Eulex Gap Capacitor

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Eulex microwave / millimeter wave gap capacitor

Quantic Eulex has developed a new low-profile gap capacitor with low insertion loss and ultra high self resonance frequencies. Specific applications include DC blocking, RF Bypass, impedance matching, filtering, tuning and coupling

The Eulex Gap Capacitor utilizes a novel patented internal electrode design allowing for significant leverage in capacitance for a given dielectric. These gains mean that Quantic Eulex can offer devices manufactured from ultra stable materials with high Q and extremely high self-resonance with useful capacitance values far exceeding those offered by other manufacturers.

Screenshot_2021-06-06 PowerPoint Presentation – Eulex Gap Capacitor 2021 pdf

Selection Guide

SIZE	XG15	XG20	XG25	XG30	XG35	XG40	XG50
Pad Width [W1] inch (mm)	0.015±0.003 (0.381±0.076)	0.020±0.003 (0.508±0.076)	0.025±0.003 (0.635±0.076)	0.030±0.003 (0.762±0.076)	0.035±0.003 (0.889±0.127)	0.040±0.003 (1.016±0.127)	0.050±0.003 (1.27±0.254)
Chip Width [W2] inch (mm)	0.020 Max (0.508 Max)	0.025 Max (0.635 Max)	0.030 Max (0.762 Max)	0.035 Max (0.889Max)	0.045 Max (1.143Max)	0.050 Max (1.27Max)	0.065 Max (1.615Max)
Length[L] inch (mm)	0.040 Max (1.016Max)	0.050 Max (1.270Max)	0.080 Max (2.032Max)	0.080 Max (2.032Max)	0.080 Max (2.032Max)	0.080 Max (2.032Max)	0.080 Max (2.032Max)
Thickness[T] inch (mm)	0.005±0.002 (0.127±0.051)	0.005±0.002 (0.127±0.051)	0.005±0.002 (0.127±0.051)	0.005±0.002 (0.127±0.051)	0.007±0.002 (0.178±0.051)	0.007±0.002 (0.178±0.051)	0.007±0.002 (0.178±0.051)
Gap[G] inch (mm)	0.005 (0.127)	0.005 (0.127)	0.005 (0.127)	0.005 (0.127)	0.005 (0.127)	0.010 (0.254)	0.010 (0.254)

Selection Guide

6.3 V	XG15		XG20		XG25		XG30		XG35		XG40		XG50
Dielectric	Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)
Dielectric	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
P	0.95	1.1	1.8	2	2.8	3.3	4	4.7	5.7	6.5	7.5	8.7	11	13
Q	3.2	3.6	5.8	6.6	9.1	10	13	15	18	22	24	28	40	44
N	14	16	25	29	40	47	60	68	82	91	110	120	170	190
C	48	56	88	100	140	160	200	240	280	330	370	430	590	680
X	410	470	760	870	1200	1400	1700	2000	2400	2800	3200	3600	5000	5800
Y**	700	2000	3200	3600	5000	5700	7400	8400	10000	12000	13000	15000	21000	24000

16 V	XG15		XG20		XG25		XG30		XG35		XG40		XG50
Dielectric	Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)
Dielectric	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
P	0.65	0.75	1.2	1.4	1.9	2.2	2.7	4.4	3.7	4.4	4.8	5.6	7.5	8.7
Q	2.2	2.5	3.9	4.6	6.2	7.2	9	10	12	14	16	18	25	30
N	9.4	11	17	20	27	31	39	45	51	60	68	80	108	125
C	33	39	60	70	94	110	140	160	180	210	240	280	370	430
X	290	330	510	600	810	930	1100	1300	1600	1800	2100	2400	3200	3800
Y**	1200	1400	2100	2500	3400	3900	4900	5600	6500	7600	8600	10000	13000	15000

