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Through Hole Package

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Through-Hole Package Types

Through-Hole Package Types

DIP, SIP, TO, and other through-hole package reference

DIP (Dual In-line Package)

PackagePin CountRow Spacing (mm)Pitch (mm)Body Width (mm)
DIP-4 (narrow)47.622.546.35
DIP-6 (narrow)67.622.546.35
DIP-8 (narrow)87.622.546.35
DIP-14 (narrow)147.622.546.35
DIP-16 (narrow)167.622.546.35
DIP-18187.622.547.62
DIP-20207.622.547.62
DIP-22 (wide)2215.242.5413.97
DIP-24 (narrow)247.622.546.35
DIP-24 (wide)2415.242.5413.97
DIP-28 (narrow)287.622.546.35
DIP-28 (wide)2815.242.5413.97
DIP-32 (wide)3215.242.5413.97
DIP-40 (wide)4015.242.5413.97
DIP-48 (wide)4815.242.5413.97
DIP-64 (wide)6419.052.5417.78

SIP (Single In-line Package)

PackagePin CountPitch (mm)Height (mm)Common Use
SIP-332.5410-12Voltage regulators
SIP-442.5410-12Resistor networks
SIP-552.5410-12Resistor networks
SIP-662.5410-12Resistor networks
SIP-772.5410-12Resistor networks
SIP-882.5410-12Resistor networks
SIP-992.5410-12Resistor networks
SIP-10102.5410-12Resistor networks
SIP-12122.5420-25DC-DC converters

TO (Transistor Outline) - Through-Hole

PackagePinsDimensions (mm)Pitch (mm)Application
TO-3 (metal can)2+case26.7 dia10.9Power transistors
TO-5 (metal can)3-88.1 dia2.54Op-amps, transistors
TO-8 (metal can)4-1212.7 dia2.54Sensors, hybrids
TO-18 (metal can)35.3 dia2.54RF transistors
TO-39 (metal can)3-48.1 dia2.54Transistors, photodetectors
TO-46 (metal can)35.4 dia2.54Laser diodes, LEDs
TO-9234.2 × 3.81.27Small signal transistors
TO-12638.0 × 3.02.54Medium power
TO-2203-510.0 × 4.52.54Power devices
TO-220F310.0 × 4.52.54Isolated power
TO-247316.0 × 5.05.45High power
TO-264320.0 × 5.05.45Very high power
TO-3P315.5 × 5.05.45Power (plastic TO-3)

Through-Hole Advantages

Through-hole components are ideal for prototyping, educational projects, and applications requiring mechanical strength. DIP packages fit standard breadboards and IC sockets. TO packages provide excellent thermal performance with heatsinks. While SMD dominates production, through-hole remains relevant for power components, connectors, and hobbyist projects.

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Through Hole Package is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.