ST-4-120 Bel Fuse

Printed Circuit Mount ST / DST Series Split/Tran Specialty Purpose & Class 2 Transformers Split Bobbin with High Isolation Signals ST and DST transformers utilize a dual cavity platform providing superior isolation and low capacitive coupling. Rigid pin construction for easier board insertion and higher reliability. General Specifications Power - 1.1 VA to 36 VA Dielectric Strength - 2500 Vrms Hipot Primaries - Single or dual primaries, 115 V or 115/230 V, 50/60 Hz Secondaries - Series or parallel Electrostatic Shield - Not necessary, split bobbin construction Insulation System - Class F, 155 C Mounting Hardware - see chart Agency Certifications UL 1446 Class F insulation systems, File E66312 UL Recognized 506 / UL 5085-1, 2, File E63829 CSA certified to C22.2 66.1, File 221070 cCSAus certified to C22.2 66.3 / UL 5085-3, File 221070 Class 2 - marked with (*) or (**) or ( ) ** CSA certified as Inherently Limited * CSA certified as Non Inherently Limited - see recommended fuse rating table. UL Recognized UL5085-3, Inherently Limited File E116583 RoHS Compliant belfuse.com/signalST / DST Series Datasheet Part Number Selection Part Number Secondary RMS Rating Part Number Secondary RMS Rating Single 115 V Dual 115/230 V Single 115 V Dual 115/230 V Series Parallel Series Parallel 6 Pin 8 Pin 6 Pin 8 Pin ST-2-10** DST-2-10** 10 VCT 0.11 A 5 V 0.22 A ST-2-28 DST-2-28 28 VCT 0.04 A 14 V 0.08 A ST-3-10* DST-3-10* 10 VCT 0.25 A (5) 5 V 0.5 A (9) ST-3-28 DST-3-28 28 VCT 0.085 A 14 V 0.17 A ST-4-10* DST-4-10* 10 VCT 0.6 A (9) 5 V 1.2 A (11) ST-4-28 DST-4-28 28 VCT 0.2 A 14 V 0.4 A ST-5-10* DST-5-10* 10 VCT 1.2 A (11) 5 V 2.4 A (13) ST-5-28 DST-5-28 28 VCT 0.42 A 14 V 0.84 A ST-6-10 DST-6-10 10 VCT 2.0 A 5 V 4.0 A ST-6-28 DST-6-28 28 VCT 0.7 A 14 V 1.4 A ST-7-10 DST-7-10 10 VCT 3.6 A 5 V 7.2 A ST-7-28 DST-7-28 28 VCT 1.3 A 14 V 2.6 A ST-2-12** DST-2-12** 12.6 VCT 0.09 A 6.3 V 0.18 A ST-2-36 DST-2-36 36 VCT 0.03 A 18 V 0.06 A ST-3-12* DST-3-12* 12.6 VCT 0.2 A (4) 6.3 V 0.4 A (8) ST-3-36 DST-3-36 36 VCT 0.065 A 18 V 0.13 A ST-4-12* DST-4-12* 12.6 VCT 0.5 A (9) 6.3 V 1.0 A (11) ST-4-36 DST-4-36 36 VCT 0.17 A 18 V 0.34 A ST-5-12* DST-5-12* 12.6 VCT 1.0 A (11) 6.3 V 2.0 A (13) ST-5-36 DST-5-36 36 VCT 0.35 A 18 V 0.7 A ST-6-12 DST-6-12 12.6 VCT 1.6 A 6.3 V 3.2 A ST-6-36 DST-6-36 