RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://product.tdk.com/en/environment/rohs/
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150419 / rf_balun_hhm1749s1_en.fm
0.50
RF Components
HHM1749S1
ELECTRICAL CHARACTERISTICS
Item
Unbalanced Port Characteristic Impedance (:)
Balanced Port Characteristic Impedance (:)
Return Loss at Unbalanced Port (dB)
Phase Balance (deg.)
Amplitude Balance (dB)
Insertion Loss (dB)
Frequency Range
(MHz)
Min.
Typ.
50 (Nominal)
100 (Nominal)
—
—
—
—
Max.
1710 to 1990
1710 to 1990
1710 to 1990
1710 to 1990
10
170
–1.5
—
—
190
1.5
1.1
TEMPERATURE RANGE
Operating temperature
(°C)
–40 to +85
Storage temperature
(°C)
–40 to +85
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150419 / rf_balun_hhm1749s1_en.fm
RF Components
HHM1749S1
FREQUENCY CHARACTERISTICS
INSERTION LOSS
0.0
4
0.5
AMPLITUDE BALANCE
Insertion Loss(dB)
1.0
1.5
Amplitude Balance(dB)
2
0
2.0
–2
2.5
–4
3.0
1600
1700
1800
1900
Frequency(MHz)
2000
2100
1600
1700
1800
1900
Frequency(MHz)
2000
2100
RETURN LOSS
0
5
10
PHASE BALANCE
200
195
190
Phase Balance(deg)
Return Loss(dB)
15
20
25
30
35
40
1600
185
180
175
170
165
160
1600
1700
1800
1900
Frequency(MHz)
2000
2100
1700
1800
1900
Frequency(MHz)
2000
2100
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.
20150419 / rf_balun_hhm1749s1_en.fm
RF Components
RECOMMENDED REFLOW PROFILE
Preheating
Soldering
Peak
T4
T:
Temperature
3°C/sec
or lower
6°C/sec
or lower
T3
T3
T2
T1
t1
t3
t2
t:
Time
Preheating
Temp.
T1
150°C
t3
T2
200°C
Time
t1
60 to 120sec
Soldering
Critical zone (T3 to T4)
Temp.
Time
T3
t2
217°C
60 to 120sec
Peak
Temp.
T4
240 to 260°C
Time
t3
30sec max.
: Time within 5°C of actual peak temperature
The maximum number of reflow is 3.
• All specifications are subject to change without notice.
• Before using these products, be sure to request the delivery specifications.