Equivalent & Substitute Parts for CD214A-B240LF

Part Overview

The CD214A-B240LF is a Schottky rectifier diode manufactured by Bourns Inc., rated for 40 V DC reverse voltage and 2 A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The diode features fast recovery characteristics suitable for high-frequency switching applications and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 40 V
Capacitance @ Vr, F	200pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA
Operating Temperature - Junction	-55°C ~ 125°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CD214A-B240LF is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 2 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-214AC, SMA
Technology: Schottky

Direct Equivalents maintain all primary electrical specifications and identical package configuration, enabling pin-for-pin and functional replacement without circuit modification.

Similar Parts share the same voltage and current ratings with minor variations in forward voltage, reverse leakage, or capacitance characteristics. These parts are functionally compatible but may require circuit validation depending on application sensitivity to these parameters.

Current Rating Variants (1 A rated parts) are listed for reference only and are not direct substitutes due to reduced current capacity.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Leakage @ Vr	Capacitance @ Vr, F	Package	Operating Temp (Junction)	Product Status
CD214A-B240LF	Bourns Inc.	40 V	2 A	500 mV @ 2 A	500 µA @ 40 V	200pF @ 4V, 1MHz	DO-214AC, SMA	-55°C ~ 125°C	Obsolete
CD214A-B240R	Bourns Inc.	40 V	2 A	500 mV @ 2 A	200 µA @ 40 V	115pF @ 4V, 1MHz	2-SMD, No Lead	-55°C ~ 125°C	Active
B240A-13-F	Diodes Incorporated	40 V	2 A	500 mV @ 2 A	500 µA @ 40 V	200pF @ 40V, 1MHz	DO-214AC, SMA	-65°C ~ 150°C	Active
B240AQ-13-F	Diodes Incorporated	40 V	2 A	500 mV @ 2 A	500 µA @ 40 V	200pF @ 40V, 1MHz	DO-214AC, SMA	-65°C ~ 150°C	Active
B240A-M3/5AT	Vishay General Semiconductor - Diodes Division	40 V	2 A	550 mV @ 2 A	500 µA @ 40 V	Not specified	DO-214AC, SMA	-65°C ~ 150°C	Active
B240A-M3/61T	Vishay General Semiconductor - Diodes Division	40 V	2 A	550 mV @ 2 A	500 µA @ 40 V	Not specified	DO-214AC, SMA	-65°C ~ 150°C	Active
CDBA240-HF	Comchip Technology	40 V	2 A	500 mV @ 2 A	500 µA @ 40 V	Not specified	DO-214AC, SMA	-55°C ~ 125°C	Active
CDBA240LL-HF	Comchip Technology	40 V	2 A	350 mV @ 2 A	1 mA @ 40 V	Not specified	DO-214AC, SMA	-55°C ~ 100°C	Active
CDBA340L-HF	Comchip Technology	40 V	3 A	400 mV @ 3 A	1 mA @ 40 V	300pF @ 4V, 1MHz	DO-214AC, SMA	-50°C ~ 100°C	Active
B140-13-F	Diodes Incorporated	40 V	1 A	500 mV @ 1 A	500 µA @ 40 V	110pF @ 4V, 1MHz	DO-214AC, SMA	-65°C ~ 150°C	Active
B140Q-13-F	Diodes Incorporated	40 V	1 A	500 mV @ 1 A	500 µA @ 40 V	110pF @ 4V, 1MHz	DO-214AC, SMA	-65°C ~ 150°C	Active

Engineering Selection Recommendations

Direct Substitutes (Recommended for Obsolescence Replacement):

The following parts provide full electrical and mechanical equivalence to the CD214A-B240LF and are suitable for direct replacement:

B240A-13-F (Diodes Incorporated): Maintains identical electrical specifications with extended operating temperature range (-65°C ~ 150°C). Active product status with high inventory availability (125,300 pcs). RoHS3 compliant.
B240AQ-13-F (Diodes Incorporated): Identical electrical specifications to B240A-13-F with automotive-grade qualification (AEC-Q101). Extended operating temperature range. Active product status. RoHS3 compliant.
CDBA240-HF (Comchip Technology): Matches primary electrical specifications with identical forward voltage and reverse leakage. Active product status. RoHS3 compliant. Operating temperature range matches original part (-55°C ~ 125°C).

