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2SFT251 — TRANSFORMER,CURRENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2SFT251: TRANSFORMER,CURRENT.

The TRANSFORMER,CURRENT is a the manufacturer industrial component. Key specifications include body_height: 2.670 INCHES MINIMUM AND 2.710 INCHES MAXIMUM IN, body_length: 2.400 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN, overall_width: 1.990 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: SLOT SINGLE GROUP, frequency_rating: 47.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 5950-01-305-8639, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
2SFT251
NSN: 5950-01-305-8639
FSC: 5950 — Coils and Transformers
CAGE: 59138 — INSTRUMENT TRANSFORMERS INC (USA)
SPECIFICATIONS
body_height2.670 INCHES MINIMUM AND 2.710 INCHES MAXIMUM IN
body_length2.400 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN
overall_width1.990 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodSLOT SINGLE GROUP
frequency_rating47.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
special_featuresPRIMARY RATED BUT NOT INCLUDED
mounting_slot_width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
winding_operating_current5.0 AMPERES AC NOMINAL SINGLE COMPONENT SINGLE SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity2 THREADED STUD
NSN5950-01-305-8639
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,CURRENT TITLE COMPONENT PN 2SFT251 MFR TRANSFORMER,CURRENT
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
INCLOSURE TYPE: FULLY INCLOSED
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.720 INCHES MINIMUM AND 1.760 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
MOUNTING METHOD: SLOT SINGLE GROUP
•
BODY HEIGHT: 2.670 INCHES MINIMUM AND 2.710 INCHES MAXIMUM IN
•
MAXIMUM TRANSFORMER POWER RATING: 7.5 VOLT-AMPERE SINGLE COMPONENT
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSED
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.720 INCHES MINIMUM AND 1.760 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHODSLOT SINGLE GROUP
BODY HEIGHT2.670 INCHES MINIMUM AND 2.710 INCHES MAXIMUM IN
MAXIMUM TRANSFORMER POWER RATING7.5 VOLT-AMPERE SINGLE COMPONENT
OVERALL WIDTH1.990 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
WINDING FUNCTION AND QUANTITY1 SECONDARY SINGLE COMPONENT
BODY LENGTH2.400 INCHES MINIMUM AND 2.440 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5950 — Coils and Transformers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5950-00-000-0146 5950-00-001-1372 5950-00-001-1386 5950-00-001-1410 5950-00-001-1411 5950-00-001-1412 5950-00-001-1413 5950-00-001-1414
SUBSTITUTES & CROSS-REFERENCES 1
802-9430-RSLSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2SFT251?
2SFT251 is a TRANSFORMER,CURRENT.
What parts can replace 2SFT251?
There is 1 known substitute for 2SFT251: 802-9430-RSLS. Substitute compatibility should be verified for your specific system.
What is the NSN for 2SFT251?
2SFT251 is cataloged in the U.S. Government catalog under NSN 5950-01-305-8639. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.