BAW 56 E6433 Equivalent & Substitute Parts

Part Overview

The BAW 56 E6433 is a general-purpose diode array manufactured by Infineon Technologies, configured as 1 pair common anode with 80 V reverse voltage rating and 200 mA average rectified current per diode. The device is housed in a Surface Mount TO-236-3 (SC-59, SOT-23-3) package and is classified as obsolete product status.

Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and component sourcing. Substitute parts maintain the same diode configuration, mounting type, and package footprint while offering comparable or enhanced electrical performance characteristics.

Key Parameters

Parameter	BAW 56 E6433 (Main Part)
Manufacturer	Infineon Technologies
Diode Configuration	1 Pair Common Anode
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io) (per Diode)	200 mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA
Reverse Recovery Time (trr)	4 ns
Current - Reverse Leakage @ Vr	150 nA @ 70 V
Operating Temperature - Junction (Max)	150°C
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BAW 56 E6433 are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

Diode Configuration: 1 Pair Common Anode (mandatory)
Mounting Type: Surface Mount (mandatory)
Package / Case: TO-236-3, SC-59, SOT-23-3 or SC-70, SOT-323 (pin-compatible alternatives)
Voltage - DC Reverse (Vr): Equal to or greater than 80 V
Current - Average Rectified (Io): Equal to or greater than 200 mA per diode
Operating Temperature - Junction: 150°C maximum or higher

Substitution Logic: Substitute parts are grouped into two categories based on package compatibility:

SOT-23-3 Package Substitutes (direct footprint replacement): Parts maintaining the identical TO-236-3/SC-59/SOT-23-3 package. These include BAW156,215; BAW156-7-F; BAW156-TP; BAW56,215; BAW56,235; and BAW56-7-F.
SOT-323 Package Substitutes (alternative package): Parts using SC-70/SOT-323 package (BAW56W,115 and BAW56W,135). These require PCB layout modification but maintain electrical compatibility and common anode configuration.

All substitute parts maintain active product status from manufacturers including Nexperia USA Inc., Diodes Incorporated, Micro Commercial Co, and NXP Semiconductors, ensuring long-term availability and supply chain stability.

Parameter Comparison

Parameter	BAW 56 E6433	BAW156,215	BAW156-7-F	BAW156-TP	BAW56,215	BAW56,235	BAW56-7-F	BAW56-TP	BAW56W,115	BAW56W,135
Manufacturer	Infineon	Nexperia USA Inc.	Diodes Inc.	Micro Commercial Co	Nexperia USA Inc.	Nexperia USA Inc.	Diodes Inc.	Micro Commercial Co	Nexperia USA Inc.	NXP Semiconductors
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	1 Pair Common Anode	1 Pair Common Anode	1 Pair Common Anode
Voltage - DC Reverse (Vr) (Max)	80 V	75 V	85 V	75 V	90 V	90 V	75 V	75 V	90 V	90 V
Current - Average Rectified (Io) (per Diode)	200 mA	160 mA	140 mA	160 mA	215 mA	215 mA	300 mA	250 mA	150 mA	150 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	1.25 V @ 150 mA	1.1 V @ 50 mA	Not specified	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA	855 mV @ 10 mA	1.25 V @ 150 mA	1.25 V @ 150 mA
Reverse Recovery Time (trr)	4 ns	3 µs	3 µs	3 µs	4 ns	4 ns	4 ns	4 ns	4 ns	4 ns
Current - Reverse Leakage @ Vr	150 nA @ 70 V	5 nA @ 75 V	5 nA @ 75 V	5 nA @ 75 V	500 nA @ 80 V	500 nA @ 80 V	2.5 µA @ 75 V	2.5 µA @ 75 V	500 nA @ 80 V	500 nA @ 80 V
Operating Temperature - Junction (Max)	150°C	150°C	150°C	150°C	150°C	150°C	150°C	150°C	150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	SC-70, SOT-323	SC-70, SOT-323
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Footprint Replacement (SOT-23-3 Package):

For applications requiring identical PCB footprint compatibility without layout modifications, the following parts are suitable:

BAW56,215 and BAW56,235 (Nexperia USA Inc.): Both parts exceed the BAW 56 E6433 specifications with 90 V reverse voltage and 215 mA current rating. These parts carry AEC-Q101 automotive qualification and are available in high inventory (5,800 and 160,200 units respectively). RoHS3 compliance is confirmed.
BAW56-7-F (Diodes Incorporated): Offers 75 V reverse voltage and 300 mA current rating with 4 ns reverse recovery time matching the original part. Active product status with 35,400 units in stock. RoHS3 compliant.
BAW56-TP (Micro Commercial Co): Provides 75 V reverse voltage and 250 mA current rating. Active status with 47,537 units available. RoHS3 compliant.

Alternative Package Substitutes (SOT-323 Package):

For designs where package size reduction is acceptable and PCB layout can be modified:

BAW56W,115 (Nexperia USA Inc.) and BAW56W,135 (NXP Semiconductors): Both use SC-70/SOT-323 package with 90 V reverse voltage and 150 mA current rating. These parts carry AEC-Q101 automotive qualification. Inventory levels are 4,300 and 211,085 units respectively. RoHS3 compliance confirmed.

