BAW56TA Equivalent & Substitute Parts

Part Overview

The BAW56TA 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 BAW56TA is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production and field replacements. Substitute parts are selected based on matching or exceeding electrical performance parameters while maintaining mechanical compatibility with the SOT-23-3 package footprint.

Substiute Parts

BAW56TA

Diodes IncorporatedIn Stock: 3909BAW56TA Datasheet

Current PartRFQ

BAW56-7-F

Diodes IncorporatedIn Stock: 35451BAW56-7-F Datasheet

DirectRFQ

BAW56Q-13-F

Diodes IncorporatedIn Stock: 10114BAW56Q-13-F Datasheet

Parametric EquivalentRFQ

BAW56,215

Nexperia USA Inc.In Stock: 5825BAW56,215 Datasheet

MFR RecommendedRFQ

BAW56,235

Nexperia USA Inc.In Stock: 160282BAW56,235 Datasheet

MFR RecommendedRFQ

BAW56-TP

Micro Commercial CoIn Stock: 47601BAW56-TP Datasheet

MFR RecommendedRFQ

MMBD4148CA-TP

Micro Commercial CoIn Stock: 47663MMBD4148CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BAW56TA are grouped into two categories based on electrical parameter compatibility:

Direct Electrical Equivalents (Identical Ratings): Parts that maintain all critical electrical parameters: 75 V reverse voltage, 300 mA average rectified current, 1.25 V forward voltage at 150 mA, 4 ns reverse recovery time, and fast recovery speed classification. These parts are mechanically and electrically interchangeable with the BAW56TA within the same circuit application.

Parametric Equivalents (Enhanced or Reduced Ratings): Parts that differ in one or more electrical parameters but remain functionally compatible. Differences include higher reverse voltage ratings (90 V), reduced average rectified current (215 mA or 250 mA or 200 mA), or modified forward voltage specifications. These parts are suitable for applications where the BAW56TA specifications exceed circuit requirements or where enhanced performance is acceptable.

Key Parameters Determining Substitution:

• Diode configuration (1 Pair Common Anode)
• Reverse voltage rating (75 V minimum)
• Average rectified current per diode (300 mA minimum for direct equivalents)
• Reverse recovery time (4 ns)
• Package type (SOT-23-3 / TO-236-3)
• Surface mount mounting type

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

BAW56-7-F (Diodes Incorporated) is the primary direct substitute for BAW56TA. Both parts share identical electrical specifications: 75 V reverse voltage, 300 mA average rectified current, 1.25 V forward voltage at 150 mA, and 4 ns reverse recovery time. BAW56-7-F is active in production and ROHS3 compliant, addressing the obsolescence and compliance limitations of the BAW56TA. Packaging differs only in format (Tape & Reel versus loose component).

BAW56Q-13-F (Diodes Incorporated) provides identical electrical performance with automotive-grade qualification (AEC-Q101) and a narrower operating temperature range (-55°C to 150°C versus -65°C to 150°C). This part is suitable for applications requiring automotive-grade components.

For Applications with Reduced Current Requirements:

BAW56-TP (Micro Commercial Co) operates at 75 V reverse voltage with 250 mA average rectified current per diode, representing a 50 mA reduction from the BAW56TA specification. This part is suitable for circuits where the full 300 mA rating is not required. Forward voltage is specified at 10 mA rather than 150 mA.

MMBD4148CA-TP (Micro Commercial Co) operates at 75 V reverse voltage with 200 mA average rectified current per diode. This part is classified as small signal with speed ≤ 200 mA, differing from the fast recovery classification of the BAW56TA. Use this part only in applications where small signal operation is acceptable.

For Applications with Enhanced Voltage Rating:

BAW56,215 and BAW56,235 (Nexperia USA Inc.) both provide 90 V reverse voltage with 215 mA average rectified current per diode. These parts are automotive-grade (AEC-Q101 qualified) and suitable for circuits requiring higher voltage margin. The reduced current rating (215 mA versus 300 mA) must be verified against circuit requirements. BAW56,235 offers higher inventory availability in Tape & Reel packaging.

Compliance Considerations:

All substitute parts except BAW56TA are ROHS3 compliant. For applications requiring RoHS compliance, any of the listed substitutes are acceptable. For legacy systems requiring non-compliant components, BAW56TA inventory remains available.

Frequently Asked Questions (FAQ)

Q: Can BAW56-7-F directly replace BAW56TA in existing designs?

A: Yes. BAW56-7-F is electrically and mechanically identical to BAW56TA. Both parts feature 75 V reverse voltage, 300 mA average rectified current, 1.25 V forward voltage at 150 mA, and SOT-23-3 packaging. The only difference is packaging format (Tape & Reel versus loose component) and product status (Active versus Obsolete).

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

A: Both parts are electrically identical with 75 V reverse voltage and 300 mA average rectified current. BAW56Q-13-F is automotive-grade (AEC-Q101 qualified) with operating temperature range -55°C to 150°C, compared to BAW56-7-F at -65°C to 150°C. Select BAW56Q-13-F for automotive applications requiring AEC-Q101 qualification.

Q: Can I use BAW56,215 or BAW56,235 as substitutes for BAW56TA?

A: These parts are functionally compatible but not direct equivalents. They provide higher reverse voltage (90 V versus 75 V) but reduced average rectified current (215 mA versus 300 mA). Use these parts only if circuit requirements allow reduced current capacity and benefit from enhanced voltage margin. Both are automotive-grade (AEC-Q101 qualified).

Q: What is the difference between BAW56-TP and MMBD4148CA-TP?

A: Both parts operate at 75 V reverse voltage but differ in current rating and speed classification. BAW56-TP provides 250 mA average rectified current with fast recovery characteristics. MMBD4148CA-TP provides 200 mA average rectified current with small signal classification (≤ 200 mA). Select BAW56-TP for applications requiring higher current capacity and fast recovery performance.

Q: Are all substitute parts available in the same packaging as BAW56TA?

A: All substitute parts use SOT-23-3 / TO-236-3 surface mount package, ensuring mechanical compatibility. Packaging format differs: BAW56TA is supplied loose, while BAW56-7-F, BAW56Q-13-F, BAW56-TP, and MMBD4148CA-TP are supplied in Tape & Reel format. BAW56,215 is available in Cut Tape & Digi-Reel format, and BAW56,235 is available in Tape & Reel format.

Q: Which substitute part has the highest inventory availability?

A: BAW56,235 (Nexperia USA Inc.) has the highest inventory with 160,200 pieces in stock. BAW56-7-F (Diodes Incorporated) has 35,400 pieces available. Both are active production parts with ROHS3 compliance.

Q: Can I use these substitutes in high-temperature applications?

A: All substitute parts support maximum junction temperature of 150°C. Operating temperature ranges vary: BAW56-7-F operates -65°C to 150°C, BAW56Q-13-F operates -55°C to 150°C, BAW56-TP operates -55°C to 150°C, and MMBD4148CA-TP operates -55°C to 150°C. Verify that the selected part's minimum operating temperature meets circuit requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant. The original BAW56TA is RoHS non-compliant. For applications requiring RoHS compliance, any substitute part is acceptable.