Equivalent & Substitute Parts for F7-16 Laminated Core Power Transformer

Part Overview

The F7-16 is a laminated core power transformer manufactured by Triad Magnetics, rated at 56VA with a single primary winding (115V) and single secondary winding (16V) featuring a center tap. This chassis mount transformer is designed for applications requiring step-down voltage conversion with isolation. The part is currently in active production status with 862 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across manufacturers, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Power Rating (Max)	56VA
Voltage - Primary	115V
Voltage - Secondary (Full Load)	16V
Current - Output (Max)	3.5A
Primary Winding Configuration	Single
Secondary Winding Configuration	Single
Center Tap	Yes
Core Type	Laminated
Mounting Type	Chassis Mount
Termination Style	Solder, Quick Connect
Voltage - Isolation	2500VAC / 2500Vrms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the F7-16 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Primary voltage (115V), secondary voltage (16V), power rating (56VA), maximum output current (3.5A), winding configuration (single primary, single secondary), center tap presence, and isolation voltage (2500VAC/Vrms) must be identical.

Mechanical Compatibility: Mounting type (chassis mount), termination style (solder and quick connect), and physical dimensions must accommodate direct replacement in existing circuit board layouts and enclosures.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status ensure substitutes meet current environmental and hazardous substance restrictions.

Product Status: Only active production parts are listed as substitutes to ensure ongoing availability and manufacturer support.

The substitute part 241-7-16 (Signal Transformer) meets all specified criteria and is classified as a direct equivalent.

Parameter Comparison

Parameter	F7-16 (Triad Magnetics)	241-7-16 (Signal Transformer)	Match Status
Power - Max	56VA	56VA	Equivalent
Voltage - Primary	115V	115V	Equivalent
Voltage - Secondary (Full Load)	16V	16V	Equivalent
Current - Output (Max)	3.5A	3.5A	Equivalent
Primary Winding(s)	Single	Single	Equivalent
Secondary Winding(s)	Single	Single	Equivalent
Center Tap	Yes	Yes	Equivalent
Type	Laminated Core	Laminated Core	Equivalent
Mounting Type	Chassis Mount	Chassis Mount	Equivalent
Termination Style	Solder, Quick Connect - 0.187" (4.7mm)	Solder, Quick Connect	Equivalent
Voltage - Isolation	2500VAC	2500Vrms	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Weight	1.7 lbs (771.1 g)	1.7 lbs (771.1 g)	Equivalent
Size / Dimension	93.65mm L x 46.02mm W	93.70mm L x 49.20mm W	Within Tolerance
Height - Seated (Max)	57.15mm	57.80mm	Within Tolerance

Engineering Selection Recommendations

The 241-7-16 (Signal Transformer) is a direct equivalent substitute for the F7-16 based on complete electrical and mechanical parameter alignment. Both parts are active production items with ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance and supply chain continuity.

Dimensional variations between the two parts (width difference of 3.18mm and height difference of 0.65mm) fall within acceptable mechanical tolerances for chassis mount applications and do not preclude direct substitution in standard mounting configurations.

Selection between F7-16 and 241-7-16 may be based on inventory availability, lead time, cost considerations, or existing supplier relationships, as both parts deliver identical electrical performance and isolation characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 241-7-16 be used as a direct replacement for the F7-16 in existing designs?

A: Yes. The 241-7-16 meets all electrical specifications (56VA, 115V primary, 16V secondary, 3.5A output, center tap, 2500VAC isolation) and mechanical requirements (chassis mount, solder/quick connect termination). Dimensional variations are within acceptable tolerances for standard mounting applications.

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

A: Substitution requires equivalence in power rating (56VA), primary voltage (115V), secondary voltage (16V), output current (3.5A), winding configuration (single primary/secondary with center tap), core type (laminated), mounting type (chassis mount), termination style (solder/quick connect), and isolation voltage (2500VAC/Vrms). RoHS3 compliance and REACH unaffected status are also required.

Q: Are there dimensional differences between the F7-16 and 241-7-16?

A: Minor dimensional variations exist. The 241-7-16 is 3.18mm wider (49.20mm vs. 46.02mm) and 0.65mm taller (57.80mm vs. 57.15mm). These differences are within acceptable mechanical tolerances for chassis mount applications and do not prevent direct substitution.

Q: Do both parts have the same regulatory compliance status?

A: Yes. Both the F7-16 and 241-7-16 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions.

Q: What is the significance of the center tap in these transformers?

A: The center tap on the secondary winding provides a reference point for split-rail power supply configurations, enabling symmetric positive and negative voltage outputs from a single secondary winding. Both substitute parts include this feature.

Q: Are both parts currently in active production?

A: Yes. Both the F7-16 (Triad Magnetics) and 241-7-16 (Signal Transformer) are listed as active production parts with current inventory availability.

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