SP-42

$13.52

Description：AUDIO XFMR 150CT / 12 TH
Series：Red-Spec
Mfr：Triad Magnetics
Package：Bulk

SKU:5a2ef154e2b1 Category: Audio Transformers Brand: Triad Magnetics

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Product introduction

SP-42 is listed in the Audio Transformers range at ChipApex. The manufacturer field lists Triad Magnetics. Its product description is AUDIO XFMR 150CT / 12 TH. Review the specifications below when checking this part for your BOM.

Audio Transformers specifications for SP-42

Description：AUDIO XFMR 150CT / 12 TH
Series：Red-Spec
Mfr：Triad Magnetics
Package：Bulk
Mounting Type：Through Hole
Size / Dimension：0.410" L x 0.310" W (10.41mm x 7.87mm)
Height - Seated (Max)：0.465" (11.80mm)
Termination Style：PC Pin
Turns Ratio - Primary:Secondary：3.54:1
Impedance - Primary (Ohms)：150CT
Impedance - Secondary (Ohms)：12
DC Resistance (DCR) - Primary：18Ohm
DC Resistance (DCR) - Secondary：2.7Ohm
Transformer Type：Audio Coupling
Frequency Range：300Hz ~ 100kHz
Frequency Response：±2dB
Voltage - Isolation：1000VRMS @ 1 Second
Insertion Loss：-
Return Loss：-
Power Level：50mW
Operating Temperature：-40°C ~ 85°C
Approval Agency：-

Audio Transformers datasheet and documents for SP-42

SP-42

Audio Transformers Overview

The Triad Magnetics SP-42 is an encapsulated audio transformer designed for signal coupling applications. It features a primary impedance of 150 Ohms with center tap and a secondary impedance of 12 Ohms with center tap. The unit supports a power rating of 50 mW and operates within a frequency range of 300 Hz to 100 kHz. It utilizes PC pin termination for through-hole mounting and provides 1000 VRMS isolation voltage. The component is constructed with gold-plated leads and an epoxy molded case, ensuring durability in various environments.

Audio Transformers Feature Summary

Encapsulated construction with epoxy molded case for environmental protection
Gold-plated PC pin terminals for reliable soldering connections
Wide frequency response suitable for audio and ultrasonic signals

Audio Transformers Applications

Audio signal coupling
Ultrasonic applications
Impedance matching circuits

Audio Transformers Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer specifications may be updated. Confirm that the required center-tapped configuration matches the 150 Ohm primary and 12 Ohm secondary design. Ensure the PCB layout accommodates the PC pin spacing and physical dimensions of the epoxy molded package before finalizing procurement.

Audio Transformers Selection Notes

Select this component when a compact, encapsulated audio transformer with wide bandwidth is required. The 150:12 Ohm ratio suits specific impedance matching needs distinct from standard 600 Ohm telephony transformers. Consider the 50 mW power handling limit and the 1000 Vrms isolation rating for circuit safety requirements.

Audio Transformers Part Context

The SP-42 belongs to Triad Magnetics' line of encapsulated audio transformers. These components are characterized by their robust epoxy molding and gold-plated leads, distinguishing them from open-frame designs. They are engineered for consistent performance in consumer audio and specialized ultrasonic equipment where size and reliability are critical factors.