Low profile flathead transformer Bel Fuse LP-34-700 from Signal LP Series with dual primaries and RoHS compliance
Product Overview
The Signal LP Series Flathead Low Profile Transformers are designed for low power and critical height applications. Utilizing hum-bucking (semi-toroidal) construction, these transformers minimize radiated magnetic fields, making them ideal for PC board applications where a low profile is essential. They offer dual primaries (115/230 V, 50/60 Hz) and can be configured for series or parallel secondaries. Available in a power range of 2 VA to 48 VA, with heights from 0.65 to 1.375. The insulation system is Class B, 130 C, compliant with UL 1446.
Product Attributes
- Brand: Signal
- Series: LP Series
- Construction: Hum-bucking (semi-toroidal)
- Certifications: UL recognized to UL 506 / UL 5085-2, File # E63829; CSA - NRTL/C22.2 #66.1, File # 221070
- Compliance: RoHS Compliant
- Customization: Custom versions available upon request
Technical Specifications
General Specifications:
| Specification | Value |
|---|---|
| Power | 2 VA to 48 VA |
| Dielectric Strength | 1500 Vrms Hipot |
| Primaries | Dual primaries, 115/230 V - 50/60 Hz |
| Secondaries | Series or Parallel |
| Height | 0.65 to 1.375 (16.5 mm to 34.9 mm) |
| Insulation System | Class B, 130 C, UL 1446, E66312 |
Part Number Selection:
| Part Number | VA | Secondary RMS Rating (Series) | Secondary RMS Rating (Parallel) | Size |
|---|---|---|---|---|
| LP-10-250 | 2 | 10 VCT @ 250 mA | 5 V @ 500 mA | 2 |
| LP-10-600 | 6 | 10 VCT @ 600 mA | 5 V @ 1.2 A | 6 |
| LP-10-1200 | 12 | 10 VCT @ 1200 mA | 5 V @ 2.4 A | 12 |
| LP-10-2400 | 24 | 10 VCT @ 2.40 A | 5 V @ 4.80 A | 24 |
| LP-10-4800 | 48 | 10 VCT @ 4.80 A | 5 V @ 9.60 A | 48 |
| LP-12-200 | 2 | 12.6 VCT @ 200 mA | 6.3 V @ 400 mA | 2 |
| LP-12-450 | 6 | 12.6 VCT @ 450 mA | 6.3 V @ 900 mA | 6 |
| LP-12-900 | 12 | 12.6 VCT @ 900 mA | 6.3 V @ 1.8 A | 12 |
| LP-12-1900 | 24 | 12.6 VCT @ 1.90 A | 6.3 V @ 3.80 A | 24 |
| LP-12-3800 | 48 | 12.6 VCT @ 3.80 A | 6.3 V @ 7.60 A | 48 |
| LP-16-150 | 2 | 16 VCT @ 150 mA | 8 V @ 300 mA | 2 |
| LP-16-350 | 6 | 16 VCT @ 350 mA | 8 V @ 700 mA | 6 |
| LP-16-700 | 12 | 16 VCT @ 700 mA | 8 V @ 1.4 A | 12 |
| LP-16-1500 | 24 | 16 VCT @ 1.50 A | 8 V @ 3.00 A | 24 |
| LP-16-3000 | 48 | 16 VCT @ 3.00 A | 8 V @ 6.00 A | 48 |
| LP-20-125 | 2 | 20 VCT @ 125 mA | 10 V @ 250 mA | 2 |
| LP-20-300 | 6 | 20 VCT @ 300 mA | 10 V @ 600 mA | 6 |
| LP-20-600 | 12 | 20 VCT @ 600mA | 10 V @ 1.2 A | 12 |
| LP-20-1200 | 24 | 20 VCT @ 1.20 A | 10 V @ 2.40 A | 24 |
| LP-20-2400 | 48 | 20 VCT @ 2.40 A | 10 V @ 4.80 A | 48 |
| LP-24-100 | 2 | 24 VCT @ 100 mA | 12 V @ 200 mA | 2 |
| LP-24-250 | 6 | 24 VCT @ 250 mA | 12 V @ 500 mA | 6 |
| LP-24-500 | 12 | 24 VCT @ 500 mA | 12 V @ 1.00 A | 12 |
