20 Headers, Male Pins

Results: 24,705
Manufacturer
3MAdafruit Industries LLCAdam TechAmphenol Aerospace OperationsAmphenol CONECAmphenol ICC (Commercial Products)Amphenol ICC (FCI)Amphenol SocapexAssmann WSW ComponentsCinch Connectivity SolutionsCNC TechCvilux USA
Series
-*1011482813065B13103B151215521592163216423002500
Packaging
-BagBoxBulkCut Tape (CT)Digi-Reel®StripTape & Box (TB)Tape & Reel (TR)TrayTube
Product Status
ActiveDiscontinued at Digi-KeyLast Time BuyObsolete
Connector Type
-HeaderHeader, Bottom EntryHeader, BreakawayHeader, CuttableHeader, ElevatedHeader, Reverse PinPlugReceptacleReceptacle, Reverse Pin
Contact Type
-Center Strip ContactFemale SocketMale BladeMale PinNon-GenderedOuter Shroud ContactTab
Pitch - Mating
0.024" (0.60mm)0.025" (0.64mm)0.031" (0.80mm)0.039" (1.00mm)0.047" (1.20mm)0.049" (1.25mm)0.050" (1.27mm)0.059" (1.50mm)0.070" (1.78mm)0.071" (1.80mm)0.075" (1.91mm)0.079" (2.00mm)
Number of Rows
1234520-
Row Spacing - Mating
0.030" (0.76mm)0.039" (1.00mm)0.047" (1.20mm)0.049" (1.25mm)0.050" (1.27mm)0.055" (1.40mm)0.059" (1.50mm)0.063" (1.60mm)0.075" (1.91mm)0.077" (1.96mm)0.079" (2.00mm)0.081" (2.06mm)
Number of Positions Loaded
9121317181920-All
Style
-Board to BoardBoard to Board or CableBoard to Cable/Wire
Shrouding
-ShroudedShrouded - 1 WallShrouded - 2 WallShrouded - 3 WallShrouded - 4 WallUnshrouded
Mounting Type
-Board Edge, Cutout; Surface Mount, Right AngleBoard Edge, Straddle MountPanel Mount, Through HolePanel Mount, Through Hole, Right AngleSurface MountSurface Mount, Right AngleSurface Mount, Right Angle; Through HoleSurface Mount, Through HoleThrough HoleThrough Hole, Right Angle
Termination
-Kinked Pin, SolderPress-FitPress-Fit, SolderSolderWire Wrap
Fastening Type
-Detent LockEjectorFriction LockLatch HolderLatch LockLatch Lock/Eject HooksLatch Lock/Eject Hooks, LongLatch Lock/Eject Hooks, ShortLocking RampPush-InPush-PullPush-Turn LockScrew Lock
Contact Length - Mating
0.001" (0.03mm)0.002" (0.05mm)0.003" (0.08mm)0.004" (0.10mm)0.005" (0.13mm)0.006" (0.15mm)0.007" (0.18mm)0.008" (0.20mm)0.009" (0.23mm)0.010" (0.25mm)0.011" (0.28mm)0.012" (0.30mm)
Contact Length - Post
0.001" (0.03mm)0.002" (0.05mm)0.003" (0.08mm)0.004" (0.10mm)0.005" (0.13mm)0.006" (0.15mm)0.007" (0.18mm)0.008" (0.20mm)0.009" (0.23mm)0.010" (0.25mm)0.011" (0.28mm)0.012" (0.30mm)
Overall Contact Length
0.064" (1.62mm)0.081" (2.05mm)0.120" (3.05mm)0.189" (4.80mm)0.199" (5.05mm)0.209" (5.30mm)0.214" (5.43mm)0.217" (5.51mm)0.224" (5.69mm)0.228" (5.80mm)0.234" (5.94mm)0.235" (5.97mm)
Insulation Height
0.031" (0.80mm)0.034" (0.86mm)0.035" (0.90mm)0.038" (0.97mm)0.039" (1.00mm)0.047" (1.20mm)0.050" (1.27mm)0.055" (1.40mm)0.057" (1.45mm)0.059" (1.50mm)0.060" (1.52mm)0.065" (1.65mm)
Contact Shape
-CircularCircular, SquareRectangularSquare
