915MHz SAW Filter

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915MHz SAW Filter

HDF915ASMD-4

Scope
This specification covers the characteristics of SAW filter with 915MHz centre frequency.

Table 1
Electronic Characteristics of 915MHz SAW Filter

Item Specification
Center Frequency (fo ) 916 MHz
Insertion Loss(dB) 1) 915-917 MHz 2) 871-875 MHz 3) 893-896 MHz 4) 9 36-939 MHz 5) 957-962 MHz 4.5max 40 min 30 min 20 min 40 min
Ripple Deviation (915-917MHz) (dB) 1.5max
Input/Output Impedance (Nominal) 50 Ω
Frequency Characteristics Dimension of 915MHz SAW Filter

Marking of 915MHz SAW Filter
HD F916A
Color-Black or Blue
916-Center Frequency (MHz)
Performance-Application Low-Loss SAW filter of cordless system, Center frequency 916 MHz

Maximum Rating of 915MHz SAW Filter
Operation Temperature Range -10 ℃ to +50℃
Storage Temperature Range -40 ℃ to +85℃
DC. Permissive Voltage 0 V DC. max .
Maximum Input Power 5dBm

Test Circuit of 915MHz SAW Filter

Environmental Characteristics of 915MHz SAW Filter
1. High temperature exposure
Placing 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 specifications in table 1
2. Low temperature exposure
Placing the 915MHz SAW filter at -20 ℃ 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 915MHz SAW filter must be in a place with low temperature, -40 ℃ for 30 minutes, following by a high temperature of 25℃ for five minutes and then a higher temperature of 85℃ for 30 minutes. When the device is released into a room with normal temperature conditions for 1 to 2 hours prior to the measurement, it shall meet the specifications in table 1.
4. Resistance to solder heat
If the 915MHz 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 915MHz SAW filter shall meet the specifications in table 1.
6. Mechanical shock
Drop the 915MHz 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 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.
8. Lead fatigue
(1) Pulling test
If a vertical weight (1Kg) is applied to the 915MHz SAW filter along with the direction of lead without any shock for five or ten seconds, the device shall satisfy all the initial characteristics.
(2) Bending test
The 915MHz SAW filter shall be subject to withstand against 90º bending with 450g weight in the direction of thickness. This operation shall be done toward both directions; the device shows no evidence of damage and shall satisfy all the initial electrical characteristics.

Remarks for 915MHz 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 915MHz SAW Filter
1. Dimensions
(1) Carrier Tape: Figure 1
(2) Reel: Figure 2
(3) The 915MHz 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 915MHz SAW Filter
1. Tensile Strength of Carrier Tape: 4.4N/mm width
2. Top Cover Tape Adhesion(See the belowfigure)
(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 8.00±0.10 2.00±0.10 Ø1.50 Ø1.0±0.25 0.25±0.05 1.65±0.10 4.04
±0.10
4.10
±0.10

[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 a specialized 915MHz SAW filter manufacturer in China. Our company provides a wide range of products, including SAW resonator, crystal resonator, Pico repeater, WiFi module, and others.

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