BAW56-7 Equivalent & Substitute Parts

Part Overview

The BAW56-7 is a general-purpose diode array manufactured by Diodes Incorporated, configured as 1 pair common anode with 75 V reverse voltage rating and 300 mA average rectified current per diode. The device is housed in a SOT-23-3 surface mount package and features fast recovery characteristics with 4 ns reverse recovery time.

The BAW56-7 carries a Last Time Buy product status, indicating that this specific part number will no longer be manufactured. Equivalent and substitute parts are necessary to ensure continued design support, maintain supply chain continuity, and provide alternative sourcing options for new production runs and design revisions.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Anode	—
Voltage - DC Reverse (Vr) (Max)	75	V
Current - Average Rectified (Io) (per Diode)	300	mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	2.5 µA @ 75 V	µA
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BAW56-7 is determined by the following critical parameters:

Electrical Parameters:

Diode configuration (1 pair common anode)
Maximum reverse voltage (Vr)
Average rectified current per diode (Io)
Forward voltage characteristics (Vf)
Reverse recovery time (trr)
Reverse leakage current

Mechanical Parameters:

Surface mount package type (SOT-23-3 / TO-236-3)
Pin configuration compatibility

Compliance Parameters:

RoHS3 compliance
MSL rating

Substitute parts are grouped into three categories based on electrical equivalence:

Direct Equivalents: Parts with identical electrical specifications and packaging, differing only in packaging format (tape & reel vs. cut tape) or product status.

Parametric Equivalents: Parts with identical core electrical specifications but different operating temperature ranges or automotive qualifications.

Functional Alternatives: Parts with the same configuration and package but with variations in voltage rating, current rating, or speed classification that remain compatible within the application's design margins.

Parameter Comparison

Parameter	BAW56-7	BAW56-7-F	BAW56Q-13-F	BAW56,215	BAW56,235	BAW56-TP	BAW56_R1_00001
Manufacturer	Diodes Inc.	Diodes Inc.	Diodes Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Micro Commercial Co	Panjit International Inc.
Diode Configuration	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode
Voltage - DC Reverse (Vr) (Max)	75 V	75 V	75 V	90 V	90 V	75 V	75 V
Current - Average Rectified (Io) (per Diode)	300 mA	300 mA	300 mA	215 mA	215 mA	250 mA	150 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	855 mV @ 10 mA	1.25 V @ 150 mA
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Small Signal ≤ 200mA, Any Speed
Reverse Recovery Time (trr)	4 ns	4 ns	4 ns	4 ns	4 ns	4 ns	4 ns
Current - Reverse Leakage @ Vr	2.5 µA @ 75 V	2.5 µA @ 75 V	2.5 µA @ 75 V	500 nA @ 80 V	500 nA @ 80 V	2.5 µA @ 75 V	2.5 µA @ 75 V
Operating Temperature - Junction	-65 to 150°C	-65 to 150°C	-55 to 150°C	Max 150°C	Max 150°C	-55 to 150°C	-55 to 150°C
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active
Automotive Grade	—	—	AEC-Q101	AEC-Q101	AEC-Q101	—	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

BAW56-7-F is the direct equivalent to BAW56-7, offering identical electrical performance with 75 V reverse voltage, 300 mA average rectified current, and 4 ns reverse recovery time. The primary difference is packaging format (tape & reel) and active product status. This part is recommended as the primary replacement for BAW56-7 due to continued manufacturing support and equivalent performance.

Parametric Equivalent with Automotive Qualification:

BAW56Q-13-F maintains identical electrical specifications to BAW56-7 but includes AEC-Q101 automotive qualification and operates over a narrower temperature range (-55°C to 150°C versus -65°C to 150°C). This part is suitable for applications requiring automotive-grade components with equivalent electrical performance.

Higher Voltage Alternatives (Nexperia):

BAW56,215 and BAW56,235 provide 90 V reverse voltage rating with reduced current capacity (215 mA per diode) and lower reverse leakage current (500 nA @ 80 V). Both parts carry AEC-Q101 automotive qualification. These parts are suitable for applications where higher voltage margin is required, provided the 215 mA current rating meets design requirements. BAW56,235 offers higher inventory availability in tape & reel format.

Current-Reduced Alternative (Micro Commercial Co):

BAW56-TP provides 75 V reverse voltage with 250 mA average rectified current, representing a 50 mA reduction from BAW56-7. This part maintains fast recovery characteristics and is suitable for applications with lower current requirements.

Current-Limited Alternative (Panjit International Inc.):

BAW56_R1_00001 provides 75 V reverse voltage with 150 mA average rectified current and small signal speed classification. This part is suitable only for applications with significantly reduced current requirements and where small signal switching characteristics are acceptable.

Frequently Asked Questions (FAQ)

Q: Can BAW56-7-F be used as a direct replacement for BAW56-7?

A: Yes. BAW56-7-F is electrically identical to BAW56-7, with the same 75 V reverse voltage, 300 mA average rectified current, and 4 ns reverse recovery time. The primary difference is packaging format (tape & reel) and active manufacturing status. Both parts are housed in SOT-23-3 packages with identical pin configurations.

Q: What is the difference between BAW56-7 and BAW56Q-13-F?

A: BAW56Q-13-F maintains identical electrical specifications but includes AEC-Q101 automotive qualification and operates over a narrower temperature range (-55°C to 150°C versus -65°C to 150°C). Selection depends on whether automotive qualification is required for the application.

Q: Can BAW56,215 or BAW56,235 replace BAW56-7?

A: These parts are functionally compatible but with design trade-offs. Both offer higher reverse voltage (90 V) but reduced current capacity (215 mA versus 300 mA). They also feature lower reverse leakage current and AEC-Q101 automotive qualification. Substitution is valid only if the application can operate within the 215 mA current limit and does not require the full 300 mA capacity.

Q: What are the packaging differences among substitute parts?

A: All substitute parts use the SOT-23-3 surface mount package with identical pin configuration. Packaging format differences include tape & reel (TR) and cut tape (CT) options, which affect handling and assembly processes but not electrical performance or physical footprint.

Q: Is BAW56-TP suitable as a replacement for BAW56-7?

A: BAW56-TP is suitable only if the application can operate with 250 mA average rectified current instead of 300 mA. The 50 mA reduction in current capacity may be acceptable for current-limited applications. All other electrical parameters, including 75 V reverse voltage and 4 ns reverse recovery time, are equivalent.

Q: When should BAW56_R1_00001 be considered?

A: BAW56_R1_00001 is suitable only for applications with significantly reduced current requirements (150 mA maximum). This part features small signal speed classification rather than fast recovery characteristics. Substitution is valid only when current demand is confirmed to be below 150 mA and small signal switching performance is acceptable.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and MSL rating of 1 (Unlimited), matching the environmental and moisture sensitivity requirements of BAW56-7.

Q: What is the significance of Last Time Buy status for BAW56-7?

A: Last Time Buy status indicates that BAW56-7 will no longer be manufactured after existing inventory is depleted. Designs should transition to an active alternative such as BAW56-7-F to ensure long-term supply chain continuity and support.

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