BAS40-13-F Equivalent & Substitute Parts

Part Overview

The BAS40-13-F is a Schottky diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating packaging and availability constraints.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 40 mA	V
Reverse Recovery Time (trr)	5	ns
Current - Reverse Leakage @ Vr	200 nA @ 30 V	nA
Capacitance @ Vr, F	5 pF @ 0V, 1MHz	pF
Operating Temperature - Junction	-55 to 125	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BAS40-13-F is determined by equivalence in the following critical parameters:

Voltage Rating: 40 V DC reverse voltage (Vr) maximum
Current Rating: 200 mA average rectified current (Io)
Forward Voltage: 1 V maximum at 40 mA forward current
Reverse Recovery Time: 5 ns
Reverse Leakage Current: 200 nA at 30 V
Package Type: SOT-23-3 surface mount configuration
Technology: Schottky diode topology
Temperature Range: -55°C to 125°C junction operating range

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (functionally compatible with noted configuration differences).

Parameter Comparison

Parameter	BAS40-13-F	BAS40Q-7-F	BAS40-04-TP	CDBT-40-G
Manufacturer	Diodes Incorporated	Diodes Incorporated	Micro Commercial Co	Comchip Technology
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V	40 V
Current - Average Rectified (Io)	200 mA	200 mA	200 mA (per Diode)	200 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 40 mA	1 V @ 40 mA	1 V @ 40 mA	1 V @ 40 mA
Reverse Recovery Time (trr)	5 ns	5 ns	5 ns	5 ns
Current - Reverse Leakage @ Vr	200 nA @ 30 V	200 nA @ 30 V	200 nA @ 30 V	200 nA @ 30 V
Package / Case	SOT-23-3	SOT-23-3	SOT-23	SOT-23-3
Operating Temperature - Junction (Max)	125°C	125°C	125°C	125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	—	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)

Engineering Selection Recommendations

BAS40Q-7-F (Diodes Incorporated): This part is a parametric equivalent to the BAS40-13-F with identical electrical specifications and operating temperature range. The BAS40Q-7-F carries active product status and includes AEC-Q101 automotive qualification. This part is supplied in Tape & Reel packaging and is suitable for direct substitution in applications requiring automotive-grade reliability.

BAS40-04-TP (Micro Commercial Co): This manufacturer-recommended alternative is a diode array configured as 1 pair series connection, maintaining the same per-diode electrical ratings as the BAS40-13-F. The part is active and supplied in Cut Tape and Digi-Reel packaging. Circuit design must account for the series-connected diode pair configuration when implementing this substitute.

CDBT-40-G (Comchip Technology): This part is a parametric equivalent with identical electrical specifications and SOT-23-3 packaging. The CDBT-40-G carries active product status and is supplied in Tape & Reel packaging. All three substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can BAS40Q-7-F be used as a direct replacement for BAS40-13-F?

A: Yes. The BAS40Q-7-F maintains identical electrical specifications including voltage rating, current rating, forward voltage, reverse recovery time, and reverse leakage current. Both parts use SOT-23-3 packaging. The primary difference is product status (active versus obsolete) and automotive qualification of the BAS40Q-7-F.

Q: What is the key difference between BAS40-04-TP and the other substitutes?

A: The BAS40-04-TP is configured as a diode array with 1 pair series connection, whereas the BAS40-13-F, BAS40Q-7-F, and CDBT-40-G are single diodes. Per-diode electrical ratings are equivalent, but circuit implementation must account for the series configuration and resulting voltage division across the diode pair.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (BAS40Q-7-F, BAS40-04-TP, and CDBT-40-G) are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: What packaging options are available for these substitutes?

A: BAS40Q-7-F is supplied in Tape & Reel (TR) packaging. BAS40-04-TP is supplied in Cut Tape (CT) and Digi-Reel® packaging. CDBT-40-G is supplied in Tape & Reel (TR) packaging. Packaging selection depends on procurement volume and assembly process requirements.

Q: Do all substitutes operate across the same temperature range?

A: Yes. All substitute parts operate across the -55°C to 125°C junction temperature range, matching the BAS40-13-F specification.

Q: Is automotive qualification required for my application?

A: The BAS40Q-7-F includes AEC-Q101 automotive qualification, while BAS40-04-TP and CDBT-40-G do not list this certification. Selection depends on application requirements and end-use environment specifications.

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