Hammond 141P 1200CT to 8 Ohm Low Profile PCB Audio Transformer
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Create Free Business AccountKey Features
- 1200 ohm CT primary to 8 ohm secondary nominal impedance
- 150 mW output with 2 mA maximum primary D.C. current
- Secondary D.C. resistance 0.45 ohms (series table)
- Frequency response 200 Hz - 50 kHz (±1.0 dB, ref. 1 kHz)
- Primary inductance 505.50 mH at 1 kHz, 1 V; 250 VRMS dielectric strength
- Low profile, open type body with 0.25" x 0.035" pins for P.C. board mount
- RoHS and REACH compliant
The 141P is a low profile P.C. board mount audio transformer in the 141 Series with a 1200 ohm center-tapped primary and an 8 ohm secondary. With the lowest secondary impedance in the series, it suits designers who need to step a 1200 ohm CT circuit down to an 8 ohm load on a compact board.
The 141P is rated for 150 milliwatts output and a maximum primary D.C. current of 2 mA. The series table lists D.C. resistance of 50 ohms primary and 0.45 ohms secondary. The part drawing lists 30.26 ohms across pins 1-2, 29.80 ohms across pins 2-3 and 0.750 ohms across secondary pins 4-6, each ±20%.
Typical primary inductance across pins 1-3 is 505.50 mH (4.03K ohm impedance) at 1 kHz, 1 V open circuit, with leakage inductance of 3.27 mH. Frequency response is 200 Hz to 50 kHz within ±1.0 dB referenced at 1 kHz, dielectric strength is 250 VRMS, and the temperature class is up to 105 °C.
The body is low profile and open type, with a core of high grade silicon laminations (29M6) and pin terminals 0.25" long by 0.035" diameter. Net weight is 0.6 oz. The 141P is RoHS and REACH compliant.
Ideal For
- 1200 ohm CT to 8 ohm audio coupling
- PC board mounted audio output circuits
- Low-profile audio board assemblies
Overview
| Series | 141 Series (Low Profile Audio) |
| Description | Audio transformer, low profile PC board mount, 1200CT:8 ohms, 141 series |
| Product Type | Low profile audio transformer, PC board mount |
Dimensions
| Net Weight | 0.6 oz. |
| Drawing Tolerance | ±0.02 in. |
Electrical
| Output | 150 mW |
| DCR Pin 2-3 | 29.80 Ohms ±20% |
| Max. Primary DC | 2 mA |
| Frequency Response | 200 Hz - 50 kHz (+/- 1 dB, ref. @ 1 kHz) |
| Dielectric Strength | 250 VRMS |
| DCR Primary, Pin 1-2 | 30.26 Ohms ±20% |
| DCR Secondary, Pin 4-6 | 0.750 Ohms ±20% |
| Output Power (Typical) | 150 mW |
| Primary DC Resistance | 50 ohms |
| Input Impedance (Typical) | 1200 Ohms |
| Max. Primary DC Current | 2 mA |
| Primary Nominal Impedance | 1200 ct ohms |
| Secondary DC Resistance | 0.45 ohms |
| Output Impedance (Typical) | 8 Ohms |
| Secondary Nominal Impedance | 8 ohms |
| Primary Impedance, Pin 1-3 (@ 1 KHz, 1 V OC) | 4.03K Ohm |
| Leakage Inductance, Pin 1-3 (@ 1 KHz, 1 V SC) | 3.27 mH |
| Primary Inductance, Pin 1-3 (@ 1 KHz, 1 V OC) | 505.50 mH |
Identifiers
| UPC | 623980190808 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 1 lbs (0.45 kg) |
Construction & Finish
| Core | High grade silicon laminations (29M6) |
| Pins | 0.25" length & 0.035" diameter |
| Mounting | P.C. board mount, pin type |
| Construction | Low profile, open type |
Environmental & Protection
| Temperature Class | Up to 105 °C |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What load impedance is the 141P secondary designed for?▾
The 141P secondary has a nominal impedance of 8 ohms, with a 1200 ohm center-tapped primary.
What is the power rating of the 141P?▾
The 141P is rated for 150 milliwatts output with a maximum primary D.C. current of 2 mA.
How is the 141P mounted?▾
The 141P 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 141P?▾
The 141 Series frequency response is 200 Hz to 50 kHz, +/- 1 dB referenced at 1 kHz.
Is the 141P RoHS and REACH compliant?▾
Yes. The manufacturer lists the 141P as both RoHS compliant and REACH compliant.
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