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                 Mini Size Single-Mode Fused Type Fiber Coupler  | 
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                 Features  | 
            
                 Applications  | 
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                 Low Insertion Loss  | 
            
                 Optical Communication System  | 
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                 Low Polarization Dependent Loss  | 
            
                 CATV  | 
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                 High stability & Reliability  | 
            
                 FTTX/PON  | 
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                 Specifications  | 
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                 Parameter  | 
            
                 Unit  | 
            
                 Value  | 
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                 Grade  | 
            
                 Grade P  | 
            
                 Grade A  | 
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                 Operating Wavelength  | 
            
                 nm  | 
            
                 1310 or 1550  | 
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                 Operating Bandwidth  | 
            
                 nm  | 
            
                 ±15  | 
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                 Max. Insertion Loss  | 
            
                 50/50  | 
            
                 dB  | 
            
                 3.5/3.5  | 
            
                 3.7/3.7  | 
        
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                 40/60  | 
            
                 dB  | 
            
                 4.5/2.7  | 
            
                 4.8/2.9  | 
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                 30/70  | 
            
                 dB  | 
            
                 5.8/2.0  | 
            
                 6.1/2.1  | 
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| 
                 20/80  | 
            
                 dB  | 
            
                 7.7/1.30  | 
            
                 8.0/1.35  | 
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| 
                 10/90  | 
            
                 dB  | 
            
                 11.2/0.70  | 
            
                 11.8/0.85  | 
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| 
                 5/95  | 
            
                 dB  | 
            
                 14.5/0.45  | 
            
                 15.0/0.55  | 
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| 
                 2/98  | 
            
                 dB  | 
            
                 18.5/0.30  | 
            
                 19.2/0.35  | 
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| 
                 1/99  | 
            
                 dB  | 
            
                 21.5/0.25  | 
            
                 22/0.3  | 
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| 
                 Max. Excess Loss  | 
            
                 dB  | 
            
                 0.1  | 
            
                 0.2  | 
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                 Max. Polarization Dependent Loss  | 
            
                 dB  | 
            
                 0.1  | 
            
                 0.15  | 
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                 Min. Directivity  | 
            
                 dB  | 
            
                 50  | 
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                 Max. Return Loss  | 
            
                 dB  | 
            
                 50  | 
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                 Max. Optical Power(CW)  | 
            
                 W  | 
            
                 2  | 
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                 Package Dimension  | 
            
                 mm  | 
            
                 Φ2.4*25(bare fiber), φ3*30(bare fiber,0.9mm loose tube),  | 
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                 Operating Temperature  | 
            
                 ℃  | 
            
                 -40~+85  | 
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                 Storage Temperature  | 
            
                 ℃  | 
            
                 -40~+85  | 
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                 For device with connector, IL is 0.3dB higher, RL is 5dB lower.  | 
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                 Ordering Information  | 
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                 MNFUC-1111-233-444-567-8888  | 
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                 1111  | 
            
                 -Wavelength:  | 
            
                 1310=1310nm, 1550=1550nm, 1315=1310nm & 1550nm  | 
        
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                 2  | 
            
                 -Port Type:  | 
            
                 2=1x2  | 
        
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                 33  | 
            
                 -Tap Ratio:  | 
            
                 01=01%/99%  | 
        
| 
                 444  | 
            
                 -Fiber type:  | 
            
                 001=PM1550, 002=PM1310, 003=PM980, 004=Hi1060, 008=SMF-28E  | 
        
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                 5  | 
            
                 -Package Dimension:  | 
            
                 0=φ2.5x24mm, 1=φ3.0x30mm,  | 
        
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                 6  | 
            
                 -Pigtail type:  | 
            
                 0=250 bare fiber, 1=900um loose tube  | 
        
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                 7  | 
            
                 -Fiber length:  | 
            
                 0=0.8m,1=1m  | 
        
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                 8888  | 
            
                 -Connector type:  | 
            
                 0=FC/UPC,1=FC/APC,2=SC/UPC,3=SC/APC,4=LC/UPC,5=LC/APC  |