Contact Finish - Mating
-GoldGold or Gold-PalladiumGold or Gold, GXT™Gold-PalladiumGold, GXT™NickelPalladium-NickelSilverTinTin-CopperTin-Lead
Contact Finish Thickness - Mating
1.00µin (0.025µm)1.97µin (0.050µm)2.00µin (0.051µm)3.00µin (0.076µm)3.90µin (0.099µm)3.94µin (0.100µm)5.00µin (0.127µm)5.11µin (0.130µm)5.90µin (0.150µm)8.00µin (0.203µm)10.0µin (0.25µm)12.0µin (0.30µm)
Contact Finish - Post
-GoldGold or Gold, GXT™Gold, GXT™NickelSilverSolder PlatedTinTin AlloyTin or Tin-AlloyTin-CopperTin-Lead
Contact Material
-Beryllium CopperBrassBrass AlloyBrass, NickelBronzeCartridge BrassCopperCopper AlloyCopper Zirconium AlloyModified Tin/Brass AlloyNickelPhosphor BronzePhosphor Bronze Alloy
Insulation Material
-Aluminum AlloyDiallyl Phthalate (DAP)Diallyl Phthalate (DAP), Glass FilledLiquid Crystal Polymer (LCP)Liquid Crystal Polymer (LCP), Glass FilledLiquid Crystal Polymer (LCP), Glass Filled, Halogen FreeLiquid Crystal Polymer (LCP), Halogen FreePlasticPolyamide (PA), NylonPolyamide (PA), Nylon, Glass FilledPolyamide (PA), Nylon, Halogen Free
Features
-Blind MatingBlind Mating, Board GuideBlind Mating, Board LockBoard GuideBoard Guide, Board LockBoard Guide, Board Lock, End ShroudsBoard Guide, Board Lock, End Shrouds, Pick and PlaceBoard Guide, Board Lock, Keying SlotBoard Guide, Connector Position Assurance (CPA), Solder RetentionBoard Guide, End ShroudsBoard Guide, End Shrouds, Mating Guide
Operating Temperature
-65°C ~ 105°C-65°C ~ 125°C-65°C ~ 130°C-65°C ~ 150°C-65°C ~ 200°C-65°C ~ 250°C-55°C ~ 105°C-55°C ~ 121°C-55°C ~ 125°C-55°C ~ 130°C-55°C ~ 150°C-55°C ~ 175°C
Ingress Protection
-IP67, IP69KIP67/IP69K - Dust Tight, Water Resistant, Waterproof
Material Flammability Rating
-UL94 HBUL94 V-0UL94 V-2
Insulation Color
-BeigeBlackBlack, GrayBlack, RedBlueBrownCreamGrayGreenIvoryNaturalRedTan
Current Rating (Amps)
0.2A0.2A, 0.5A0.5A0.5A per Contact500mA0.75A1A1A (AC/DC)1A (DC)1A per Contact1.2A1.25A
Voltage Rating
12VDC14V14VDC29.9VAC/DC30V30VAC30VAC/DC48V48VAC/DC50V50VAC50VAC/DC
Stocking Options
Environmental Options
Media
Marketplace Product
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Mfr Part #
Quantity Available
Price
Series
Package
Product Status
Connector Type
Contact Type
Pitch - Mating
Number of Positions
Number of Rows
Row Spacing - Mating
Number of Positions Loaded
Style
Shrouding
Mounting Type
Termination
Fastening Type
Contact Length - Mating
Contact Length - Post
Overall Contact Length
Insulation Height
Contact Shape
Contact Finish - Mating
Contact Finish Thickness - Mating
Contact Finish - Post
Contact Material
Insulation Material
Features
Operating Temperature
Ingress Protection
Material Flammability Rating
Insulation Color
Current Rating (Amps)
Voltage Rating
302-S201
302-S201
CONN HEADER VERT 20POS 2.54MM
On Shore Technology Inc.
