167P11 Equivalent & Substitute Parts

Part Overview

The 167P11 is a laminated core power transformer manufactured by Hammond Manufacturing, rated for 55VA with a 115V primary and 11V secondary output. This chassis mount transformer features a center tap configuration and wire lead termination, designed for applications requiring isolated low-voltage power conversion. The 167P11 is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations where this specification remains applicable.

Substiute Parts

167P11

Hammond ManufacturingIn Stock: 881167P11 Datasheet

Current PartRFQ

166P11

Hammond ManufacturingIn Stock: 1132166P11 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 167P11 is determined by strict equivalence across electrical and mechanical parameters. The primary criteria for substitution are:

• Identical power rating (55VA)
• Matching primary voltage (115V) and secondary voltage (11V)
• Equivalent maximum output current (5A)
• Single primary and single secondary winding configuration
• Center tap presence
• Chassis mount capability with wire lead termination
• Minimum isolation voltage of 2000Vrms
• Laminated core construction

The 166P11 meets all these criteria, providing functional equivalence for the obsolete 167P11. Both parts maintain identical electrical specifications and core construction, with differences limited to physical dimensions and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The 166P11 serves as the direct substitute for the obsolete 167P11. Both transformers are manufactured by Hammond Manufacturing and maintain identical electrical specifications: 55VA power rating, 115V primary to 11V secondary conversion, 5A maximum output current, center tap configuration, and 2000Vrms isolation voltage.

The 166P11 is classified as active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component deployment.

Physical dimensions differ between the two models. The 166P11 measures 93.73mm L x 54.10mm W with a maximum seated height of 54.10mm, compared to the 167P11's 64.60mm L x 69.85mm W with 77.72mm height. Weight reduction from 2.4 lbs to 2 lbs reflects design optimization in the active 166P11 variant. Chassis mount integration and wire lead termination remain consistent, supporting equivalent installation methodologies.

Frequently Asked Questions (FAQ)

Q: Can the 166P11 directly replace the 167P11 in existing applications?

A: The 166P11 provides electrical equivalence to the 167P11 across all specified parameters: power rating, voltage conversion, current capacity, winding configuration, center tap presence, and isolation voltage. Physical dimensions differ, requiring verification of available mounting space within the target chassis or enclosure.

Q: What are the key differences between the 167P11 and 166P11?

A: Electrical specifications are identical. The 166P11 differs in physical dimensions (smaller footprint), weight (lighter), and product status (active versus obsolete). The 166P11 is available in bulk packaging, while the 167P11 was supplied in standard packaging format.

Q: Are both transformers compliant with current regulations?

A: Both the 167P11 and 166P11 maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component use in regulated markets.

Q: What should be considered when selecting between these transformers?

A: Since the 167P11 is obsolete, the 166P11 is the appropriate selection for new designs and ongoing maintenance. Verify that the 166P11's physical dimensions (93.73mm L x 54.10mm W x 54.10mm H maximum) accommodate the available mounting space in your application. Both transformers support identical electrical integration and wire lead termination methods.

Q: Is the center tap configuration identical on both models?

A: Yes. Both the 167P11 and 166P11 feature center tap secondary windings, maintaining equivalent functionality for applications requiring center-tapped 11V output from a 115V primary input.