DST-3-24

Printed Circuit Mount ST / DST Series Split/Tran™ Specialty Purpose & Class 2 Transformers Split Bobbin with High Isolation Signal’s 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/signal ST / DST Series Datasheet Part Number Selection Part Number Single 115 V 6 Pin Secondary RMS Rating Dual 115/230 V 8 Pin Series Parallel Part Number Single 115 V 6 Pin Secondary RMS Rating Dual 115/230 V 8 Pin Series Parallel 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 ST / DST Series Datasheet Mechanical Specifications Size VA L W H ML A B Optional Mounting Screw & Nut • C Weight Inches (mm) lbs (kg) 2 1.1 1.37 (34.9) 1.12 (28.6) 0.97 (24.6) - 0.25 (6.4) 0.25 (6.4) 1.20 (30.5) - 0.17 (0.08) 3 2.4 1.37 (34.9) 1.12 (28.6) 1.21 (30.8) - 0.25 (6.4) 0.25 (6.4) 1.20 (30.5) - 0.25 (0.11) 4 6 1.62 (41.3) 1.31 (33.3) 1.31 (33.3) 1.06 (26.9) 0.25 (6.4) 0.35 (8.9) 1.25 (31.8) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.44 (0.20) 5 12 1.91 (48.4) 1.59 (40.4) 1.45 (36.9) 1.25 (31.8) 0.30 (7.6) 0.40 (10.2) 1.41 (35.8) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.70 (0.32) 6 20 2.25 (57.2) 1.88 (47.8) 1.45 (36.9) 1.50 (38.1) 0.30 (7.6) 0.40 (10.2) 1.60 (40.6) Nylon 4-40 x 1.37 (4-40 x 34.9) 0.80 (0.36) 7 36 2.62 (66.7) 2.18 (55.5) 1.59 (40.4) •• 0.40 (10.2) 0.40 (10.2) 1.85 (47.0) •• 1.1 (0.50) • Available from Signal, part numbers ST-MS (screw) and ST-MN (nut). • • Size 7 has 4 mounting holes on 2.18 x 1.75 centers for #6 screws. 6 Pin Type ST 5 4 6 7 115 V 50/60 Hz 1 8 Indicates like polarity 4 115/230 V 50/60 Hz 8 Pin Type DST 5 3 2 6 7 1 8 Indicates like polarity 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