GMCF-21 21G12B

GMCF-21 21G12B 21.4MHz 4 pole crystal filter with 12.0kHz 3dB bandwidth

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  • Custom specifications available
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Configurable Options
ParameterOption Code
Package
Quantity / Special Request

Please specify the quantity you require below.

The GMCF-21 21G12B is supplied in either a leaded (UM-1 or UM-5 style) package, or a jacketed (UM-1J or UM-5J) package. UM-1 or UM-5 style packaged products are supplied in boxes or bags. Please see handling & storage specification for more information on how filter pairs are supplied for these products. UM-1J or UM-5J style packaged products are supplied on tape and reel. 300 pcs per reel is the standard T&R pack sizes for these products. Partial quantities may be supplied on tape (no reel), or in bulk. These filters are supplied as a pair of units with a pocket space between matching pairs, please see tape & reel specification for more information.
Specifications
Centre frequency 21.4MHz
Dimensions Package options available - see Package Drawing
Operating temperature range -20 to +70°C
Number of poles 4
Pass band -3dB @ ±6.0kHz min
Attenuation band -40dB @ ±20.0kHz max
In-band ripple 1.0dB max
Insertion loss 2.5dB max
Guaranteed attenuation -65dB max +350 ~ +1000kHz
-80dB max -200 ~ -1000kHz
Termination 1200Ω // 2.5pF
Coupling capacitance (CC) 10.5pF
Package style UM-1/3Lx2, UM-5/3Lx2 (through-hole)
UM-1JN/3Lx2, UM-5JN/3Lx2 (SMT)
Package Drawing
Package footprint and configuration drawing for 2-unit UM-1 and UM-5 Crystal filters
Ordering Information

To request a quotation for the GMCF-21 21G12B please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at sales@golledge.com.

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.

Handling & Storage

ESD-HBM-1A Human Body Model (HBM) 1A (250V to < 500V)

MSL1 Moisture Sensitivity Level (MSL): 1

Construction
Resistance weld
Compliance