| LP-24-1000 | 24 | 24 VCT @ 1.00 A | 12 V @ 2.00 A | 24 |
| LP-24-2000 | 48 | 24 VCT @ 2.00 A | 12V @ 4.00 A | 48 |
| LP-30-85 | 2 | 30 VCT @ 85 mA | 15 V @ 170 mA | 2 |
| LP-30-200 | 6 | 30 VCT @ 200 mA | 15 V @ 400 mA | 6 |
| LP-30-400 | 12 | 30 VCT @ 400 mA | 15 V @ 800 mA | 12 |
| LP-30-800 | 24 | 30 VCT @ 800 mA | 15 V @ 1.60 A | 24 |
| LP-30-1600 | 48 | 30 VCT @ 1.60 A | 15 V @ 3.20 A | 48 |
| LP-34-75 | 2 | 34 VCT @ 75 mA | 17 V @ 150 mA | 2 |
| LP-34-170 | 6 | 34 VCT @ 170 mA | 17 V @ 340 mA | 6 |
| LP-34-340 | 12 | 34 VCT @ 340 mA | 17 V @ 680 mA | 12 |
| LP-34-700 | 24 | 34 VCT @ 700 mA | 17 V @ 1.40 A | 24 |
| LP-34-1400 | 48 | 34 VCT @ 1.40 A | 17 V @ 2.80 A | 48 |
| LP-40-60 | 2 | 40 VCT @ 60 mA | 20 V @ 120 mA | 2 |
| LP-40-150 | 6 | 40 VCT @ 150 mA | 20 V @ 300 mA | 6 |
| LP-40-300 | 12 | 40 VCT @ 300 mA | 20 V @ 600 mA | 12 |
| LP-40-600 | 24 | 40 VCT @ 600 mA | 20 V @ 1.20 A | 24 |
| LP-40-1200 | 48 | 40 VCT @ 1.20 A | 20 V @ 2.40 A | 48 |
| LP-56-45 | 2 | 56 VCT @ 45 mA | 28 V @ 90 mA | 2 |
| LP-56-100 | 6 | 56 VCT @ 100 mA | 28 V @ 200 mA | 6 |
| LP-56-200 | 12 | 56 VCT @ 200 mA | 28 V @ 400 mA | 12 |
| LP-56-425 | 24 | 56 VCT @ 425 mA | 28 V @ 850 mA | 24 |
| LP-56-850 | 48 | 56 VCT @ 850 mA | 28 V @ 1.70 A | 48 |
| LP-88-28 | 2 | 88 VCT @ 28 mA | 44 V @ 56 mA | 2 |
| LP-88-65 | 6 | 88 VCT @ 65 mA | 44 V @ 130 mA | 6 |
| LP-88-130 | 12 | 88 VCT @ 130 mA | 44 V @ 260 mA | 12 |
| LP-120-20 | 2 | 120 VCT @ 20 mA | 60 V @ 40 mA | 2 |
| LP-120-50 | 6 | 120 VCT @ 50 mA | 60 V @ 100 mA | 6 |
| LP-120-100 | 12 | 120 VCT @ 100 mA | 60 V @ 200 mA | 12 |
| LP-230-10 | 2 | 230 VCT @ 10 mA | 115 V @ 20 mA | 2 |
| LP-230-25 | 6 | 230 VCT @ 25 mA | 115 V @ 50 mA | 6 |
| LP-230-50 | 12 | 230 VCT @ 50mA | 115 V @ 100 mA | 12 |
Mechanical Specifications:
| Size | VA | Dimensions (Inches [mm]) A x B x C | Dimensions (Inches [mm]) L x W | Height (Inches [mm]) | Pin Size | Clearance Hole | Weight (oz [kg]) |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 1.60 (40.6) x 0.37 (9.5) x 0.37 (9.5) | 1.87 (47.5) x 1.56 (39.6) | 0.65 (16.5) | 5 (0.14) | ||
| 6 | 6 | 1.60 (40.6) x 0.37 (9.5) x 0.37 (9.5) | 1.87 (47.5) x 1.56 (39.6) | 0.85 (21.6) | 7 (0.20) | ||
| 12 | 12 | 2.00 (50.8) x 0.50 (12.7) x 0.50 (12.7) | 2.50 (63.5) x 2.00 (50.8) | 1.06 (27.1) | 11 (0.31) | ||
| 24 | 24 | 1.90 (48.3) x 0.60 (15.2) x 0.53 (13.5) | 2.87 (72.9) x 2.25 (57.2) | 1.25 (31.8) | 0.041 SQ pin (1.04 SQ mm) | Clearance Hole for #4 Screw | 15 (0.43) |
| 48 | 48 | 2.18 (55.4) x 0.60 (15.2) x 0.66 (16.8) | 3.12 (79.2) x 2.50 (63.5) | 1.37 (34.9) | 0.041 SQ pin (1.04 SQ mm) | Clearance Hole for #6 Screw | 21 (0.60) |
Note: 1 indicates like polarity.
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