M7 100V 1A SMA Passivated Rectifier Diode SMD DO-214AC

M7 100V 1A SMA Passivated Rectifier Diode SMD DO-214AC is a reliable surface-mount semiconductor explicitly engineered for general-purpose rectification and power management in modern, high-density circuits. This passivated diode successfully converts alternating current into direct current while occupying minimal space on printed circuit boards. Consequently, engineers embed this compact component into automated surface-mount assembly workflows to streamline production. The device blocks reverse voltages up to 100V and handles a continuous forward current of 1A, therefore providing stable power delivery for sensitive low-voltage applications. Furthermore, its glass-passivated junction significantly minimizes reverse leakage current and enhances long-term reliability against environmental stress. Additionally, the DO-214AC (SMA) package design optimizes thermal dissipation during continuous operation, however, it remains small enough for portable electronic devices.

Key Features:

• Surface-Mount Design: The SMA package drastically reduces PCB footprint requirements compared to traditional axial-lead through-hole diodes.
• Glass Passivated Junction: This construction technique effectively improves reverse voltage capability and shields the internal silicon from moisture and contamination.
• High Forward Surge Capability: The diode sustains sudden non-repetitive surge currents up to 30A, preventing damage during circuit power-up phases.
• Low Leakage Current: It exhibits minimal reverse electrical leakage, consequently preserving energy efficiency in low-power battery-operated devices.
• Automated Assembly Ready: The standardized DO-214AC footprint easily accommodates high-speed pick-and-place manufacturing equipment.

Technical Specifications:

• Repetitive Peak Reverse Voltage (V_RRM): 100 V
• Average Forward Current (I_F(AV)): 1.0 A
• Forward Voltage Drop (V_F): ≈ 1.1 V (at 1.0 A continuous)
• Peak Forward Surge Current (I_FSM): 30 A (8.3 ms single half sine-wave)
• Maximum Reverse Leakage Current (I_R): 5.0 μA (at rated DC blocking voltage)
• Typical Junction Capacitance (C_J): 15 pF (at V_R = 4.0 V, 1 MHz)
• Operating Junction Temperature: −55°C to +150°C

Mechanical Specifications:

• Package Type: SMA / DO-214AC (Surface-Mount Device)
• Component Material: Molded plastic UL 94 V-0 recognized flame retardant epoxy
• Terminal Finish: Matte tin-plated leads, solderable per standard reflow processes
• Polarity: Denoted by a prominent laser-etched color band indicating the Cathode.
• Weight: ≈ 0.064 grams

Dimensions:

• Body Length: ≈ 4.60 mm (Max)
• Body Width: ≈ 2.92 mm (Max)
• Body Height: ≈ 2.44 mm (Max)
• Pad Length: ≈ 1.52 mm (Each side)
• Overall Length (including pads): ≈ 5.28 mm

Pinout and Wiring:

• Anode (Unmarked Pad): Solder this surface-mount terminal to the positive higher voltage power source.
• Cathode (Banded Pad): Solder this terminal (marked with the stripe) toward the lower voltage, load, or ground trace of your circuit.
• Wiring Note: Always design your PCB solder pads to match the standard DO-214AC footprint, therefore ensuring mechanical stability and proper heat transfer.

Datasheet Reference:

• Download M-Series SMA Rectifier Diode Datasheet

Commonly Used in:

• Switching Power Supplies: Functioning safely as standard rectifiers across low-to-medium voltage switch-mode circuits.
• Polarity Protection: Shielding sensitive surface-mount microcontrollers against accidental reverse battery connections.
• DC-DC Converters: Regulating current flow and preventing backfeeding in miniature step-up or step-down regulators.

Applications:

• Bridge Rectification: Arranging four diodes into a compact surface-mount bridge to convert AC inputs into smooth DC.
• Inductive Kickback Protection: Placing the diode across small relay coils to absorb transient voltage spikes effectively.
• Signal Clamping: Trimming unsafe voltage anomalies to protect communication buses consequently when voltage bounds are exceeded.

Equivalent Models:

• M2: The functionally identical 100V variant in the M-series (if M7 is strictly considered the 1000V version).
• 1N4002: The axial-lead, through-hole equivalent (DO-41 package) offering the exact same 1A 100V electrical specifications.
• S1B: Another common 100V 1A surface-mount rectifier available in the identical SMA package format.

Package Includes:

• 1 x M7 100V 1A SMA Passivated Rectifier Diode (SMD DO-214AC)