20,121
In Stock
1 : $0.77000
Tray
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
-
0.122" (3.10mm)
-
0.358" (9.10mm)
Square
Gold
Flash
Gold
Brass
Polyester, Glass Filled
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A
250V
37,802
In Stock
1 : $0.86000
Tray
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Board or Cable
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
-
0.118" (3.00mm)
-
0.358" (9.10mm)
Square
Gold
Flash
Gold
Brass
Polybutylene Terephthalate (PBT)
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A
-
4,514
In Stock
1 : $1.32000
Tray
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Board or Cable
Shrouded - 4 Wall
Through Hole, Right Angle
Solder
Push-Pull
-
0.126" (3.20mm)
-
0.358" (9.10mm)
Square
Gold
Flash
Gold
Brass
Polybutylene Terephthalate (PBT)
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A
-
3020-20-0100-00
3020-20-0100-00
CONN HEADER VERT 20POS 2.54MM
CNC Tech
5,304
In Stock
1 : $1.43000
Tray
-
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
-
0.118" (3.00mm)
-
0.354" (9.00mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A (AC/DC)
250VAC/DC
61202021621
61202021621
CONN HEADER VERT 20POS 2.54MM
Würth Elektronik
6,487
In Stock
1 : $1.49000
Tray
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
-
0.118" (3.00mm)
-
0.358" (9.10mm)
Square
Gold
-
-
Copper Alloy
Polybutylene Terephthalate (PBT)
Keying Slot
-40°C ~ 125°C
-
UL94 V-0
Black
3A
250V
3020-20-0300-00
3020-20-0300-00
CONN HEADER SMD 20POS 2.54MM
CNC Tech
18,405
In Stock
1 : $1.62000
Tray
-
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.354" (9.00mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A (AC/DC)
-
30320-6002HB
30320-6002HB
CONN HEADER VERT 20POS 2.54MM
3M
32,175
In Stock
1 : $1.63000
Bulk
Bulk
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Board or Cable
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
0.236" (6.00mm)
0.110" (2.79mm)
-
0.366" (9.30mm)
Square
Gold
Flash
Gold
Brass
Polybutylene Terephthalate (PBT), Polyester, Glass Filled
Keying Slot
-55°C ~ 105°C
-
UL94 V-0
Black
1A
-
3220-20-0100-00
3220-20-0100-00
CONN HEADER VERT 20POS 1.27MM
CNC Tech
15,163
In Stock
1 : $1.79000
Tray
-
Tray
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole
Solder
Push-Pull
-
0.083" (2.11mm)
-
0.213" (5.40mm)
Square
Gold
Flash
-
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
1A
50VAC/DC
2,118
In Stock
1 : $1.98000
Cut Tape (CT)
1,000 : $1.09124
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.049" (1.25mm)
20
2
0.049" (1.25mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Detent Lock
0.094" (2.40mm)
-
-
0.189" (4.80mm)
Square
Gold
8.00µin (0.203µm)
Gold
Brass
Polyamide (PA), Nylon
Solder Retention
-35°C ~ 85°C
-
UL94 V-0
Beige
1A per Contact
150VAC/DC
16,452
In Stock
1 : $1.99000
Tube
Tube
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Board or Cable
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.358" (9.10mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA), Nylon
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
3A
-
Minitek 127 20021121 Series
20021121-00020C4LF
CONN HEADER SMD 20POS 1.27MM
Amphenol ICC (FCI)
15,909
In Stock
1 : $2.04000
Cut Tape (CT)
600 : $1.33112
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Board
Unshrouded
Surface Mount
Solder
Push-Pull
0.120" (3.05mm)
-
-
-
Square
Gold
10.0µin (0.25µm)
Tin
Copper Alloy