Lower Current Alternatives (SOT-23-3 Package):

For applications with reduced current requirements:

BAW156,215 (Nexperia USA Inc.): 75 V reverse voltage, 160 mA current rating. AEC-Q100 automotive qualification. 39,586 units in stock. RoHS3 compliant.
BAW156-7-F (Diodes Incorporated): 85 V reverse voltage, 140 mA current rating. 125,100 units available. RoHS3 compliant.
BAW156-TP (Micro Commercial Co): 75 V reverse voltage, 160 mA current rating. 968 units in stock. Active status.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification and REACH compliance status equivalent to the original part.

Frequently Asked Questions (FAQ)

Q1: Can BAW156,215 directly replace BAW 56 E6433 in my circuit?

A: BAW156,215 maintains the same diode configuration (1 pair common anode), mounting type (surface mount), and package footprint (TO-236-3/SC-59/SOT-23-3). However, it has a lower reverse voltage rating (75 V vs. 80 V) and lower current rating (160 mA vs. 200 mA). Substitution is valid only if your circuit operates within these reduced specifications. Verify that your application does not require the full 80 V reverse voltage or 200 mA current capability.

Q2: What is the difference between BAW56,215 and BAW56,235?

A: Both parts are manufactured by Nexperia USA Inc. with identical electrical specifications: 90 V reverse voltage, 215 mA current rating, 1.25 V forward voltage at 150 mA, and 4 ns reverse recovery time. The primary difference is packaging: BAW56,215 is supplied in Cut Tape (CT) & Digi-Reel format, while BAW56,235 is supplied in Tape & Reel (TR) format. BAW56,235 has significantly higher inventory (160,200 units vs. 5,800 units). Select based on your procurement and assembly requirements.

Q3: Why do BAW56W,115 and BAW56W,135 use a different package (SOT-323)?

A: BAW56W,115 and BAW56W,135 use the SC-70/SOT-323 package, which is physically smaller than the TO-236-3/SOT-23-3 package. This package change requires PCB layout modification and is not a direct footprint replacement. However, it offers the same electrical functionality with 90 V reverse voltage and 150 mA current rating. Select this option only if your design can accommodate the smaller package footprint and you require the space savings.

Q4: Which substitute part has the highest current rating?

A: BAW56-7-F (Diodes Incorporated) offers the highest current rating at 300 mA per diode, compared to the original BAW 56 E6433 at 200 mA. This part maintains the SOT-23-3 package footprint and provides 4 ns reverse recovery time. It is suitable for applications requiring higher current capacity while maintaining the same physical footprint.

Q5: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are RoHS3 compliant. The original BAW 56 E6433 does not specify RoHS status, but all active substitute parts from Nexperia USA Inc., Diodes Incorporated, Micro Commercial Co, and NXP Semiconductors confirm RoHS3 compliance.

Q6: What is the significance of AEC-Q100 and AEC-Q101 qualifications?

A: AEC-Q100 and AEC-Q101 are automotive qualification standards. BAW156,215 carries AEC-Q100 qualification, while BAW56,215, BAW56,235, BAW56W,115, and BAW56W,135 carry AEC-Q101 qualification. These certifications indicate the parts have been tested and approved for automotive applications. Select AEC-qualified parts if your application requires automotive-grade reliability and traceability.

Q7: Can I use BAW156-7-F as a substitute if my circuit requires 80 V reverse voltage?

A: BAW156-7-F has an 85 V reverse voltage rating, which exceeds the 80 V requirement of the BAW 56 E6433. This part is suitable for your application. However, verify that your circuit design does not have any upper voltage limits that would be violated by the higher rating. The 140 mA current rating is lower than the original 200 mA, so confirm that your application current requirements do not exceed 140 mA per diode.

Q8: What is the difference in reverse recovery time between the original part and substitutes?

A: The BAW 56 E6433 has a reverse recovery time (trr) of 4 ns. Most substitute parts maintain this 4 ns specification (BAW56,215; BAW56,235; BAW56-7-F; BAW56-TP; BAW56W,115; BAW56W,135). However, BAW156,215, BAW156-7-F, and BAW156-TP have a reverse recovery time of 3 µs, which is significantly slower. This difference is critical for high-frequency switching applications. Use the 4 ns parts for high-speed circuits; use the 3 µs parts only if your application operates at lower frequencies where the slower recovery time is acceptable.

Q9: Which substitute part has the lowest reverse leakage current?

A: BAW156,215, BAW156-7-F, and BAW156-TP all have a reverse leakage current of 5 nA @ 75 V, which is lower than the original BAW 56 E6433 at 150 nA @ 70 V. This lower leakage is beneficial for low-power applications. BAW56,215 and BAW56,235 have 500 nA @ 80 V leakage, while BAW56-7-F and BAW56-TP have 2.5 µA @ 75 V leakage. Select based on your application's leakage current tolerance.

Q10: What inventory levels should I consider for long-term supply?

A: BAW56,235 has the highest inventory at 160,200 units, followed by BAW56W,135 at 211,085 units. These high inventory levels provide better long-term supply security. BAW156-7-F (125,100 units) and BAW56-7-F (35,400 units) also have substantial stock. Parts with lower inventory such as BAW56,215 (5,800 units), BAW56W,115 (4,300 units), and BAW156-TP (968 units) may require longer lead times or have limited availability. For production planning, prioritize parts with higher inventory levels to minimize supply chain risk.

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