
NSVS981 Apr. 2005 
Application 
  Electrical Specification: (Table 1) 
    The device characteristics are measured in the circuit shown in Fig.1. 
  Maximum Rating: (Table 2) 
 Mechanical Specifications: (Fig.2) 
    Package is designed as small as 3.2x2.5x1.1[mm
  Notice: 
  This part is electrostatic discharge sensitive and may be damaged by improper handling. 
693.483MHz Data Communications 
Table 1. Electrical Specifications              (at Room Temperature) 
Item Spec. Typ. 
Nominal Center Frequency (f0)  693.379~693.587MHz  693.483MHz 
Insertion Loss at f0  4.0dB max.  2.5dB 
Loaded Q  -  1150 
Attenuation f0±2MHz 20dB  25dB 
Insertion Phase  693.483MHz  -  Reference(*1) 
Turnover Temperature  32~52ºC  42ºC 
Phase Slope   -  0.32deg/kHz 
Frequency Temperature Coefficient  -  -0.045ppm/ºC2 
Substrate Material  -  Quartz 
Table 2. Maximum Ratings   
Item Rating 
Maximum Input Power  10dBm 
Operating Temperature Range  -30~+85ºC 
Storage Temperature  -30~+85ºC 
http://www.jrc.co.jp/jp/product/device/saw/index.html (Japanese) 
JRC SAW FILTER 
NSVS981 
*1: Nominal Phase = 0ºType
3
] for SMD (Surface Mount Device) type. 
Communications Equipment Division 
Communications Equipment Marketing Department 
10-1, Nishi-Shinjuku 6-chome, Shinjuku-ku, 
Tokyo, 160-8328 Japan 
Tel. +81 3-3348-3845 
Fax. +81 3-3348-3935 
http://www.jrc.co.jp/eng/product/saw/index.html(English) 
 

NSVS981 Apr. 2005 
IN 
50Ω 
SAW
6
12
45
3
OUT 
50
(b)
Fig.1 Measuring circuit
3. 2±0. 1
2. 5±0. 1
33 
KM 
(2)
(a)
(1)
1. 1±0. 1
(1.35)
[4x]
1
2
(0.6)
(0.8)
[2x]
6
[2x]
3
[4x]
(0.55)
5
Fig.2 Package dimensions (in mm)
1.75
4
4.0
1.75
Marking 
(1) Lot Number 
 (a) Year 
 (b) Month 
 *Oct.--- X 
  Nov.--- Y 
  Dec.--- Z 
(2) Part number Mark 
Pin no.  Connection 
1 GND 
2 IN/OUT 
3 GND 
4 GND 
5 OUT/IN 
6 GND 
0.95
1.2
3.3
0.6
0.95
Fig.3 Desirable land area (in mm)
 

NSVS981 Apr. 2005 
Notice 
1. Use this component within operating temperature range. It might not be 
satisfied with electrical specification without operating temperature range. 
When it is used less than –30ºC or more than +85ºC, it might be a cause of 
degradation or destruction of the component. Even if it endures during a short 
time, it causes degradation of qualification. 
2. When soldering iron is used, solder with the temperature at the tip of 
soldering iron: 350ºC max., the time of soldering: 10 seconds max., the power 
of soldering iron: 30W max.. 
3. Notice that the allowed time of soldering with soldering iron is accumulated 
time, when soldering is repeated. 
4. As rapid temperature change for cleaning after reflow soldering might be a 
cause of destruction clean this component after confirming that temperature 
of this component goes down to room temperature. 
5. Confirm that there are not any influence for qualification to this component in 
mounting on PCB when this component is cleaned. 
6. As it might be a cause of degradation of destruction to apply static electricity 
to this component, do not apply static electricity or excessive voltage while 
assembling and measuring. And do not transport this component with bare 
hand. 
Note 
1. This specification specifies the quality of this component as a single unit. 
Make sure that this component is evaluated and confirmed against this 
specification when it is mounted to your products. 
2. The information contained herein may be changed without prior notice. It is 
therefore advisable to contact Japan Radio Company before proceeding with 
the design of equipment incorporating this product. 
3. The products are designed to be used with ordinary electronic equipment 
(data and communications equipment, office equipment, audio-video 
equipment, measuring instruments, etc). Japan Radio Company does not 
assume any liability for the case using the products with the application 
required high reliability or safety extremely (such as space equipment, 
sea-bottom equipment, medical equipment etc). When intending to use any 
our product  please contact our sales representatives in advance. 
 

Fig.1 Measuring circuit 
(R0.3)
[4
×]
(1.4)
(0.8 )
[12×]
Pin No. Connection
1GND(PKG) 
2GND(PKG) 
3 GND(PKG) 
4GND(PKG) 
5OUT/IN 
6 GND(signal) 
7GND(PKG) 
8GND(PKG)
9GND(PKG) 
10 GND(PKG ) 
11 IN/OUT 
12 GND(signal)
(b)
(3)
Marking 
(1) Manufacture's Mark 
(2) Lot Number
(a) Year 
(b) Month
*Oct.--- X
Nov.--- Y 
Dec.--- Z
(c) Da te
1-9 --- 0 
10 -19--- 1 
20 -31--- 2
(3) Part Number Mark
(1.26± 0.1 3)
[12× ]
[12× ]
(2.5 4 )
(R0.3)
(2)
4
5
6
7
8
910
(C)
1234
10
987
11
12
6
5
OUT
50O
SAW
*27nH
*27nH
39pF
33pF
*murata LQW 18Aseries
 0 
FREQUENCY CHARACTERISTICS
 0 
Insertion Loss [dB]
Insertion Loss [dB]
 20 
 40 
 60 
 80 
 100 
CH1: Center 693.483 Span: 10 
CH2: Center 693.483 Span: 10 
 0 
 2 
 4 
 6 
 8 
 10 
CH1: Center 693.483 Span: 1 
CH1: Center 693.483 Span: 1 
S11 S22
 2 
 4 
 6 
 8 
Insertion Loss [dB]
 10 
 180 
 90 
 0 
-90 
Phase [deg]
-180 
Japan Radio Co.,Ltd.