LSX701-143-5 – Complete Technical Summary
(Based on Microsemi LSX101-LSX701 Series Datasheet)

1. Device Overview1.1 Base Part: LSX701 – RoHS-compliant Schottky barrier diode pair in SOT-231.2 Configuration Code: 143-5 (factory-specific internal connection; consult factory for schematic)1.3 Package Style: Surface-mount SOT-23 (JEDEC TO-236 / Package Outline 23)1.4 Finish: Matte-tin plated, 100 % Sn, suitable for Pb-free reflow
2. Absolute Maximum Ratings @ 25 °C (unless noted)2.1 Power Dissipation: 250 mW (derate linearly to 0 mW at Tj = 125 °C)2.2 Storage Temperature: –55 °C to +125 °C2.3 Operating Junction Temperature: –55 °C to +125 °C2.4 Peak Forward Current (1 µs pulse): 1.0 A
3. Key Electrical Parameters @ 25 °C3.1 Breakdown Voltage VB @ IR = 10 µA: 70 V (min)3.2 Reverse Leakage IR @ VR = 50 V: 200 nA (max)3.3 Forward Voltage VF @ IF = 1 mA: 300 – 430 mV (typ–max range)3.4 Series Resistance RD @ IF = 5 mA: 2.0 Ω (max)3.5 Total Capacitance CT @ VR = 0 V, f = 1 MHz: 32 pF (max)
4. Typical Applications• High-volume mixers & detectors• Sampling phase detectors• Limiter / clipper circuits• Pulse / wave-shaping networks• Up/down converters
5. Industry Cross-ReferencesEquivalent dual-diode parts:HSMS2800, SMS1526-50, MA4CS101A (configuration 23-0)LSX701-143-5 uses the same die set but factory-selected pin-out; verify pin-out with Microsemi.
6. Packaging & Shipping6.1 Tape & Reel: 8 mm carrier, 3 k pcs/reel standard (other quantities available)6.2 Reel Ø: 7 in (178 mm) or 13 in (330 mm)6.3 Moisture Sensitivity: MSL 1 (unlimited floor life)
7. Thermal Characteristics7.1 Thermal Resistance Junction-to-Ambient (RθJA): ≈ 350 K/W on standard FR-4, 1 in² 1 oz Cu pad7.2 Soldering Profile:– Pb-free peak: 260 °C max, 10 s max above 255 °C– Sn-Pb peak: 245 °C max
8. ESD & Reliability8.1 ESD Classification: Class 0B (HBM) – handle with standard ESD precautions8.2 Accelerated Life: 1 000 h @ 125 °C, ΔVF ≤ 50 mV typical
9. Ordering DescriptorLSX701-143-5│ │ ││ │ └─ Factory configuration suffix (143-5)│ └───── RoHS-compliant series identifier└──────── Base part number (dual 70 V Schottky)
10. Cautions & Legal• Parameters are laboratory typical; actual performance may vary with board layout, temperature, and drive level.• Devices are ESD-sensitive—use proper handling.• Consult Microsemi for detailed SPICE models, s-parameters, or custom configurations.