Equivalent & Substitute Parts for F8-20 Laminated Power Transformer

Part Overview

The F8-20 is a laminated core power transformer manufactured by Triad Magnetics, rated for 100VA with a primary voltage of 115V and secondary voltage of 20V at 5A maximum output current. This chassis mount transformer features a center tap secondary winding and is designed for applications requiring isolated AC power conversion with 2500VAC isolation voltage. The part is currently active in production with ROHS3 compliance and is suitable for industrial and commercial equipment applications. Equivalent substitute parts may be required due to inventory availability, lead time considerations, or specific application requirements within the allowed electrical and mechanical parameter ranges.

Substiute Parts

F8-20

Triad MagneticsIn Stock: 821F8-20 Datasheet

Current PartRFQ

241-8-20

Signal TransformerIn Stock: 1136241-8-20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F8-20 with equivalent parts is determined by strict electrical and mechanical parameter matching. The following criteria establish substitution eligibility:

Electrical Parameters (Must Match Exactly):

• Primary voltage: 115V
• Secondary voltage: 20V
• Power rating: 100VA
• Maximum output current: 5A
• Center tap configuration: Yes
• Isolation voltage: 2500VAC minimum

Mechanical Parameters (Must Match or Be Compatible):

• Mounting type: Chassis Mount
• Termination style: Solder and Quick Connect compatible
• Physical dimensions: Within tolerance of stated measurements
• Weight: Approximately 2.8 lbs (1.3 kg)

Compliance Parameters (Must Match):

• Core type: Laminated
• RoHS status: ROHS3 Compliant
• Product status: Active

The Signal Transformer model 241-8-20 meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Signal Transformer 241-8-20 is a direct equivalent substitute for the Triad Magnetics F8-20 based on complete electrical parameter alignment and mechanical compatibility. Both transformers are active products with current manufacturing status and ROHS3 compliance certification. The dimensional tolerances between the two units are within acceptable ranges for chassis mount applications. Both parts carry identical isolation voltage ratings and termination compatibility specifications. Selection between these two parts may be based on inventory availability, delivery lead times, or established supplier relationships, as the electrical and mechanical performance characteristics are equivalent.

Frequently Asked Questions (FAQ)

Q: Can the 241-8-20 be used as a direct replacement for the F8-20 in existing designs?

A: Yes. The 241-8-20 meets all electrical specifications including primary voltage (115V), secondary voltage (20V), power rating (100VA), output current (5A), and isolation voltage (2500VAC). Mechanical dimensions are within tolerance for chassis mount applications. Both units feature center tap secondary windings and compatible termination styles.

Q: Are there any dimensional differences between these two transformers?

A: Minor dimensional variations exist within acceptable tolerances. The 241-8-20 measures 102.40mm L x 58.50mm W x 67.70mm H (seated), compared to the F8-20 at 102.39mm L x 57.15mm W x 65.07mm H (seated). These differences do not affect chassis mount compatibility or electrical performance.

Q: Do both transformers meet the same compliance standards?

A: Yes. Both the F8-20 and 241-8-20 are ROHS3 compliant, REACH unaffected, and carry the same ECCN (EAR99) and HTSUS (8504.31.4065) classifications.

Q: What termination options are available on both parts?

A: Both transformers feature solder and quick connect termination styles. The F8-20 specifies 0.187" (4.7mm) quick connect terminals, and the 241-8-20 provides compatible quick connect termination suitable for the same applications.

Q: Are there any electrical performance differences between these transformers?

A: No. Both transformers are rated identically for 100VA power, 115V primary input, 20V secondary output at 5A maximum current, with 2500VAC isolation voltage and center tap secondary configuration.