Beijing Silk Road Enterprise Management Services Co., Ltd.
| Normal temperature Frequency Tolerance | ±20ppm |
| Frequency Stability | ±20ppm |
| Operating Temperature | -20℃~+70℃ |
| Load Capacitance | 20pF |
| Equivalent Series Resistance(ESR) | 250Ω |
| Frequency | 6.7458MHz |
| Description | Crystal 6.7458MHz ±20ppm 20pF 250Ω HC-49S |
| Mfr. Part # | KUS0674582020 |
| Package | HC-49S |
| Model Number | KUS0674582020 |
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Product Specification
| Normal temperature Frequency Tolerance | ±20ppm | Frequency Stability | ±20ppm |
| Operating Temperature | -20℃~+70℃ | Load Capacitance | 20pF |
| Equivalent Series Resistance(ESR) | 250Ω | Frequency | 6.7458MHz |
| Description | Crystal 6.7458MHz ±20ppm 20pF 250Ω HC-49S | Mfr. Part # | KUS0674582020 |
| Package | HC-49S | Model Number | KUS0674582020 |
The Kaiyuexiang Quartz Crystal Resonator, model 49US/6.7458MHZ, is a high-precision electronic component designed for stable oscillation. It features a frequency tolerance of 20ppm and a load capacitance of 20PF, making it suitable for various electronic applications requiring reliable frequency generation.
| Parameter | Specification |
| Product Name | Quartz Crystal Resonator |
| Product Model | 49US/6.7458MHZ |
| Original Factory Model | KUS0674582020 |
| Holder Type | 49US |
| Mode Vibration | AT CUT |
| Oscillation Mode | FUNDAMENTAL |
| Test Facilities | S&A KH-1240 |
| Storage Temperature | -40 TO +85 |
| Driver Level | 100W |
| Normal Frequency | 6.7458MHz |
| Frequency Tolerance (252) | 20ppm |
| Temperature Stability | 20ppm |
| Operating Temperature Range | -20 TO +70 |
| Load Capacitance | 20PF |
| Motional Capacitance | 7PF MAX |
| Shunt Capacitance | 80MAX |
| Effective Series Resistance | 500M OHMS MIN AT DC 100V |
| Insulation Resistance | 95% COVERAGE BY USING 90/10 SOLD AT 245 FOR 5 SEC. DIPING AFTER IMMERSION IN ALPHA 611 FLUX FOR 5 SEC. |
| Shock Test | Electrical characteristics shall be satisfied after dropping three times from the height of 50 cm onto Hard wooden board. |
| Vibration Test Frequency | 1055Hz |
| Vibration Test Period | 12min |
| Vibration Test Full Amplitude | 1.5mm PP |
| Vibration Test Direction | X.Y.Z |
| Vibration Test Time | 2 hours/each direction |
| Strength of Terminals/Lead-wires - Pulling Test | Body of specimen shall be fixed, and 900g of tension weight shall be supplied gradually to axial direction of terminals/lead-wires for 30 sec. After above test, there is no observation of any visual damages on the specimen. |
| Strength of Terminals/Lead-wires - Bending Test | Body of specimen shall be fixed, and 90degree bending shall be given, being supplied 225gs tension weight. After that, terminals/lead-wires shall be straightened gradually. Then the same bending and straightening shall be supplied to the opposite direction in the same axial. After above test, there is no observation of any visual damages on the specimen. |
| Sealing Tightness Test | There is no observation of gas bubble after specimen put in hot water at +90+95 for 5 min. |
| Soldering Dip Test | Terminals/lead-wires of specimen shall be dipped into solder melted tank at +2305 for 3sec. Dipping depth shall be 2mm from the bottom of specimens body. (After applying ROSIN flux) Soldering portion shall be covered in over 90% of terminals/lead-wires dipped. |
| Solder Heating Test | Terminals/lead-wires of specimen shall be dipped into solder melted tank at +35010 for 3 sec. Electrical characteristics shall be satisfied after dipping depth shall be 2mm from edge of terminals/lead-wires. |
| Humidity Test | Electrical characteristics shall be satisfied after letting it alone at 602 in humidity of 9095% for 250 hours. |
| Low Temperature Storage Test | Electrical characteristics shall be satisfied after letting it alone at -302 for 250 hours. |
| High Temperature Storage Test | Electrical characteristics shall be satisfied after letting it alone at +852 for 250 hours. |
| Temperature Cycle Test | Electrical characteristics shall be satisfied after supplying the following temperature cycle (3 cycles). Temperature shift from low to high, high to low shall be done in 1/min. |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an... Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
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