
RP Two-Port 180° SAW Resonators
(All parameters measured in 50
system)
RO and RP Series Notes
1)
Frequency aging is the change in fC with time and is specified at +65°C or less. Aging may exceed the specification for
prolonged temperatures above +65°C. Typically, aging is greatest the first year after manufacture, decreasing signifi-
cantly in subsequent years.
2)
The frequency fC is the frequency of minimum IL with the resonator in the specified test fixture in a 50 test system
with VSWR
≤ 1.2:1. Typically, f
OSCILLATOR or fTRANSMITTER is less than the resonator fC. |FA| is typically ±10 ppm/
year.
3)
One or more of the following United States patents apply: 4,454,488; 4,616,197, and others pending.
4)
Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibil-
ity of the equipment manufacturer.
5)
Unless noted otherwise, case temperature TC = +25°C± 5°C
6)
The design, manufacturing process, and specifications of this device are subject to change without notice.
7)
Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC
versus TC, and CO.
8)
Turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fO. The nominal frequency at any
case temperature, TC, may be calculated from: f = fO [1 - FTC (TO - TC)
2]. Typically, oscillator T
O is 20° less than the
specified resonator TO.
9a)
This equivalent RLC model approximates RO surface mount resonator performance near the resonant frequency and is
Part
Number
Resonant Freq. at 25°C
Insertion Loss
(dB)
Quality Factor
Ratings
Temperature Stability
Absolute
Fc (MHz)
Tolerance
F
c(kHz)
Typ.
Max
Unloaded
Q
50 W
Loaded Q
CW RF
Power
Dissipa-
tion
(dBm)
Turnover Temp. TO (°C)
Turnover
Freq.
FO (kHz)
Value
Min.
Typ.
Max.
Typ.
Notes
2, 3, 4, 5
2, 5, 6
5, 6, 7
6, 7, 8
RP1234
293.075
±100
13.1
18.0
12,000
9,400
+5
38
53
68
fc+8.5
RP1098
307.3
±100
11.0
18.0
13,000
9,600
+5
33
48
63
fc+6
RP1053
310.0
±250
14
18
4,000
3,200
0
47
62
77
fc
RP1239
315.0
±75
5.3
8.5
18,000
8,100
0
37
52
67
fc+8.5
RP1238
407.3
±100
5.4
8.0
13,700
6,300
0
43
58
73
fc+16
RP1237
418.0
±75
5.7
8.0
13,600
6,500
0
47
62
77
fc+21
RP1237-1
418.05
±75
5.7
8.0
13,600
6,500
0
47
62
77
fc+21
RP1298
423.22
±100
5.2
8.0
15,200
6,900
0
24
39
54
fc+2.6
RP1207-5
433.92
±75
8.2
10.0
12,700
7,800
+5
40
55
70
fc+14
RP1308
433.92
±75
6.3
8.0
12,000
6,300
0
36
51
66
fc+11
RP1102
905.5
±250
9.5
15.0
6,000
3,500
+5
44
59
74
fc+39
RP1286
906.0
±100
7.1
10.0
6,600
3,700
+5
16
31
46
fc+1
RP1261
913.612
±212
8.2
10.0
6,500
4,000
+5
23
38
53
fc+5.7
RP1094
915.0
±150
8.5
15.0
6,100
3,700
+5
53
68
83
fc+63
RP1285
916.55
±150
7.5
10.0
6,500
3,800
+5
23
38
53
fc+5
RP1103
924.5
±250
11.1
15.0
6,000
3,800
+5
34
49
64
fc+6
RP Series
24