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Specifications
Normal temperature Frequency Tolerance:
±20ppm
Frequency Stability:
±20ppm
Operating Temperature:
-20℃~+70℃
Load Capacitance:
20pF
Equivalent Series Resistance(ESR):
40Ω
Frequency:
21.47727MHz
Mfr. Part #:
KBD21477272020
Package:
HC-49S-SMD
Key Attributes
Model Number:
KBD21477272020
Product Description
Product Overview
This datasheet specifies the 49USSMD/21.47727MHZ Quartz Crystal Resonator from Shenzhen Kaiyuexiang Industrial Co., Ltd. It is designed for various electronic applications requiring precise frequency control.
Product Attributes
- Brand: Kaiyuexiang ()
- Origin: Shenzhen, China
- Product Name: Quartz Crystal Resonator ()
- Product Model: 49USSMD/21.47727MHZ
- Original Manufacturer Model: KBD21477272020
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| General | ||
| Holder Type | 49USSMD | |
| Mode of Vibration | AT CUT | |
| Oscillation Mode | FUND S&A KH-1240 | |
| Storage Temperature | -40 TO +85 | |
| Driver Level | 100W | |
| Electrical Parameter | ||
| Normal Frequency | 21.47727MHz | |
| Frequency Tolerance (252) | 20ppm | |
| Temperature Stability | 20ppm | |
| Operating Temperature Range | -20 TO +70 | |
| Load Capacitance | 20PF | |
| Motional Capacitance | 7PF MAX | |
| Shunt Capacitance | ||
| Effective Series Resistance | 40 MAX | |
| Insulation Resistance | 500M OHMS MIN AT DC 100V | |
| Mechanical Parameter | ||
| Solderability | 95% COVERAGE BY USING 90/10 SOLD AT 245FOR 5 SEC. DIPING AFTER IMMERSION IN ALPHA 611 FLUX FOR 5 SEC. | |
| Mechanical Endurance | ||
| Shock Resistance | Satisfied after dropping from 50 cm onto hard wooden board 3 times. | Electrical characteristics shall be satisfied. |
| Vibration Resistance | Frequency: 1055Hz, Period: 12min, Amplitude: 1.5mm PP, Direction: X.Y.Z, Time: 2 hours/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 bending with 225g tension weight, then straightened. Repeated in opposite direction. | No visual damages. |
| Sealing Tightness | No gas bubble after immersion in hot water at +90+95 for 5 min. | |
| Soldering Dip | Dipped into solder at +2305 for 3 sec (2mm from body bottom), with ROSIN flux. | Over 90% coverage on terminals/lead-wires. |
| Solder Heating Resistance | Dipped into solder at +35010 for 3 sec (2mm from edge). | Electrical characteristics shall be satisfied. |
| Environmental Endurance | ||
| Humidity Resistance | 250 hours at 602 and 90-95% relative humidity. | Electrical characteristics shall be satisfied. |
| Storage in Low Temperature | 250 hours at -302. | Electrical characteristics shall be satisfied. |
| Storage in High Temperature | 250 hours at +852. | Electrical characteristics shall be satisfied. |
| Temperature Cycle | 3 cycles, temperature shift at 1/min. | Electrical characteristics shall be satisfied. |
Contact Information:
Factory Address: 4th Floor, Building 1, Caifa Industrial City, Renmin Road, Guanlan, Bao'an District, Shenzhen
TEL: 0755-89315823, 89315866
FAX: 0755-89315223
Website: www.kaiyuexiang.com
2409272303_KYX-KBD21477272020_C2835971.pdf
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