Compatible Alternatives (Functional Compatibility with Parameter Variations):

B240A-M3/5AT and B240A-M3/61T (Vishay General Semiconductor - Diodes Division): Both maintain 40 V / 2 A ratings with forward voltage of 550 mV @ 2 A (50 mV higher than original). Extended operating temperature range (-65°C ~ 150°C). Active product status. RoHS3 compliant. Suitable for applications where the increased forward voltage drop is acceptable.
CDBA240LL-HF (Comchip Technology): Offers improved forward voltage performance (350 mV @ 2 A) with higher reverse leakage (1 mA @ 40 V). Operating temperature range limited to -55°C ~ 100°C. Active product status. RoHS3 compliant. Suitable for low-power-loss applications within specified temperature range.

Not Recommended as Direct Substitutes:

CD214A-B240R (Bourns Inc.): Different package configuration (2-SMD, No Lead) versus original DO-214AC (SMA). Requires PCB layout modification.
B140-13-F and B140Q-13-F (Diodes Incorporated): Reduced current rating (1 A versus 2 A). Not suitable for applications requiring 2 A capacity.
CDBA340L-HF (Comchip Technology): Higher current rating (3 A) with different electrical characteristics. Not a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can I use B240A-13-F as a direct replacement for CD214A-B240LF?

A: Yes. B240A-13-F provides full electrical equivalence with identical voltage (40 V), current (2 A), and forward voltage (500 mV @ 2 A) specifications. Both use DO-214AC (SMA) package. The extended operating temperature range (-65°C ~ 150°C versus -55°C ~ 125°C) provides additional design margin. No circuit modification is required.

Q: What is the difference between B240A-13-F and B240AQ-13-F?

A: Both parts are electrically identical with matching 40 V / 2 A specifications and DO-214AC (SMA) package. B240AQ-13-F carries automotive-grade qualification (AEC-Q101) and is suitable for automotive applications. Selection depends on application requirements for automotive certification.

Q: Why do some substitute parts have different forward voltage specifications?

A: Forward voltage variation (500 mV to 550 mV @ 2 A) reflects manufacturing process differences between suppliers. Parts with higher forward voltage (B240A-M3/5AT, B240A-M3/61T at 550 mV) dissipate additional power. Selection should account for thermal design and power budget requirements.

Q: Can I use CDBA240LL-HF with its lower forward voltage (350 mV @ 2 A)?

A: CDBA240LL-HF is electrically compatible but exhibits higher reverse leakage (1 mA @ 40 V versus 500 µA @ 40 V) and narrower operating temperature range (-55°C ~ 100°C). Use only in applications where the lower forward voltage benefit justifies the increased leakage current and temperature limitations.

Q: Is the CD214A-B240R a suitable substitute?

A: CD214A-B240R is not recommended as a direct substitute. Although it maintains identical electrical specifications (40 V / 2 A), it uses a different package configuration (2-SMD, No Lead) compared to the original DO-214AC (SMA). PCB layout and footprint modifications would be required.

Q: What does RoHS3 compliance mean for substitution?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. All recommended substitute parts are RoHS3 compliant, ensuring regulatory alignment with the original CD214A-B240LF and compatibility with modern supply chain requirements.

Q: Can I use B140-13-F or B140Q-13-F as substitutes?

A: No. These parts are rated for 1 A average rectified current, compared to 2 A for the CD214A-B240LF. They are not suitable for applications requiring 2 A capacity and would result in component overstress or circuit malfunction.

Q: What is the significance of the operating temperature range difference?

A: The original CD214A-B240LF operates from -55°C ~ 125°C. Most substitute parts (B240A-13-F, B240AQ-13-F, B240A-M3/5AT, B240A-M3/61T) extend this to -65°C ~ 150°C, providing wider environmental operating margin. CDBA240-HF matches the original range. CDBA240LL-HF is limited to -55°C ~ 100°C. Selection should match application temperature requirements.

Q: Are there inventory considerations for substitute selection?

A: Yes. B240A-13-F has the highest inventory availability (125,300 pcs), ensuring supply continuity. B240AQ-13-F (14,162 pcs) and CDBA240LL-HF (142,234 pcs) also provide substantial stock. Parts with lower inventory (B240A-M3/5AT at 698 pcs, CDBA240-HF at 2,373 pcs) may have longer lead times.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message