Beryllium Copper Fingerstock

FSDS | Folded

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FSDS | Folded:

The FSDS is an FS gasket with its base lying on the same plane as the curve in the spring form,
with the mounting area shortened. This mounting is often modified for custom applications.

Options

PP = plating code from plating code table below

X.XXX = Desired length

Lengths greater than 24 inches are only available in the following finishes: BD, NI, SN, ST, SNPB

Imperial
Metric

Leader Tech Part Number	A (in)	B (in)	C (in)	D (in)	E (in)	F (in)	G (in)	T (in)	Max Length (in)	Fingers at Max Length	Adhesive
25-109FSDS-PP-X.XXX	0.250	1.090	0.160	0.140	0.380	0.335	0.040	0.0050	300	800	N
25-S-109FSDS-PP-X.XXX	0.250	1.090	0.160	0.140	0.380	0.335	0.040	0.0030	300	800	N
41-163FSDS-PP-X.XXX	0.410	1.630	0.190	0.140	0.500	0.460	0.040	0.0070	300	600	N

Leader Tech Part Number	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)	F (mm)	G (mm)	T (mm)	Max Length (mm)	Fingers at Max Length	Adhesive
25-109FSDS-PP-X.XXX	6.35	27.69	4.06	3.56	9.65	8.51	1.02	0.130	7619	800	N
25-S-109FSDS-PP-X.XXX	6.35	27.69	4.06	3.56	9.65	8.51	1.02	0.080	7619	800	N
41-163FSDS-PP-X.XXX	10.41	41.40	4.83	3.56	12.70	11.68	1.02	0.180	7619	600	N

Plating Code	Plating	Specification
BD	As Heat treated	As Heat Treated with Nitrogen
AU	Gold	ASTM B488, TYPE I, CODE C, CLASS 1.25
AG	Silver, Bright	ASTM B700, TYPE 2, GRADE B, CLASS N
MAG	Silver, Matte	ASTM B700, TYPE 2, GRADE A, CLASS N
CDC	Cadmium Chromate, Clear	ASTM B766, CLASS 5, TYPE III
CDY	Cadmium Chromate, Yellow	ASTM B766, CLASS 5, TYPE II
NI	Electroless Nickel RoHS	ASTM B733, SC1, CLASS 1
SN	Tin, Bright	ASTM B545, CLASS A
ST	Tin, Matte	ASTM B545, CLASS A
SNPB	Tin Lead	ASTM B579, SC2
SU	Solderable Unplated	-
ZINC	Zinc, Clear	ASTM B633, SC1, TYPE III
ZNY	Zinc, Yellow	ASTM B633, SC1, TYPE II

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Leader Tech Inc.

Leader Tech is a world leading innovator and manufacturer of EMI shielding products for circuit boards, electronic enclosures, thermal products, microwave absorbers and interconnect cables.