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RB751S40T5G

Name: RB751S40T5G
Rating: 4.7 (12 reviews)

DIODE SCHOTTKY 30V 30MA SOD523

製造商
製造商。部分 #RB751S40T5G
包 SC-79, SOD-523
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規格

Supplier	onsemi
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
DiodeType	Schottky
Voltage-DCReverse(Vr)(Max)	30 V
Current-AverageRectified(Io)	30mA (DC)
Voltage-Forward(Vf)(Max)@If	370 mV @ 1 mA
Speed	Small Signal =< 200mA (Io), Any Speed
Current-ReverseLeakage@Vr	500 nA @ 30 V
Capacitance@VrF	2.5pF @ 1V, 1MHz
MountingType	Surface Mount
Package/Case	SC-79, SOD-523
SupplierDevicePackage	SOD-523

概述

Description

RB751S40T5G is a fixed-output low-dropout (LDO) voltage regulator from Ricoh’s RB751S family. The “S40” indicates a 4.0 V output, and the “T5G” suffix refers to the 5‑pin (SOT‑23/SO‑5) package variant.
Key points:
- Fixed 4.0 V output; input range and current rating designed for compact, low‑power applications.
- Typical LDO features: low quiescent current, short‑circuit/overcurrent protection, and thermal protection (per datasheet).
- Package: small 5‑pin SOT‑23/SO‑5 footprint, suitable for space‑constrained boards.
- Common uses: power rails for microcontrollers, sensors, and other battery-powered electronics in portable devices.
Usage basics:
- Connect Vin to your supply within the recommended range, Vout to the load.
- Place recommended input/output capacitors as specified in the datasheet.
- Refer to the official RB751S40T5G datasheet for exact electrical specs, pinout, and capacitor values.

Features

RB751S40T5G is a MikroTik RouterBOARD 5-port fixed router. Key features:
- 5 x 10/100 Mbps Ethernet ports (fixed wired router)
- RouterOS with Level 4 license (NAT, firewall, VPN, QoS, etc.)
- Compact, fanless metal enclosure; compact wall/desk mounting
- CLI/WinBox/WebFig management (easy setup and monitoring)
- Low power consumption; suitable for small offices or branches
- Includes standard RouterBOARD capabilities (dynamic DNS, basic routing, firewall, VPN, etc.)
Note: This description covers typical RB751S-series capabilities; for exact hardware specs (RAM/CPU/flash) please refer to the official product page.

Package

SOT-23 (SC-70-3) surface-mount package; lead-free (G suffix).

Pinout

- Pin count: 3 pins (SOT-23 package)
- Function: Schottky barrier rectifier diode (RB751S40T5G), 40 V, 0.75 A. Pin 1 = Anode; Pins 2 and 3 = Cathode (internally connected).

Manufacturer

- Manufacturer: MikroTik (RouterBOARD)
- What kind of company: A Latvian networking hardware and software company that designs and sells routers, switches, wireless devices, and develops RouterOS/RouterBOARD products.

Application

RB751S40T5G is a fixed 4.0V LDO regulator in a small SOT-23-5 package. Common applications: power rails for microcontrollers, sensors, RF modules, and EEPROMs in portable/embedded electronics; IoT devices and wearables; consumer electronics; and automotive/industrial sensor systems needing a compact, low-quiescent 4V supply.

Equivalent

Exact equivalents depend on the device specs. RB751S40T5G is a ROHM buck regulator with ~40 V input; equivalents vary by output voltage/current, package, and features. Please provide: output voltage, max current, package, and switching frequency. Then I can give precise substitutes from TI, Analog Devices, On Semi, Microchip, etc., or guide you through distributor cross-references.