Thermoplastic
Pick and Place
-55°C ~ 125°C
-
UL94 V-0
Black
1A per Contact
125VAC
GRPBxx2VWVN-RC
GRPB102VWVN-RC
CONN HEADER VERT 20POS 1.27MM
Sullins Connector Solutions
17,520
In Stock
1 : $2.14000
Bulk
-
Bulk
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Board or Cable
Unshrouded
Through Hole
Solder
Push-Pull
0.118" (3.00mm)
0.091" (2.30mm)
0.248" (6.30mm)
0.039" (1.00mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
-
-40°C ~ 105°C
-
UL94 V-0
-
1A
-
3220-20-0200-00
3220-20-0200-00
CONN HEADER R/A 20POS 1.27MM
CNC Tech
10,209
In Stock
1 : $2.14000
Tray
-
Tray
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole, Right Angle
Solder
Push-Pull
-
0.083" (2.11mm)
-
0.201" (5.10mm)
Square
Gold
Flash
-
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
1A
50VAC/DC
501190-2017
5011902017
CONN HEADER SMD 20POS 1MM
Molex
72,298
In Stock
1 : $2.17000
Cut Tape (CT)
1,100 : $1.41296
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.039" (1.00mm)
20
2
0.105" (2.66mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Latch Holder
-
-
-
0.213" (5.40mm)
Square
Gold
3.90µin (0.099µm)
-
Phosphor Bronze
Polyamide (PA), Nylon
Pick and Place, Solder Retention
-
-
UL94 V-0
Natural
-
-
Dual Pin Header THT STR Dual BLK
61302021121
CONN HEADER VERT 20POS 2.54MM
Würth Elektronik
3,276
In Stock
1 : $2.20000
Bulk
Bulk
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Board or Cable
Unshrouded
Through Hole
Solder
Push-Pull
0.236" (6.00mm)
0.118" (3.00mm)
0.454" (11.54mm)
0.100" (2.54mm)
Square
Gold
-
-
Copper Alloy
Polyamide (PA6T), Nylon 6T
-
-40°C ~ 105°C
-
UL94 V-0
Black
3A
250V
3220-20-0300-00
3220-20-0300-00
CONN HEADER SMD 20POS 1.27MM
CNC Tech
53,648
In Stock
1 : $2.21000
Tray
-
Tray
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.213" (5.40mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
Black
1A
50VAC/DC
3220-20-0300-00-TR
3220-20-0300-00-TR
CONN HEADER SMD 20POS 1.27MM
CNC Tech
50,998
In Stock
1 : $2.23000
Cut Tape (CT)
700 : $1.52663
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.213" (5.40mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot, Pick and Place
-40°C ~ 105°C
-
UL94 V-0
Black
1A
50VAC/DC
3020-20-0300-00-TR
3020-20-0300-00-TR
CONN HEADER SMD 20POS 2.54MM
CNC Tech
18,595
In Stock
1 : $2.31000
Cut Tape (CT)
300 : $1.71777
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.354" (9.00mm)
Square
Gold
Flash
Gold
Copper Alloy
Polyamide (PA9T), Nylon 9T
Keying Slot, Pick and Place
-40°C ~ 105°C
-
UL94 V-0
Black
3A (AC/DC)
-
3221-20-0300-00-TR
3221-20-0300-00-TR
CONN HEADER SMD 20POS 1.27MM
CNC Tech
13,879
In Stock
1 : $2.40000
Cut Tape (CT)
700 : $1.66541
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.050" (1.27mm)
20
2
0.050" (1.27mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Push-Pull
-
-
-
0.213" (5.40mm)
Square
Gold
Flash
Gold
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot, Pick and Place
-40°C ~ 105°C
-
UL94 V-0
Black
1A (AC/DC)
50VAC/DC
582
In Stock
1 : $2.43000
Bulk
Bulk
Active
Header
Male Pin
0.165" (4.20mm)
20
2
0.165" (4.20mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Through Hole, Right Angle
Solder
Locking Ramp
-
0.142" (3.60mm)
-
0.402" (10.20mm)
Square
Tin
80.0µin (2.03µm)
Tin
Brass Alloy
Polyamide (PA), Nylon
-
-40°C ~ 105°C
-
UL94 V-2
Natural
9A
600VAC
SM20B-SRSS-TB(LF)(SN)
SM20B-SRSS-TB
CONN HEADER SMD R/A 20POS 1MM
JST Sales America Inc.
