868MHz SAW Filter

Home » Products » SAW Filter » 868MHz SAW Filter
868MHz SAW Filter

HDF868.35AS3

Scope
This specification covers the characteristics of SAW filter with 868MHz centre frequency.

Table 1
Electronic Characteristics of 868MHz SAW Filter
Item Frequency Specification
Center Frequency (fo) 868.35MHz
Pass Band Width Fo ± 2.0MHz
Insertion Loss Passband 4.5dB max.
Stop Band Rejection Fo-400~-40.8MHz Fo+50~+400MHz 47dB min. 40dB min.
Terminating Impedance
50 Ω //<10nH
Operating Temperature Range
-10 ℃ To +70℃
Frequency Characteristics Dimension of 868MHz SAW Filter
1. Ground
2. Input/output
3. Ground
4. Ground
5. Ground
6. Input/output
7. Ground
8. Ground

Marking of 868MHz SAW Filter
HD F823
Color-Black or Blue
868.35-Center Frequency (MHz)
Performance-Application Low-Loss SAW Filter of cordless system, Center Frequency 868 MHz

Maximum Rating of 868MHz SAW Filter
Operation Temperature Range -20 ℃ to +50℃
Storage Temperature Range -40 ℃ to +85℃
DC. Permissive Voltage 0 V DC. max.
Maximum Input Power 11dBm

Test Circuit of 868MHz SAW Filter

Environmental Characteristics of 868MHz SAW Filter
1. Temperature cycling
The 868MHz SAW filter must be in a place with low temperature, -40 ℃ for thirty minutes, following by a high temperature of 25℃ for five minutes and then a higher temperature of 85℃ for thirty minutes. When the device is released into a room with normal temperature conditions for one or two hours prior to the measurement, it shall meet the specifications in table 1.
2. Resistance to solder heat
If the device terminals are immerse no closer than 1.5 mm into the solder bath at 260℃ ±10℃ for 10±one second and then release the device into a room with normal temperature conditions for four hours, it shall meet the specifications in table 1.
3. Solderability
Submerge the device terminals into the solder bath at 245℃ ±5℃ for five seconds. More than 95% area of the soldering pad must be covered with new solder; the 868MHz SAW filter shall meet the specifications in table 1.
4. Mechanical shock
Drop the 868MHz SAW filter randomly onto the concrete floor from a height of 1 m three times. The filter shall fulfil the specifications in table 1.
5. Vibration
Subject the device to vibration for two hours each in x, y and z axes with amplitude of 1.5 mm at 10 to 55 Hz. The filter shall fulfil the specifications in table 1.
6. Gross Leak Test
Submerging the SAW filter to absolute alcohol for at least one minute at 70℃ to 75℃, no bubbles should be seen. Measuring the leak rate, failure is defined if the leak rate exceeds 1X10-5 atm cc/sec Helium. Refer to MIL – STD - 202F, method 112 for test details.
7. Fine Leak Test
Failure is defined if the leak rate of the SAW filter exceeds 1X10-5 atm cc/sec Helium. Refer to MIL – STD - 202F, method 112 for test details.

Remarks for 868MHz SAW Filter usage
1. Static voltage
Please avoid static voltage between signal load and ground, it may cause deterioration or destruction of the SAW filter components.
2. Ultrasonic cleaning
Please avoid ultrasonic cleaning, it may cause deterioration or destruction of the SAW filter components.
3. Soldering
Please avoid soldering different parts of the SAW filter components, just leads may be soldered.

Packing of 868MHz SAW Filter
1. Dimensions
(1) Carrier Tape: Figure 1
(2) Reel: Figure 2
(3) The 868MHz SAW filter shall 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 wrapped around the reel in the direction shown below.

(2) Label
Device Name
User Product Name
Quantity
Lot No.

(3) Leader part and vacant position specifications.

Tape Specifications of 868MHz SAW Filter
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

[Figure 1] 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 8.0 ±0.1 2.0 ±0.05 Ø1.5 ±0.1 Ø1.0 ±0.25 0.3 ±0.05 2.10 ±0.1 6.40 ±0.1 5.20 ±0.1

[Figure 2]
[Unit: mm]

A B C D E W t r
Ø330 ± 1.0 Ø100 ± 0.5 Ø13 ± 0.5 Ø21 ± 0.8 2 ± 0.5 13 ± 0.3 3 max. 1.0 max.

Shoulder is a specialized 868MHz SAW filter manufacturer in China. We provide a comprehensive range of products, including SAW resonator, Pico repeater, crystal resonator, RF module and more.

Inquiry Form
Other products
  • 915MHz SAW FilterPlacing the 915MHz SAW filter at 85 ℃ for sixteen hours and then releasing the filter into a room with normal temperature conditions for twenty-four hours prior to the measurement, it shall fulfil the ...
  • 1575MHz SAW FilterThe 1575MHz SAW filter is for GPS applications with a usable bandwidth of 2 MHz. It has no impedance matching require for operation at 50Ω. It has a single-ended operation. ...