VPP20-250 Equivalent & Substitute Parts Reference

Part Overview

The VPP20-250 is a laminated core power transformer manufactured by Triad Magnetics, rated at 5VA with dual primary and secondary windings. This through-hole mounted component is designed for PC pin termination in applications requiring 115V or 230V primary input with configurable secondary output in parallel (10V, 500mA) or series (20V, 250mA) modes. The part maintains Active product status with full RoHS3 compliance and 4000Vrms isolation rating. Equivalent and substitute parts are identified for applications where inventory availability, packaging preferences, or specific compliance requirements necessitate alternative sourcing.

Substiute Parts

VPP20-250

Triad MagneticsIn Stock: 956VPP20-250 Datasheet

Current PartRFQ

14A-5.0R-20

Signal TransformerIn Stock: 337414A-5.0R-20 Datasheet

DirectRFQ

PL5.0-20-130B

TamuraIn Stock: 1742PL5.0-20-130B Datasheet

DirectRFQ

183F20

Hammond ManufacturingIn Stock: 1115183F20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VPP20-250 are classified based on electrical and mechanical parameter alignment. All identified substitutes maintain identical electrical specifications: 5VA power rating, dual primary windings supporting 115V/230V input, dual secondary windings with parallel 10V/500mA and series 20V/250mA output capability, laminated core construction, through-hole mounting, and PC pin termination.

Direct Equivalents (14A-5.0R-20, PL5.0-20-130B, 183F20) satisfy all core electrical parameters and mechanical mounting requirements. Substitution eligibility is determined by:

• Matching power rating (5VA)
• Identical primary voltage configuration (115V, 230V dual)
• Identical secondary voltage and current ratings (Parallel 10V/500mA, Series 20V/250mA)
• Matching core type (Laminated)
• Matching winding configuration (Dual primary, Dual secondary)
• Matching mounting type (Through Hole)
• Matching termination style (PC Pin)
• Isolation voltage ≥ 3500Vrms

Dimensional variations within the specified ranges and packaging format differences do not affect electrical substitutability. Compliance certifications (RoHS3, REACH) are maintained across all direct equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (14A-5.0R-20, PL5.0-20-130B, 183F20) are electrically and mechanically equivalent to the VPP20-250 for direct replacement applications. Selection among these options is based on the following engineering criteria:

14A-5.0R-20 (Signal Transformer): Maintains identical electrical specifications and 4000Vrms isolation rating. Dimensional tolerance is within acceptable range (41.30mm L vs. 41.28mm L; 36.50mm W vs. 33.32mm W). RoHS3 compliance and REACH Unaffected status match the original part. Highest inventory availability (3312 Pcs) supports supply chain continuity. Box packaging maintains standard handling and storage protocols.

PL5.0-20-130B (Tamura): Meets all electrical requirements with 3500Vrms isolation voltage, which satisfies minimum isolation specifications. Dimensional profile is comparable (41.28mm L, 36.37mm W, 35.60mm H). RoHS compliance is confirmed; REACH status not specified in provided data. Tube packaging may require alternative storage and handling procedures. Inventory availability (1661 Pcs) supports medium-term supply requirements.

183F20 (Hammond Manufacturing): Provides full electrical equivalence with 4000Vrms isolation rating matching the original specification. Dimensional alignment is optimal (41.28mm L, 36.50mm W, 34.93mm H). RoHS3 compliance and REACH Unaffected status are confirmed. Bulk packaging format requires alternative receiving and inventory management procedures. Inventory availability (1082 Pcs) supports standard procurement cycles.

All parts maintain Active product status, ensuring long-term availability and manufacturer support. Selection should prioritize packaging compatibility with existing assembly and storage infrastructure, dimensional fit within PCB layout constraints, and inventory lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can the 14A-5.0R-20 be used as a direct replacement for the VPP20-250 in existing designs?

A: Yes. The 14A-5.0R-20 is electrically identical to the VPP20-250, with matching 5VA power rating, dual primary windings (115V/230V), dual secondary windings (10V parallel, 20V series), and 4000Vrms isolation. Dimensional variations (width 36.50mm vs. 33.32mm) must be verified against PCB layout constraints. Both parts use through-hole PC pin termination and maintain RoHS3 compliance.

Q: What is the significance of the 3500Vrms isolation voltage on the PL5.0-20-130B compared to the 4000Vrms rating of the VPP20-250?

A: The PL5.0-20-130B isolation voltage of 3500Vrms remains above the minimum isolation requirement for this transformer category. Both ratings satisfy standard safety isolation specifications for 5VA laminated core transformers. Selection between 3500Vrms and 4000Vrms depends on application-specific isolation margin requirements and regulatory compliance standards applicable to the end-use circuit.

Q: How do packaging differences (Box, Tube, Bulk) affect substitutability?

A: Packaging format does not affect electrical or mechanical substitutability. Differences impact receiving procedures, storage requirements, and handling protocols. Box packaging (VPP20-250, 14A-5.0R-20) maintains standard component handling. Tube packaging (PL5.0-20-130B) requires alternative storage and may affect automated assembly compatibility. Bulk packaging (183F20) requires manual sorting and inventory management. Verify packaging compatibility with existing procurement and assembly workflows.

Q: Are all substitute parts RoHS3 compliant?

A: The VPP20-250, 14A-5.0R-20, and 183F20 are explicitly RoHS3 compliant. The PL5.0-20-130B is RoHS compliant; specific RoHS3 certification status is not provided in the available data. For applications requiring RoHS3 certification, the 14A-5.0R-20 or 183F20 are recommended.

Q: What inventory considerations should guide part selection?

A: The 14A-5.0R-20 offers the highest inventory availability (3312 Pcs), supporting extended supply chain planning. The PL5.0-20-130B (1661 Pcs) and 183F20 (1082 Pcs) provide adequate inventory for standard procurement cycles. Selection should align with project lead time requirements and supply chain risk mitigation strategies.

Q: Can dimensional variations between substitute parts affect PCB assembly?

A: Yes. The VPP20-250 width is 33.32mm, while the 14A-5.0R-20 and 183F20 are 36.50mm, and the PL5.0-20-130B is 36.37mm. Height variations range from 34.90mm to 35.60mm. Verify that PCB layout accommodates the selected substitute part's footprint, including clearance for adjacent components and thermal management requirements.

Q: Are all substitute parts suitable for the same operating temperature range?

A: Operating temperature specifications are not provided in the available data for any part. Verify temperature ratings with manufacturer datasheets before final part selection, particularly for applications with elevated ambient temperatures or thermal cycling requirements.