F48-250 Equivalent & Substitute Parts Reference

Part Overview

The F48-250 is a laminated core power transformer manufactured by Triad Magnetics, rated at 12VA with dual secondary windings. This through-hole mounted component is designed for Class 2/3 applications and features a single primary winding (115V) with configurable secondary outputs (parallel 24V/500mA or series 48V/250mA). The part maintains Active product status with full RoHS3 compliance and 2500Vrms isolation rating. Equivalent parts are identified when identical electrical specifications and mechanical compatibility are required for design continuity or inventory management.

Substiute Parts

F48-250

Triad MagneticsIn Stock: 880F48-250 Datasheet

Current PartRFQ

164G48

Hammond ManufacturingIn Stock: 845164G48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the F48-250 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Primary voltage (115V), secondary voltage configuration (parallel 24V and series 48V), output current ratings (parallel 500mA and series 250mA), power rating (12VA), winding configuration (single primary, dual secondary, no center tap), and isolation voltage (2500Vrms).

Mechanical Specifications: Through-hole mounting type, PC pin termination style, and physical footprint compatibility (47.63mm L × 39.67mm W).

Compliance Requirements: RoHS3 compliance and REACH unaffected status.

The Hammond Manufacturing 164G48 meets all electrical and mechanical substitution criteria. Dimensional variance in seated height (38.10mm vs. 36.50mm) remains within acceptable through-hole PCB mounting tolerances and does not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: F48-250 (Triad Magnetics) remains the original specification component with Active product status and established supply chain availability (851 pcs in stock).

Equivalent Substitute: 164G48 (Hammond Manufacturing) provides full electrical and mechanical equivalence with identical power delivery, voltage configuration, and isolation characteristics. Both components maintain Active product status and RoHS3 compliance. The 164G48 is suitable for direct substitution in through-hole PCB applications where the 1.60mm height variance (38.10mm vs. 36.50mm) does not create mechanical interference. Supply availability for 164G48 is 753 pcs in stock.

Compliance Verification: Both parts satisfy ROHS3 and REACH requirements. ECCN and HTSUS classifications are identical, confirming regulatory equivalence for procurement and export purposes.

Frequently Asked Questions (FAQ)

Q: Can the 164G48 be used as a direct replacement for the F48-250 on existing PCBs?

A: Yes. The 164G48 provides electrical equivalence across all specified parameters (12VA, 115V primary, dual secondary windings with 24V/500mA parallel and 48V/250mA series configurations). Through-hole mounting and PC pin termination are identical. The seated height difference of 1.60mm is within standard PCB clearance tolerances for through-hole components and does not affect functional compatibility.

Q: Are there differences in isolation voltage or safety ratings between these parts?

A: No. Both the F48-250 and 164G48 specify 2500Vrms isolation voltage. Both maintain identical RoHS3 compliance and REACH unaffected status, confirming equivalent safety and environmental compliance.

Q: What is the significance of the packaging difference (Box vs. Bulk)?

A: Packaging designation reflects supplier delivery format only and does not affect component performance or electrical specifications. Selection between Box and Bulk packaging is determined by procurement quantity requirements and inventory management practices, not technical compatibility.

Q: Can these transformers be configured for both parallel and series secondary operation?

A: Yes. Both the F48-250 and 164G48 feature dual secondary windings that support dual-voltage operation. Parallel configuration delivers 24V at 500mA; series configuration delivers 48V at 250mA. Configuration is determined by winding connection method during PCB assembly and does not require component substitution.

Q: Are there any moisture sensitivity considerations for these parts?

A: The F48-250 lists MSL as Not Applicable. The 164G48 specifies MSL 1 (Unlimited). Both designations indicate minimal moisture sensitivity risk for standard handling and storage conditions typical of through-hole transformer components.