Pulse Electronics 14A-20-16B16 Equivalent & Substitute Parts

Part Overview

The Pulse Electronics 14A-20-16B16 is a 20VA laminated core power transformer designed for through-hole mounting in PC applications. This transformer features dual primary windings supporting 115V and 230V input, with configurable secondary output of 8V parallel or 16V series at maximum currents of 2.5A and 1.25A respectively. The component is actively manufactured and maintains RoHS compliance, making it suitable for modern electronic equipment requiring isolated power conversion in compact form factors.

Equivalent parts are identified when alternative manufacturers offer transformers with matching electrical specifications, mechanical dimensions, and mounting characteristics that enable direct substitution without circuit redesign.

Key Parameters

Parameter	Specification
Power Rating	20VA
Primary Voltage	115V, 230V (Dual Winding)
Secondary Voltage	Parallel 8V, Series 16V
Secondary Current (Max)	Parallel 2.5A, Series 1.25A
Core Type	Laminated
Mounting Type	Through Hole
Termination Style	PC Pin
Dimensions (L × W × H)	57.15mm × 47.63mm × 41.28mm
Weight	0.9 lb (408.23 g)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 14A-20-16B16 is determined by strict equivalence across the following critical parameters:

Power Rating: 20VA exact match
Primary Voltage Configuration: Dual winding supporting both 115V and 230V
Secondary Voltage Output: Parallel 8V and Series 16V capability
Secondary Current Capacity: Parallel 2.5A and Series 1.25A minimum
Core Construction: Laminated core type
Mounting and Termination: Through-hole mounting with PC pin termination
Physical Envelope: Dimensions within specified length, width, and height tolerances
Regulatory Compliance: RoHS compliance status

The Triad Magnetics VPP16-1250 meets all substitution criteria across these parameters, enabling direct replacement in applications requiring the 14A-20-16B16.

Parameter Comparison

Parameter	Pulse Electronics 14A-20-16B16	Triad Magnetics VPP16-1250	Match Status
Manufacturer	Pulse Electronics	Triad Magnetics	Different Manufacturer
Power Rating	20VA	20VA	Equivalent
Primary Voltage	115V, 230V	115V, 230V	Equivalent
Secondary Voltage	Parallel 8V, Series 16V	Parallel 8V, Series 16V	Equivalent
Secondary Current (Max)	Parallel 2.5A, Series 1.25A	Parallel 2.5A, Series 1.25A	Equivalent
Core Type	Laminated	Laminated	Equivalent
Primary Winding(s)	Dual	Dual	Equivalent
Secondary Winding(s)	Single, Multiple Taps	Dual	Functionally Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pin	PC Pin	Equivalent
Dimensions (L × W × H)	57.15mm × 47.63mm × 41.28mm	57.15mm × 47.63mm × 41.28mm	Equivalent
Weight	0.9 lb (408.23 g)	0.9 lb (408.23 g)	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS Code	8504.31.4035	8504.31.4035	Equivalent

Engineering Selection Recommendations

Both the Pulse Electronics 14A-20-16B16 and Triad Magnetics VPP16-1250 are active products with current manufacturing status. Selection between these transformers should be based on:

Regulatory Compliance: Both components satisfy RoHS and REACH requirements. The Triad Magnetics VPP16-1250 carries ROHS3 certification, representing the most current RoHS standard revision.

Electrical Specifications: Complete equivalence exists across all primary and secondary voltage configurations, current ratings, and power capacity. Both transformers support identical dual primary winding architecture and deliver equivalent secondary output characteristics.

Physical Integration: Identical dimensions and through-hole PC pin termination ensure mechanical and electrical compatibility within existing PCB layouts without modification.

Availability and Supply Chain: Component selection may be influenced by inventory levels and lead times from respective manufacturers or authorized distributors.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics VPP16-1250 directly replace the Pulse Electronics 14A-20-16B16 without PCB modification?

A: Yes. Both transformers share identical dimensions (57.15mm × 47.63mm × 41.28mm), through-hole mounting configuration, and PC pin termination. No PCB layout changes are required for substitution.

Q: Are the electrical outputs identical between these two transformers?

A: Yes. Both transformers provide 20VA power capacity with dual primary windings supporting 115V and 230V input. Secondary outputs are configured identically: 8V at 2.5A parallel or 16V at 1.25A series.

Q: What is the difference between "Single, Multiple Taps" and "Dual" secondary winding configurations?

A: Both configurations deliver the required parallel and series voltage outputs. The functional electrical performance is equivalent for the specified output voltages and currents.

Q: Do both transformers meet current regulatory standards?

A: Yes. Both components are RoHS compliant and REACH unaffected. The Triad Magnetics VPP16-1250 carries ROHS3 certification, the current revision of the RoHS standard.

Q: What packaging differences exist between these parts?

A: The Pulse Electronics 14A-20-16B16 is supplied in standard packaging, while the Triad Magnetics VPP16-1250 is packaged in boxes. This distinction affects logistics and storage but does not impact component performance or compatibility.

Q: Are isolation voltage specifications provided for both transformers?

A: Isolation voltage is specified for the Triad Magnetics VPP16-1250 at 4000Vrms. This parameter is not provided for the Pulse Electronics 14A-20-16B16 in the available documentation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message