ASU003-03SN-HE is a 3-way Deutsch Autosport Micro UltraLite (ASU) series oval flange receptacle for bulkhead or firewall panel mounting, with size 22 Socket contacts and N keyway — Red band. Two-hole bolt-down flange. Shell size 3, rated at 5 A per circuit, accepts 22–28 AWG with PTFE (Tefzel) insulation. IP67 sealed, conductive black zinc finish. 30% lighter than a mated ASL pair, with a 17% smaller coupling ring.
ASU003-03SN-HE Connector Specifications
| Property | Value |
|---|---|
| Series | Micro UltraLite (ASU) |
| Body style | Oval Flange Receptacle |
| Shell size | 3 |
| Positions | 3 |
| Contact size | 22 |
| Contact type | Socket |
| Keyway | N — Red band |
| Wire range | 22–28 AWG |
| Rated current | 5 A per contact |
| IP rating | IP67 |
| Shell material | Conductive black zinc finish |
| Contact material | Gold-plated copper alloy |
| Mounting | Two-hole bolt-down oval flange |
Mating Connector
Mates with the same-keyway ASU03 3-way plug carrying Pin contacts:
– ASU603-03PN-HE
Contacts and Tools
Size 22 contacts are included. For replacement or spare contacts:
– Socket contact 604984
Crimp tooling: M22520/2-01 with positioner 605464.
Insertion / removal: M81969/14-01.
Shrink Boot
The housing has a built-in shrink boot lip. Compatible boots for shell size 3:
| Straight | 90° | |
|---|---|---|
| Raychem | 204W221-25-G03-0 | 224W221-25-G03-0 |
| HellermannTyton | 1037-4-G | 1182-4-G |













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