DST4-36B26 Equivalent & Substitute Parts

Part Overview

The DST4-36B26 is a laminated core power transformer manufactured by Pulse Electronics, rated at 6VA with dual primary and secondary windings. This through-hole mounted component is designed for applications requiring 115V or 230V primary input with configurable secondary output of 18V (parallel) or 36V (series). The part is currently active in production with 845 units in stock inventory.

Equivalent parts are identified when components share identical electrical specifications, mechanical compatibility, and regulatory compliance, enabling direct substitution in circuit designs without functional compromise.

Substiute Parts

DST4-36B26

Pulse ElectronicsIn Stock: 925DST4-36B26 Datasheet

Current PartRFQ

FS36-170

Triad MagneticsIn Stock: 1290FS36-170 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The FS36-170 manufactured by Triad Magnetics qualifies as a direct equivalent to the DST4-36B26 based on the following critical parameters:

• Identical power rating: 6VA
• Matching primary voltage configuration: 115V, 230V dual input
• Matching secondary voltage configuration: 18V parallel, 36V series
• Identical output current specifications: 340mA parallel, 170mA series
• Matching winding configuration: Dual primary, dual secondary
• Identical core type: Laminated
• Matching mounting and termination: Through hole with PC pin termination
• Equivalent isolation voltage: 2500Vrms
• Compatible physical dimensions within manufacturing tolerance
• Equivalent regulatory compliance: RoHS and REACH standards

Parameter Comparison

Engineering Selection Recommendations

Both the DST4-36B26 and FS36-170 are active production components with equivalent electrical and mechanical specifications. Selection between these parts should be based on:

• Availability and lead time requirements
• Procurement source and cost considerations
• Compliance certification requirements (both meet RoHS and REACH standards)
• PCB layout constraints (physical dimensions are within 0.12mm tolerance across all axes)
• Series designation preference (Split Bobbin versus Split Pack™ series)

The FS36-170 offers higher inventory availability (1216 units versus 845 units) and ROHS3 certification, providing additional regulatory assurance for new designs.

Frequently Asked Questions (FAQ)

Q: Can the FS36-170 replace the DST4-36B26 in existing designs?

A: Yes. Both transformers share identical electrical specifications, mounting type, termination style, and physical dimensions within manufacturing tolerance. Direct substitution is supported without circuit modification.

Q: Are there differences in isolation voltage between these parts?

A: No. Both components provide 2500Vrms isolation voltage, meeting equivalent safety and regulatory requirements.

Q: How do the physical dimensions compare?

A: Dimensions are equivalent within standard manufacturing tolerance. Length differs by 0.12mm (41.40mm vs 41.28mm), and width/height differ by 0.05mm. These variations are within acceptable PCB layout tolerances for through-hole mounting.

Q: What is the difference between RoHS and ROHS3 compliance?

A: Both certifications indicate RoHS compliance. ROHS3 represents the current revision of the RoHS directive. Both parts meet equivalent environmental and hazardous substance restrictions.

Q: Are the winding configurations identical?

A: Yes. Both transformers feature dual primary windings and dual secondary windings with identical voltage and current ratings in parallel and series configurations.

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

A: Yes. Both parts support identical parallel (18V, 340mA) and series (36V, 170mA) output configurations.