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 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