902MHz Base Station SAW Filter

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902MHz Base Station SAW Filter

HDF902E S-6

Scope
This specification covers the characteristics of 902MHz base station SAW filter with 902MHz centre frequency used for remote-control security.

Electrical Specification of 902MHz Base Station SAW Filter
DC Voltage VDC 10V
AC Voltage Vpp 10V50Hz/60Hz
Operation Temperature -40℃ to +85℃
Storage Temperature -45 ℃ to +85℃
RF Power Dissipation 0dBm

Frequency Characteristics

Table 1
Electrical Characteristics of 902MHz Base Station SAW Filter


Unit Minimum Typical Maximum
Centre Frequency MHz - 902.5 -
Insertion Loss (In Fc +/- 12.5 MHz) dB
2.5 3.0
Amplitude Ripple (In Fc +/- 12.5 MHz) dB
1.0 1.5
Relative Attenuation 650 MHz ~ 845 MHz 845 MHz ~ 880 MHz 945 MHz ~ 1150 MHz dB 40 15 40 45 25 45 -
Input/Output Impedance Ohms
50
Dimension of 902MHz Base Station SAW Filter    Test Circuit of 902MHz Base Station SAW Filter

Marking of 902MHz Base Station SAW Filter
HD: Brand
F: Filter
6: SMD-6
938: No.

Environmental Characteristics of 902MHz Base Station SAW Filter
1. High temperature exposure
Placing the 902MHz base station 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 specifications in table 1
2. Low temperature exposure
Placing the 902MHz base station SAW filter at -40 ℃ for sixteen hours and then releasing the device into a room with normal temperature conditions for twenty-four hours prior to the measurement, it shall fulfil the specifications in table 1
3. Temperature cycling
The 902MHz base station SAW filter must be in a place with low temperature, -40 ℃ for 30 minutes, following by a higher temperature of 85℃ for 30 minutes. When the device is released into a room with normal temperature conditions for 24 hours prior to the measurement, it shall meet the specifications in table 1.
4. Resistance to solder heat
If the SAW filter terminals are immerse no closer than 1.5 mm into the solder bath at 260℃ ±10℃ for 10±one second an then release it into a room with normal 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% area of the soldering pad must be covered with new solder; the 902MHz base station SAW filter shall meet the specifications in table 1.
6. Mechanical shock
Drop the 902MHz base station SAW filter randomly onto the concrete floor from a height of 1 m three times. The filter shall fulfil the specifications in table 1.
7. Vibration
Subject the device to vibration for 2 hour 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.

Remarks for 902MHz Base Station SAW Filter Usage
1. Static voltage
Please avoid static voltage between signal load and ground, it may cause deterioration or destruction of the base station SAW filter components.
2. Ultrasonic cleaning
Please avoid ultrasonic cleaning, it may cause deterioration or destruction of the base station SAW filter components.
3. Soldering
Please avoid soldering different parts of the base station SAW filter components, just leads may be soldered.

Packing of 902MHz Base Station SAW Filter
1. Dimensions
(1) Carrier Tape: Figure 1
(2) Reel: Figure 2
(3) The 902MHz base station 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 902MHz Base Station 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
12.00±0.30 5.50±0.10 1.75±0.10 4.00±0.10 4.00±0.10 2.00±0.10 Ø1.50 Ø1.5±0.25 0.31±0.05 1.30±0.10 3.4MAX. 3.4MAX

[Figure 2]
[Unit: mm]

A B C D E W t r
Ø 330 ±1.0 Ø 100 ±0.5 Ø 13 ±0.5 Ø 21 ±0.8 2 ±0.5 13 ±0.3 3 max. 1.0 max.

Shoulder is an experienced 902MHz base station SAW filter manufacturer based in China. We offer a wide range of products, including TCXO, SAW resonator, RF module, and crystal resonator among others.

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