25 V	XG15		XG20		XG25		XG30		XG35		XG40		XG50
Dielectric	Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)
Dielectric	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
P	0.55	0.65	1	1.8	1.6	1.8	2.3	2.6	3.1	3.5	4	4.6	6.3	7.2
Q	1.9	2.1	3.3	3.7	5.2	105.8	7.5	8.5	10	11	13	15	20	24
N	8	9	14	16	23	25	33	36	43	50	58	65	90	100
C	27	33	50	57	80	90	110	130	150	180	200	220	320	360
X	240	270	430	490	680	750	970	1100	1300	1500	1800	2000	2700	3000
Y**	1000	1200	1800	2000	2800	3200	4000	4600	5500	6200	7200	8200	11000	13000

50 V	XG15		XG20		XG25		XG30		XG35		XG40		XG50
Dielectric	Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)
Dielectric	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
P	0.5	0.55	0.9	1	1.4	1.5	2	2.2	2.7	3	3.5	3.9	5.4	6
Q	1.6	1.8	2.9	3.2	4.5	5	6.5	7.2	8.8	10	12	13	18	20
N	7	7.8.	12	14	20	22	27	33	38	43	49	56	80	86
C	25	27	43	49	68	75	100	110	130	150	170	190	270	300
X	210	230	370	420	580	650	840	930	1200	1300	1500	1700	2400	2600
Y**	870	970	1600	1800	2500	2700	3500	3900	4800	5200	6200	6800	9800	11000

100 V	XG15		XG20		XG25		XG30		XG35		XG40		XG50
Dielectric	Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)		Cap (pF)
Dielectric	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
P	0.4	0.45	0.75	0.82	1.2	1.3	1.6	1.8	2.3	2.5	2.9	3.3	4.6	5.1
Q	1.3	1.5	2.4	2.7	3.7	4.3	5.4	6.2	7.2	8.2	9.6	11	15	18
N	5.8	6.6	11	12	16	18	23	27	33	36	39	47	65	72
C	20	23	37	40	57	640	82	91	110	130	150	160	230	270
X	180	200	330	360	490	560	700	780	960	1100	1200	1400	2000	2200
Y**	750	820	1300	1500	2000	2300	3000	3300	4000	4500	5200	5800	8200	9100

Example Part Number (How To Order)

XG	L	40	X	302	K	G	W
Gap Capacitor	Voltage Code	Case Size	Dielectric Type	Capacitance	Cap Tolerance	Metallization	Packing

Dielectric Type	P	Q	N	C	X	Y
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-30°C to +85°C
Temperature Coefficient [/°C]	Neg.	±25ppm	±30ppm	+0-5%	±15%	+22%-82%
Max Dissipation Factor	0.01%	0.10%	0.15%	0.05%	2.50%	=4.00%
Insulation Resistance @ 25°C	100GΩ	100GΩ	100GΩ	100GΩ	100GΩ	10GΩ
Insulation Resistance @ 125°C	100GΩ	10GΩ	10GΩ	10GΩ	10GΩ	1GΩ

Dielectric Type
P	Porcelain
Q	Class I/NPQ
N	Class I/NPO
C	Class I/NCS
X	Class II/X7R
Y	Class III/Y5V

Capacitance Code
R05	0.05pF
0R2	0.20pF
1R0	1.0pF
2R7	2.7pF
270	27pF
271	270pF
102	1000pF

Dielectric	Cap Limit	Capacitance Tolerance
(P,Q)	<9.1pF	B±0.10pF
(P,Q)	<9.1pF	C±0.25pF
(P,Q)	<9.1pF	D±0.50pF
(P,Q)	>10pF	G±2%
(P,Q,N)	>10pF	J±5%
All		k±10%
All		M±20%
All		Z±80-20%

Voltage Code
A	6.3VDC
E	16VDC
L	25VDC
G	50VDC
B	100VDC

Packing
W	ESD Waffle Pack

Termination
G	Gold

Electrical & Mechanical Characteristics
Voltage Rating:	6.3, 16, 25, 50, 100 WVDC
Insulation Resistance:	See Chart (Dielectric Code)
Dielectric Withstanding Voltage:	250% of WVDC
Dissipation Factor:	See Chart (Dielectric Code)
Capacitance Test:	Values > 1000pF (1.0±0.2 VRMS@ 1KHz, 25°C) Values ≤ 1000pF (1.0±0.2 VRMS@ 1KHz, 25°C)
Shear Strength,min:	Size dependent
99.9% Au Termination, min:	100µin