Specification	203A021-4/42-0

Large Diameter Recovered [diameter]	0.319 in
Large Diameter Recovered [diameter]	8.1 mm
Large Diameter Supplied [diameter]	20.29 mm
Large Diameter Supplied [diameter]	0.799 in
Large Recovered Length	0.752 in
Large Recovered Length	19.1 mm
Material	Polyolefin (PO), Flexible
Small Diameter Recovered	0.13 in
Small Diameter Recovered	3.3 mm
Small Diameter Supplied [diameter]	0.799 "
Small Diameter Supplied [diameter]	20.29 mm, 20.3 mm
Total Length Recovered	2.402 "
Total Length Recovered	61.01 mm
Type	Boot

203A021 Series

Part	Large Recovered Length	Large Recovered Length	Material	Large Diameter Recovered [diameter]	Large Diameter Recovered [diameter]	Total Length Recovered	Total Length Recovered	Small Diameter Supplied	Small Diameter Supplied	Small Diameter Recovered	Small Diameter Recovered	Type	Large Diameter Supplied [diameter]	Large Diameter Supplied [diameter]	Large Diameter Supplied [diameter]	Small Diameter Supplied [diameter]	Small Diameter Supplied [diameter]
TE Connectivity AMP Connectors 203A021-25-0	0.752 in	19.1 mm	Elastomer	0.319 in	8.1 mm	2.402 "	61.01 mm	0.402 in	10.21 mm	0.13 in	3.3 mm	Boot	20.29 mm	0.799 in
TE Connectivity AMP Connectors 203A021-4-0	0.75 "	19.05 mm	Polyolefin (PO) Flexible	0.32 in	8.13 mm	2.402 "	61.01 mm			0.26 in	6.6 mm	Boot	0.8 in		20.32 mm	10.16 mm	0.4 in
TE Connectivity AMP Connectors 203A021-4/42-0	0.752 in	19.1 mm	Polyolefin (PO) Flexible	0.319 in	8.1 mm	2.402 "	61.01 mm			0.13 in	3.3 mm	Boot	20.29 mm	0.799 in		20.29 mm 20.3 mm	0.799 "

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	Bulk	250	$ 20.59	1m+
	N/A	0	$ 20.54	1m+

General part information

Straight Heat Shrink Boot, 203 Shape Code, 4 Material Code, 10 Material Systems Code, Adhesive Precoat, -55 – 135 °C [-67 – 275 °F], 42 Adhesive Code

Technical documentation and resources