BA158-AP Equivalent & Substitute Parts

Part Overview

The BA158-AP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. Manufactured by Micro Commercial Co, this component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating packaging and compliance requirements.

Substiute Parts

BA158-AP

Micro Commercial CoIn Stock: 1256BA158-AP Datasheet

Current PartRFQ

BA158GP-AP

Micro Commercial CoIn Stock: 982BA158GP-AP Datasheet

DirectRFQ

BA158G R1G

Taiwan Semiconductor CorporationIn Stock: 1160BA158G R1G Datasheet

UpgradeRFQ

STTH1L06

STMicroelectronicsIn Stock: 17438STTH1L06 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BA158-AP is determined by equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 1 A
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial

Performance Parameters:

• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A or lower
• Reverse Recovery Time (trr): 150 ns or lower
• Current - Reverse Leakage @ Vr: 5 µA @ 600 V or lower

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are classified into three categories: Direct Manufacturer (same manufacturer, active status), Upgrade (enhanced performance characteristics), and Similar (alternative manufacturer, equivalent specifications).

Parameter Comparison

Engineering Selection Recommendations

BA158GP-AP (Direct Manufacturer Substitute)

BA158GP-AP is the direct equivalent from Micro Commercial Co with active product status. Electrical specifications are identical to BA158-AP across all critical parameters: 600 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and 150 ns reverse recovery time. Operating temperature range extends to 150°C compared to 125°C for BA158-AP. This part is supplied in Tape & Box packaging and maintains ROHS3 compliance. Selection of BA158GP-AP is appropriate for direct replacement in existing designs.

BA158G R1G (Upgrade Substitute)

BA158G R1G, manufactured by Taiwan Semiconductor Corporation, provides enhanced performance characteristics while maintaining electrical equivalence. Forward voltage is reduced to 1.2 V @ 1 A, resulting in lower power dissipation. Operating temperature maximum reaches 150°C. Reverse recovery time remains at 150 ns. This part is suitable for applications requiring improved thermal performance or reduced forward voltage drop.

STTH1L06 (Similar Manufacturer Substitute)

STTH1L06 from STMicroelectronics meets all critical electrical specifications: 600 V reverse voltage and 1 A average rectified current. Performance enhancements include reduced reverse recovery time of 80 ns (compared to 150 ns) and lower reverse leakage current of 1 µA @ 600 V (compared to 5 µA). Maximum operating temperature reaches 175°C. This part is supplied in Cut Tape packaging and maintains ROHS3 compliance. STTH1L06 is suitable for applications where faster switching characteristics and lower leakage current provide system benefits.

Frequently Asked Questions (FAQ)

Q: Can BA158GP-AP be used as a direct replacement for BA158-AP?

A: Yes. BA158GP-AP is electrically equivalent to BA158-AP across all critical parameters: 600 V reverse voltage, 1 A average rectified current, 1.3 V forward voltage at 1 A, and 150 ns reverse recovery time. BA158GP-AP has active product status, making it the recommended direct substitute for obsolete BA158-AP.

Q: What is the difference between BA158G R1G and BA158-AP?

A: BA158G R1G maintains electrical equivalence in voltage and current ratings but offers reduced forward voltage (1.2 V vs. 1.3 V @ 1 A) and extended operating temperature range (150°C vs. 125°C). Reverse recovery time and reverse leakage current specifications are identical. BA158G R1G is manufactured by Taiwan Semiconductor Corporation.

Q: How does STTH1L06 differ from BA158-AP?

A: STTH1L06 matches BA158-AP in voltage and current specifications but provides improved switching performance with 80 ns reverse recovery time (vs. 150 ns) and lower reverse leakage current of 1 µA @ 600 V (vs. 5 µA). Maximum operating temperature is 175°C. STTH1L06 is manufactured by STMicroelectronics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. BA158GP-AP, BA158G R1G, and STTH1L06 are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of BA158-AP.

Q: What packaging options are available for these substitutes?

A: BA158GP-AP is supplied in Tape & Box (TB) packaging. BA158G R1G packaging is not specified in the provided data. STTH1L06 is supplied in Cut Tape (CT) packaging. All parts use DO-204AL, DO-41, Axial package configurations suitable for through-hole mounting.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts maintain identical through-hole mounting type and DO-41 package dimensions, allowing direct PCB compatibility without layout modifications. Electrical specifications remain within acceptable tolerance ranges for standard rectifier applications.

Q: Which substitute offers the best thermal performance?

A: STTH1L06 provides the highest maximum operating temperature at 175°C, followed by BA158GP-AP and BA158G R1G at 150°C. Selection depends on specific thermal requirements of the application.