©2010-2014 by Murata Electronics N.A., Inc.

RO3101A-1 (R) 4/3/14

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Electrical Connections

The SAW resonator is bidirectional and may be

installed with either orientation. The two terminals

are interchangeable and unnumbered. The callout

NC indicates no internal connection. The NC pads

assist with mechanical positioning and stability.

External grounding of the NC pads is

recommended to help reduce parasitic

capacitance in the circuit.

Typical Test Circuit

Typical Application Circuits

Equivalent Model

Temperature Characteristics

The curve shown on the right

accounts for resonator

contribution only and does not

include LC component

temperature contributions.

Case

Terminal

Terminal

ELECTRICAL TEST

From 50 

Network Analyzer

To 50 

Network Analyzer

50  Source

at F

C

REFLECTED

INCIDENT

P

P

Low-Loss

Matching

Network to

50 

Terminal

Terminal

NC

NC

POWER TEST

CW RF Power Dissipation =

INCIDENT -

REFLECTED

P

P

C1

C2

L1

(Antenna)

+9VDC

47

RF Bypass

Modulation

Input

Typical Low-Power Transmitter Application

RO3XXXA

Bottom View

470

200k

C1

C2

L1

Output

+VDC

RF Bypass

+VDC

Typical Local Oscillator Applications

RO3XXXA

Bottom View

Dimensions

Millimeters

Inches

Min

Nom

Max

Min

Nom

Max

A

4.87

5.00

5.13

0.191

0.196

0.201

B

3.37

3.50

3.63

0.132

0.137

0.142

C

1.45

1.53

1.60

0.057

0.060

0.062

D

1.35

1.43

1.50

0.040

0.057

0.059

E

0.67

0.80

0.93

0.026

0.031

0.036

F

0.37

0.50

0.63

0.014

0.019

0.024

G

1.07

1.20

1.33

0.042

0.047

0.052

H

-

1.04

-

-

0.041

-

I

-

1.46

-

-

0.058

-

J

-

0.50

-

-

0.019

-

K

-

1.05

-

-

0.041

-

L

-

1.44

-

-

0.057

-

M

-

0.71

-

-

0.028

-

0.05 pF*

0.05 pF

Cp

Co

+

=

*Case Parasitics

Cp

Rm

Lm

Cm

-80 -60 -40 -20

0 +20 +40 +60

0

-50

-100

-150

+80

-200

0

-50

-100

-150

-200

f

T = T

B

C

D

E ( 3 x )

F ( 4 x )

G ( 1 x )

T o p V i e w

S i d e V i e w

B o t t o m V i e w

1

2

3

4

H

H

I

H

J

I

H

I

K

L

PCB Land Pattern

Top View

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