6,621
In Stock
1 : $2.45000
Cut Tape (CT)
3,000 : $1.26995
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.039" (1.00mm)
20
1
-
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount, Right Angle
Solder
Push-Pull
-
-
-
0.114" (2.90mm)
Square
Tin
-
Tin
Copper Alloy
Polyamide (PA), Nylon
Solder Retention
-25°C ~ 85°C
-
UL94 V-0
Natural
1A
50V
DF19G-20P-1H(52)
DF19G-20P-1H(52)
CONN HEADER SMD R/A 20POS 1MM
Hirose Electric Co Ltd
5,151
In Stock
1 : $2.48000
Cut Tape (CT)
1,000 : $1.37991
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Receptacle
Male Pin
0.039" (1.00mm)
20
1
-
All
Board to Cable/Wire
Shrouded - 3 Wall
Surface Mount, Right Angle
Solder
Friction Lock
-
-
-
0.065" (1.65mm)
-
-
-
-
Phosphor Bronze
Polyamide (PA), Nylon
Glow Wire Compliant, Shielded, Solder Retention
-35°C ~ 85°C
-
UL94 V-0
Black
-
100V
90814-0x20 Tin
0908140220
CONN HEADER SMD 20POS 1.27MM
Molex
9,988
In Stock
1 : $2.54000
Cut Tape (CT)
600 : $1.51162
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Blade
0.050" (1.27mm)
20
1
-
All
Board to Cable/Wire
Shrouded - 2 Wall
Surface Mount
Solder
Push-Pull
0.085" (2.15mm)
-
-
0.252" (6.40mm)
Rectangular
Tin
118.1µin (3.00µm)
Tin
Brass
Polyamide (PA), Nylon, Glass Filled
Board Guide
-
-
UL94 V-0
Natural
1.2A
250V
3010-20-003-13-00
3010-20-003-13-00
CONN HEADER SMD 20POS 2.54MM
CNC Tech
25,820
In Stock
1 : $2.65000
Tray
-
Tray
Active
Header
Male Pin
0.100" (2.54mm)
20
2
0.100" (2.54mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Latch Lock/Eject Hooks, Long
-
-
-
0.669" (17.00mm)
Square
Gold
Flash
-
Brass
Polyamide (PA9T), Nylon 9T
Keying Slot
-40°C ~ 105°C
-
UL94 V-0
-
3A
250VAC/DC
5011902027
5011902027
CONN HEADER SMD 20POS 1MM
Molex
9,885
In Stock
1 : $2.81000
Cut Tape (CT)
1,100 : $1.56335
Tape & Reel (TR)
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Header
Male Pin
0.039" (1.00mm)
20
2
0.105" (2.66mm)
All
Board to Cable/Wire
Shrouded - 4 Wall
Surface Mount
Solder
Latch Holder
-
-
-
0.213" (5.40mm)
Square
Gold
3.90µin (0.099µm)
-
Phosphor Bronze
Polyamide (PA), Nylon
Pick and Place, Solder Retention
-
-
UL94 V-0
Natural
-
-
Showing
of 24,705

Headers, Male Pins


This type of header contains male pins within a plastic base and is meant to be mated with a rectangular cable connector or a female socket header for board-to-board connection. These come in a variety of position and pitch options, with some having a breakaway option to manually change position count with ease. Some are shrouded with 1 to 4 walls or unshrouded. Mounting types include panel mount, board edge, stacking, surface mount, and through-hole.