FS48-023 Equivalent & Substitute Parts Reference

Part Overview

The FS48-023 is a laminated core power transformer manufactured by Triad Magnetics, rated at 1.1VA with dual primary and secondary windings. This through-hole mounted component operates at 115V or 230V primary voltage with configurable secondary output of 24V (parallel) or 48V (series). The part is currently active in production with 864 units in stock inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility within the allowed parameter specifications.

Key Parameters

Parameter	Value
Power Rating (Max)	1.1VA
Primary Voltage Options	115V, 230V
Secondary Voltage (Parallel)	24V
Secondary Voltage (Series)	48V
Output Current - Parallel	46mA (Max)
Output Current - Series	23mA (Max)
Core Type	Laminated
Primary Windings	Dual
Secondary Windings	Dual
Mounting Type	Through Hole
Termination Style	PC Pin
Isolation Voltage	2500Vrms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FS48-023 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Identical power rating: 1.1VA
Matching primary voltage configuration: 115V, 230V dual selection
Matching secondary voltage outputs: 24V (parallel) and 48V (series)
Matching maximum output current: 46mA (parallel), 23mA (series)
Equivalent isolation voltage: 2500Vrms
Identical winding configuration: Dual primary, dual secondary

Mechanical Equivalence Requirements:

Laminated core construction
Through-hole mounting type
PC pin termination style
Compatible footprint dimensions

Compliance Requirements:

ROHS3 compliance maintained
REACH unaffected status
Active product status

The Hammond Manufacturing 162D48 meets all electrical and core mechanical requirements. Physical height differs (33.32mm vs. 23.80mm seated height), which may affect PCB layout clearance but does not alter electrical substitutability.

Parameter Comparison

Parameter	FS48-023 (Triad Magnetics)	162D48 (Hammond Manufacturing)	Match Status
Power Rating	1.1VA	1.1VA	Equivalent
Primary Voltage	115V, 230V	115V, 230V	Equivalent
Secondary Voltage (Parallel)	24V	24V	Equivalent
Secondary Voltage (Series)	48V	48V	Equivalent
Output Current - Parallel (Max)	46mA	46mA	Equivalent
Output Current - Series (Max)	23mA	23mA	Equivalent
Core Type	Laminated	Laminated	Equivalent
Primary Windings	Dual	Dual	Equivalent
Secondary Windings	Dual	Dual	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pin	PC Pin	Equivalent
Isolation Voltage	2500Vrms	2500Vrms	Equivalent
Height - Seated (Max)	23.80mm	33.32mm	Different
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Part Selection (FS48-023): The FS48-023 is the preferred selection when PCB height constraints are critical. This part maintains active production status with 864 units in current inventory. ROHS3 compliance and REACH unaffected status confirm regulatory alignment for current applications.

Substitute Part Selection (162D48): The Hammond Manufacturing 162D48 provides electrical and functional equivalence with identical power delivery, voltage configuration, and isolation specifications. This substitute is suitable when primary part availability is constrained. The increased seated height (33.32mm vs. 23.80mm) requires verification of available PCB clearance. Both parts maintain active production status and equivalent compliance certifications.

Inventory Consideration: The FS48-023 maintains higher inventory availability (864 units) compared to the 162D48 (730 units). Selection should account for project timeline and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can the 162D48 be used as a direct replacement for the FS48-023?

A: The 162D48 provides electrical equivalence across all specified parameters: identical 1.1VA power rating, matching 115V/230V primary configuration, equivalent 24V/48V secondary outputs, and matching 46mA/23mA current ratings. The primary design consideration is the increased seated height (33.32mm vs. 23.80mm), which requires PCB layout verification for clearance compatibility.

Q: Are the voltage isolation specifications identical?

A: Yes. Both the FS48-023 and 162D48 provide 2500Vrms isolation voltage, meeting equivalent safety and regulatory requirements.

Q: What is the difference in packaging between these parts?

A: The FS48-023 is supplied in box packaging, while the 162D48 is supplied in bulk packaging. This affects handling and inventory management but does not alter electrical or mechanical performance.

Q: Do both parts meet current RoHS and REACH requirements?

A: Yes. Both the FS48-023 and 162D48 are ROHS3 compliant and REACH unaffected, confirming regulatory compliance for current applications.

Q: Which part should be selected for new designs?

A: Selection should be based on PCB layout constraints and supply availability. The FS48-023 is preferred when height clearance is limited. The 162D48 provides equivalent electrical performance when the additional height is accommodated in the design.

Q: Are the winding configurations identical?

A: Yes. Both parts feature dual primary windings and dual secondary windings with no center tap, providing identical configuration flexibility for 115V/230V primary selection and 24V/48V secondary output options.

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