F-377P Equivalent & Substitute Parts Reference

Part Overview

The F-377P is an active laminated core power transformer manufactured by Triad Magnetics, rated at 24VA with dual primary and dual secondary windings. This through-hole mounted component is designed for applications requiring flexible voltage configurations through series and parallel winding connections. The part is ROHS3 compliant and currently in active production status with 933 units in stock.

Equivalent and substitute parts are identified when they maintain electrical performance specifications and mechanical compatibility within the same product category. The F-377P has one qualified substitute: the Hammond Manufacturing 160H40.

Substiute Parts

F-377P

Triad MagneticsIn Stock: 997F-377P Datasheet

Current PartRFQ

160H40

Hammond ManufacturingIn Stock: 839160H40 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Hammond Manufacturing 160H40 qualifies as an equivalent substitute for the F-377P based on the following matching electrical and mechanical parameters:

Matching Critical Parameters:

• Power rating: 24VA
• Primary voltage configuration: 115V, 230V dual primary
• Secondary voltage output: Parallel 20V, Series 40V
• Maximum output current: Parallel 1.2A, Series 600mA
• Core type: Laminated
• Mounting type: Through hole
• Termination style: PC pin

Matching Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status
• ECCN EAR99 classification
• HTSUS code 8504.31.4035

The 160H40 maintains functional and electrical equivalence with the F-377P. Both transformers support identical voltage and current configurations, enabling direct substitution in applications where the primary and secondary winding specifications are the determining factors.

Parameter Comparison

Engineering Selection Recommendations

Both the F-377P and 160H40 are active production components with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations. Selection between these parts should be based on the following factors:

F-377P Selection Criteria:

• Preferred when footprint dimensions of 57.15mm L x 41.28mm W are required
• Triad Magnetics supply chain preference
• Bulk packaging not required

160H40 Selection Criteria:

• Preferred when footprint dimensions of 41.40mm L x 57.15mm W are required
• Hammond Manufacturing supply chain preference
• Bulk packaging availability
• Applications requiring isolation voltage exceeding 1500Vrms benefit from the 2000Vrms rating

Both transformers deliver identical electrical performance in series and parallel configurations. Physical dimension differences require PCB layout verification before substitution. The 160H40 provides higher isolation voltage margin, which may be advantageous in noise-sensitive or high-voltage isolation applications.

Frequently Asked Questions (FAQ)

Q: Can the 160H40 directly replace the F-377P in existing designs?

A: Electrical substitution is valid. The 160H40 matches all critical electrical parameters: 24VA power rating, dual 115V/230V primary, parallel 20V/series 40V secondary, and identical output current ratings. However, physical dimensions differ (length and width are transposed). PCB layout must be verified to confirm the 41.40mm L x 57.15mm W footprint accommodates the mounting holes and clearance requirements of your application.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: power rating (24VA), primary voltage configuration (115V/230V dual), secondary voltage output (parallel 20V/series 40V), maximum output current (parallel 1.2A/series 600mA), core type (laminated), mounting type (through hole), and termination style (PC pin). All these parameters must match between the main part and substitute.

Q: Does the higher isolation voltage of the 160H40 affect compatibility?

A: No. The 160H40's 2000Vrms isolation voltage exceeds the F-377P's 1500Vrms specification. Higher isolation voltage is not a compatibility issue; it represents an additional safety margin. This does not degrade performance in applications designed for 1500Vrms isolation.

Q: Are there packaging differences between these parts?

A: Yes. The F-377P is supplied in box packaging, while the 160H40 is supplied in bulk packaging. This affects order quantities and handling but does not impact electrical or mechanical compatibility.

Q: What compliance certifications apply to both parts?

A: Both the F-377P and 160H40 are ROHS3 compliant and REACH unaffected. Both carry ECCN EAR99 classification and HTSUS code 8504.31.4035, making them equivalent for regulatory and export purposes.

Q: How do the physical dimensions affect PCB design?

A: The F-377P measures 57.15mm L x 41.28mm W, while the 160H40 measures 41.40mm L x 57.15mm W. The length and width are effectively transposed. Height is nearly identical (34.93mm vs 35.05mm). Before substitution, verify that the through-hole mounting pattern and surrounding component clearances accommodate the different footprint orientation.