Precision Quartz Crystal Resonator KYX KMD674582020 with AT Cut Oscillation and 6.7458MHz Frequency
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
Negotiable
Product Description
Product Overview
This document outlines the technical specifications for the KMD674582020 Quartz Crystal Resonator, model M-49USSMD, with a nominal frequency of 6.7458MHz. It details product parameters, reliability testing, and packaging information.
Product Attributes
- Brand: Kaiyuexiang ()
- Origin: Shenzhen, China
- Product Type: Quartz Crystal Resonator
- Model: M-49USSMD
- Original Model: KMD674582020
Technical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Nominal Frequency | 6.7458 | MHz |
| Mode of Oscillation | AT Cut | |
| Frequency Tolerance | ±20 | PPM |
| Temperature Tolerance | ±20 | PPM |
| Operating Temperature Range | -20 to +70 | |
| Storage Temperature | -40 to +85 | |
| Equivalent Resistance | ≤40 | Ω |
| Load Capacitance | 12 | pF |
| Drive Level | 100 | μW |
| Shunt Capacitance | ≤7.0 | pF |
| Insulation Resistance | ≥500 | MΩ at DC 100V±15V |
| Aging | ≤±5 | ppm/year |
| Marking | K6.7458 |
Product Reliability
Electrical Performance
| Test Item | Conditions | Result |
|---|---|---|
| Low-Temperature Resistance | 500 hrs at -40±5, then 1 hr at room temp. | () |
| High-Temperature Resistance | 500 hrs at +100±5, then 1 hr at room temp. | () |
| Salt Mist Test | 48 hrs at 35±2 (5% salt solution), then wash. | () |
| Humidity Test | 500 hrs at 60±2 & 90-98% RH, then 1 hr at room temp. | () |
| Temperature Cycling | 100 cycles (-40±2 for 30 min, +85±2 for 30 min), then 2 hrs at room temp. | () |
Mechanical Performance
| Test Item | Conditions | Result |
|---|---|---|
| Drop Test | 3 drops from 75cm±5cm onto wood board (≥3cm thick), then 1 hr rest. | () |
| Vibration Test | 10-55Hz, 1.5mm amplitude, 2 hrs along X, Y, Z axes, then 1 hr rest. | () |
| Terminal Bending Strength | Fix body, twist 45 degrees, then slowly restore. | () |
| Terminal Strength | On PCB, 0.5mm/s speed, 2mm bend, 5 sec±1 sec pressure. | () |
| Solderability Test | Apply flux (7-10%), then dip in 230±5 solder for 3 sec. | () |
| Hermeticity Test | Immerse in 85±5 water for 5 min (water level approx. 20cm above crystal). | () |
| Solder Heat Resistance | On 265±5 solder bath (2.0±0.2mm from surface) for 3 min (2 times); On 350±10 solder bath (2.0mm±0.2mm from surface) for 3±0.5 sec (2 times), then 2 hrs at room temp. | () |
Judgment Standards
| Result Code | Specification Requirement |
|---|---|
| () | Frequency Change: ±5ppm; Resistance Change: ±20%Ω |
| () | No lead breakage and meets () requirements. |
| () | Tin coverage rate > 90%. |
| () | No bubbles on crystal surface or emerging from water. |
| () | Product appearance is qualified. |
Packaging and Appearance
Packaging: 1 tray per box (3000PCS), 5 boxes per outer carton (15000PCS).
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina