CDBER54-HF Schottky Diode 30V 200mA Equivalent & Substitute Parts

Part Overview

The CDBER54-HF is a Schottky rectifier diode manufactured by Comchip Technology, rated for 30V DC reverse voltage and 200mA average rectified current in a 0503/SOD-723F surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and repair applications. Substitute parts must maintain electrical performance within the specified parameter ranges while meeting current product availability and compliance requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max)	1	V @ 100-200 mA
Reverse Recovery Time (trr)	5	ns
Package / Case	0503 (1308 Metric)	SOD-723F
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	125	°C
Technology	Schottky	—

Substitute Part Grouping Explanation

Substitution eligibility for CDBER54-HF is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 30V
Current - Average Rectified (Io): 200mA
Package / Case: 0503 (1308 Metric) / SOD-723F
Mounting Type: Surface Mount
Technology: Schottky
Reverse Recovery Time (trr): 5ns
Operating Temperature - Junction (Max): 125°C

Allowable Variations:

Voltage - Forward (Vf) (Max): Specified at different measurement currents (100mA vs. 200mA) with maximum value of 1V
Current - Reverse Leakage @ Vr: Ranges from 2µA to 500nA at 25V (lower leakage is acceptable)
Product Status: Active substitutes preferred over obsolete

All identified substitute parts meet these criteria and are manufactured by Comchip Technology.

Parameter Comparison

Parameter	CDBER54-HF (Main)	CDBER42	CDBER43	CDBER54
Manufacturer	Comchip Technology	Comchip Technology	Comchip Technology	Comchip Technology
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	30V	30V	30V	30V
Current - Average Rectified (Io)	200mA	200mA	200mA	200mA
Voltage - Forward (Vf) (Max) @ If	1V @ 100mA	1V @ 200mA	1V @ 200mA	1V @ 100mA
Reverse Recovery Time (trr)	5ns	5ns	5ns	5ns
Current - Reverse Leakage @ Vr	2µA @ 25V	500nA @ 25V	500nA @ 25V	2µA @ 25V
Capacitance @ Vr, F	10pF @ 1V, 1MHz	10pF @ 1V, 1MHz	10pF @ 1V, 1MHz	10pF @ 1V, 1MHz
Package / Case	0503 (1308 Metric)	0503 (1308 Metric)	0503 (1308 Metric)	0503 (1308 Metric)
Supplier Device Package	0503/SOD-723F	0503/SOD-723F	0503/SOD-723F	0503/SOD-723F
Operating Temperature - Junction (Max)	125°C	125°C	125°C	125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: CDBER54

CDBER54 is the direct equivalent to CDBER54-HF with identical electrical specifications and forward voltage characteristics (1V @ 100mA). This part carries Active product status, ensuring long-term availability and supply chain continuity. CDBER54 maintains full compliance with ROHS3, REACH, and MSL requirements. Packaging is supplied as Tape & Reel (TR), suitable for automated assembly processes.

Secondary Substitutes: CDBER42 and CDBER43

CDBER42 and CDBER43 are parametrically equivalent alternatives with improved reverse leakage characteristics (500nA vs. 2µA @ 25V). Both parts are Active status products with identical voltage, current, and package specifications. Forward voltage is specified at 200mA rather than 100mA, remaining within the 1V maximum rating. These substitutes are suitable for applications where lower leakage current provides performance benefits. Both are supplied as Tape & Reel (TR).

Compliance and Regulatory Status

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL Level 1 (Unlimited moisture sensitivity). No regulatory or compliance barriers exist for substitution in applications originally designed for CDBER54-HF.

Frequently Asked Questions (FAQ)

Q: Can CDBER42 or CDBER43 be used as direct replacements for CDBER54-HF?

A: Yes. CDBER42 and CDBER43 meet all mandatory electrical parameters: 30V reverse voltage, 200mA current rating, 5ns reverse recovery time, and identical 0503/SOD-723F package. The difference in reverse leakage current (500nA vs. 2µA) represents an improvement in performance. Forward voltage specifications differ only in measurement current (200mA vs. 100mA) but remain within the 1V maximum rating.

Q: What is the difference between CDBER54 and CDBER54-HF?

A: CDBER54-HF is the obsolete variant. CDBER54 is the active production equivalent with identical electrical specifications and forward voltage characteristics. CDBER54 should be selected for new designs and ongoing production to ensure supply availability.

Q: Are there packaging differences between these substitutes?

A: CDBER54-HF packaging is not specified in the provided data. CDBER42, CDBER43, and CDBER54 are all supplied as Tape & Reel (TR). All use the identical 0503/SOD-723F surface mount package, ensuring mechanical and electrical compatibility on PCB assemblies.

Q: Do these substitutes meet environmental and compliance requirements?

A: All substitute parts are ROHS3 compliant, REACH Unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. No additional environmental or regulatory considerations apply to substitution.

Q: Which substitute should be selected for new designs?

A: CDBER54 is recommended for new designs as the direct active equivalent with matching forward voltage specifications. CDBER42 or CDBER43 may be selected if lower reverse leakage current provides specific circuit performance benefits.

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