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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:
27MHz
Mfr. Part #:
KMD270002020
Package:
HC-49S-SMD-Mini
Key Attributes
Model Number:
KMD270002020
Product Description
Product Overview
This specification sheet details the Quartz Crystal Resonator, model M-49USSMD /27.000MHz, manufactured by Shenzhen Kaiyuexiang Electronics Co., Ltd. It is designed for applications requiring precise frequency control.
Product Attributes
- Brand: Kaiyuexiang (KYX)
- Origin: Shenzhen, China
- Customer Confirmation: Signature and Date fields provided.
- Certification Seal: Field provided.
- Manufacturer: Shenzhen Kaiyuexiang Electronics Co., Ltd.
Technical Specifications
| Product Name | Product Model | Nominal Frequency | Frequency Tolerance | Temperature Tolerance | Operating Temperature | Storage Temperature | Load Capacitance | Drive Level | Shunt Capacitance | Insulation Resistance | Aging | Equivalency Resistance | Mode of Oscillation | Hold Type | Marking |
| Quartz Crystal Resonator | M-49USSMD /27.000MHz | 27.000 MHz | 20PPM | 20PPM | -20+70 | -40+85 | 20 pF | 100W | 3.0 pF | 500M at DC 100V15V | 3ppm/year | 40 | AT CUT | SMD | KYX XX (Nominal Frequency) |
Product Reliability
Electrical Performance
- Low Temperature Resistance: 500 hours 2 hours at -405, followed by 1 hour natural cooling.
- High Temperature Resistance: 500 hours 2 hours at +1005, followed by 1 hour natural cooling.
- Salt Spray Test: 48 hours 2 hours at 352 with 5% salt solution, followed by cleaning.
- Humidity Test: 500 hours 2 hours at 602 and 90-98% relative humidity, followed by 1 hour natural cooling.
- Temperature Cycling: 100 cycles of 30 minutes 1 minute at -402 and 30 minutes 1 minute at +852, followed by 2 hours natural cooling.
Mechanical Performance
- Drop Test: 3 drops from 75cm5cm onto a wooden board (3cm thick), tested after 1 hour.
- Vibration Test: 2 hours vibration along X, Y, Z axes at 10-55Hz with 1.5mm amplitude, tested after 1 hour.
- Terminal Bending Strength Test: Body fixed, terminal twisted 45 degrees and slowly restored.
- Terminal Strength Test: Applied to mounted substrate, 0.5mm/s speed, 2mm bending, held for 5 seconds 1 second.
- Soldering Wettability Test: Terminals dipped in flux (7-10% concentration) for approx. 5 seconds, then immersed in a 2305 molten tin bath for 3 seconds.
- Hermeticity Test: Immersed in 855 warm water for 5 minutes, water level approx. 20cm above the crystal.
- Soldering Heat Resistance: 3 minutes (2 times) in a 2655 tin bath with crystal 2.00.2mm above the tin surface; 30.5 seconds (2 times) in a 35010 tin bath with crystal 2.00.2mm above the tin surface, followed by 2 hours natural cooling.
Judgment Standards
- () Frequency change: 5ppm; Resistance change: 20%
- () No lead breakage and meets () requirements.
- () Tin coverage rate >90%.
- () No bubbles precipitating on the crystal surface or emerging from the water.
- () Product appearance is qualified.
Packaging
- 1 reel per box (3000 PCS)
- 10 boxes per outer carton (30000 PCS)
- Labeling: Nominal Frequency (KYX XX)
Factory Address: 4th Floor, Building 1, Caifa Industrial City, Guanlan Renmin Road, Longhua District, Shenzhen
TEL: 0755-89315823, 89315866
FAX: 0755-89315223
Website: www.kaiyuexiang.com
2310121803_KYX-KMD270002020_C18213405.pdf
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