希華晶體科技成立于1988年，專精于石英頻率控制元件之研發、設計、生產與銷售。從人工晶棒長成到最終產品，透過最佳團隊組合及先進之生產技術，建立完整產品線，包含人工水晶、石英晶片、SAW WAFER，以及石英晶體、晶體振蕩器、晶體濾波器、溫度補償型及電壓控制型產品等晶振，以健全的供應鏈系統，為客戶提供全方位的服務。
In response to the rapid-growing demand for global telecommunications, Siward was established in 1988. We are world leading manufacturer in crystals and oscillators industry, providing products range from synthetic quartz to in-house design and manufacture crystal units. Focusing on cutting-edge technology development and professional R&D teams are our strength. We are able to supply a broad product portfolio, including X'tal, OSC, TCXO, VCXO and VCTCXO to meet customers demand from different industries and applications.

產品應用范圍包含行動電話、平板電腦、衛星通訊、車載系統、全球定位系統、個人電腦、無線通信及家用產品等，扮演基本信號源產生、傳遞、濾波等功能。持續致力于技術研究開發及品質落實扎根，營運據點遍布臺灣、中國大陸、日本、新加坡、美國及歐洲等世界各地，使希華得以提供服務予世界電子大廠。
Our products are widely for applications in networking communication, mobile, PC/NB, consumers, IoT, wearable, GPS, industrial and automotive. We serve customers throughout our sales offices, R&D centers, and manufacturing facilities spread over Taiwan, Mainland China, Japan, Malaysia, the United States, and Europe. We has consistently experienced strong growth by building solid partnership with our customers since we are not only deliver the best quality of crystal products, but also support our customer to be a leading company in the industry.

敏銳地掌握電子產品輕薄短小化、快速光電寬頻傳輸與高頻通訊的發展主流，致力于開發小型化、高頻與光電領域等產品，與日本同業并駕齊驅。且深耕微機電 (MEMS) 技術領域，加速導入TF SMD Crystal的量產，借以擴大公司營收規模并且提升獲利空間。
Siward is able to grasp the development mainstream of the electronic products keenly and dedicated to developing the miniaturized, high-frequency and optoelectronic products to keep pace with the Japanese competitors. To utilize the MEMS technology on TF SMD Crystal manufacture process, and so as to expand the market scale and raise the profitability.

藉由臺灣、日本、大陸三地的產品設計開發與制程資源整合，不斷開發創新及制程改造，以全系列完整產品線，來滿足客戶對石英元件多樣化的需求。積極地透過產學合作與配合國外技術引進開發新產品，并投資海外同業大廠，發展國防衛星等高階產品，多角化經營、擴大市場領域，此亦為公司得以永續經營的方針。

By means of advanced technology, Siward is devoted to providing its customers with innovative, high value-added product portfolios. Its full series of production lines are flexibly employed to develop all kinds of crystal component applications, ensuring the company to stay one step ahead with business opportunities secured and synergies achieved.技術支持

