause deterioration ordestruction of the SAW resonator components.
3. Soldering
Please avoid soldering different parts of the SAWresonator components, just leads may be soldered. 

Packing of 915MHzSAW Resonator
1. Dimensions
(1) Carrier Tape: Figure 1
(2) Reel: Figure 2
(3) The 915MHz SAW resonatorshall be packed properly to avoid damage during transportation or storage.
2. Reeling Quantity
1000 pieces/reel 7’’
3000 pieces/reel 13’’
3. Taping Structure
(1) The tape shall be wrappedaround the reel in the direction shown below. 

915MHz SAW Resonator

 
(2) Label


Device Name

 

User Product Name

 

Quantity

 

Lot No.

 



(3) Leader part andvacantposition specifications.


 


Tape Specifications of 915MHz SAWResonator
1. Tensile Strength of Carrier Tape:4.4N/mm width
2. Top Cover Tape Adhesion(See the below figure)
(1) Pull off angle: 0~15º
(2) Speed: 300mm/min.
(3) Force: 20~70g 


 


Carrier Tape Dimensions
[Unit: mm]



W

F

E

P0

P1

P2

D0

D1

t1

t2

A

B

12.0

±0.3

5.5

±0.05

1.75

±0.1

4.0

±0.1

4.0

±0.1

2.0

±0.05

Ø1.5

±0.1

Ø 1.0

±0.25

0.3

±0.05

1. 25

±0.1

3.3 ±0.1

3.3 ±0.1



As an experienced 915MHz SAW resonator manufacturer in China, we notonly provide SAW resonator but also offer RF module, SAW filter, crystalresonator and TCXO among others.


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