Hammond Manufacturing 809 Audio Transformer - Equivalent & Substitute Parts

Part Overview

The Hammond Manufacturing 809 is a broadcast quality audio transformer designed for chassis mount applications, operating across the 50Hz to 15kHz frequency range. This transformer features dual impedance configurations on both primary (200, 50/50 Ohms) and secondary (2.4k, 600/600 Ohms) windings, making it suitable for professional audio signal conditioning and impedance matching applications.

The 809 is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing system maintenance. The 809A serves as the direct active substitute within the Hammond Manufacturing 800 series transformer line.

Substiute Parts

809

Hammond ManufacturingIn Stock: 780809 Datasheet

Current PartRFQ

809A

Hammond ManufacturingIn Stock: 1156809A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Hammond Manufacturing 809A qualifies as a direct substitute based on the following critical parameters:

Matching Parameters:

• Identical transformer type classification (Broadcast Quality audio transformer)
• Identical frequency range (50Hz ~ 15kHz)
• Identical frequency response specification (±0.5dB)
• Identical power level (15dB)
• Identical mounting type (Chassis Mount)
• Identical RoHS compliance status (ROHS3 Compliant)
• Same manufacturer (Hammond Manufacturing)
• Same series family (800 series)

Substitution Basis: The 809A maintains all critical electrical performance parameters that define the functional equivalence of this transformer category. Both components operate within the same frequency band with identical response characteristics and power handling specifications. The primary distinction is product status: the 809 is obsolete while the 809A is active production, making the 809A the recommended component for new applications and replacement scenarios.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 809A is the appropriate substitute for the obsolete 809 model. Both components maintain identical electrical performance specifications across the broadcast quality audio transformer category, with matching frequency response, power handling, and impedance characteristics.

The 809A carries active product status with current manufacturing support, ensuring long-term availability for production and maintenance applications. Both components meet ROHS3 compliance requirements and maintain equivalent regulatory standing under REACH and ECCN classifications.

Physical differences exist in termination style (809 uses solder lugs; 809A uses wire leads) and mounted height (809A is more compact at 1.250" versus 809 at 2.559"). These dimensional variations require mechanical integration assessment within specific chassis designs but do not affect electrical substitution validity.

Frequently Asked Questions (FAQ)

Q: Can the 809A directly replace the 809 in existing designs?

A: The 809A provides electrical equivalence as a broadcast quality audio transformer with identical frequency response (±0.5dB), power level (15dB), and operating range (50Hz ~ 15kHz). Mechanical integration must account for termination style differences (wire leads versus solder lugs) and the reduced mounted height of the 809A (1.250" versus 2.559").

Q: What are the critical parameters for audio transformer substitution?

A: Substitution validity is determined by matching transformer type classification, frequency range, frequency response specification, power level rating, and mounting configuration. The 809 and 809A satisfy all these criteria for direct substitution within broadcast quality audio applications.

Q: Why is the 809 listed as obsolete?

A: The 809 has been superseded by the 809A within Hammond Manufacturing's product line. The 809A maintains all electrical performance specifications while offering active production status and improved availability.

Q: Are there compliance differences between the 809 and 809A?

A: Both components maintain identical RoHS3 compliance status, REACH classification, and ECCN designation (EAR99). No regulatory or compliance barriers exist to substitution.

Q: What is the significance of termination style differences?

A: The 809 features solder lug termination while the 809A uses wire leads. This affects circuit board integration methodology and mechanical mounting approach but does not impact electrical performance or substitution validity. Component selection should align with existing assembly processes and connector specifications.