SAW Resonators
PARM Series
Surface Acoustic Wave Resonator for
Remote Keyless Entry System (RKE)
How to Order
PARM 315.00 K 04 R
①
②
Features
• Ultra-miniature size
• 1 port type SMD resonator
• High reliability
• Excellent temperature characteristics
③ ④ ⑤
①
Series
②
Resonant Frequency (MHz)
③
Marking Code
④
Frequency Tolerance or Custom Spec.
00
01
02
03
±250kHz
±200kHz
±150kHz
±100kHz
04
05
11≤
±75kHz
±50kHz
Custom Spec.
Applications
Pb Free
RoHS Compliant
• Remote Keyless Entry System (RKE)
• Garage Openers
• Security Systems
⑤
Type
Dimensions
½½½½½½
½½½½½½½½
½½½½½½
②
(Unit: mm)
Recommended Land Pattern
½½½
½½½
(Unit: mm)
Packaging
½½½½½½½ ½½½½½½½
(Unit: mm)
②
½½½
½½½½½½
②
①
②
½½½½
½½½
②
½½½½½½½
½½½½½½
½½½½½½½
½½½½½½½½ ½½½½½½ ½½½½½½½
½½½½½½
½½½½½½½½
½½½½½½
½½½½½½½½
½½½
½½½
①
①
①
②
½½½½
½①½ ½½½
½②½ ½½½½½½
②
½½½½½½½
½①½ ½½½
½②½ ½½½½½½
②
½½½
½½½½½½½½
½½½½½½
½½½½½½½½
½½½½½½½½
½½½½½½½
Specifications
Part Number
PARM315.00K04R
PARM433.92K04R
Resonant
Frequency (MHz)
315.000±0.075
433.920±0.075
Temperature
Parallel
Operating
Storage
Resonant
Characteristics
Loss (dB) Capacitance (pF) (ppm/
°C
2
) Temperature (°C) Temperature (°C)
2.5 max.
4.0 max.
−0.03
typ.
−40
to 85
−40
to 85
Recommended Temperature IR Reflow
Temp. (°C)
250
200
150
100
50
0
0 to 60 sec. 60 to 120 sec.
Time
180°C min.
40 sec. max.
200°C min.
15 sec. max.
Peak Temp.
230°C5°C