Walsin Technology Corporation
Page 1 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
RFBPF Series 3225(1210)
MULTILAYER CERAMIC BAND PASS FILTER
2.4 GHz ISM Band Working Frequency
P/N: RFBPF3225150A3T
Customer :
Approval No :
Issue Date :
Customer Approval :
WALSIN Technology Corp.
Authorised By :
Walsin Technology Corporation
Page 2 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
FEATURES
1. Multilayer LTCC ( Low Temperature Cofired Ceramics ) Technology
2. Reflow solderable
3. Miniatured Size 3.2 x 2.5 x 1.5 mm3
4. Low Insertion Loss
5. High attenuation on 2nd harmonic suppressed
6. Suitable for 2.45 GHz Working Frequency Operation
APPLICATIONS
1. 2.4GHz ISM Band RF Application
2. Bluetooth, Wireless LAN, HomeRF
CONSTRUCTION
Fig 1. Outline of 2.4GHz Band Pass Filter
DESCRIPTION
Walsin Technology Corporation develops a new ceramic Band Pass Filter specified for 2.4 GHz ISM Band application, as
shown in fig-1. Both of Wireless LAN IEEE 802.11b, and BluetoothTM typically located on this unlicensed frequency band
which range covers from 2.4GHz to 2.4835GHz. To fulfil the in-band and out-band frequency requirements, this Band
Pass Filter has been designed to a high suppression on 2nd harmonic as well as low insertion loss characteristics
through Walsin’s advanced LTCC (Low Temperature Co-fired Ceramic) technology and superior product design via 3D
EM Simulation Skill.
This Band Pass Filter has a rectangular ceramic body with a tiny dimension of 3.2 x 2.5 x 1.5 mm3 future meet the SMT
automation and miniaturization requirements on modern portable devices.
DIMENSIONS
Figure Symbol Dimension
L 3.20 ± 0.20 mm
W 2.50 ± 0.20 mm
T 1.50 ± 0.10 mm
A 0.40 ± 0.20 mm
B 0.70 ± 0.20 mm
C 0.60 ± 0.20 mm
D 0.20 ± 0.15 mm
D
Walsin Technology Corporation
Page 3 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
SOLDER LAND PATTERN
Figure Symbol Dimension (mm)
L 3.40 ± 0.10
A 1.50 ± 0.10
B 1.20 ± 0.10
L1 2.80 ± 0.10
A1 0.30 ± 0.10
B1 0.90 ± 0.10
W1 0.60 ± 0.10
W2 0.50 ± 0.10
Line width to be design to match 50
characteristic
impedance, depending on PCB material and thickness Φ 0.40 ± 0.10
ELECTRICAL CHARACTERISTICS
n RFBPF3225150A3T Series
Item Specification
Frequency range (MHz) 2450 ± 50 MHz
Insertion Loss 2.5 dB (max)
VSWR 1.7
Ripple 0.6 dB
Attenuation (min.)
40 dB @ 1500 MHz ~ 1550 MHz
45 dB @ 1800 MHz ~ 1900 MHz
30 dB @ 2100 MHz
15 dB @ 2200 MHz
30 dB @ 4800 ~ 5000 MHz
*Note1: Rated power 5W MAX *Note2: Maximum Input power: 10W for 5 minutes
I/O Solder Pad Ground Solder Pad Ground Via
L
W2
W1
B1
A1
L1
B
A
I/O Solder Pad Ground Solder Pad Ground ViaI/O Solder PadI/O Solder Pad Ground Solder PadGround Solder Pad Ground ViaGround Via
L
W2
W1
B1
A1
L1
B
A
Walsin Technology Corporation
Page 4 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
Typical Electrical Chart:
Walsin Technology Corporation
Page 5 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
RELIABILITY TEST
n Mechanical performance
Test item Test condition / Test method Specification
Solderability Solder temp. : 235 ± 5°C
Immersion time: 2 ± 1 sec
Solder: SN63
At least 95% of a surface of
each terminal electrode must
be covered by fresh solder.
Resistance to soldering heat Solder: Sn63
Preheating temperature: 150 ± 10°C
Solder Temperature: 260 ± 5°C
Immersion time: 10 ± 1 sec
Measurement to be made after keeping at room
temp. for 24±2 hrs.
No mechanical damage.
Ceramic surface shall not be
exposed in the middle of the
termination or on the
terminated product edge by
leaching.
