Equivalent & Substitute Parts for Signal Transformer 241-3-12

Part Overview

The Signal Transformer 241-3-12 is a laminated core power transformer rated at 2.4VA with a 115V primary and 12.6V secondary output. This chassis mount transformer is designed for applications requiring isolated low-voltage power conversion with a maximum output current of 200mA. The part is currently active in production and maintains full RoHS3 compliance. Substitute parts may be required due to inventory constraints, lead time considerations, or application-specific packaging preferences while maintaining equivalent electrical performance.

Substiute Parts

241-3-12

Signal TransformerIn Stock: 804241-3-12 Datasheet

Current PartRFQ

186B12

Hammond ManufacturingIn Stock: 927186B12 Datasheet

DirectRFQ

F3-12

Triad MagneticsIn Stock: 1265F3-12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 241-3-12 are classified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Voltage - Primary: 115V input capability
• Voltage - Secondary: 12.6V output
• Power Rating: 2.4VA minimum
• Current - Output: 200mA minimum
• Mounting Type: Chassis Mount
• Core Type: Laminated Core
• Termination Style: Solder and Quick Connect compatible
• Voltage - Isolation: 2000Vrms minimum
• RoHS3 Compliance: Required

The 241-3-12 has two qualified substitutes: the Hammond Manufacturing 186B12 and the Triad Magnetics F3-12. Both parts meet or exceed the electrical requirements of the original part while maintaining chassis mount configuration and isolation voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

All three transformers maintain active product status and full RoHS3 compliance, ensuring regulatory alignment for current applications.

The Triad Magnetics F3-12 provides the closest electrical and dimensional match to the 241-3-12, with identical power rating, output current, primary voltage, and isolation voltage specifications. This part is suitable for direct substitution in applications where the original 241-3-12 is unavailable.

The Hammond Manufacturing 186B12 offers higher power capacity (6.3VA) and output current (500mA) with dual primary winding configuration supporting both 115V and 230V inputs. This part is suitable for applications requiring higher current delivery or dual-voltage input flexibility, though it exceeds the electrical requirements of the 241-3-12 specification. Physical dimensions are larger, requiring verification of chassis mount clearance.

Frequently Asked Questions (FAQ)

Q: Can the Hammond Manufacturing 186B12 directly replace the 241-3-12?

A: The 186B12 meets all minimum electrical requirements for the 241-3-12 application, including secondary voltage, isolation voltage, and mounting type. However, the 186B12 has larger physical dimensions (60.20mm L x 41.28mm W versus 52.60mm L x 29.60mm W) and greater height (34.80mm versus 31.20mm). Chassis mount clearance must be verified before substitution.

Q: What is the primary difference between the F3-12 and 241-3-12?

A: The F3-12 and 241-3-12 are electrically equivalent, with identical power ratings, output current, primary voltage, and isolation voltage. The F3-12 has slightly smaller length (41.28mm versus 52.60mm) and width (30.15mm versus 29.60mm) dimensions. Both use identical termination styles and maintain RoHS3 compliance.

Q: Can the 186B12 be used in space-constrained applications?

A: The 186B12 is not recommended for space-constrained applications. It is larger in all dimensions compared to both the 241-3-12 and F3-12, with increased length, width, and height. Applications with strict dimensional requirements should use the F3-12 or original 241-3-12.

Q: Are all three transformers RoHS3 compliant?

A: Yes, all three transformers are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the dual primary winding in the 186B12?

A: The dual primary winding in the 186B12 allows operation at both 115V and 230V input voltages. The 241-3-12 and F3-12 are single primary winding designs rated for 115V only. The 186B12 provides additional input voltage flexibility if required by the application.