Beijing Silk Road Enterprise Management Services Co., Ltd.
| Normal temperature Frequency Tolerance | ±30ppm |
| Frequency Stability | ±20ppm |
| Operating Temperature | -20℃~+70℃ |
| Load Capacitance | 20pF |
| Equivalent Series Resistance(ESR) | 250Ω |
| Frequency | 6.7458MHz |
| Description | Crystal 6.7458MHz ±30ppm 20pF 250Ω HC-49S-SMD |
| Mfr. Part # | KST674582030 |
| Package | HC-49S-SMD |
| Model Number | KST674582030 |
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Product Specification
| Normal temperature Frequency Tolerance | ±30ppm | Frequency Stability | ±20ppm |
| Operating Temperature | -20℃~+70℃ | Load Capacitance | 20pF |
| Equivalent Series Resistance(ESR) | 250Ω | Frequency | 6.7458MHz |
| Description | Crystal 6.7458MHz ±30ppm 20pF 250Ω HC-49S-SMD | Mfr. Part # | KST674582030 |
| Package | HC-49S-SMD | Model Number | KST674582030 |
This document details the specifications for the Kaiyuexiang Quartz Crystal Resonator, model 49USSSMD/6.7458MHZ. It is designed for applications requiring precise frequency control with specific electrical and mechanical parameters.
| Parameter | Value | Unit | Notes |
| 1. GENERAL | |||
| HOLDER TYPE | 49USSSMD | ||
| MODE OF VIBRATION | AT CUT | FUND S&A KH-1240 | |
| OSCILLATION MODE | FUNDAMENTAL | ||
| TEST FACILITIES | |||
| STORAGE TEMPERATURE | -40 to +85 | ||
| DRIVER LEVEL | 100 | W | |
| 2. ELECTRICAL PARAMETER | |||
| NORMAL FREQUENCY | 6.7458 | MHz | |
| FREQUENCY TOLERANCE (252) | 30 | ppm | |
| TEMPERATURE STABILITY | 20 | ppm | |
| OPERATING TEMPERATURE RANGE | -20 to +70 | ||
| LOAD CAPACITANCE | 20 | PF | |
| MOTIONAL CAPACITANCE | 7 | PF | MAX |
| SHUNT CAPACITANCE | |||
| EFFECTIVE SERIES RESISTANCE | 250 | MAX | |
| INSULATION RESISTANCE | 500 | M OHMS | MIN AT DC 100V |
| 3. MECHANICAL PARAMETER | |||
| SOLDERABILITY | 95% COVERAGE BY USING 90/10 SOLD AT 245 FOR 5 SEC. DIPING AFTER IMMERSION IN ALPHA 611 FLUX FOR 5 SEC. | ||
| MECHANICAL ENDURANCE | |||
| SHOCK | Electrical characteristics shall be satisfied after dropping three time from the height of 50 cm onto Hard wooden board. | ||
| VIBRATION | Electrical characteristics shall be satisfied after supplying following Vibration. | ||
| VIBRATION FREQUENCY | 1055 | Hz | (1) |
| REPEATED PERIOD | 12 | min | (2) |
| FULL CYCLE | 1.5 | mm PP | (3) |
| DIRECTION | X.Y.Z | (4) | |
| TIME | 2 | hours/each direction | (5) |
| STRENGTH OF TERMINALS/LEADWIRES | |||
| PULLING | a)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. b)After above test a), there is no observation of any visual damages on the specimen. | -1 | |
| BENDING | a)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. b)After above test a), there is no observation of any visual damages on the specimen. | -2 | |
| SEALING TIGHTNESS | There is no observation of gas bubble after specimen put in hot water at +90+95 for 5 min. | 4 | |
| SOLDERING DIP | 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. | 5 | |
| SOLDER HEATING | 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. | 6 | |
| ENVIRONMENTAL ENDURANCE | |||
| HUMIDITY | Electrical characteristics shall be satisfied after letting it alone at 602 in humidity of 9095% for 250 hours. | 1 | |
| STORAGE IN LOW TEMPERATURE | Electrical characteristics shall be satisfied after letting it alone at -302 for 250 hours. | 2 | |
| STORAGE IN HIGH TEMPERATURE | Electrical characteristics shall be satisfied after letting it alone at +852 for 250 hours. | 3 | |
| TEMPERATURE CYCLE | Electrical characteristics shall be satisfied after supplying the following temperature cycle (3cycles). Temperature shift from low to high, high to low shall be done in 1/min. | 4 | |
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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