Golledge F11/8 leaded filter package

GMCF-21 21G7D

21.4MHz 8 pole crystal filter with 7.5kHz 3dB bandwidth

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  • Custom specifications available
Configurable Options
ParameterOption Code

The GMCF-21 21G7D has no configurable options.
Please see the specifications table for more details or contact our team today if you have other specification requirements.

Quantity / Special Request

Please specify the quantity you require below.

The GMCF-21 21G7D is supplied in boxes.

Product Description

The GMCF-21 21G7D 8 pole crystal filter from Golledge with centre frequency of 21.4MHz features a 7.5kHz 3dB bandwidth. Discover full specifications, including insertion loss and package size here.

Centre frequency 21.4MHz
Dimensions 11.0 x 8.5 x 11.5mm
Operating temperature range -20 to +70°C
Number of poles 8
Pass band -3dB @ ±3.75kHz min
Attenuation band -90dB @ ±12.5kHz max
In-band ripple 2.0dB max
Insertion loss 4.0dB max
Guaranteed attenuation -90dB max ±12.5 ~ ±300kHz
Termination 850Ω // 5.0pF
Package style F11/8A
Package Drawing
Golledge 11x8mm leaded crystal filter package
Ordering Information

To request a quotation for the GMCF-21 21G7D 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 (or not applicable)


Metal can Epoxy base


PbFree Lead-free (< 0.1% by weight )

RoHS compliant with no exemptions RoHS compliant with no exemptions. See our declaration

REACH REACH compliant. See our statement

Conflict Minerals Statement Free of conflict minerals. See our declaration

Halogen Free Statement Free of Halogens. See our declaration

Ozone Depletion Statement Free of Ozone-depleting substances. See our declaration