Hammond 141F 25K to 50 Ohm Low Profile PCB Audio Transformer
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Create Free Business AccountKey Features
- 25K ohm primary to 50 ohm secondary nominal impedance
- 100 mW output with 2 mA maximum primary D.C. current
- D.C. resistance: 1645 ohms primary, 65 ohms secondary
- Frequency response 200 Hz - 50 kHz (+/- 1 dB, ref. 1 kHz)
- Low profile, open type construction
- Pin terminals 0.25" long x 0.035" diameter for P.C. board mounting
- RoHS and REACH compliant
The 141F is a 141 Series low profile audio transformer for P.C. board mounting, with a nominal 25K ohm primary and a 50 ohm secondary. That large step between windings makes it a candidate for designers who need to couple a high impedance circuit to a low impedance one on a compact board.
The 141F is rated for 100 milliwatts output and a maximum primary D.C. current of 2 mA. D.C. resistance is 1645 ohms on the primary and 65 ohms on the secondary. Like the rest of the 141 Series, frequency response runs from 200 Hz to 50 kHz within +/- 1 dB, referenced at 1 kHz.
Construction is low profile and open type. Terminals are pin type, 0.25" long with a 0.035" diameter, intended to solder directly into a P.C. board. Net weight of the transformer is 0.6 oz, and the listed shipping weight is 1 lbs (0.45 kg).
The manufacturer lists the 141F as RoHS compliant and REACH compliant. Identifiers include UPC 623980190402 and UNSPSC 39121301, useful when adding the part to a bill of materials or purchasing system.
Ideal For
- PC board mounted audio circuits
- 25K ohm to 50 ohm impedance matching
- Low-profile audio board assemblies
Overview
| Series | 141 Series (Low Profile Audio) |
| Description | Audio transformer, low profile PC board mount, 25K:50 ohms, 141 series |
| Product Type | Low profile audio transformer, PC board mount |
Dimensions
| Net Weight | 0.6 oz. |
Electrical
| Output | 100 mW |
| Frequency Response | 200 Hz - 50 kHz (+/- 1 dB, ref. @ 1 kHz) |
| Primary DC Resistance | 1645 ohms |
| Max. Primary DC Current | 2 mA |
| Primary Nominal Impedance | 25 K ohms |
| Secondary DC Resistance | 65 ohms |
| Secondary Nominal Impedance | 50 ohms |
Identifiers
| UPC | 623980190402 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 1 lbs (0.45 kg) |
Construction & Finish
| Pins | 0.25" length & 0.035" diameter |
| Mounting | P.C. board mount, pin type |
| Construction | Low profile, open type |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What are the primary and secondary impedances of the 141F?▾
The 141F has a nominal primary impedance of 25K ohms and a nominal secondary impedance of 50 ohms.
What is the D.C. resistance of the 141F windings?▾
Primary D.C. resistance is 1645 ohms and secondary D.C. resistance is 65 ohms.
How is the 141F mounted?▾
The 141F is a P.C. board mount part with pin type terminals 0.25" long and 0.035" in diameter, in a low profile, open type construction.
What is the frequency response of the 141F?▾
The 141 Series frequency response is 200 Hz to 50 kHz, +/- 1 dB referenced at 1 kHz.
Is the 141F RoHS and REACH compliant?▾
Yes. The manufacturer lists the 141F as both RoHS compliant and REACH compliant.
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