The EFJ part number 131-8701-256 from CINCH CONNECTIVITY SOLUTIONS is a high-performance RF connector designed for applications requiring reliable 75 Ohm impedance. This SMB Jack Assembly features a vertical PCB mount configuration, ideal for compact electronic systems and high-frequency signal transmission.
Impedance: 75 Ohms, suitable for high-frequency applications up to 2 GHz
Vertical PCB mount design for easy integration into electronic assemblies
Gold and nickel plated bodies for enhanced durability and corrosion resistance
Compatible with RG-179, RG-59, Belden 735A cables and adapters
Power rating of 1.0 watt at +25°C, derating to 0.5 watt at +125°C
Durability: Minimum of 500 mating cycles
Temperature range: -65°C to +165°C (connectors and adapters)
Electrical Specifications
Parameter
Specification
Impedance
75 Ohms
Frequency Range
0-2 GHz
VSWR
f = GHz, Straight cabled connectors: 1.25 + 0.04f; Right angle: 1.35 + 0.04f
Working Voltage
335 Vrms at sea level; 85 Vrms at 70K feet
Dielectric Withstanding Voltage
1000 VRMS minimum at sea level
Insertion Loss
Straight cable connectors: 0.30 dB at 1.5 GHz; Right angle: 0.60 dB
Insulation Resistance
≥ 1000 Megohms
Contact Resistance
Maximum specified in detailed datasheet
Mechanical and Environmental Ratings
Engagement Design: MIL-C-39012, Series SMB
Engagement/Disengagement Force: 2 to 14 pounds
Cable Retention Force: 20 N (RG-179, Belden 735A); 40 N (RG-59)
Durability: Minimum 500 mating cycles
Temperature Range: -65°C to +165°C (connectors and adapters)
Environmental Standards: MIL-STD-202, MIL-STD-210 compliance for shock, vibration, corrosion, and thermal shock
Materials
Bodies: Brass, gold or nickel plated
Contacts: Beryllium copper, gold plated
Insulators: PTFE fluorocarbon
Expansion Caps & Crimp Sleeves: Brass and copper, gold or nickel plated
Mounting Hardware: Brass or phosphor bronze, gold or nickel plated
Additional Information
This connector is intermatable with standard 50 Ohm SMB series connectors, ensuring compatibility across RF systems. It features a robust design suitable for demanding environments and high-frequency signal integrity.
For more detailed specifications, please refer to the full datasheet.
Note: Datasheet was not processed, please search the internet for the part number for more details.
{"id":10022219415869,"title":"131-8701-256","handle":"131-8701-256","description":"\u003ch3\u003eSMB Jack Assembly Vertical PCB Mount Mini-75 Ohm\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEFJ\u003c\/strong\u003e part number \u003cstrong\u003e131-8701-256\u003c\/strong\u003e from \u003cstrong\u003eCINCH CONNECTIVITY SOLUTIONS\u003c\/strong\u003e is a high-performance RF connector designed for applications requiring reliable 75 Ohm impedance. This SMB Jack Assembly features a vertical PCB mount configuration, ideal for compact electronic systems and high-frequency signal transmission.\u003c\/p\u003e\n\u003cp\u003eProduct Details:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 131-8701-256\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e CINCH CONNECTIVITY SOLUTIONS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BAG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CNCH\/CNCH-S-A0001287945\/CNCH-S-A0001287762-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eImpedance: 75 Ohms, suitable for high-frequency applications up to 2 GHz\u003c\/li\u003e\n\u003cli\u003eVertical PCB mount design for easy integration into electronic assemblies\u003c\/li\u003e\n\u003cli\u003eGold and nickel plated bodies for enhanced durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with RG-179, RG-59, Belden 735A cables and adapters\u003c\/li\u003e\n\u003cli\u003ePower rating of 1.0 watt at +25°C, derating to 0.5 watt at +125°C\u003c\/li\u003e\n\u003cli\u003eDurability: Minimum of 500 mating cycles\u003c\/li\u003e\n\u003cli\u003eTemperature range: -65°C to +165°C (connectors and adapters)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e75 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e0-2 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVSWR\u003c\/td\u003e\n\u003ctd\u003ef = GHz, Straight cabled connectors: 1.25 + 0.04f; Right angle: 1.35 + 0.04f\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd\u003e335 Vrms at sea level; 85 Vrms at 70K feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Withstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e1000 VRMS minimum at sea level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsertion Loss\u003c\/td\u003e\n\u003ctd\u003eStraight cable connectors: 0.30 dB at 1.5 GHz; Right angle: 0.60 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 1000 Megohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMaximum specified in detailed datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMechanical and Environmental Ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngagement Design: MIL-C-39012, Series SMB\u003c\/li\u003e\n\u003cli\u003eEngagement\/Disengagement Force: 2 to 14 pounds\u003c\/li\u003e\n\u003cli\u003eCable Retention Force: 20 N (RG-179, Belden 735A); 40 N (RG-59)\u003c\/li\u003e\n\u003cli\u003eDurability: Minimum 500 mating cycles\u003c\/li\u003e\n\u003cli\u003eTemperature Range: -65°C to +165°C (connectors and adapters)\u003c\/li\u003e\n\u003cli\u003eEnvironmental Standards: MIL-STD-202, MIL-STD-210 compliance for shock, vibration, corrosion, and thermal shock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMaterials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBodies: Brass, gold or nickel plated\u003c\/li\u003e\n\u003cli\u003eContacts: Beryllium copper, gold plated\u003c\/li\u003e\n\u003cli\u003eInsulators: PTFE fluorocarbon\u003c\/li\u003e\n\u003cli\u003eExpansion Caps \u0026amp; Crimp Sleeves: Brass and copper, gold or nickel plated\u003c\/li\u003e\n\u003cli\u003eMounting Hardware: Brass or phosphor bronze, gold or nickel plated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis connector is intermatable with standard 50 Ohm SMB series connectors, ensuring compatibility across RF systems. It features a robust design suitable for demanding environments and high-frequency signal integrity.