Crystal Units

Crystal units are used as resonators in crystal oscillator circuits and have a highly accurate frequency, tight tolerance and long-term stability. They come in a wide range of frequencies and provide the clock source. Specifications include resonance frequency, resonance mode, load capacitance and series resistance. The mode of oscillation in the resonance frequency operation is specified at the fundamental frequency or the third overtone.

Crystal Unit Modes

Crystals have two resonance modes, parallel and series. Load capacitance is an important specification when using parallel-resonant oscillation mode. Oscillator circuits can tolerate some degree of series resistance. Metal, ceramic epoxy and plastic package variety for crystals offer excellent environmental and heat resistance. Applications of a crystal are found in mobile phones, clock circuit for microprocessors, GPS clocks, and ISM band radio frequency communications.

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Epson 25MHz Crystal Unit ±10ppm TSX-3225 4-Pin 3.2 x 2.5 x 0.6mm RS庫存編號: 904-7575 製造零件編號: X1E000021067712 Datasheets: TWD59.80 每個 (每盤 5 個)	Epson	25MHz	Surface Mount	12pF	TSX-3225	4	3.2mm	2.5mm	0.6mm	3.2 x 2.5 x 0.6mm	±10ppm	-	40Ω	85°C	-40°C
MERCURY 12MHz Crystal ±30ppm SMD 4-Pin 5 x 3.2 x 0.9mm RS庫存編號: 672-0448 製造零件編號: MJ-12.000-12-30/30/4085 Datasheets: TWD45.20 個 (每包:5個)	MERCURY	12MHz	Surface Mount	12pF	SMD	4	5mm	3.2mm	0.9mm	5 x 3.2 x 0.9mm	±30ppm	±30ppm	50Ω	85°C	-40°C
Euroquartz 8MHz Crystal ±30ppm SMD 2-Pin 12.4 x 4.5 x 4.2mm RS庫存編號: 693-8869 製造零件編號: 8.000MHz 49USMX/30/50/-40+85/18pF/ATF Datasheets: TWD17.00 個	Euroquartz	8MHz	Surface Mount	18pF	SMD	2	12.4mm	4.5mm	4.2mm	12.4 x 4.5 x 4.2mm	±30ppm	±50ppm	80Ω	85°C	-40°C
Epson 32.768kHz Crystal Unit ±20ppm SMD 4-Pin 8 x 3.2 x 2.38mm RS庫存編號: 667-6117 製造零件編號: Q13MC3061000311 Datasheets: TWD38.80 個 (每包:5個)	Epson	32.768kHz	Surface Mount	12.5pF	SMD	4	8mm	3.2mm	2.38mm	8 x 3.2 x 2.38mm	±20ppm	-	50kΩ	85°C	-40°C
ECS Inc International 8MHz Crystal Oscillator SMD 4-Pin 7 x 5mm RS庫存編號: 301-199 製造零件編號: ECS-080-18-20BM-JEN-TR Datasheets: TWD48.00 個	ECS Inc International	8MHz	Surface Mount	18pF	SMD	4	-	-	-	7 x 5mm	-	-	-	-	-
ECS Inc International 32MHz Crystal Oscillator SMD 4-Pin 1.6x 1.2mm RS庫存編號: 301-228 製造零件編號: ECS-320-8-47B-7KM-TR Datasheets: TWD22.00 個	ECS Inc International	32MHz	Surface Mount	8pF	SMD	4	-	-	-	1.6x 1.2mm	-	-	-	-	-
ECS Inc International 32.768kHz Crystal Oscillator SMD 4-Pin 3.2 x 1.5mm RS庫存編號: 301-128 製造零件編號: ECX-.327-CDX-2096 Datasheets: TWD23.00 個	ECS Inc International	32.768kHz	Surface Mount	12.5pF	SMD	4	-	-	-	3.2 x 1.5mm	-	-	-	-	-