SIWARD原廠編碼	生產商品牌	型號	頻率	頻率偏差度	負載電荷	工作溫度
XTL721-Q23-048	Siward晶振	XTL72	32.768 kHz	±20ppm	6pF	-40°C ~ 85°C
XTL721-S349-005	Siward晶振	XTL72	32.768 kHz	±20ppm	7pF	-40°C ~ 85°C
XTL721-S999-301	Siward晶振	XTL72	32.768 kHz	±20ppm	9pF	-40°C ~ 85°C
XTL721-S999-429	Siward晶振	XTL72	32.768 kHz	±20ppm	6pF	-40°C ~ 85°C
XTL741-S999-319	Siward晶振	XTL74	32.768 kHz	±20ppm	9pF	-40°C ~ 85°C
XTL741-U11-402	Siward晶振	XTL74	32.768 kHz	±20ppm	7pF	-40°C ~ 85°C
XTL741-S999-298	Siward晶振	XTL74	32.768 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL741-S999-379	Siward晶振	XTL74	32.768 kHz	±20ppm	7pF	-40°C ~ 85°C
XTL741-S999-327	Siward晶振	XTL74	32.768 kHz	±20ppm	4pF	-40°C ~ 85°C
XTL721-S999-286	Siward晶振	XTL72	32.768 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL751-S999-544	Siward晶振	XTL75	32.768 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL751-S999-548	Siward晶振	XTL75	32.768 kHz	±20ppm	9pF	-40°C ~ 85°C
XTL751-S999-420	Siward晶振	XTL75	32.768 kHz	±20ppm	7pF	-40°C ~ 85°C
CGX70502-13.800-G108	Siward晶振	CGX-70502	13.8 MHz	±50ppm	16pF	-10°C ~ 60°C
CGX70502-14.050-G109	Siward晶振	CGX-70502	14.05 MHz	±50ppm	16pF	-10°C ~ 60°C
CGX70502-14.800-H134	Siward晶振	CGX-70502	14.8 MHz	±50ppm	16pF	-10°C ~ 60°C
CGX70502-15.425-H135	Siward晶振	CGX-70502	15.425 MHz	±50ppm	16pF	-10°C ~ 60°C
CGX70502-15.925-H136	Siward晶振	CGX-70502	15.925 MHz	±50ppm	16pF	-10°C ~ 60°C
CGX70502-16.300-H137	Siward晶振	CGX-70502	16.3 MHz	±50ppm	16pF	-10°C ~ 60°C
XTL581100-J96-011	Siward晶振	SX-2520	16 MHz	±10ppm	8pF	-20 ℃~70 ℃
XTL571200-K114-002	Siward晶振	SX-3225	12 MHz	±10ppm	10pF	-40°C ~ 85°C
XTL571150-F98-063	Siward晶振	SX-3225	24 MHz	±15ppm	18pF	-20 ℃~70 ℃
XTL571100-H201-493	Siward晶振	SX-3225	25 MHz	±10ppm	12pF	-20 ℃~70 ℃
XTL541200-C282-030	Siward晶振	SX-5032	8 MHz	±20ppm	20pF	-40°C ~ 85°C
XTL5A1100-M118-056	Siward晶振	SXT-2520	26 MHz	±10ppm	7pF	-30°C ~ 85°C
XTL5A1100-M118-132	Siward晶振	SXT-2520	26 MHz	±10ppm	7pF	-30°C ~ 105°C
XTL5A1100-S362-009	Siward晶振	SXT-2520	26 MHz	±10ppm	9pF	-30°C ~ 85°C
XTL55S16-S208-018TR4	Siward晶振	SX-4025	16 MHz	±10ppm	9pF	-20 ℃~75 ℃
XTL721-G78-1609	Siward晶振	CSF-3215	32.768 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL741-R53-039	Siward晶振	SF-2012	32 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL741-S999-321	Siward晶振	SF-2012	32.768 kHz	±20ppm	12.5pF	-40°C ~ 85°C
XTL501100-F98-044	Siward晶振	SX-2016	24 MHz	±10ppm	8pF	-20 ℃~75 ℃
XTL501100-S413-007	Siward晶振	SX-2016	32 MHz	±10ppm	9pF	-20 ℃~75 ℃
XTL541200-C282-030	Siward晶振	SX-5032	8 MHz	±20ppm	20pF	-40°C ~ 85°C
XTL571100-C249-064	Siward晶振	SX-3225	37.4 MHz	±10ppm	10pF	-10°C ~ 70°C
XTL571100-F98-020	Siward晶振	SX-3225	12 MHz	±10ppm	10pF	-20 ℃~70 ℃
XTL571100-H201-493	Siward晶振	SX-3225	25 MHz	±10ppm	12pF	-20 ℃~70 ℃
XTL571100-M118-048	Siward晶振	SX-3225	26 MHz	±10ppm	7.3pF	-20 ℃~75 ℃
XTL571100-N98-008	Siward晶振	SX-3225	25 MHz	±10ppm	20pF	-20 ℃~75 ℃
XTL571150-F98-063	Siward晶振	SX-3225	24 MHz	±15ppm	18pF	-20 ℃~75 ℃
XTL571150-G47-219	Siward晶振	SX-3225	25 MHz	±10ppm	18pF	-40°C ~ 85°C
XTL571150-M118-070	Siward晶振	SX-3225	40 MHz	±7ppm	13pF	-40°C ~ 85°C
XTL571200-H201-177	Siward晶振	SX-3225	32 MHz	±10ppm	9pF	-40°C ~ 85°C
XTL571200-V42-001	Siward晶振	SX-3225	12 MHz	±20ppm	20pF	-10°C ~ 70°C
XTL571300-U11-279	Siward晶振	SX-3225	12 MHz	±30ppm	12pF	-40°C ~ 85°C
XTL581100-J96-011	Siward晶振	SX-2520	16 MHz	±10ppm	8pF	-20 ℃~70 ℃
XTL581100-M171-008	Siward晶振	SX-2520	38.4 MHz	±10ppm	10pF	-30°C ~ 85°C
XTL581200-G47-319	Siward晶振	SX-2520	12 MHz	±10ppm	10pF	-40°C ~ 85°C
XTL581150-G47-223	Siward晶振	SX-2520	40 MHz	±10ppm	12pF	-30°C ~ 85°C
XTL501300-A292-004	Siward晶振	SX-2016	16 MHz	±20ppm	9pF	-40°C ~ 85°C