CDBM1100-HF Equivalent & Substitute Parts

Part Overview

The CDBM1100-HF is a Schottky rectifier diode manufactured by Comchip Technology, rated for 100 V DC reverse voltage and 1 A average rectified current in a Surface Mount Mini SMA/SOD-123 package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when alternative manufacturers offer diodes with matching or superior electrical characteristics within the same voltage and current ratings, enabling design flexibility, supply chain optimization, and inventory management across multiple sourcing channels.

Substiute Parts

CDBM1100-HF

Comchip TechnologyIn Stock: 748CDBM1100-HF Datasheet

Current PartRFQ

PMEG10010ELRX

Nexperia USA Inc.In Stock: 53483PMEG10010ELRX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDBM1100-HF is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io): 1 A
• Technology: Schottky
• Mounting Type: Surface Mount
• RoHS3 Compliance Status

Allowable Parameter Variations: Substitute parts may exhibit improved or equivalent performance in the following characteristics without compromising circuit functionality:

• Voltage - Forward (Vf) (Max) @ If: Equal or lower values are acceptable
• Current - Reverse Leakage @ Vr: Equal or lower values are acceptable
• Capacitance @ Vr, F: Equal or lower values are acceptable
• Operating Temperature - Junction (Max): Equal or higher maximum ratings are acceptable
• Package / Case: SOD-123T and SOD-123W are mechanically compatible Surface Mount packages within the Mini SMA/SOD-123 family

The PMEG10010ELRX from Nexperia USA Inc. qualifies as a direct substitute based on matching voltage, current, technology, and compliance requirements, with superior performance in forward voltage drop, reverse leakage current, and junction temperature rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CDBM1100-HF Select the CDBM1100-HF when Comchip Technology supply chain availability is confirmed and design specifications do not require enhanced performance margins. This part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute Selection: PMEG10010ELRX The PMEG10010ELRX from Nexperia USA Inc. is a qualified substitute offering superior electrical performance across multiple parameters. This part is recommended when:

• Enhanced forward voltage efficiency is required (770 mV vs. 850 mV @ 1 A)
• Lower reverse leakage current is beneficial for circuit design (150 nA vs. 500 µA @ 100 V)
• Higher junction temperature rating provides thermal margin (175°C vs. 150°C maximum)
• Nexperia supply chain channels provide better availability or lead time

Both parts maintain identical voltage and current ratings, Schottky technology classification, Surface Mount mounting type, and RoHS3 compliance status. Package compatibility exists between SOD-123T and SOD-123W within the Mini SMA/SOD-123 family for Surface Mount applications.

Frequently Asked Questions (FAQ)

Q: Can PMEG10010ELRX directly replace CDBM1100-HF in existing PCB designs?

A: Yes. Both diodes share identical voltage (100 V), current (1 A), and technology (Schottky) specifications. The SOD-123W package (PMEG10010ELRX) and SOD-123T package (CDBM1100-HF) are mechanically compatible Surface Mount packages within the Mini SMA/SOD-123 family. PCB footprints designed for SOD-123T will accommodate SOD-123W components without modification.

Q: What are the key performance differences between these parts?

A: The PMEG10010ELRX demonstrates superior performance in three areas: forward voltage drop (80 mV lower at 1 A), reverse leakage current (significantly lower at 150 nA vs. 500 µA), and maximum junction temperature (175°C vs. 150°C). These improvements reduce power dissipation and provide enhanced thermal headroom in high-temperature applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both CDBM1100-HF and PMEG10010ELRX are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting identical environmental and regulatory requirements.

Q: What determines substitution eligibility for Schottky rectifier diodes?

A: Substitution eligibility is determined by matching voltage rating (Vr), current rating (Io), technology type (Schottky), mounting method (Surface Mount), and compliance certifications (RoHS3). Substitute parts with equal or superior performance in forward voltage, reverse leakage, and temperature rating are acceptable without circuit redesign.

Q: Can I use PMEG10010ELRX if my design specifies CDBM1100-HF?

A: Yes, provided the design does not explicitly restrict substitution. The PMEG10010ELRX meets or exceeds all electrical specifications of the CDBM1100-HF. Verify that your procurement and quality documentation permits cross-manufacturer substitution before implementation.

Q: What is the difference between SOD-123T and SOD-123W packages?

A: Both are Surface Mount packages within the Mini SMA/SOD-123 family with identical electrical performance. SOD-123W is a variant designation used by Nexperia. Mechanical compatibility is maintained for standard PCB footprints designed for SOD-123 packages.