14A-30-12 Equivalent & Substitute Parts

Part Overview

The 14A-30-12 is a laminated core power transformer manufactured by Signal Transformer, rated at 30VA with dual primary and secondary windings. The transformer supports input voltages of 115V or 230V and delivers output configurations of parallel 6.3V at 4.8A or series 12.6V at 2.4A. This through-hole mounted component is designed for PC pin termination and maintains 4000Vrms isolation voltage. The part is active in production and RoHS3 compliant, making it suitable for modern electronic equipment requiring isolated AC power conversion.

Equivalent and substitute parts are identified when they maintain identical electrical specifications and mechanical compatibility within the allowed tolerance parameters for laminated core power transformers in this category.

Substiute Parts

14A-30-12

Signal TransformerIn Stock: 85114A-30-12 Datasheet

Current PartRFQ

PL30-12-130B

TamuraIn Stock: 1260PL30-12-130B Datasheet

DirectRFQ

VPP12-2400

Triad MagneticsIn Stock: 2183VPP12-2400 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 14A-30-12 are qualified based on the following critical parameters that determine functional equivalence:

• Power Rating: 30VA (exact match required)
• Primary Voltage: 115V, 230V dual input (exact match required)
• Secondary Voltage: Parallel 6.3V and Series 12.6V configuration (exact match required)
• Output Current Capability: Parallel 4.8A, Series 2.4A (exact match required)
• Core Type: Laminated (exact match required)
• Winding Configuration: Dual primary and dual secondary (exact match required)
• Mounting and Termination: Through hole with PC pin termination (exact match required)
• Isolation Voltage: Minimum 3500Vrms acceptable (4000Vrms preferred)
• Physical Dimensions: Length 66.68–66.70mm, Width 55.50–55.60mm, Height 39.67–41.00mm (within tolerance)

The substitute parts PL30-12-130B (Tamura) and VPP12-2400 (Triad Magnetics) meet all critical electrical and mechanical parameters for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

All three parts—14A-30-12, PL30-12-130B, and VPP12-2400—are active products with current manufacturing status. Selection between these parts is based on compliance requirements and availability:

14A-30-12 (Signal Transformer): ROHS3 compliant with 4000Vrms isolation. Suitable for applications requiring maximum isolation voltage specification.

PL30-12-130B (Tamura): RoHS compliant with 3500Vrms isolation voltage. Meets isolation requirements for standard industrial applications. Height dimension of 41.00mm should be verified against PCB layout constraints.

VPP12-2400 (Triad Magnetics): ROHS3 compliant with 4000Vrms isolation and dimensions closely matching the original 14A-30-12. Recommended for direct replacement in existing designs without layout modification.

All parts carry EAR99 ECCN classification and share identical HTSUS code 8504.31.4035.

Frequently Asked Questions (FAQ)

Q: Can PL30-12-130B be used as a direct replacement for 14A-30-12?

A: Yes. PL30-12-130B meets all critical electrical parameters. The isolation voltage is 3500Vrms versus 4000Vrms on the original part. Height dimension is 41.00mm compared to 39.70mm; verify clearance in your PCB layout.

Q: What is the difference between parallel and series secondary configurations?

A: The transformer has dual secondary windings. In parallel configuration, both windings operate together to deliver 6.3V at 4.8A. In series configuration, the windings are connected in series to deliver 12.6V at 2.4A. Both configurations are available on all three parts.

Q: Are all three parts RoHS compliant?

A: Yes. 14A-30-12 and VPP12-2400 are ROHS3 compliant. PL30-12-130B is RoHS compliant. All meet environmental compliance requirements for modern electronics manufacturing.

Q: What are the physical dimension tolerances for substitution?

A: Length ranges from 66.68mm to 66.70mm, width from 55.50mm to 55.60mm, and height from 39.67mm to 41.00mm. Verify that the maximum height of 41.00mm (PL30-12-130B) does not exceed your PCB clearance requirements.

Q: Is isolation voltage critical for my application?

A: Isolation voltage determines the maximum voltage differential that can be safely applied between primary and secondary circuits. The 14A-30-12 and VPP12-2400 provide 4000Vrms isolation, while PL30-12-130B provides 3500Vrms. Select based on your circuit isolation requirements.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that physical dimensions and isolation voltage specifications are verified against your design requirements. All three parts are active products with identical electrical ratings and mounting configurations.