F20-055 Equivalent & Substitute Parts

Part Overview

The F20-055 is a laminated core power transformer manufactured by Triad Magnetics, rated at 1.1VA with dual secondary windings. This through-hole mounted component operates at 115V primary voltage with configurable secondary outputs of 10V parallel or 20V series. The transformer is classified as Class 2/3 and is part of the Split Pack™ series. The part is currently active in production with 1086 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility is required within the specified electrical and mechanical parameters.

Substiute Parts

F20-055

Triad MagneticsIn Stock: 1186F20-055 Datasheet

Current PartRFQ

164D20

Hammond ManufacturingIn Stock: 1134164D20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the F20-055 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Primary voltage: 115V
• Secondary voltage configuration: Parallel 10V, Series 20V
• Maximum output current: Parallel 110mA, Series 55mA
• Power rating: 1.1VA
• Voltage isolation: 2500Vrms
• Winding configuration: Single primary, dual secondary, no center tap

Mechanical Parameters (Must Match Exactly):

• Core type: Laminated
• Mounting type: Through hole
• Termination style: PC pin
• Footprint dimensions: 34.93mm L × 28.58mm W (±0.02mm tolerance acceptable)

Compliance Parameters (Must Match):

• RoHS3 compliance
• REACH unaffected status
• ECCN EAR99 classification

The substitute part 164D20 meets all electrical and compliance requirements. Mechanical height variation (23.80mm vs. 33.32mm) and packaging format differences do not affect functional substitution in through-hole applications with adequate PCB clearance.

Parameter Comparison

Engineering Selection Recommendations

The 164D20 manufactured by Hammond Manufacturing is a direct functional equivalent to the F20-055. Both components are active products with ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current and future applications.

Selection Criteria:

The F20-055 is the primary choice when the Split Pack™ series designation and compact 23.80mm height are design requirements. The 164D20 is functionally equivalent and suitable for applications where the increased height of 33.32mm does not create PCB layout constraints. Both parts deliver identical electrical performance across all specified voltage and current parameters.

Packaging format differs between the two parts (F20-055 supplied in box; 164D20 supplied in bulk). This distinction affects inventory management and procurement processes but does not impact electrical or mechanical performance in the application.

The width dimension variance of 0.02mm (28.58mm vs. 28.56mm) is within standard manufacturing tolerance and does not affect PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 164D20 replace the F20-055 in all applications?

A: The 164D20 is electrically and mechanically equivalent to the F20-055 for all applications where the increased seated height of 33.32mm does not conflict with PCB clearance requirements. Verify available vertical space in your design before substitution.

Q: What is the difference between the two parts?

A: The F20-055 and 164D20 are identical in electrical specifications, core type, winding configuration, and compliance certifications. The primary differences are manufacturer (Triad Magnetics vs. Hammond Manufacturing), series designation (Split Pack™ vs. 164), packaging format (box vs. bulk), and physical height (23.80mm vs. 33.32mm).

Q: Are both parts currently available?

A: Both parts are active products in production. The F20-055 has 1086 units in stock; the 164D20 has 1106 units in stock.

Q: Do the parts have the same footprint?

A: The parts have nearly identical footprints with length and width dimensions matching within manufacturing tolerance (34.93mm L × 28.58mm W for F20-055; 34.93mm L × 28.56mm W for 164D20). The seated height differs by 9.52mm, which may affect PCB layout in space-constrained designs.

Q: What compliance certifications apply to both parts?

A: Both the F20-055 and 164D20 are ROHS3 compliant, REACH unaffected, and classified as EAR99 under ECCN regulations.

Q: Can I use the 164D20 if my design specifies the F20-055?

A: Substitution is permissible when electrical and mechanical requirements are met. Verify that the increased height of the 164D20 does not create clearance issues in your PCB assembly. Confirm with your design team that the Hammond Manufacturing 164 series is acceptable for your application.

Q: What is the significance of the packaging difference?

A: The F20-055 is supplied in box packaging; the 164D20 is supplied in bulk packaging. This affects order quantities, storage, and handling procedures but does not impact component performance or electrical characteristics.