BAS16TT1 Equivalent & Substitute Parts

Part Overview

The BAS16TT1 is a small-signal switching diode manufactured by onsemi, rated for 75V DC reverse voltage and 200mA average rectified current in an SC-75 surface mount package. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical performance within the application's voltage and current specifications while meeting current manufacturing and compliance standards.

Substiute Parts

BAS16TT1

onsemiIn Stock: 6469BAS16TT1 Datasheet

Current PartRFQ

BAS16TT1G

onsemiIn Stock: 29406BAS16TT1G Datasheet

DirectRFQ

BAS16L,315

Nexperia USA Inc.In Stock: 3994BAS16L,315 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS16TT1 is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 75V
• Current - Average Rectified (Io) rating must equal or exceed 200mA
• Mounting type must be Surface Mount
• Package compatibility or functional equivalence in SC-75 or equivalent small-signal diode packages

Secondary Compliance Criteria:

• Product status: Active parts are preferred over obsolete classifications
• RoHS compliance: ROHS3 compliant parts are preferred for new designs
• MSL rating: Must be 1 (Unlimited) or equivalent

The identified substitutes meet or exceed the electrical specifications of the BAS16TT1 while offering active product status and improved compliance posture.

Parameter Comparison

Engineering Selection Recommendations

BAS16TT1G (onsemi): This part is the direct manufacturer equivalent with active product status. It maintains the same SC-75 package footprint as the BAS16TT1, providing pin-for-pin compatibility. The BAS16TT1G exceeds the original specifications with 100V reverse voltage rating and includes ROHS3 compliance. This part is the primary recommendation for direct replacement in existing designs.

BAS16L,315 (Nexperia USA Inc.): This part provides functional equivalence with enhanced electrical performance. The 100V reverse voltage rating and 215mA current rating exceed the BAS16TT1 specifications. The BAS16L,315 features faster reverse recovery time (4ns versus 6ns in BAS16TT1G) and lower reverse leakage current. However, the package differs (SOD-882/DFN1006-2 versus SC-75), requiring PCB layout modification. This part is suitable for new designs where package footprint flexibility exists and automotive-grade qualification (AEC-Q101) is beneficial.

Both substitute parts offer ROHS3 compliance and unlimited moisture sensitivity rating, addressing the non-compliance status of the obsolete BAS16TT1.

Frequently Asked Questions (FAQ)

Q: Can BAS16TT1G be used as a direct replacement for BAS16TT1?

A: Yes. The BAS16TT1G maintains the same SC-75 package and pin configuration as the BAS16TT1. The electrical specifications of BAS16TT1G (100V, 200mA) exceed the original part requirements (75V, 200mA), ensuring functional compatibility without circuit modification.

Q: What is the primary difference between BAS16TT1G and BAS16L,315?

A: The primary difference is package type. BAS16TT1G uses SC-75 (SOT-416) packaging, matching the original BAS16TT1 footprint. BAS16L,315 uses SOD-882 (DFN1006-2) packaging, which is physically smaller and requires PCB redesign. Electrically, BAS16L,315 offers superior performance with faster recovery time (4ns) and lower leakage current.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both BAS16TT1G and BAS16L,315 are ROHS3 compliant, addressing the non-compliance status of the obsolete BAS16TT1. This compliance is mandatory for new designs in regulated markets.

Q: What is the voltage derating consideration when substituting BAS16TT1?

A: The BAS16TT1 is rated for 75V maximum reverse voltage. Both substitute parts are rated for 100V, providing a 25V safety margin above the original specification. This increased rating does not require circuit modification and enhances reliability in voltage transient conditions.

Q: Can BAS16L,315 be used in applications requiring SC-75 package compatibility?

A: No. BAS16L,315 uses SOD-882 packaging, which is not pin-compatible with SC-75. PCB layout modification is required. For applications requiring SC-75 package compatibility, BAS16TT1G is the appropriate selection.

Q: What is the temperature operating range for each substitute?

A: BAS16TT1G operates from -55°C to 150°C junction temperature. BAS16L,315 specifies a maximum junction temperature of 150°C. Both parts support standard industrial and commercial temperature ranges.

Q: Are there any compliance or certification differences between the substitutes?

A: BAS16L,315 includes AEC-Q101 automotive qualification, making it suitable for automotive applications. BAS16TT1G does not specify automotive qualification. For non-automotive applications, both parts meet standard industrial compliance requirements (ROHS3, REACH Unaffected, EAR99).