Product Overview
This document specifies the Quartz Crystal Resonator, model HC-49USSMD/6.7458 MHZ, manufactured by Shenzhen Kaiyuexiang Electronics Co., Ltd. It is designed for applications requiring precise frequency control with specific electrical and mechanical parameters.
Product Attributes
- Brand: Kaiyuexiang
- Origin: Shenzhen, China
- Product Name: Quartz Crystal Resonator
- Product Model: HC-49USSMD/6.7458 MHZ
- Original Model: KSD674582030
Technical Specifications
| Parameter | Value | Unit | Notes |
| Holder Type | HC-49USSMD | ||
| Mode of Vibration | AT CUT | FUND | |
| Oscillation Mode | S&A | KH-1240 | |
| Storage Temperature | -40 to +85 | ||
| Driver Level | 100 | W | |
| 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 | 5 | PF | MAX |
| Shunt Capacitance | |||
| Effective Series Resistance | 250 | MAX | |
| Insulation Resistance | 500 | M OHMS MIN | AT DC 100V |
| Solderability | 95% COVERAGE BY USING 90/10 SOLD AT 245 FOR 5 SEC. DIPING AFTER IMMERSION IN ALPHA 611 FLUX FOR 5 SEC. | ||
| Shock Resistance | Electrical characteristics shall be satisfied after dropping three times from the height of 50 cm onto Hard wooden board. | ||
| Vibration Resistance | Frequency: 1055Hz, Period: 12min, Amplitude: 1.5mm PP, Direction: X.Y.Z, Time: 2hours/each direction | Electrical characteristics shall be satisfied. | |
| Strength of Terminals/Lead-Wires (Pulling) | 900g tension weight for 30 sec. | No visual damages. | |
| Strength of Terminals/Lead-Wires (Bending) | 90 degree bending with 225g tension weight. | No visual damages. | |
| Sealing Tightness | No observation of gas bubble after specimen put in hot water at +90+95 for 5 min. | ||
| Soldering Dip | Dipped into solder melted tank at +2305 for 3sec. Dipping depth 2mm from the bottom of specimens body. | Soldering portion shall be covered in over 90% of terminals/lead-wires dipped. | |
| Solder Heating Resistance | Dipped into solder melted tank at +35010 for 3 sec. | Electrical characteristics shall be satisfied. Dipping depth 2mm from edge of terminals/lead-wires. | |
| Humidity Resistance | Electrical characteristics shall be satisfied after 250 hours at 602 in 90-95% humidity. | ||
| Low Temperature Storage | Electrical characteristics shall be satisfied after 250 hours at -302. | ||
| High Temperature Storage | Electrical characteristics shall be satisfied after 250 hours at +852. | ||
| Temperature Cycle | Electrical characteristics shall be satisfied after 3 cycles. Temperature shift 1/min. |
2409272303_KYX-KSD674582030_C18213270.pdf
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