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Connector Choices

Finding cheap connectors and then remembering them is a common design task.  This table indexes several common connector types for 2x1 and 2x2, by digikey part number, and gives pricing in quantity 100  for a comparison.  It's easy to see that surface mount (SMT) parts are typically over twice as expensive.

For break away headers, it is assumed that the full connector is purchased and then divided, which is more cost effective than purchasing precut for smaller quantitities. 

Rectangular 2mm Grid
Description Part Number Price ($)
QTY1		 Manufacturer
4x1, Female, TH, Vert S5751-04-ND 0.69 Sullins
4x1, Female, TH, RA S2104-04-ND 0.84 Sullins
4x1, Female, SMT, Vert S2101-04-ND 0.70 Sullins
2x2, Female, TH,Vert S2200-02-ND 1.32 Sullins
2x3, Female, SMT,Vert S2202-03-ND 0.98 Sullins
2x1, Male, TH, Vert S5800-02-ND 0.39 Sullins
2x1, Male, TH, RA S5802-40-ND 0.17 Sullins
2x2, Male, TH, Vert S2210-02-ND 0.11 Sullins
2x2, Male, SMT, Vert S2209-02-ND 0.60 Sullins

Rectangular .1" Grid
Description Part Number Price ($)
QTY1		 Manufacturer
2x1, Female, TH, Vert S4002-ND 0.21 Sullins
2x1, Female, TH,  RA S4337-ND 0.26 Sullins
2x1, Female, SMT, Vert S4493-ND 0.45 Sullins
2x2, Female, TH, Vert S4202-ND 0.42 Sullins
2x2, Female, TH, RA S5516-ND 0.51 Sullins
2x2, Female, SMT, RA S4571-ND 0.91 Sullins
2x1, Male, TH, Vert S1012E-36-ND 0.016 Sullins
2x1, Male, TH, Vert WM4000-ND 0.280 Molex
2x1, Male, TH, RA S1112-36-ND 0.084 Sullins
2x1, Male, SMT, Vert S1013-36-ND 0.2472 Sullins
2x1, Male, SMT, Vert S1133E-36-ND 0.21 Sullins
2x1, Male, SMT, RA S2331-36-ND 0.2379 Sullins
2x2, Male, TH, Vert WM26904-ND 0.49 Molex
2x2, Male, TH, Vert S2012-36-ND 0.1027 Sullins
2x2, Male, TH, RA S2112-36-ND 0.155 Sullins
2x2, Male, SMT, Vert S2331-36-ND 0.2661 Sullins

D-Sub
Description Part Number Price ($)
QTY1		 Manufacturer
15 - CONN  MALE .318" R/A NICKEL 182-15ME-ND 1.28000 Norcomp
15- CONN FEMALE VERT  609-1497-ND 2.89000 FCI
25 - CONN D-SUB RCPT R/A  PCB AU A23313-ND 3.50000 AMP

Friction Lock Header
2x1, Male, TH, Vert, WM4200-ND .24 Molex

MTA Connector
MTA100, 2x1, Female, TH, 22 AWG A31080-ND .18 Tyco

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