ECS Inc International 32.768kHz Crystal Oscillator SMD 4-Pin 8 x 3.8mm RS庫存編號: 301-268 製造零件編號: ECS-.327-12.5-17X-TR Datasheets: TWD24.00 個	ECS Inc International	32.768kHz	Surface Mount	12.5pF	SMD	4	-	-	-	8 x 3.8mm	-	-	-	-	-
ECS Inc International 32MHz Crystal Oscillator SMD 4-Pin 2 x 1.6mm RS庫存編號: 301-260 製造零件編號: ECS-320-8-37B-7KM-TR Datasheets: TWD13.00 個	ECS Inc International	32MHz	Surface Mount	8pF	SMD	4	-	-	-	2 x 1.6mm	-	-	-	-	-
ECS Inc International 32.768kHz Crystal Oscillator SMD 2-Pin 3.2 x 1.5mm RS庫存編號: 301-298 製造零件編號: ECS-.327-9-34QCN-TR Datasheets: TWD26.00 個	ECS Inc International	32.768kHz	Surface Mount	9pF	SMD	2	-	-	-	3.2 x 1.5mm	-	-	-	-	-
ECS Inc International 16MHz Crystal Oscillator SMD 4-Pin 2.5 x 2mm RS庫存編號: 301-332 製造零件編號: ECS-160-10-36Q-ES-TR Datasheets: TWD31.00 個	ECS Inc International	16MHz	Surface Mount	10pF	SMD	4	-	-	-	2.5 x 2mm	-	-	-	-	-
ECS Inc International 32.768kHz Crystal Oscillator SMD 2-Pin 2 x 1.2mm RS庫存編號: 301-266 製造零件編號: ECS-.327-12.5-12R-TR Datasheets: TWD20.00 個	ECS Inc International	32.768kHz	Surface Mount	12.5pF	SMD	2	-	-	-	2 x 1.2mm	-	-	-	-	-
ECS Inc International 12MHz Crystal Oscillator SMD 4-Pin 2.5 x 2mm RS庫存編號: 301-214 製造零件編號: ECS-120-12-36Q-CWY-TR Datasheets: TWD17.00 個	ECS Inc International	12MHz	Surface Mount	12pF	SMD	4	-	-	-	2.5 x 2mm	-	-	-	-	-
ECS Inc International 25MHz Crystal Oscillator SMD 4-Pin 5 x 3.2mm RS庫存編號: 301-242 製造零件編號: ECS-250-20-30B-DU Datasheets: TWD39.00 個	ECS Inc International	25MHz	Surface Mount	20pF	SMD	4	-	-	-	5 x 3.2mm	-	-	-	-	-
ECS Inc International 16MHz Crystal Oscillator SMD 2-Pin 5 x 3.2mm RS庫存編號: 301-278 製造零件編號: ECS-160-18-30-JGN-TR Datasheets: TWD25.00 個	ECS Inc International	16MHz	Surface Mount	18pF	SMD	2	-	-	-	5 x 3.2mm	-	-	-	-	-
ECS Inc International 25.000MHz Crystal Oscillator SMD 4-Pin 3.2 x 2.5 x 0.8mm RS庫存編號: 301-144 製造零件編號: ECS-250-8-33-JGN-TR Datasheets: TWD15.00 個	ECS Inc International	25.000MHz	Surface Mount	8pF	SMD	4	-	-	-	3.2 x 2.5 x 0.8mm	-	-	-	-	-
ECS Inc International 12MHz Crystal Oscillator SMD 2-Pin 7 x 4.1mm RS庫存編號: 301-121 製造零件編號: ECS-120-20-3X-TR Datasheets: TWD9.00 個	ECS Inc International	12MHz	Surface Mount	20pF	SMD	2	-	-	-	7 x 4.1mm	-	-	-	-	-
ECS Inc International 8MHz Crystal Oscillator SMD 4-Pin 5 x 3.2mm RS庫存編號: 301-282 製造零件編號: ECS-80-18-30B-AGN-TR Datasheets: TWD20.00 個	ECS Inc International	8MHz	Surface Mount	18pF	SMD	4	-	-	-	5 x 3.2mm	-	-	-	-	-
ECS Inc International 8MHz Crystal Oscillator SMD 2-Pin 5 x 3.2mm RS庫存編號: 301-288 製造零件編號: ECS-80-8-30Q-VS-TR Datasheets: TWD28.00 個	ECS Inc International	8MHz	Surface Mount	8pF	SMD	2	-	-	-	5 x 3.2mm	-	-	-	-	-
ECS Inc International 16MHz Crystal Oscillator SMD 4-Pin 3.2 x 2.5mm RS庫存編號: 301-196 製造零件編號: ECS-160-8-33B-CTN-TR Datasheets: TWD16.00 個	ECS Inc International	16MHz	Surface Mount	8pF	SMD	4	-	-	-	3.2 x 2.5mm	-	-	-	-	-