FP88-28 Equivalent & Substitute Parts

Part Overview

The FP88-28 is a laminated core power transformer manufactured by Triad Magnetics, rated at 2.5VA 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 44V (parallel) or 88V (series). The part maintains Active product status and is RoHS3 compliant.

Substitute parts are identified to provide alternative sourcing options when the primary FP88-28 is unavailable, while maintaining electrical and mechanical compatibility within specified tolerance ranges.

Substiute Parts

FP88-28

Triad MagneticsIn Stock: 919FP88-28 Datasheet

Current PartRFQ

229E88

Hammond ManufacturingIn Stock: 1023229E88 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FP88-28 are identified based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Primary voltage configuration: 115V, 230V dual input
• Secondary voltage output: Parallel 44V, Series 88V configuration
• Maximum output current: Parallel 56mA, Series 28mA
• Power rating: Minimum 2VA (FP88-28 rated 2.5VA)
• Isolation voltage: Minimum 1750Vrms
• Dual primary and dual secondary winding configuration

Mechanical Compatibility Criteria:

• Mounting type: Through Hole
• Termination style: PC Pin
• Maximum seated height: 16.51mm
• Footprint dimensions within acceptable tolerance

Compliance Criteria:

• RoHS3 compliance required
• Active product status
• REACH Unaffected classification

The Hammond Manufacturing 229E88 meets all electrical parameters with equivalent voltage and current ratings, matching winding configurations, and maintaining required isolation specifications. Mechanical mounting and termination are identical. Both parts carry equivalent regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

FP88-28 (Triad Magnetics - Primary Selection)

The FP88-28 is the specified component with Active product status and higher rated specifications. It provides 2.5VA power capacity and 2000Vrms isolation voltage. This part is suitable for applications requiring maximum performance headroom and is available with 899 pieces in stock.

229E88 (Hammond Manufacturing - Substitute Selection)

The 229E88 serves as a functional substitute when FP88-28 availability is constrained. It delivers identical electrical performance at the specified operating points (44V/56mA parallel or 88V/28mA series configuration) with 2VA rated capacity. The 1750Vrms isolation rating remains within acceptable parameters for equivalent circuit applications. Both parts maintain RoHS3 compliance and Active product status.

The primary distinction between parts is core construction: FP88-28 uses laminated core technology while 229E88 employs semi-toroidal construction. Footprint dimensions are rotated (47.63mm L x 39.67mm W versus 39.62mm L x 47.75mm W) but maintain identical maximum seated height of 16.51mm. PCB layout accommodation is required when substituting.

Both parts are suitable for direct substitution in through-hole applications where the specified electrical parameters and mounting constraints are met.

Frequently Asked Questions (FAQ)

Q: Can the 229E88 directly replace the FP88-28 without circuit modification?

A: The 229E88 provides identical electrical output at specified operating points. No circuit modification is required. PCB layout adjustment is necessary due to rotated footprint dimensions (length and width are transposed). Verify PCB clearance for the 39.62mm L x 47.75mm W footprint.

Q: What is the difference between laminated and semi-toroidal core construction?

A: Both core types are provided in the specifications. Laminated cores (FP88-28) use stacked steel laminations. Semi-toroidal cores (229E88) use a toroidal geometry with partial winding coverage. Both deliver the specified electrical performance at rated parameters.

Q: Are the isolation voltage ratings interchangeable?

A: The FP88-28 provides 2000Vrms isolation while the 229E88 provides 1750Vrms. Both exceed standard safety isolation requirements for equivalent applications. Selection depends on specific circuit isolation specifications. If 2000Vrms isolation is required, use FP88-28.

Q: What is the power rating difference between these parts?

A: FP88-28 is rated 2.5VA while 229E88 is rated 2VA. At specified operating points (44V/56mA parallel or 88V/28mA series), both deliver equivalent power output. The 229E88 has lower rated capacity headroom. Verify application power requirements do not exceed 2VA continuous operation.

Q: Are both parts RoHS3 compliant?

A: Yes. Both FP88-28 and 229E88 carry RoHS3 compliance certification and REACH Unaffected status. Both are suitable for applications requiring regulatory compliance in these standards.

Q: What packaging differences exist between these parts?

A: FP88-28 is supplied in Box packaging with 899 pieces in stock. 229E88 is supplied in Bulk packaging with 925 pieces in stock. Packaging format does not affect electrical or mechanical compatibility.

Q: Can I use the 229E88 in a space-constrained application?

A: Footprint dimensions are rotated between parts. FP88-28 measures 47.63mm L x 39.67mm W. 229E88 measures 39.62mm L x 47.75mm W. Maximum seated height is identical at 16.51mm. Verify PCB layout accommodates the rotated footprint before substitution.