Here just list out part of catalogs as follows for reference. Customized products are available, please consult with Kete.

Part Number	Notch Frequency	Insertion Loss  Max.	VSWR Max.	Attenuation Min.	Pass Band 1	Pass Band 2
KTF-430-BS	400-460MHz	2.00dB	2 : 1	60dB	DC-390MHz	480-1500MHz
KTF-725-BS	703-748MHz	2.00dB	2 : 1	60dB	DC-688MHz	763-1800MHz
KTF-753-BS	703-803MHz	2.00dB	2 : 1	45dB	DC-693MHz	813-2000MHz
KTF-751-BS	746-756MHz	2.00dB	2 : 1	40dB	DC-731MHz	771-2000MHz
KTF-680-BS	663-698MHz	2.00dB	2 : 1	50dB	DC-651MHz	710-2000MHz
KTF-707-BS	699-716MHz	2.00dB	2 : 1	40dB	DC-684MHz	729-2000MHz
KTF-780-BS	758-803MHz	2.00dB	2 : 1	40dB	DC-743MHz	818-1800MHz
KTF-782-BS	777-787MHz	2.00dB	2 : 1	45dB	DC-762MHz	802-2000MHz
KTF-831-BS	814-849MHz	1.50dB	2 : 1	45dB	DC-799MHz	864-2000MHz
KTF-836-BS	824-849MHz	2.00dB	2 : 1	40dB	DC-804MHz	869-1800MHz
KTF-847-BS	832-862MHz	2.00dB	2 : 1	40dB	DC-821MHz	897-1800MHz
KTF-881-BS	869-894MHz	1.50dB	2 : 1	40dB	DC-854MHz	909-2000MHz
KTF-898-BS	880-915MHz	1.50dB	2 : 1	40dB	DC-860MHz	935-2000MHz
KTF-915-BS	902-928MHz	2.00dB	2 : 1	45dB	DC-896MHz	934-2500MHz
KTF-940-BS	921-960MHz	2.00dB	2 : 1	40dB	DC-911MHz	970-1800MHz
KTF-948-BS	935-960MHz	2.00dB	2 : 1	40dB	DC-925MHz	970-1600MHz
KTF-1500-BS	1400-1600MHz	2.00dB	2 : 1	60dB	DC-1340MHz	1660-5000MHz
KTF-1474-BS	1452-1496MHz	2.00dB	2 : 1	40dB	DC-1437MHz	1511-3500MHz
KTF-1702-BS	1695-1710MHz	2.50dB	2 : 1	80dB	DC-1685MHz	1720-5000MHz
KTF-1745-BS	1710-1780MHz	2.00dB	2 : 1	40dB	DC-1695MHz	1795-3000MHz
KTF-1900-BS	1800-2000MHz	2.00dB	2 : 1	40dB	DC-1750MHz	2050-3000MHz
KTF-1842-BS	1805-1880MHz	2.00dB	2 : 1	60dB	DC-1785Hz	1900-6000MHz
KTF-1882-BS	1850-1915MHz	2.00dB	2 : 1	45dB	DC-1835MHz	1930-4200MHz
KTF-1900M-BS	1880-1920MHz	2.00dB	2 : 1	40dB	DC-1865MHz	1935-3000MHz
KTF-1950-BS	1920-1980MHz	2.00dB	2 : 1	40dB	DC-1900MHz	2010-3000MHz
KTF-1960-BS	1930-1990MHz	2.00dB	2 : 1	40dB	DC-1915MHz	2005-5000MHz
KTF-2132-BS	2110-2155MHz	1.80dB	2 : 1	40dB	DC-2095MHz	2170-4200MHz
KTF-2140-BS	2110-2170MHz	2.00dB	2 : 1	60dB	DC-2090MHz	2190-6000MHz
KTF-2155-BS	2110-2200MHz	2.00dB	2 : 1	40dB	DC-2095MHz	2215-4200MHz
KTF-2400-BS	2200-2600MHz	2.50dB	2 : 1	50dB	DC-2150MHz	2650-8000MHz
KTF-2350-BS	2300-2400MHz	2.50dB	2 : 1	60dB	DC-2285MHz	2415-3000MHz
KTF-2350M-BS	2300-2400MHz	2.00dB	2 : 1	80dB	DC-2273MHz	2427-6000MHz
KTF-2442-BS	2400-2485MHz	2.00dB	1.5 : 1	40dB	DC-2375MHz	2510-5500MHz
KTF-2450-BS	2400-2500MHz	2.00dB	2 : 1	50dB	DC-2170MHz	3000-18000MHz
KTF-2535-BS	2500-2570MHz	3.00dB	2 : 1	40dB	DC-2485MHz	2585-4000MHz
KTF-2595-BS	2570-2620MHz	3.00dB	2 : 1	40dB	DC-2555MHz	2635-4000MHz
