Tamura 3FL12-475 Equivalent & Substitute Parts

Part Overview

The Tamura 3FL12-475 is an active, laminated core power transformer rated for 6VA with dual primary and secondary windings. This through-hole mounted component provides selectable output configurations: 6.3V at 950mA (parallel) or 12.6V at 475mA (series). The transformer accepts dual primary voltages (115V or 230V) and features PC pin termination suitable for printed circuit board assembly.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across all critical parameters. This reference enables component selection based on availability, packaging preferences, and compliance requirements.

Key Parameters

Parameter	Value
Power Rating	6VA
Primary Voltage Options	115V, 230V
Secondary Voltage (Parallel)	6.3V
Secondary Voltage (Series)	12.6V
Output Current - Parallel	950mA
Output Current - Series	475mA
Core Type	Laminated
Primary Windings	Dual
Secondary Windings	Dual
Center Tap	No
Mounting Type	Through Hole
Termination Style	PC Pin
Isolation Voltage	1500Vrms (Main Part)
RoHS Compliance	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Tamura 3FL12-475 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Identical power rating: 6VA
Matching primary voltage inputs: 115V and 230V dual configuration
Matching secondary voltage outputs: 6.3V (parallel) and 12.6V (series)
Matching output current specifications: 950mA (parallel) and 475mA (series)
Laminated core construction
Dual primary and dual secondary winding configuration
No center tap requirement

Mechanical Equivalence Requirements:

Through-hole mounting type
PC pin termination style
Dimensional compatibility within manufacturing tolerances

Compliance Requirements:

ROHS3 compliance maintained
Active product status

The Triad Magnetics FP12-475 meets all electrical and mechanical equivalence criteria and maintains required compliance standards.

Parameter Comparison

Parameter	Tamura 3FL12-475	Triad Magnetics FP12-475	Match Status
Power Rating	6VA	6VA	Equivalent
Primary Voltage	115V, 230V	115V, 230V	Equivalent
Secondary Voltage (Parallel)	6.3V	6.3V	Equivalent
Secondary Voltage (Series)	12.6V	12.6V	Equivalent
Output Current - Parallel	950mA	950mA	Equivalent
Output Current - Series	475mA	475mA	Equivalent
Core Type	Laminated	Laminated	Equivalent
Primary Windings	Dual	Dual	Equivalent
Secondary Windings	Dual	Dual	Equivalent
Center Tap	No	No	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pin	PC Pin	Equivalent
Length	47.60mm	47.63mm	Compatible
Width	39.60mm	39.67mm	Compatible
Height (Seated Max)	21.60mm	22.22mm	Compatible
Isolation Voltage	1500Vrms	2000Vrms	Substitute Exceeds
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Tamura 3FL12-475 Selection Criteria:

Primary choice when Tamura series continuity is required
Active product status with established supply chain
ROHS3 compliance confirmed
Bulk packaging available with 1017 units in stock

Triad Magnetics FP12-475 Selection Criteria:

Direct electrical and mechanical equivalent
Active product status with 909 units in stock
ROHS3 compliance confirmed with REACH unaffected designation
Isolation voltage rating of 2000Vrms exceeds primary part specification
Box packaging format available
Flat Pack™ series designation indicates optimized form factor

Both parts satisfy identical electrical performance requirements and maintain compliance certifications. Selection between these parts is determined by availability, packaging format preference, and supply chain considerations. The Triad Magnetics FP12-475 provides enhanced isolation voltage performance at equivalent cost and form factor.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics FP12-475 directly replace the Tamura 3FL12-475 in existing designs?

A: Yes. Both transformers provide identical electrical specifications across all primary and secondary voltage and current parameters. Mechanical dimensions are compatible within standard manufacturing tolerances. Through-hole mounting and PC pin termination are identical. Both maintain ROHS3 compliance.

Q: What is the significance of the higher isolation voltage in the FP12-475?

A: The Triad Magnetics FP12-475 provides 2000Vrms isolation compared to 1500Vrms in the Tamura 3FL12-475. This represents enhanced dielectric performance and does not create incompatibility. Applications requiring 1500Vrms isolation operate within the FP12-475 specification.

Q: Are there dimensional differences that affect PCB layout?

A: Dimensional differences are minimal and within standard manufacturing tolerances. Length differs by 0.03mm, width by 0.07mm, and height by 0.62mm. These variations are negligible for through-hole PCB mounting and do not require layout modification.

Q: What packaging formats are available?

A: The Tamura 3FL12-475 is supplied in bulk packaging. The Triad Magnetics FP12-475 is supplied in box packaging. Selection depends on procurement and inventory management requirements.

Q: Are both parts currently in active production?

A: Yes. Both the Tamura 3FL12-475 and Triad Magnetics FP12-475 maintain active product status with confirmed inventory availability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both transformers are ROHS3 compliant. The Triad Magnetics FP12-475 additionally carries REACH unaffected designation. Both are classified under ECCN EAR99 and HTSUS 8504.31.4035.

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