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CNCH\/CNCH-S-A0001287945\/CNCH-S-A0001287762-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e","published_at":"2025-08-13T05:27:13+05:30","created_at":"2025-08-13T05:27:13+05:30","vendor":"Waldom Electonics","type":"Connector","tags":["CINCH-CON","Connector","IMPORT_CSV","PCB","SMB","WLDM"],"price":24115,"price_min":24115,"price_max":24115,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50614134079805,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"131-8701-256","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"131-8701-256","public_title":null,"options":["Default Title"],"price":24115,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"131-8701-256","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/131-8701-256_11276595_668d9dcc.jpg?v=1755043036"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/131-8701-256_11276595_668d9dcc.jpg?v=1755043036","options":["Title"],"media":[{"alt":null,"id":45810824806717,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/131-8701-256_11276595_668d9dcc.jpg?v=1755043036"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/131-8701-256_11276595_668d9dcc.jpg?v=1755043036","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eSMB Jack Assembly Vertical PCB Mount Mini-75 Ohm\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eEFJ\u003c\/strong\u003e part number \u003cstrong\u003e131-8701-256\u003c\/strong\u003e from \u003cstrong\u003eCINCH CONNECTIVITY SOLUTIONS\u003c\/strong\u003e is a high-performance RF connector designed for applications requiring reliable 75 Ohm impedance. This SMB Jack Assembly features a vertical PCB mount configuration, ideal for compact electronic systems and high-frequency signal transmission.\u003c\/p\u003e\n\u003cp\u003eProduct Details:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 131-8701-256\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e CINCH CONNECTIVITY SOLUTIONS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BAG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CNCH\/CNCH-S-A0001287945\/CNCH-S-A0001287762-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eImpedance: 75 Ohms, suitable for high-frequency applications up to 2 GHz\u003c\/li\u003e\n\u003cli\u003eVertical PCB mount design for easy integration into electronic assemblies\u003c\/li\u003e\n\u003cli\u003eGold and nickel plated bodies for enhanced durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with RG-179, RG-59, Belden 735A cables and adapters\u003c\/li\u003e\n\u003cli\u003ePower rating of 1.0 watt at +25°C, derating to 0.5 watt at +125°C\u003c\/li\u003e\n\u003cli\u003eDurability: Minimum of 500 mating cycles\u003c\/li\u003e\n\u003cli\u003eTemperature range: -65°C to +165°C (connectors and adapters)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e75 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e0-2 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVSWR\u003c\/td\u003e\n\u003ctd\u003ef = GHz, Straight cabled connectors: 1.25 + 0.04f; Right angle: 1.35 + 0.04f\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd\u003e335 Vrms at sea level; 85 Vrms at 70K feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Withstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e1000 VRMS minimum at sea level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsertion Loss\u003c\/td\u003e\n\u003ctd\u003eStraight cable connectors: 0.30 dB at 1.5 GHz; Right angle: 0.60 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 1000 Megohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMaximum specified in detailed datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMechanical and Environmental Ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngagement Design: MIL-C-39012, Series SMB\u003c\/li\u003e\n\u003cli\u003eEngagement\/Disengagement Force: 2 to 14 pounds\u003c\/li\u003e\n\u003cli\u003eCable Retention Force: 20 N (RG-179, Belden 735A); 40 N (RG-59)\u003c\/li\u003e\n\u003cli\u003eDurability: Minimum 500 mating cycles\u003c\/li\u003e\n\u003cli\u003eTemperature Range: -65°C to +165°C (connectors and adapters)\u003c\/li\u003e\n\u003cli\u003eEnvironmental Standards: MIL-STD-202, MIL-STD-210 compliance for shock, vibration, corrosion, and thermal shock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMaterials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBodies: Brass, gold or nickel plated\u003c\/li\u003e\n\u003cli\u003eContacts: Beryllium copper, gold plated\u003c\/li\u003e\n\u003cli\u003eInsulators: PTFE fluorocarbon\u003c\/li\u003e\n\u003cli\u003eExpansion Caps \u0026amp; Crimp Sleeves: Brass and copper, gold or nickel plated\u003c\/li\u003e\n\u003cli\u003eMounting Hardware: Brass or phosphor bronze, gold or nickel plated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis connector is intermatable with standard 50 Ohm SMB series connectors, ensuring compatibility across RF systems. It features a robust design suitable for demanding environments and high-frequency signal integrity.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CNCH\/CNCH-S-A0001287945\/CNCH-S-A0001287762-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\" rel=\"noopener noreferrer\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e"}
