• Manufacturer: Citizen Finedevice Co Ltd
• Series: CM309E
• Type: MHz Crystal
• Size / Dimension: 0.461" L x 0.189" W (11.70mm x 4.80mm)
• Mounting Type: Surface Mount
• Operating Temperature: -10°C ~ 60°C
• Package / Case: 4-SOJ, 9.60mm pitch
• Frequency: 11MHz
• Height - Seated (Max): 0.146" (3.70mm)
• Frequency Stability: ±50ppm
• Frequency Tolerance: ±30ppm
• Operating Mode: Fundamental
• Load Capacitance: 18pF
• ESR (Equivalent Series Resistance): 60 Ohms

• Manufacturer: Abracon LLC
• Series: ABLS
• Type: MHz Crystal
• Size / Dimension: 0.449" L x 0.185" W (11.40mm x 4.70mm)
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: HC-49/US
• Frequency: 11MHz
• Height - Seated (Max): 0.165" (4.20mm)
• Frequency Stability: ±30ppm
• Frequency Tolerance: ±25ppm
• Operating Mode: Fundamental
• Load Capacitance: 18pF
• ESR (Equivalent Series Resistance): 50 Ohms

• Manufacturer: ECS Inc.
• Series: HC-49U
• Type: MHz Crystal
• Size / Dimension: 0.447" L x 0.183" W (11.35mm x 4.65mm)
• Mounting Type: Through Hole
• Operating Temperature: -10°C ~ 70°C
• Package / Case: HC-49/U
• Frequency: 11MHz
• Height - Seated (Max): 0.530" (13.46mm)
• Frequency Stability: ±50ppm
• Frequency Tolerance: ±30ppm
• Operating Mode: Fundamental
• Load Capacitance: Series
• ESR (Equivalent Series Resistance): 30 Ohms

• Manufacturer: ECS Inc.
• Series: CSM-4AX
• Type: MHz Crystal
• Size / Dimension: 0.492" L x 0.191" W (12.50mm x 4.85mm)
• Mounting Type: Surface Mount
• Operating Temperature: -10°C ~ 70°C
• Package / Case: 4-SMD, No Lead
• Frequency: 11MHz
• Height - Seated (Max): 0.197" (5.00mm)
• Frequency Stability: ±50ppm
• Frequency Tolerance: ±30ppm
• Operating Mode: Fundamental
• Load Capacitance: 20pF
• ESR (Equivalent Series Resistance): 60 Ohms