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Product Detailed Parameters
- Description：DIODE ARRAY GP 50V 100MA SOT23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Diode Configuration：1 Pair Common Cathode
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：50 V
- Current - Average Rectified (Io) (per Diode)：100mA
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 100 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：4 ns
- Current - Reverse Leakage @ Vr：100 nA @ 50 V
- Operating Temperature - Junction：-55°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
- Grade：-
- Qualification：-
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Overview
The MMBD2838LT1G is a dual common-cathode switching diode manufactured by onsemi in a surface-mount SOT-23 package. It features two individual chips within a single three-pin configuration, designed for high-speed signal processing and rectification tasks. The device supports a maximum repetitive peak reverse voltage of 75V and handles a continuous forward current of 450mA per diode. It operates reliably across an extended temperature range from -55°C to +150°C, ensuring stability in demanding electronic environments.
Feature Summary
- Dual common-cathode configuration integrating two independent switching diodes into a compact footprint
- Optimized for high-speed switching applications with low junction capacitance characteristics
- Robust thermal performance supporting operation up to +150°C junction temperature
Applications
- High-speed digital signal switching circuits
- General-purpose rectification in low-voltage power supplies
- Protection circuits requiring fast recovery times
Procurement Notes
Verify the complete part number includes the 'G' suffix (MMBD2838LT1G) for lead-free compliance when ordering. Confirm the SOT-23 package dimensions match your PCB layout requirements. Ensure the 75V reverse voltage rating meets your circuit's peak inverse voltage demands. Check that the 450mA forward current capacity is sufficient for your specific load conditions before finalizing procurement.
Selection Notes
Select this component when a dual-diode solution is required in a minimal space-constrained design. The common-cathode arrangement simplifies biasing compared to separate discrete components. Consider the 75V breakdown voltage limit against your system's maximum operating voltages. The SOT-23 package offers a balance between thermal dissipation and board area efficiency for consumer and industrial electronics.
Part Context
This device belongs to onsemi's MMBD series of small-signal switching diodes. It shares the same internal die structure as the MMBD2837 but offers higher voltage tolerance. The LT1G suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes. It serves as a direct replacement for legacy dual diodes in compact portable devices.
Replacement Considerations
The MMBD2837LT1G is a verified substitute offering identical pinout and functionality with a lower 50V reverse voltage rating. Verify that the reduced voltage withstand capability does not compromise circuit safety margins. No functional changes are introduced by substituting these parts within their respective voltage limits.