KTF-2655-BS	2620-2690MHz	2.00dB	2 : 1	40dB	DC-2605MHz	2705-4200MHz
KTF-3550-BS	3300-3800MHz	3.00dB	2 : 1	40dB	DC-3270MHz	3830-8000MHz
KTF-3575-BS	3300-3850MHz	3.00dB	2 : 1	40dB	DC-3270MHz	3880-8000MHz
KTF-3575M-BS	3300-3850MHz	2.00dB	2 : 1	70dB	DC-3200MHz	4300-6500MHz
KTF-3500-BS	3400-3600MHz	2.00dB	2 : 1	45dB	DC-3370MHz	3630-8000MHz
KTF-3625-BS	3550-3700MHz	3.00dB	2 : 1	80dB	DC-3520MHz	3730-8000MHz
KTF-3700-BS	3600-3800MHz	2.00dB	2 : 1	45dB	DC-3570MHz	3830-8000MHz
KTF-4025-BS	3850-4200MHz	3.00dB	2 : 1	40dB	DC-3820MHz	4230-8000MHz
KTF-4700-BS	4400-5000MHz	3.00dB	2 : 1	40dB	DC-4370MHz	5030-8000MHz
KTF-4700M-BS	4400-5000MHz	3.00dB	2.5 : 1	80dB	DC-4340MHz	5060-8000MHz
KTF-5200-BS	5150-5250MHz	3.00dB	2 : 1	80dB	DC-5125MHz	5275-8000MHz
KTF-5500-BS	5150-5850MHz	3.00dB	2 : 1	50dB	DC-5000MHz	6000-18000MHz
KTF-5537-BS	5150-5925MHz	2.00dB	2 : 1	50dB	DC-5000MHz	6125-8000MHz
KTF-5300-BS	5250-5350MHz	3.00dB	2 : 1	80dB	DC-5225MHz	5375-8000MHz
KTF-5650-BS	5400-5900MHz	2.00dB	2 : 1	40dB	DC-5100MHz	6200-12000MHz
KTF-5597-BS	5470-5725MHz	3.00dB	2 : 1	80dB	DC-5420MHz	5775-8000MHz
KTF-5787-BS	5725-5850MHz	3.00dB	2 : 1	80dB	DC-5695MHz	5880-8000MHz
KTF-6175-BS	5925-6425MHz	3.00dB	2 : 1	40dB	DC-5875MHz	6475-18000MHz
KTF-6475-BS	6425-6525MHz	3.00dB	2 : 1	40dB	DC-6375MHz	6575-18000MHz
KTF-6700-BS	6525-6875MHz	3.00dB	2 : 1	40dB	DC-6475MHz	6925-18000MHz
KTF-7000-BS	6875-7125MHz	3.00dB	2 : 1	40dB	DC-6825MHz	7175-18000MHz
KTF-24125-BS	24000-24250MHz	3.00dB	2 : 1	40dB	DC-23000MHz	25250-40000MHz
KTF-25875-BS	24250-27500MHz	3.00dB	2 : 1	40dB	DC-22750MHz	29000-50000MHz
KTF-28000-BS	26500-29500MHz	3.00dB	2 : 1	40dB	DC-25000MHz	31000-50000MHz
KTF-27925-BS	27500-28350MHz	3.00dB	2 : 1	40dB	DC-26300MHz	29550-50000MHz
KTF-38500-BS	37000-40000MHz	3.00dB	2 : 1	40dB	DC-35500MHz	41500-50000MHz
KTF-41500-BS	39500-43500MHz	3.00dB	2 : 1	40dB	DC-38000MHz	45000-50000MHz

Notch filter known also as a band stop filter or band stop filter, blocks and rejects frequencies that lie between its two cut-off frequency points passes all those frequencies either side of this range. It is another type of frequency selective circuit that functions in exactly the opposite way to the Band Pass Filter we looked at before. Band-stop filter can be represented as a combination of low-pass and high-pass filters if the bandwidth is wide enough that the two filters do not interact too much.

Typical Applications of the Notch Filter & Band Stop  
• Satellite Systems
• 5G Test & Instrumentation& EMC
• Telecom Infrastructures
• Microwave Links