BAS16WF Equivalent & Substitute Parts

Part Overview

The BAS16WF is a general-purpose rectifier diode manufactured by Nexperia USA Inc., rated for 100 V DC reverse voltage and 175 mA average rectified current in a surface mount SOT-323 package. This component is classified as a small signal diode with standard switching speed characteristics and is qualified to AEC-Q101 automotive standards. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified to provide design flexibility for procurement, inventory management, and supply chain continuity. Substitutes must maintain electrical compatibility within the specified parameter ranges while accommodating the same surface mount package footprint.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	175	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 150 mA	V
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	nA
Capacitance @ Vr, F	1.5 @ 0V, 1MHz	pF
Package / Case	SC-70, SOT-323	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the BAS16WF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 100 V
Package / Case: Must be SC-70 or SOT-323 (surface mount, identical footprint)
Mounting Type: Must be Surface Mount
RoHS Status: Must be ROHS3 Compliant
Moisture Sensitivity Level: Must be 1 (Unlimited) or equivalent

Functional Performance Criteria:

Current - Average Rectified (Io): Must support minimum 175 mA operation
Voltage - Forward (Vf) (Max): Must not exceed 1.25 V at rated current
Speed Classification: Must be Small Signal (≤ 200 mA) or equivalent
Technology: Must be Standard technology classification

Preferred Alignment Criteria:

Product Status: Active production preferred
Reverse Recovery Time (trr): Lower values indicate faster switching performance
Current - Reverse Leakage: Lower values indicate superior reverse blocking characteristics

Substitute parts BAS19W-7-F and SBAS16WT1G meet the mandatory compatibility criteria and functional performance requirements for direct substitution in the BAS16WF application.

Parameter Comparison

Parameter	BAS16WF (Main)	BAS19W-7-F	SBAS16WT1G	Unit
Manufacturer	Nexperia USA Inc.	Diodes Incorporated	onsemi	—
Voltage - DC Reverse (Vr) (Max)	100	100	75	V
Current - Average Rectified (Io)	175	200	200	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 150 mA	1.25 @ 200 mA	1.25 @ 150 mA	V
Reverse Recovery Time (trr)	4	50	6	ns
Current - Reverse Leakage @ Vr	500 nA @ 80 V	100 nA @ 100 V	1 µA @ 75 V	nA / µA
Capacitance @ Vr, F	1.5 @ 0V, 1MHz	5 @ 0V, 1MHz	2 @ 0V, 1MHz	pF
Package / Case	SC-70, SOT-323	SC-70, SOT-323	SC-70, SOT-323	—
Operating Temperature - Junction (Max)	150	150	150	°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
Product Status	Active	Active	Active	—

Engineering Selection Recommendations

BAS19W-7-F (Diodes Incorporated)

This substitute maintains full electrical compatibility with the BAS16WF across all mandatory parameters. The BAS19W-7-F provides equal reverse voltage rating (100 V) and exceeds the current requirement (200 mA vs. 175 mA). Forward voltage characteristics are identical at 1.25 V maximum. The part is ROHS3 compliant, carries MSL-1 rating, and maintains active production status. The primary trade-off is increased reverse recovery time (50 ns vs. 4 ns), which is acceptable for general-purpose rectification applications where switching speed is not performance-critical. This substitute is suitable for direct replacement in standard rectification circuits.

SBAS16WT1G (onsemi)

This substitute provides compatibility with the BAS16WF in package footprint, mounting type, and compliance certifications. The SBAS16WT1G exceeds current capacity (200 mA vs. 175 mA) and maintains forward voltage specification (1.25 V @ 150 mA). Reverse recovery time is superior (6 ns vs. 4 ns), providing faster switching performance. However, the reverse voltage rating is reduced to 75 V, which represents a design constraint. This substitute is applicable only in circuits where the maximum reverse voltage does not exceed 75 V. The part is ROHS3 compliant, MSL-1 rated, and in active production. Selection of this substitute requires verification that the 75 V reverse voltage rating is sufficient for the intended application.

Selection Criteria Summary:

For applications requiring 100 V reverse voltage rating: BAS19W-7-F is the preferred substitute
For applications with maximum reverse voltage ≤ 75 V: SBAS16WT1G provides enhanced switching performance
All substitutes maintain identical package footprint (SOT-323) and surface mount compatibility
All substitutes meet automotive-grade compliance and environmental requirements

Frequently Asked Questions (FAQ)

Q: Can BAS19W-7-F be used as a direct replacement for BAS16WF?

A: Yes. BAS19W-7-F maintains the same 100 V reverse voltage rating, exceeds the current requirement (200 mA vs. 175 mA), and shares identical forward voltage characteristics. Both parts use the SOT-323 package with identical footprint. The primary difference is reverse recovery time (50 ns vs. 4 ns), which does not affect general-purpose rectification performance.

Q: What is the voltage limitation of SBAS16WT1G compared to BAS16WF?

A: SBAS16WT1G has a maximum reverse voltage rating of 75 V, compared to 100 V for BAS16WF. This substitute is suitable only for applications where the reverse voltage does not exceed 75 V. Exceeding this rating will result in device failure.

Q: Are all three parts (BAS16WF, BAS19W-7-F, SBAS16WT1G) pin-compatible?

A: Yes. All three parts use the SC-70 / SOT-323 package with identical pin configuration and footprint. No PCB layout modifications are required for substitution.

Q: Do the substitute parts meet the same compliance standards as BAS16WF?

A: Yes. Both BAS19W-7-F and SBAS16WT1G are ROHS3 compliant, carry MSL-1 (Unlimited) moisture sensitivity rating, and are in active production status. Both are suitable for applications requiring standard environmental compliance.

Q: How does reverse recovery time affect circuit performance?

A: Reverse recovery time (trr) determines how quickly the diode transitions from forward conduction to reverse blocking. BAS16WF has 4 ns trr, BAS19W-7-F has 50 ns trr, and SBAS16WT1G has 6 ns trr. For general-purpose rectification at low to moderate frequencies, these differences are not performance-limiting. For high-frequency switching applications, faster recovery time (lower trr) is preferred.

Q: What is the difference in reverse leakage current between these parts?

A: BAS16WF exhibits 500 nA leakage at 80 V, BAS19W-7-F exhibits 100 nA at 100 V, and SBAS16WT1G exhibits 1 µA at 75 V. Lower leakage current indicates superior reverse blocking performance. For most applications, these differences are negligible. High-impedance circuits may benefit from lower leakage characteristics.

Q: Can these parts be used interchangeably in automotive applications?

A: BAS16WF carries AEC-Q101 automotive qualification. BAS19W-7-F and SBAS16WT1G do not list AEC-Q101 qualification in the provided specifications. For automotive applications requiring AEC-Q101 certification, BAS16WF is the specified part. Substitutes may be used in non-automotive or non-qualified applications.

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