Drop Test Height : 75 cm
Direction : 3 directions
Times : 3 times for each direction.
No mechanical damage.
Samples shall satisfy
electrical specification after
test.
n Environmental characteristics
Test item Test condition / Test method Specification
Humidity (steady conditions) Humidity:90% to 95% R.H.
Tempertaure:40±2°C
Time: 500±24 hours.
Measurement: After placing for 24 hours Minimum.
No mechanical damage.
Samples shall satisfy electrical
specification after test.
Temperature cycle 1. 30±3 minutes at -40°C±3°C,
2. 10~15 minutes at room temperature,
3. 30±3 minutes at +85°±3°C,
4. 10~15 minutes at room temperature,
Total 100 continuous cycles
Measurement after placing for 48±2 hrs min.
No mechanical damage.
Samples shall satisfy
electrical specification after
test.
High temperature Temperature: 85°C±2°C
Test duration: 24 hours
Measurement must be taken after subjection to the
above conditions, followed by exposure in room
environment for 1 to 2 hours.
No mechanical damage.
Samples shall satisfy electrical
specification after test.
Low temperature Temperature: -40°C±3°C
Test duration: 24 hours
Measurement must be taken after subjection to the
above conditions, followed by exposure in room
environment for 1 to 2 hours.
No mechanical damage.
Samples shall satisfy electrical
specification after test.
Walsin Technology Corporation
Page 6 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
SOLDERING CONDITION
Typical examples of soldering processes that provide reliable joints without any damage are given in Fig 2,
Fig 2. Infrared soldering profile
ORDERING CODE
RF
BPF 322515
0
A 3 -
T
Walsin
RF
device
Product
Code
BPF : Band
Pass Filter
Dimension code
Per 2 digits of
Length, Width,
Thickness :
e.g. :
322515 = Length
32, Width 25,
Thickness 15
Unit of
dimension
0 : 0.1 mm
1 : 1.0 mm
Application
A : 2.4GHZ ISM
Band
B : GSM 900/1800
Dual Band
C : GSM 900
D : GSM 1800
E : GPS
F : W-CDMA
G : PHS
Specification
Code from 0 ~ 9
dependent on
different electrical
specification
Packing
T : 7” Reeled
G : 10” Reeled
B : Bulk
X : SFC product
PACKAGING
B0
P0
P2
P1
A0
T
W
F
E
ΦD
B0
P0
P2
P1
A0
T
W
F
E
ΦD
Walsin Technology Corporation
Page 7 of 7 AS_2.4GHz 3225BPF_A3_03 JULY-2002
A
B
C
D
Plastic Tape specifications (unit :mm)
Index Ao Bo ΦD T W
Dimension (mm) 2.85 ± 0.10 3.36 ± 0.10 1.55 ± 0.10 1.9 ± 0.10 8.0 ± 0.30
Index E F Po P1 P2
Dimension (mm) 1.75 ± 0.10 3.50 ± 0.05 4.00 ± 0.10 8.00 ± 0.10 2.00 ± 0.10
Reel dimensions (in mm)
Taping Quantity: 2000 pieces per 7” reel
CAUTION OF HANDLING
Limitation of Applications
Please contact us before using our products for the applications listed below which require especially high reliability
for the prevention of defects, which might directly cause damage to the third party’s life, body or property.
(1) Aircraft equipment
(2) Aerospace equipment
(3) Undersea equipment
(4) Medical equipment
(5) Disaster prevention / crime prevention equipment
(6) Traffic signal equipment
(7) Transportation equipment (vehicles, trains, ships, etc.)
(8) Applications of similar complexity and /or reliability requirements to the applications listed in the
above.
Storage condition
(1) Products should be used in 6 months from the day of WALSIN outgoing inspection, which can be
confirmed.
(2) Storage environment condition.
n Products should be storage in the warehouse on the following conditions.
n Temperature : -10 to +40°C
n Humidity : 30 to 70% relative humidity
n Don’t keep products in corrosive gases such as sulfur. Chlorine gas or acid or it may cause oxidization of
electrode, resulting in poor solderability.
n Products should be storage on the palette for the prevention of the influence from humidity, dust and son
on.
n Products should be storage in the warehouse without heat shock, vibration, direct sunlight and so on.
n Products should be storage under the airtight packaged condition.
Index A B C D
7” Reel Φ178 Φ60.0 Φ13.5 10.0±1.0