Equivalent & Substitute Parts for 3FD-236

Part Overview

The 3FD-236 is a laminated core power transformer manufactured by Tamura, rated at 1.1VA with dual primary and secondary windings. This through-hole mounted component operates at 115V or 230V primary voltage with configurable secondary output of 18V parallel or 36V series, delivering maximum output currents of 60mA parallel or 30mA series respectively. The part maintains active product status and is RoHS compliant with 2500Vrms isolation voltage rating.

Equivalent substitute parts are identified when components share identical electrical specifications, mechanical compatibility parameters, and compliance certifications. Substitute identification becomes necessary for supply chain continuity, inventory optimization, and design flexibility across multiple qualified manufacturers.

Substiute Parts

3FD-236

TamuraIn Stock: 7563FD-236 Datasheet

Current PartRFQ

DST-2-36

Signal TransformerIn Stock: 1050DST-2-36 Datasheet

DirectRFQ

FS36-030

Triad MagneticsIn Stock: 840FS36-030 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3FD-236 are qualified based on strict electrical and mechanical parameter matching. The substitution logic requires equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Identical power rating of 1.1VA
• Matching primary voltage inputs: 115V and 230V
• Matching secondary voltage outputs: Parallel 18V and Series 36V configurations
• Matching maximum output currents: Parallel 60mA and Series 30mA
• Identical dual primary and dual secondary winding configurations
• Matching isolation voltage of 2500Vrms
• Identical core type: Laminated

Mechanical Equivalence Criteria:

• Through-hole mounting type
• PC pin termination style
• Compatible physical dimensions within manufacturing tolerances
• Seated height compatibility

Compliance Equivalence Criteria:

• Active product status
• RoHS compliance certification

Parts DST-2-36 (Signal Transformer) and FS36-030 (Triad Magnetics) meet all substitution criteria for the 3FD-236.

Parameter Comparison

Engineering Selection Recommendations

All three parts—3FD-236, DST-2-36, and FS36-030—maintain active product status and satisfy RoHS compliance requirements. Selection between these equivalents is determined by availability, packaging format, and dimensional constraints within the target application.

3FD-236 (Tamura): Supplied in tube packaging with 706 units in stock. Dimensions: 35.56mm L × 31.00mm W × 25.40mm H (seated). Moisture sensitivity level 1 (unlimited).

DST-2-36 (Signal Transformer): Supplied in box packaging with 995 units in stock. Dimensions: 34.90mm L × 28.60mm W × 24.60mm H (seated). Weight: 0.17 lb (77.11 g). ROHS3 compliant with REACH unaffected status.

FS36-030 (Triad Magnetics): Supplied in box packaging with 806 units in stock. Dimensions: 34.93mm L × 28.56mm W × 23.80mm H (seated). Weight: 0.17 lb (77.11 g). ROHS3 compliant with REACH unaffected status. Series designation: Split Pack™.

Physical dimensions of DST-2-36 and FS36-030 are more compact than the 3FD-236, with reduced length, width, and seated height. Applications with space constraints may benefit from these alternatives. All parts share identical electrical performance and isolation characteristics.

Frequently Asked Questions (FAQ)

Q: Can DST-2-36 directly replace 3FD-236 in existing designs?

A: Yes. DST-2-36 provides electrical equivalence across all specified parameters: 1.1VA power rating, dual 115V/230V primary inputs, dual 18V parallel or 36V series secondary outputs, 60mA/30mA maximum currents, and 2500Vrms isolation. Both use through-hole PC pin termination. Physical dimensions differ slightly; verify PCB layout compatibility before substitution.

Q: What are the dimensional differences between these parts?

A: The 3FD-236 measures 35.56mm L × 31.00mm W × 25.40mm H (seated). The DST-2-36 measures 34.90mm L × 28.60mm W × 24.60mm H (seated). The FS36-030 measures 34.93mm L × 28.56mm W × 23.80mm H (seated). DST-2-36 and FS36-030 are more compact in all dimensions.

Q: Are packaging differences significant for component selection?

A: The 3FD-236 is supplied in tube packaging, while DST-2-36 and FS36-030 are supplied in box packaging. Packaging format affects handling, storage, and automated assembly processes. Verify compatibility with receiving and assembly procedures.

Q: Do all three parts meet the same compliance standards?

A: The 3FD-236 is RoHS compliant. DST-2-36 and FS36-030 are ROHS3 compliant, representing a more recent compliance standard. All three parts carry EAR99 ECCN classification and 8504.31.4035 HTSUS code. DST-2-36 and FS36-030 include REACH unaffected status documentation.

Q: What is the moisture sensitivity level difference?

A: The 3FD-236 specifies Moisture Sensitivity Level 1 (unlimited), indicating no moisture sensitivity constraints. DST-2-36 and FS36-030 list moisture sensitivity as not applicable, consistent with transformer component classification.

Q: Can these parts be used interchangeably in parallel or series secondary configurations?

A: Yes. All three parts support identical secondary configurations: 18V parallel output at 60mA maximum, or 36V series output at 30mA maximum. Winding configuration is dual for both primary and secondary on all parts, enabling flexible voltage and current selection.

Q: What inventory levels are available for each part?

A: 3FD-236 has 706 units in stock. DST-2-36 has 995 units in stock. FS36-030 has 806 units in stock. Inventory levels support component selection based on supply chain requirements and lead time considerations.