NDK 90E9A

Crystal Filter
2 Pole MCF
(Surface-mount Type)
n Features
This is a crystal filter that supports surface mounting. Adoption of a ceramic container
has enabled the dimensions of the filter to be 7 x 5 x 1.35 mm. Supports a wide
frequency range.
l Supports IR reflow and VSP.
(Contact us for information on the temperature profile.)
l Supports surface mounting. (Packed with embossed tape)
l Excellent heat- and shock-resistance.
l Good guaranteed attenuation.
l Frequency range Fundamental: 20 to 100 MHz, Overtone: 45 to 150 MHz
l Also supports 3-pole MCF.
Pb
Free
n Specifications
Model
21E7.5AD
21E15AB
21E30AD
21E7.5A
21E15AA
2
2
2
2
2
2
21.4MHz
21.4MHz
21.4MHz
21.7MHz
21.7MHz
21.7MHz
Number of poles
Nominal frequency
3dB Passband width
Stop bandwidth
Ripple
Insertion loss
21E30AF
±3.75kHz min.
±7.5kHz min.
±15kHz min.
±3.75kHz min.
±7.5kHz min.
±15kHz min.
±12.5 kHz max.
±25 kHz max.
±50 kHz max.
±12.5 kHz max.
±25 kHz max.
±50 kHz max.
at 15 dB
at 15 dB
at 15 dB
at 15 dB
at 15 dB
at 15 dB
1dB max.
1dB max.
1.5dB max.
1dB max.
1dB max.
1.5dB max.
2dB max.
1.5dB max.
1.5dB max.
2dB max.
1.5dB max.
1.5dB max.
(insertion attenuation)
Guaranteed attenuation
60 dB min.
60 dB min.
50 dB min.
60 dB min.
60 dB min.
50 dB min.
at –910 kHz
at –910 kHz
at –910 kHz
at –910 kHz
at –910 kHz
at –910 kHz
Spurious characteristics
15 dB min.
15 dB min.
15 dB min.
15 dB min.
15 dB min.
15 dB min.
Terminating impedance
1500Ω//5pF
1500Ω//1pF
2500Ω//1.2pF
850Ω//6pF
1500Ω//1pF
2000Ω//1.2pF
Operating temperature range
–20 to +70°C
–20 to +70°C
–20 to +70°C
–20 to +70°C
–20 to +70°C
–20 to +70°C
NM7050SA
NM7050SA
NM7050SA
NM7050SA
NM7050SA
NM7050SA
21E15AB-21.4MMN15-211
21E30AD-21.4MMN15-359
21E7.5A-21.7MMN15-366
21E15AA-21.7MMN15-209
21E30AF-21.7MMN15-365
Model
Number of poles
Nominal frequency
3dB Passband width
Stop bandwidth
Ripple
Insertion loss
45E7.5AB
45E15A
45E30AN
90E9A
2
2
2
2
45MHz
45MHz
45MHz
90MHz
±3.75kHz min.
±7.5kHz min.
±15kHz min.
±4kHz min.
±25 kHz max.
±25 kHz max.
±60 kHz max.
±50 kHz max.
at 20 dB
at 13 dB
at 20 dB
at 25 dB
1dB max.
1dB max.
1dB max.
0.5dB max.
2dB max.
3dB max.
2dB max.
5dB max.
n Dimensions
mm
NM7050SA
7.0±0.2
1.35±0.15
PAD No PAD CONNECTION
GND
1
GND
2
OUTPUT
3
GND
4
GND
5
INPUT
6
(insertion attenuation)
70 dB min.
at –910 kHz
10 dB min.
10 dB min.
5 dB min.
20 dB min.
Terminating impedance
200Ω//4pF
1000Ω//4pF
650Ω//1.5pF
200Ω//8pF
Operating temperature range
–20 to +70°C
–30 to +70°C
–20 to +70°C
–20 to +70°C
NM7050SA
NM7050SA
NM7050SA
NM7050SA
45E15A-45MMN15-297
45E30AN-45MMN15-369
90E9A-90MMN15-226
Package type
Code for placing an order 45E7.5AB-45MMN15-367
Reference land pattern
6–2.2
2
1
3
6
5
6–1.4
60 dB min.
at –910 kHz
4.0
70 dB min.
at –910 kHz
6–1.0
Spurious characteristics
60 dB min.
at –910 kHz
2.54
Guaranteed attenuation
2.54
MN15-358
2.0
Code for placing an order 21E7.5AD-21.4M-
5.0±0.2
Package type
4
6–1.2
6.0
cf12_071102_NM7050SA_e1