ASM SIPLACE 03005123 is identified in SIPLACE maintenance documentation as a Hold Circuit Assembly for the C&P20 head family. Market parts references also list 03005123S01 as a CP20A distributor, so the exact P/N and installed head context are more useful than either description alone.
This should not be interpreted as a generic electronic circuit module. The maintenance documentation places the hold-circuit assembly within the C&P20 pneumatic and vacuum service system, together with seals, Venturi-related parts and other serviceable pneumatic components.
03005123 Hold Circuit Specifications
| Part Number | 03005123 |
| Documented Reference | 03005123S01 / 03005123-xx |
| Service-Manual Name | Hold Circuit Assembly C&P20 |
| Alternative Market Description | CP20A distributor |
| System Area | C&P20 pneumatic / vacuum service path |
| Related Hold-Circuit P/N | 03055424 — also documented as Hold Circuit Assembly C&P20 |
| Key Matching Rule | Relationship or interchangeability with 03055424 is not confirmed — use the installed label |
The presence of two separately documented C&P20 hold-circuit references is exactly why this part should not be purchased from the description alone. 03005123 and 03055424 need to remain separate service identities until the installed head version or applicable service documentation confirms their relationship.
Before replacing the complete assembly, inspect the serviceable pneumatic path according to the head-maintenance procedure. Seal condition, contamination, Venturi-related parts and local connections may affect the same hold/vacuum function without requiring the entire assembly to be replaced.
For matching support, send the complete 03005123 label, head identification, installation photos and fault information. Other C&P20 pneumatic and head-service parts can be reviewed under ASM SIPLACE SMT head parts.