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CDBHM2100L-HF

100V 1A SMD bridge rectifier, 1.0V Vf, MINI2DIP, halogen-free, -55 to +150°C

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Manufacturer Part：

CDBHM2100L-HF

Package：

MINI2DIP (4.5 x 3.0 x 2.1 mm, SMD)

Description

Product Overview

The CDBHM2100L-HF is a 100V surface mount bridge rectifier from Comchip Technology, housed in a compact MINI2DIP package. This single-phase bridge rectifier is rated at 1A average forward current with a peak forward voltage of 1.0V per element. The HF suffix denotes the halogen-free and lead-free green packaging variant, meeting modern environmental requirements while providing reliable AC-to-DC rectification in a small footprint.

Key Specifications

Max Reverse Voltage	100 V
Average Forward Current	1 A
Peak Forward Voltage (per element)	1.0 V
Peak Reverse Current	5 μA @ 100V
Peak Surge Current	30 A
Operating Temperature	-55°C to +150°C
Package	MINI2DIP (SMD)
Configuration	Single Phase, 4 Diodes
Halogen-Free	Yes (HF suffix)

Features

Compact MINI2DIP surface mount package for space-saving designs
Low forward voltage drop of 1.0V for high efficiency
Halogen-free and lead-free green packaging (HF suffix)
High peak surge current rating of 30A for robust operation
Wide operating temperature range from -55°C to +150°C
Optimized for AC-DC power supply rectification

Applications

AC-DC switching power supply input rectification
Offline power converter bridge rectifier
Home appliance power supply
LED driver AC input rectification
Consumer electronics power adapters

Product Introduction:CDBHM2100L-HF Product Introduction

The Comchip Technology CDBHM2100L-HF is a single-phase surface mount bridge rectifier in a compact MINI2DIP package, designed for AC-to-DC power conversion in space-constrained applications. Rated at 100V maximum repetitive reverse voltage and 1A average forward current, this bridge rectifier provides full-wave rectification using four internally connected silicon diodes in a Graetz bridge configuration. The low 1.0V peak forward voltage per element minimizes power dissipation and improves conversion efficiency. The HF suffix indicates halogen-free and lead-free green packaging that meets IEC 61249-2-21 and RoHS requirements. The MINI2DIP package offers a significantly smaller footprint than traditional DIP bridge rectifiers.

Working Principle:CDBHM2100L-HF Working Principle

The CDBHM2100L-HF bridge rectifier converts single-phase AC input to pulsating DC output using four diodes arranged in a Graetz bridge configuration. During the positive half-cycle of the AC input, two diagonally opposite diodes conduct, allowing current to flow through the load in one direction. During the negative half-cycle, the other two diodes conduct, maintaining the same current direction through the load. This full-wave rectification doubles the ripple frequency compared to half-wave rectification, simplifying downstream filtering. Each diode in the bridge drops approximately 1.0V when conducting, resulting in a total forward voltage drop of approximately 2.0V (two diodes in series per half-cycle). The 30A peak surge current rating accommodates initial power-on capacitor charging transients.

Pin Description:CDBHM2100L-HF Pin Definition and Functions

Pin	Name	Type	Function
1	AC Input 1	Input	AC input connection 1
2	DC+	Output	Positive DC output
3	AC Input 2	Input	AC input connection 2
4	DC-	Output	Negative DC output (ground)

Application Scenarios:In which products and applications isCDBHM2100L-HF used

AC-DC switching power supply input bridge rectifier
Offline flyback converter AC input stage
Home appliance and white goods power supply
LED lighting driver AC input rectification
Consumer electronics power adapter and charger

Alternative Models:What chips are recommended as replacements for CDBHM2100L-HF

Manufacturer	Part Number	Package	Notes
Diodes Inc	ABS10	MBS-4	100V 1A bridge, similar spec
Comchip	CDBHM2100G-HF	MINI2DIP	Same device, G marking variant
ON Semiconductor	MB1S	MBS-4	100V 1A SMD bridge
Vishay	MB1S-E3/45	MBS-4	100V 1A bridge rectifier
Comchip	CDBHM2200L-HF	MINI2DIP	200V variant, same series