B3678
B3678 is SAW Components Low-loss Filter manufactured by EPCOS.
Features
Low-loss IF filter Low insertion attenuation Low amplitude ripple Usable passband 1 MHz No matching network required for operation at 200 Ω (input) and 50 Ω (output) q Balanced input, unbalanced output q Ceramic package for Surface Mounted Technology (SMT) q q q q q
Terminals q Ni, gold-plated
Dimensions in mm, approx. weight 0,1 g Pin configuration 5, 6 2 1 4, 8 3, 7 Type B3678 Balanced Input (200 Ω) Output (50 Ω) To be grounded Case ground Not connected Ordering code B39251-B3678-U310 Marking and Package according to C61157-A7-A56 Packing according to F61074-V8070-Z000
Electrostatic Sensitive Device (ESD)
Maximum ratings Operable temperature range Storage temperature range DC voltage Source power
T Tstg VDC Ps
- 25 / + 85
- 40 / + 85 0 0
˚C ˚C V d Bm
Nov 17, 1999
SAW ponents Low-Loss Filter Data Sheet
Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance:
B3678 246,0 MHz
T = -25 to +85˚C ZS = 200 Ω ZL = 50 Ω min. typ. 246,00 max.
- MHz
Nominal frequency Maximum insertion attenuation 245,5 ... 246,5 Amplitude ripple in any 200 k Hz span: 245,5 ... 246,5 245,5 ... 246,5 MHz MHz f N
αmax MHz ∆α
- -
1,9
2,5 d B
- - ∆τ
0,2 0,1
0,4 0,2 d B d B
Group delay ripple (p-p) 245,8 ... 246,2 245,5 ... 246,5 Attenuation 100,0 226,0 256,0 266,0 268,0 ... ... ... ... ... 226,0 236,0 266,0 268,0 500,0
MHz MHz αrel MHz MHz MHz MHz MHz
- -
10,0 15,0
40,0 50,0 ns ns
40 7 7 25 35
50 50 15 40 50
- -
- -
- d B d B d B d B d B
Nov 17, 1999
SAW ponents Low-Loss Filter Data Sheet
Transfer function (reduced three port meaurement)
B3678 246,0...
