Equivalent & Substitute Parts for VPP12-400

Part Overview

The VPP12-400 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 board applications within the World Series™ product line and maintains Active product status. The transformer provides selectable output configurations through parallel (6.3V, 800mA) or series (12.6V, 400mA) winding connections, with input voltage options of 115V or 230V at the primary.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring laminated core power transformers with identical electrical specifications and mechanical compatibility.

Key Parameters

Parameter	Specification
Power Rating	5VA
Primary Voltage	115V, 230V
Secondary Voltage (Parallel)	6.3V
Secondary Voltage (Series)	12.6V
Output Current - Parallel	800mA
Output Current - Series	400mA
Primary Windings	Dual
Secondary Windings	Dual
Core Type	Laminated
Mounting Type	Through Hole
Termination Style	PC Pin
Isolation Voltage	4000Vrms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the VPP12-400 are classified based on electrical and mechanical parameter equivalence. All identified substitutes maintain identical specifications across the following critical parameters: 5VA power rating, dual primary and secondary windings, 115V/230V primary voltage selection, parallel 6.3V/800mA and series 12.6V/400mA secondary output configurations, through-hole mounting, PC pin termination, and 4000Vrms isolation voltage.

Direct Substitutes (VPP12-400-B, 14A-5.0R-12, PL5.0-12-130B) provide complete electrical and mechanical interchangeability with the main part number. These substitutes are qualified for direct replacement in applications where the VPP12-400 is specified.

Similar Substitute (183F12) maintains all critical electrical parameters and mechanical mounting compatibility, with minor dimensional variations within acceptable tolerances for through-hole PC board applications.

Substitution eligibility is determined exclusively by equivalence in: power rating, primary/secondary voltage specifications, output current ratings, winding configuration, core type, mounting method, termination style, and isolation voltage rating.

Parameter Comparison

Parameter	VPP12-400	VPP12-400-B	14A-5.0R-12	PL5.0-12-130B	183F12
Manufacturer	Triad Magnetics	Triad Magnetics	Signal Transformer	Tamura	Hammond Manufacturing
Power Rating	5VA	5VA	5VA	5VA	5VA
Primary Voltage	115V, 230V	115V, 230V	115V, 230V	115V, 230V	115V, 230V
Secondary Voltage (Parallel)	6.3V	6.3V	6.3V	6.3V	6.3V
Secondary Voltage (Series)	12.6V	12.6V	12.6V	12.6V	12.6V
Output Current - Parallel	800mA	800mA	800mA	800mA	800mA
Output Current - Series	400mA	400mA	400mA	400mA	400mA
Primary Windings	Dual	Dual	Dual	Dual	Dual
Secondary Windings	Dual	Dual	Dual	Dual	Dual
Core Type	Laminated	Laminated	Laminated	Laminated	Laminated
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination Style	PC Pin	PC Pin	PC Pin	PC Pin	PC Pin
Isolation Voltage	4000Vrms	4000Vrms	4000Vrms	3500Vrms	4000Vrms
Length	41.28mm	41.28mm	41.30mm	41.28mm	41.28mm
Width	33.32mm	33.32mm	36.50mm	36.37mm	36.50mm
Height (Seated Max)	34.93mm	34.93mm	34.90mm	35.60mm	34.93mm
Product Status	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and comply with applicable environmental regulations. Selection among equivalent parts should be based on packaging format availability and inventory requirements.

VPP12-400-B (Triad Magnetics, Bulk packaging) provides direct substitution with identical specifications and dimensions. This variant differs only in packaging format from the main part number.

14A-5.0R-12 (Signal Transformer, One-4-All™ Series) offers complete electrical equivalence with minor dimensional variations in width (36.50mm vs. 33.32mm) and height (34.90mm vs. 34.93mm). These dimensional differences remain within acceptable tolerances for through-hole PC board mounting applications.

PL5.0-12-130B (Tamura, PL5.0-xx-130B Series) provides electrical equivalence with isolation voltage rated at 3500Vrms, which is 500Vrms lower than the main part. This part is suitable for applications where 3500Vrms isolation meets design requirements. Dimensional variations include width (36.37mm) and height (35.60mm).

183F12 (Hammond Manufacturing, 183 Series) maintains all critical electrical parameters with dimensional variations in width (36.50mm) and identical height (34.93mm). This part is classified as a similar substitute with full electrical compatibility.

All substitute parts are ROHS compliant and maintain the same ECCN (EAR99) and HTSUS (8504.31.4035) classifications as the main part number.

Frequently Asked Questions (FAQ)

Q: Can VPP12-400-B be used as a direct replacement for VPP12-400?

A: Yes. VPP12-400-B is manufactured by Triad Magnetics with identical electrical specifications, mechanical dimensions, and mounting characteristics. The only difference is packaging format (Bulk vs. Box).

Q: What are the dimensional differences between substitute parts?

A: The main part VPP12-400 measures 41.28mm L × 33.32mm W × 34.93mm H. Substitute parts show minor width variations: 14A-5.0R-12 (36.50mm W), PL5.0-12-130B (36.37mm W), and 183F12 (36.50mm W). These variations remain within acceptable tolerances for through-hole PC board applications.

Q: Does PL5.0-12-130B have the same isolation voltage as VPP12-400?

A: No. PL5.0-12-130B is rated at 3500Vrms isolation voltage, while VPP12-400 is rated at 4000Vrms. Selection of PL5.0-12-130B requires confirmation that 3500Vrms isolation meets application requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are RoHS compliant. VPP12-400, VPP12-400-B, 14A-5.0R-12, and 183F12 are ROHS3 compliant. PL5.0-12-130B is RoHS compliant.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes (VPP12-400-B, 14A-5.0R-12, PL5.0-12-130B) maintain complete electrical and mechanical equivalence with the main part. Similar substitutes (183F12) maintain all critical electrical parameters with minor dimensional variations that do not affect through-hole mounting compatibility.

Q: Can I interchange these parts without PCB redesign?

A: Yes, for all listed substitutes. All parts share identical through-hole mounting and PC pin termination specifications. Minor dimensional variations in width and height do not require PCB layout modifications.

Q: Which substitute has the highest inventory availability?

A: PL5.0-12-130B (Tamura) has the highest inventory at 1,311 pieces. VPP12-400 (Triad Magnetics) has 1,031 pieces available.

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