36 VCT 0.55 A 18 V 1.1 A ST-7-12 DST-7-12 12.6 VCT 2.85 A 6.3 V 5.7 A ST-7-36 DST-7-36 36 VCT 1.0 A 18 V 2.0 A ST-2-16** DST-2-16** 16 VCT 0.07 A 8 V 0.14 A ST-2-48 DST-2-48 48 VCT 0.023 A 24 V 0.046 A ST-3-16* DST-3-16* 16 VCT 0.15 A (3) 8 V 0.3 A (6) ST-3-48 DST-3-48 48 VCT 0.05 A 24 V 0.1 A ST-4-16* DST-4-16* 16 VCT 0.4 A (7) 8 V 0.8 A (10) ST-4-48 DST-4-48 48 VCT 0.125 A 24 V 0.25 A ST-5-16* DST-5-16* 16 VCT 0.8 A (10) 8 V 1.6 A (12) ST-5-48 DST-5-48 48 VCT 0.25 A 24 V 0.5 A ST-6-16 DST-6-16 16 VCT 1.25 A 8 V 2.5 A ST-6-48 DST-6-48 48 VCT 0.4 A 24 V 0.8 A ST-7-16 DST-7-16 16 VCT 2.25 A 8 V 4.5 A ST-7-48 DST-7-48 48 VCT 0.75 A 24 V 1.5 A ST-2-20** DST-2-20** 20 VCT 0.055 A 10 V 0.11 A ST-2-56 DST-2-56 56 VCT 0.02 A 28 V 0.04 A ST-3-20* DST-3-20* 20 VCT 0.12 A (2) 10 V 0.24 A (5) ST-3-56 DST-3-56 56 VCT 0.045 A 28 V 0.09 A ST-4-20* DST-4-20* 20 VCT 0.3 A (6) 10 V 0.6 A (9) ST-4-56 DST-4-56 56 VCT 0.11 A 28 V 0.22 A ST-5-20* DST-5-20* 20 VCT 0.6 A (9) 10 V 1.2 A (11) ST-5-56 DST-5-56 56 VCT 0.22 A 28 V 0.44 A ST-6-20 DST-6-20 20 VCT 1.0 A 10 V 2.0 A ST-6-56 DST-6-56 56 VCT 0.35 A 28 V 0.7 A ST-7-20 DST-7-20 20 VCT 1.8 A 10 V 3.6 A ST-7-56 DST-7-56 56 VCT 0.65A 28 V 1.3 A ST-2-24** DST-2-24** 24 VCT 0.045 A 12 V 0.09 A ST-2-120 DST-2-120 120 VCT 0.01 A 60 V 0.02 A ST-3-24* DST-3-24* 24 VCT 0.1 A (1) 12 V 0.2 A (4) ST-3-120 DST-3-120 120 VCT 0.02 A 60 V 0.04 A ST-4-24* DST-4-24* 24 VCT 0.25 A (5) 12 V 0.5 A (9) ST-4-120 DST-4-120 120 VCT 0.05 A 60 V 0.1 A ST-5-24* DST-5-24* 24 VCT 0.5 A (9) 12 V 1.0 A (11) ST-5-120 DST-5-120 120 VCT 0.1 A 60 V 0.2 A ST-6-24 DST-6-24 24 VCT 0.8 A 12 V 1.6 A ST-6-120 DST-6-120 120 VCT 0.16 A 60 V 0.32 A ST-7-24 DST-7-24 24 VCT 1.5 A 12 V 3.0 A ST-7-120 DST-7-120 120 VCT 0.3 A 60 V 0.6 A Recommended secondary fuse value specified as below: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) 0.125 A 0.15 A 0.25 A 0.3 A 0.375 A 0.4 A 0.5 A 0.6 A 0.75 A 1.0 A 1.5 A 2.0 A 3.0 A See Accessories datasheet for mounting screw information. RoHS Compliant Custom versions available upon request. 128 Atlantic Avenue, Lynbrook, NY 11563 Toll Free 866-239-5777 Tel 516-239-5777 Fax 516-239-7208 sales signaltransformer.com techhelp signaltransformer.com belfuse.com/signal 2020 Signal Transformer Specifications subject to change without notice ST/DST Series 06.20