Crimp termination, 3.5 mm TRS plug
The SP-3530 is a male 3.5 mm (1/8", mini plug) phone plug from CUI Devices, configured as a 3-conductor TRS (tip-ring-sleeve) connector for stereo audio signals. Termination is crimp-style, suited for field assembly or harness production; the connector ships with a cover and strain relief. Rated 1 A at 12 VDC, with nickel-plated brass contacts and an ABS housing.
Position within the SP-35xx series
The SP-3530 is the 3-conductor crimp variant in CUI Devices' SP-35xx 3.5 mm phone plug family. The SP-3540A shares the same 3.5 mm diameter, 1 A rating, and 0.551" (14.00 mm) mating length but adds a fourth conductor (TRRS) and uses solder termination with a larger 0.217" (5.50 mm) cable opening. The SP-3533-WT is a solder-terminated 3-conductor version with a brass housing instead of ABS.
