LP230-50B22 Equivalent & Substitute Parts

Part Overview

The LP230-50B22 is a 12VA semi-toroidal power transformer manufactured by Pulse Electronics, designed for through-hole mounting applications. This component features dual primary and secondary windings with configurable output voltage (parallel 115V or series 230V) and corresponding current ratings. The transformer is RoHS compliant, rated for 1500Vrms isolation, and maintains active product status with 1161 units in current inventory. Equivalent parts are identified when identical electrical performance and mechanical compatibility can be achieved through alternative manufacturers while maintaining the same functional specifications.

Key Parameters

Parameter	Value
Power Rating	12VA
Type	Semi-Toroidal
Primary Winding Configuration	Dual
Secondary Winding Configuration	Dual
Output Voltage (Parallel)	115V
Output Voltage (Series)	230V
Output Current - Parallel	100mA
Output Current - Series	50mA
Mounting Type	Through Hole
Termination Style	PC Pin
Isolation Voltage	1500Vrms
Dimensions (L x W)	64.60mm x 50.80mm
Height - Seated (Max)	27.05mm
Weight	0.688 lb (312.07 g)
RoHS Status	RoHS Compliant
Isolation Voltage Rating	1500Vrms

Substitute Part Grouping Explanation

Substitution of the LP230-50B22 is determined by strict equivalence across the following critical parameters:

Power Rating: 12VA (exact match required)
Transformer Type: Semi-Toroidal configuration
Winding Configuration: Dual primary and dual secondary windings
Output Voltage Options: Parallel 115V and series 230V capability
Current Ratings: Parallel 100mA and series 50mA
Mounting and Termination: Through-hole mounting with PC pin termination
Isolation Voltage: 1500Vrms minimum
Physical Dimensions: 64.60mm L x 50.80mm W footprint compatibility
Regulatory Compliance: RoHS compliance required

The LP-230-50 manufactured by Signal Transformer meets all specified electrical and mechanical parameters, making it a direct equivalent for applications requiring identical performance characteristics.

Parameter Comparison

Parameter	LP230-50B22 (Pulse Electronics)	LP-230-50 (Signal Transformer)	Match Status
Power Rating	12VA	12VA	Equivalent
Type	Semi-Toroidal	Semi-Toroidal	Equivalent
Primary Winding(s)	Dual	Dual	Equivalent
Secondary Winding(s)	Dual	Dual	Equivalent
Output Voltage - Parallel	115V	115V	Equivalent
Output Voltage - Series	230V	230V	Equivalent
Output Current - Parallel	100mA	100mA	Equivalent
Output Current - Series	50mA	50mA	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pin	PC Pin	Equivalent
Dimensions (L x W)	64.60mm x 50.80mm	64.60mm x 50.80mm	Equivalent
Height - Seated (Max)	27.05mm	27.10mm	Compatible
Isolation Voltage	1500Vrms	1500Vrms	Equivalent
Weight	0.688 lb (312.07 g)	0.688 lb (312.07 g)	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both the LP230-50B22 and LP-230-50 maintain active product status and meet current regulatory requirements. The LP230-50B22 carries RoHS compliance certification, while the LP-230-50 carries ROHS3 compliance, both satisfying modern environmental standards. The LP-230-50 demonstrates equivalent electrical performance across all specified parameters with identical power rating, winding configuration, voltage/current ratings, and isolation voltage. Physical compatibility is confirmed through matching footprint dimensions and through-hole termination. The maximum seated height difference of 0.05mm (27.10mm versus 27.05mm) remains within typical PCB design tolerances for through-hole applications. Both components are suitable for direct substitution in applications requiring 12VA semi-toroidal transformer functionality with dual winding configuration.

Frequently Asked Questions (FAQ)

Q: What determines if a transformer can substitute for the LP230-50B22?

A: Direct substitution requires matching power rating (12VA), semi-toroidal type, dual primary and secondary winding configuration, identical output voltage options (parallel 115V and series 230V), matching current ratings (parallel 100mA and series 50mA), through-hole mounting with PC pin termination, 1500Vrms isolation voltage, and compatible physical dimensions (64.60mm x 50.80mm footprint).

Q: Is the LP-230-50 mechanically compatible with the LP230-50B22 footprint?

A: Yes. Both transformers share identical length (64.60mm) and width (50.80mm) dimensions. The maximum seated height of the LP-230-50 is 27.10mm compared to 27.05mm for the LP230-50B22, a difference of 0.05mm that remains within standard PCB design tolerances for through-hole applications.

Q: Are there compliance differences between these two parts?

A: The LP230-50B22 carries RoHS compliance certification, while the LP-230-50 carries ROHS3 compliance. Both certifications satisfy current environmental and regulatory requirements for electronic components.

Q: Can the LP-230-50 handle the same voltage and current configurations as the LP230-50B22?

A: Yes. Both transformers support identical dual winding configurations with parallel 115V at 100mA output and series 230V at 50mA output, ensuring functional equivalence across all operating modes.

Q: What is the packaging difference between these parts?

A: The LP230-50B22 is supplied in standard packaging, while the LP-230-50 is supplied in box packaging. This difference does not affect component performance or compatibility.

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