Cable Category → Connector Fit Guide

A practical reference to help you choose connector families that fit your cable — especially when swapping between RG/LMR/Belden equivalents.

Rule of thumb: Cables in the same Category letter generally (but not always) take the same connector mechanical set — the same pin/bushing/ferrule sizes. For example, if you need connectors for Category C cables like LMR-195 or RG-122, you can usually use connector types sold “for RG-58”.

How the categories help

Fast matching: Find your cable’s Category, then choose connectors advertised for any cable in that same Category.
Cross-reference: Categories group common mechanical families across RG/LMR/Belden lines.
Reduced guesswork: Useful when a connector lists RG58, but you’re using LMR195 (both Cat C).

Important caveats

Centre conductor: Solid vs stranded can change pin fit (slit/unslit pins, drill sizes).
Shield build: Single vs double braid or bonded foil can nudge ferrule OD — see B2/B3 sub-categories.
Brand tolerances: Some series use tighter ferrule tolerances — check the connector’s specified crimp sizes.
Semi-rigid: L/L2/L3/L4 use different build methods (formed/soldered). Treat each L-group as its own fit family.

Cable list & categories

Cables of the same Category will generally (but not always) take the same connectors. Always check centre conductor and shield construction.

Cable Type	Impedance (Ω)	Category
RG-178	50	A
RG-196	50	A
LMR-100	50	B
RG-174	50	B
RG-188	50	B
Belden 9221	75	B1
RG-179	70	B1
RG-187	75	B1
RG-188 Double Braided	50	B2
RG-316 Double Braided	50	B2
RG-179 Double Braided	75	B3
Belden 7806A	50	C
Belden 9907	50	C
LMR-195	50	C
RG-122	50	C
RG-303	50	C
RG-58	53.5	C
RG-142	50	C/C1
RG-141	50	C1
RG-223	50	C1
RG-304	50	C1
RG-400	50	C1
RG-55	53.5	C1
Belden 7807A	50	C2
LMR-200	50	C2
Belden 88240	53	D
Belden 89907	50	D
Belden 8241	75	E
Belden 8263	75	E
Belden 8279	75	E
Belden 9209	75	E
RG-140	75	E
RG-210	93	E
RG-59	73	E
RG-62	93	E
Belden 1426A	75	E1
Belden 1505A	75	E1
Belden 8281	75	E1
Belden 9100	75	E1
Belden 1506	75	F1
Belden 82108	75	F1
Belden 9104	75	F1
Belden 1152A	75	G1
Belden 89248	75	G1
Belden 9290	75	G1
Belden 9258	50	G2
LMR-240	50	G2
Belden 9913	50	G3
Belden 9914	50	G3
LMR-400	50	G3
RG-213	50	G4
RG-214	50	G4
RG-225	50	G4
RG-302	75	G4
RG-393	50	G4
RG-8	52	G4
RG-87	50	G4
RG-9	51	G4
AT&T 734A	75	I
AT&T 735A	75	I2
Belden 735A1	75	I2
LMR-600	50	K
Belden 1855A	75	K3
Belden 1865A	75	K3
RG-180	93	K3
RG-195	95	K3
RG-402 (0.141 Semi-Rigid + semi-flex)	50	L
RG-405 (0.086 Semi-Rigid + semi-flex)	50	L2
RG-401 (0.250 Semi-Rigid)	50	L3
0.047 Semi-Rigid	50	L4
Belden 1674	50	L4

Buying checklist

Category match: Choose connectors that list any cable in your Category.
Pin size: Check pin ID vs cable centre conductor (solid/stranded gauge).
Ferrule size: Match ferrule ID to your cable’s braid/foil OD (watch double-braid variants).
Assembly method: Crimp vs solder vs clamp per connector series and your tools.
Semi-rigid: Use L/L2/L3/L4-specific parts and methods.

Popular connector options (all connectors)

Showing 1–12 of 612 resultsSorted by popularity

Which connector fits which cable?

How the categories help

Important caveats

Cable list & categories

Buying checklist

Popular connector options (all connectors)

Category C (RG58 / LMR-195) — all connector types

Category C — by connector family

SMA for RG58 / LMR195

N-Type for RG58 / LMR195

TNC for RG58 / LMR195

Category G2 (LMR-240 / 240-series) — connectors

Category G3 (LMR-400 / 400-series) — connectors

Category C2 (LMR-200 / 200-series) — connectors

Category K (LMR-600 / 600-series) — connectors

FAQs

Do RG58 and LMR-195 use the same connectors?

What if my cable is double braided?

Can I mix semi-rigid cables within a Category?

Which connectors should I stock for Category C?

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