BOM / RFQ

ABB 1SFA899311R1044 PSTHM-44/18 Thyristor, Obsolete

MPN1SFA899311R1044

Obsolete

ABB, PSTHM series, thyristor module, order code 1SFA899311R1044, technical identifier PSTHM-44/18, suitable for PSTX softstarters, obsolete lifecycle status.

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1SFA899311R1044 — Specifications
Parameter	Value
Suitable for	PSTX
Product main type	PSTHM
Technical information	PSTHM-44/18
Suitable for product class	Softstarters
Popular downloads (CAD dimensional drawing)	2CDC001079B0201
Popular downloads (Data sheet, technical information)	1SFC132013C0201
Material compliance (Toxic substances control act - TSCA)	2CMT2023-006524
Material compliance (Conflict minerals reporting template)	9AKK108467A5658

Product details

PSTHM-44/18 thyristor module — obsolete, for PSTX softstarter spares

The ABB 1SFA899311R1044 is a PSTHM-44/18 thyristor module designed as a replacement power component for PSTX-series softstarters.

Sourcing reality for an obsolete softstarter spare

The module carries the technical identifier PSTHM-44/18 and is suitable for PSTX softstarters — a critical detail when verifying fit against the nameplate of the unit being repaired. RoHS compliance follows EU Directive 2011/65/EU and Amendment 2015/863, and the product is classified as Business To Business, not within WEEE scope.

Frequently asked questions

What is the replacement for 1SFA899311R1044?

No official successor order code is listed in the manufacturer's lifecycle data for the 1SFA899311R1044. For a PSTX softstarter requiring this thyristor module, sourcing the original obsolete part through independent distribution is the current path.