FS48-400 Equivalent & Substitute Parts Reference

Part Overview

The FS48-400 is a laminated core power transformer manufactured by Triad Magnetics, rated at 20VA with dual primary and secondary windings. This through-hole mounted component is designed for applications requiring selectable output voltage configurations through series or parallel winding connection. The part is currently in active production status with 747 units in stock. Equivalent and substitute parts are identified when identical electrical specifications, mechanical dimensions, and compliance certifications are maintained across alternative manufacturers.

Substiute Parts

FS48-400

Triad MagneticsIn Stock: 766FS48-400 Datasheet

Current PartRFQ

162H48

Hammond ManufacturingIn Stock: 884162H48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FS48-400 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Power rating: 20VA
• Primary voltage options: 115V and 230V
• Secondary voltage configurations: 24V (parallel) and 48V (series)
• Output current capacity: 800mA (parallel) and 400mA (series)
• Isolation voltage: 2500Vrms
• Winding configuration: Dual primary and dual secondary

Mechanical Specifications:

• Mounting method: Through hole
• Termination: PC pin
• Core type: Laminated
• Physical dimensions: 57.15mm L x 47.63mm W
• Maximum seated height: ≤36.52mm

Compliance Requirements:

• RoHS3 compliance
• REACH unaffected status
• ECCN classification: EAR99

The Hammond Manufacturing 162H48 meets all specified electrical and mechanical parameters, with seated height of 36.52mm (within tolerance of the FS48-400 maximum of 36.50mm).

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 162H48 is a direct electrical and mechanical equivalent to the FS48-400. Both components are active production items with full RoHS3 compliance and REACH unaffected status. The 162H48 is available in bulk packaging with 858 units in stock, compared to 747 units of the FS48-400 in box packaging.

Selection between these parts should be based on:

1. Packaging Requirements: FS48-400 is supplied in box packaging; 162H48 is supplied in bulk packaging.
2. Inventory Availability: Both parts maintain active stock levels.
3. Compliance Certification: Both parts meet identical regulatory requirements (RoHS3, REACH, EAR99).
4. Physical Fit: Seated height difference of 0.02mm (36.52mm vs 36.50mm) is within standard PCB assembly tolerances.

Both parts are suitable for direct substitution in through-hole power transformer applications requiring 20VA capacity with dual voltage primary and secondary configurations.

Frequently Asked Questions (FAQ)

Q: Can the 162H48 be used as a direct replacement for the FS48-400 in existing designs?

A: Yes. The 162H48 meets all electrical specifications, mechanical dimensions, and compliance certifications of the FS48-400. The seated height difference of 0.02mm is within standard manufacturing tolerances for through-hole mounted components.

Q: Are the winding configurations identical between these parts?

A: Yes. Both the FS48-400 and 162H48 feature dual primary windings and dual secondary windings, enabling identical series and parallel voltage configurations (24V parallel, 48V series).

Q: What is the significance of the packaging difference?

A: The FS48-400 is packaged in boxes, while the 162H48 is supplied in bulk packaging. This affects handling, storage, and inventory management but does not impact electrical or mechanical performance.

Q: Do both parts support the same primary voltage inputs?

A: Yes. Both transformers accept 115V and 230V primary inputs with identical output current ratings of 800mA (parallel configuration) and 400mA (series configuration).

Q: Are there any compliance or certification differences?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the isolation voltage rating for both parts?

A: Both the FS48-400 and 162H48 are rated for 2500Vrms isolation voltage between primary and secondary windings.