BAW56W/ZLF Equivalent & Substitute Parts

Part Overview

The BAW56W/ZLF is a general-purpose diode array manufactured by Nexperia USA Inc., configured as a 1 Pair Common Anode device rated for 90 V DC reverse voltage and 150 mA average rectified current per diode. The component is housed in an SC-70, SOT-323 surface mount package and meets automotive-grade specifications including AEC-Q101 qualification.

The BAW56W/ZLF is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array configuration.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Anode
Voltage - DC Reverse (Vr) (Max)	90 V
Current - Average Rectified (Io) (per Diode)	150 mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA
Reverse Recovery Time (trr)	4 ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V
Operating Temperature - Junction (Max)	150°C
Package / Case	SC-70, SOT-323
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
Technology	Standard

Substitute Part Grouping Explanation

Substitution of the BAW56W/ZLF is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters:

Diode configuration (1 Pair Common Anode)
Maximum DC reverse voltage (90 V)
Average rectified current per diode (150 mA)
Forward voltage drop (1.25 V @ 150 mA)
Reverse recovery time (4 ns)
Reverse leakage current (500 nA @ 80 V)
Maximum junction operating temperature (150°C)

Mechanical Parameters:

Package type (SC-70, SOT-323)
Surface mount mounting type

Compliance Parameters:

Automotive grade classification
AEC-Q101 qualification
RoHS3 compliance
REACH unaffected status

Parts meeting all specified electrical, mechanical, and compliance parameters are classified as direct substitutes.

Parameter Comparison

Parameter	BAW56W/ZLF (Main Part)	BAW56W,135 (Substitute)
Manufacturer	Nexperia USA Inc.	NXP Semiconductors
Product Status	Obsolete	Active
Diode Configuration	1 Pair Common Anode	1 Pair Common Anode
Voltage - DC Reverse (Vr) (Max)	90 V	90 V
Current - Average Rectified (Io) (per Diode)	150 mA (DC)	150 mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	1.25 V @ 150 mA
Reverse Recovery Time (trr)	4 ns	4 ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	500 nA @ 80 V
Operating Temperature - Junction (Max)	150°C	150°C
Package / Case	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount
Grade	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101
Technology	Standard	Small Signal =< 200mA (Io), Any Speed
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	Not specified
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The BAW56W,135 manufactured by NXP Semiconductors is a direct electrical and mechanical equivalent to the obsolete BAW56W/ZLF. Both components share identical electrical specifications across all critical parameters: reverse voltage rating, forward voltage drop, reverse recovery time, leakage current, and junction temperature rating.

The BAW56W,135 maintains the same SC-70, SOT-323 package footprint and surface mount configuration, ensuring PCB layout compatibility without redesign. Both parts carry automotive-grade classification and AEC-Q101 qualification, meeting the same reliability and quality standards.

The primary distinction is product status: BAW56W/ZLF is obsolete, while BAW56W,135 is active with significantly higher inventory availability (211,085 pieces versus 915 pieces). Both components comply with REACH regulations and maintain unlimited moisture sensitivity level (MSL 1).

For new designs or production continuation, the BAW56W,135 is the appropriate selection due to active product status and assured long-term supply.

Frequently Asked Questions (FAQ)

Q: Can BAW56W,135 be used as a direct replacement for BAW56W/ZLF in existing designs?

A: Yes. The BAW56W,135 meets all electrical and mechanical specifications of the BAW56W/ZLF. Both components feature identical reverse voltage (90 V), forward voltage (1.25 V @ 150 mA), reverse recovery time (4 ns), and package configuration (SC-70, SOT-323). No circuit modifications or PCB redesign are required.

Q: Are there differences in automotive qualification between these parts?

A: No. Both BAW56W/ZLF and BAW56W,135 carry automotive-grade classification and AEC-Q101 qualification, meeting identical reliability and quality standards for automotive applications.

Q: What is the significance of the product status difference?

A: BAW56W/ZLF is classified as obsolete, indicating discontinued manufacturing and limited remaining inventory (915 pieces). BAW56W,135 is active with robust supply availability (211,085 pieces), ensuring reliable sourcing for current and future production requirements.

Q: Do these components have different moisture sensitivity requirements?

A: No. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there compliance differences between the two parts?

A: Both components are REACH Unaffected. The BAW56W/ZLF is specified as ROHS3 Compliant; RoHS status for BAW56W,135 is not specified in available documentation.

Q: Can these parts be used interchangeably in high-speed switching applications?

A: Yes. Both components feature 4 ns reverse recovery time and are suitable for fast switching applications within the specified current and voltage ratings (150 mA, 90 V).

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