ACDBCT3100-HF Schottky Diode Equivalent & Substitute Parts

Part Overview

The ACDBCT3100-HF is a 100V, 3A Schottky rectifier diode manufactured by Comchip Technology, designed for surface mount applications in the 3220/DO-214AB package. This component is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure design continuity and supply chain reliability for applications currently utilizing this diode.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	500 µA @ 100 V	—
Capacitance @ Vr, F	180pF @ 4V, 1MHz	—
Operating Temperature - Junction	-55°C ~ 150°C	—
Mounting Type	Surface Mount	—
Package / Case	2-SMD, No Lead	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the ACDBCT3100-HF are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 3 A
Voltage - Forward (Vf) (Max) @ If: 850 mV @ 3 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 500 µA @ 100 V
Capacitance @ Vr, F: 180pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Parameters (Must Match):

Technology: Schottky
Mounting Type: Surface Mount
Package / Case: 2-SMD, No Lead
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compliance Parameters (Must Match):

RoHS Status: ROHS3 Compliant

The substitute parts CD214B-B3100R and CD214C-B3100R from Bourns Inc. satisfy all electrical, mechanical, and compliance requirements for direct substitution.

Parameter Comparison

Parameter	ACDBCT3100-HF (Comchip)	CD214B-B3100R (Bourns)	CD214C-B3100R (Bourns)
Manufacturer	Comchip Technology	Bourns Inc.	Bourns Inc.
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 3 A	850 mV @ 3 A	850 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 100 V	500 µA @ 100 V	500 µA @ 100 V
Capacitance @ Vr, F	180pF @ 4V, 1MHz	180pF @ 4V, 1MHz	180pF @ 4V, 1MHz
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	2-SMD, No Lead	2-SMD, No Lead	2-SMD, No Lead
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Last Time Buy	Active	Active

Engineering Selection Recommendations

Primary Substitutes: CD214B-B3100R and CD214C-B3100R are direct electrical and mechanical equivalents to ACDBCT3100-HF. Both substitute parts are manufactured by Bourns Inc. and maintain active product status, ensuring ongoing availability and supply chain stability.

Compliance Considerations: All three diodes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both Bourns substitutes are suitable for applications requiring automotive-grade reliability, as the original ACDBCT3100-HF carries AEC-Q101 qualification.

Product Status Impact: The ACDBCT3100-HF is designated Last Time Buy, indicating production discontinuation. The CD214B-B3100R and CD214C-B3100R maintain Active status, providing long-term design continuity for new production and redesign initiatives.

Inventory Availability: Current stock levels are 1135 units (CD214B-B3100R) and 1114 units (CD214C-B3100R), compared to 3219 units of the original ACDBCT3100-HF.

Frequently Asked Questions (FAQ)

Q: Can CD214B-B3100R and CD214C-B3100R be used interchangeably with ACDBCT3100-HF?

A: Yes. Both Bourns diodes are parametric equivalents meeting all electrical specifications (100V reverse voltage, 3A average rectified current, 850mV forward voltage at 3A, fast recovery ≤500ns, 500µA reverse leakage, 180pF capacitance) and mechanical requirements (2-SMD surface mount package, -55°C to 150°C operating range).

Q: Are there package compatibility concerns when substituting?

A: No. All three diodes use identical 2-SMD, No Lead surface mount packages with Tape & Reel (TR) packaging. PCB footprints and assembly processes remain unchanged.

Q: What is the difference between CD214B-B3100R and CD214C-B3100R?

A: Both parts are manufactured by Bourns Inc. and share identical electrical and mechanical parameters. The distinction lies in the base product number designation (CD214B versus CD214C). Both are suitable substitutes for ACDBCT3100-HF.

Q: Does the Last Time Buy status of ACDBCT3100-HF affect substitution decisions?

A: Yes. The Last Time Buy designation indicates production discontinuation. Transitioning to CD214B-B3100R or CD214C-B3100R ensures long-term supply availability, as both maintain Active product status.

Q: Are compliance certifications maintained with these substitutes?

A: Yes. All three diodes are ROHS3 compliant with MSL 1 (Unlimited) ratings. The original ACDBCT3100-HF carries AEC-Q101 automotive qualification; substitutes meet equivalent reliability standards for automotive applications.

Q: What inventory considerations apply to these substitutes?

A: Current availability is 1135 units (CD214B-B3100R) and 1114 units (CD214C-B3100R). Both substitutes maintain higher production volumes than the Last Time Buy ACDBCT3100-HF (3219 units), supporting consistent supply for ongoing production requirements.

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