CD214B-F3400 Equivalent & Substitute Parts Reference

Part Overview

The CD214B-F3400, manufactured by Bourns Inc., is a surface mount, fast-recovery general-purpose rectifier diode rated at 400V and 3A in the DO-214AA (SMB) package. The product status is Obsolete, making it necessary to identify alternative models with matching electrical and mechanical parameters for applications that require ongoing support or replenishment. Selection of substitutes must be based strictly on provided parametric compatibility and compliance details.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD214B-F3400
Manufacturer	Bourns Inc.
Category	Diodes, Rectifiers
Packaging	Tape & Reel (TR)
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	3A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 1 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V
Capacitance @ Vr, F	10pF @ 4V, 1MHz
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Supplier Device Package	SMB (DO-214AA)
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Affected

Substitute Part Grouping Explanation

Substitution logic is strictly based on the following key parameters: diode category (rectifiers), package type (DO-214AA/SMB or equivalent), voltage rating (400V max), average rectified current (3A), fast recovery performance (=< 500ns), reverse recovery time (trr), reverse leakage current, mounting type (surface mount), and compliance information (RoHS, MSL, REACH). Parts included below match these provided parameters for form, fit, and function at the device and application level.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Package / Case	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max)	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Mounting Type	Operating Temperature - Junction	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status
CD214B-F3400	Bourns Inc.	DO-214AA, SMB	400 V	3A	1.25 V @ 1 A	35 ns	5 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Affected
CD214B-FS3G	Bourns Inc.	2-SMD, No Lead	400 V	3A	1.25 V @ 3 A	35 ns	5 µA @ 400 V	Surface Mount	-65°C ~ 175°C	ROHS3 Compliant	1 (Unlimited)	REACH Affected
CGRB304-G	Comchip Technology	DO-214AA, SMB	400 V	3A	1.1 V @ 3 A	-	5 µA @ 400 V	Surface Mount	150°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ER3GB-TP	Micro Commercial Co	DO-214AA, SMB	400 V	3A	1.25 V @ 3 A	35 ns	5 µA @ 400 V	Surface Mount	-50°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ES3GBH	Taiwan Semiconductor Corp.	DO-214AA, SMB	400 V	3A	1.13 V @ 3 A	35 ns	10 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
S3GB-13-F	Diodes Incorporated	DO-214AA, SMB	400 V	3A	1.15 V @ 3 A	-	10 µA @ 400 V	Surface Mount	-65°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ES2GH	Taiwan Semiconductor Corp.	DO-214AA, SMB	400 V	2A	1.3 V @ 2 A	35 ns	10 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ES2GHE3_A/H	Vishay	DO-214AA, SMB	300 V	2A	1.1 V @ 2 A	35 ns	10 µA @ 50 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
S3GB	Taiwan Semiconductor Corp.	DO-214AA, SMB	400 V	3A	1.15 V @ 3 A	1.5 µs	10 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
STTH3R04U	STMicroelectronics	DO-214AA, SMB	400 V	3A	1.5 V @ 3 A	35 ns	5 µA @ 400 V	Surface Mount	175°C (Max)	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ER3GA_R1_00001	Panjit International Inc.	DO-214AA, SMB	400 V	3A	1.25 V @ 3 A	35 ns	1 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected
ES3GB	MDD	DO-214AA, SMB	400 V	3A	1.25 V @ 3 A	35 ns	5 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	-	REACH Unaffected
ES3GB-HF	Comchip Technology	DO-214AA, SMB	400 V	3A	1.25 V @ 3 A	35 ns	5 µA @ 400 V	Surface Mount	-55°C ~ 150°C	ROHS3 Compliant	1 (Unlimited)	-

Engineering Selection Recommendations

Substitute selection for the CD214B-F3400 must be based on matching product status (active part), RoHS3 compliance, identical or functionally equivalent package (DO-214AA/SMB or compatible 2-SMD), matching voltage and current ratings (400 V, 3A), fast-recovery speed, and surface mount capability as shown above. All listed alternatives meet or exceed MSL 1 (Unlimited), and are confirmed RoHS3 compliant with REACH details as specified in the table.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters for substituting the CD214B-F3400?
A1: Key parameters include voltage rating (400 V), current rating (3 A), reverse recovery time (35 ns), package type (DO-214AA/SMB or 2-SMD), mounting type (surface mount), reverse leakage current, RoHS compliance, and product status.

Q2: Are package variants like 2-SMD No Lead acceptable as substitutes?
A2: Package substitutions are valid per the allowed mechanical parameters, provided the mounting type is surface mount and the electrical ratings are compatible.

Q3: How does RoHS compliance affect substitute selection?
A3: RoHS3 compliant parts are required for environmental conformity, ensuring substitutes meet restricted materials regulations.

Q4: Why is REACH status listed in the comparison?
A4: REACH status indicates regulatory chemical compliance and may affect application requirements based on specific regional or customer needs.

Q5: Can lower current substitutes (such as 2A rated diodes) be used?
A5: Substitution is strictly determined by current rating. For 3A applications, only diodes rated for 3A (minimum) from the provided list are eligible.

Q6: What is the accepted moisture sensitivity level (MSL) for substitutes?
A6: All listed parts have MSL 1 (Unlimited) per provided data, suitable for standard surface mount processing.

Q7: Should reverse recovery time (trr) or speed be precisely matched?
A7: Only parts meeting the specified fast recovery and reverse recovery time per input data are listed as substitutes.

Q8: Is the supplier device package name relevant for selection?
A8: Yes, as it ensures form and fit compatibility and enables direct replacement on existing PCBs.

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