Hammond Manufacturing 841 Audio Transformer - Equivalent & Substitute Parts

Part Overview

The Hammond Manufacturing 841 is a broadcast quality audio transformer with 20k/5k/5k primary impedance and 200/50/50 secondary impedance, designed for chassis mount applications in the 50Hz to 15kHz frequency range. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations. The 841 series represents a legacy product line that requires functional equivalents for procurement and replacement purposes.

Substiute Parts

841

Hammond ManufacturingIn Stock: 888841 Datasheet

Current PartRFQ

841A

Hammond ManufacturingIn Stock: 926841A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the Hammond Manufacturing 841 is determined by the following critical parameters:

Primary Substitution Criteria:

• Impedance matching: Primary impedance of 20k, 5k/5k and secondary impedance of 200, 50/50
• Frequency range: 50Hz to 15kHz operational bandwidth
• Transformer classification: Broadcast quality audio transformer
• Mounting configuration: Chassis mount requirement
• Compliance standards: ROHS3 compliance and REACH unaffected status

The Hammond Manufacturing 841A qualifies as a functional substitute based on matching frequency range (50Hz ~ 15kHz), frequency response specification (±0.5dB), broadcast quality audio transformer classification, chassis mount configuration, and equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected). Both parts operate within the same frequency band and maintain the same termination and mounting architecture required for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 841A represents an active product alternative to the obsolete 841 model. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements for electronic component procurement. The 841A operates within the identical frequency range and maintains equivalent frequency response characteristics, supporting direct functional replacement in audio transformer applications.

Physical form factor differences exist between the two models: the 841A features a reduced seated height of 1.250" compared to the 841's 2.559", and utilizes wire lead termination instead of solder lug configuration. These dimensional and termination variations require mechanical and electrical interface verification during integration planning.

Power level specification differs between models, with the 841 rated at 20dB maximum and the 841A at 15dB. This parameter variance necessitates evaluation against specific application power requirements prior to substitution.

Frequently Asked Questions (FAQ)

Q: Can the 841A directly replace the 841 in existing assemblies?

A: The 841A provides functional equivalence in frequency response and impedance characteristics. However, physical form factor differences—including reduced height and wire lead termination versus solder lug—require mechanical redesign or adapter implementation for direct mounting compatibility.

Q: What are the key impedance specifications for substitution?

A: Both the 841 and 841A operate with matching primary impedance (20k, 5k/5k) and secondary impedance (200, 50/50) configurations. Impedance matching is the primary criterion for audio transformer substitution in this product category.

Q: Are there compliance differences between the 841 and 841A?

A: Both components maintain ROHS3 compliance and REACH unaffected status. No compliance differentiation exists between the two models.

Q: What is the significance of the power level difference?

A: The 841 supports 20dB maximum power level while the 841A operates at 15dB. Applications requiring the full 20dB power specification must verify that the 841A meets minimum power handling requirements before substitution.

Q: How do termination style differences affect substitution?

A: The 841 uses solder lug termination while the 841A uses wire leads. Termination style affects circuit board integration methodology and requires corresponding changes to connection hardware and assembly procedures.