BAS19WT-TP Equivalent & Substitute Parts

Part Overview

The BAS19WT-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100V DC reverse voltage and 200mA average rectified current in a surface mount SOT-323 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or design flexibility across multiple suppliers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1.25 @ 200 mA	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100 nA @ 100 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	pF
Package / Case	SC-70, SOT-323	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BAS19WT-TP are grouped into two categories based on electrical parameter alignment:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 100V reverse voltage, 200mA average rectified current, 1.25V forward voltage at 200mA, 50ns reverse recovery time, 100nA reverse leakage current, and 5pF capacitance. These parts are direct functional replacements with no performance trade-offs.

Similar Parts share the same 100V reverse voltage rating and SOT-323 package but differ in current rating (175mA vs. 200mA) and secondary electrical characteristics including reverse recovery time (4ns vs. 50ns), reverse leakage current (500nA vs. 100nA), and capacitance (1.5pF vs. 5pF). These parts are suitable for applications where the lower current rating and improved switching characteristics do not conflict with circuit requirements.

All substitute parts maintain SOT-323 surface mount packaging, ROHS3 compliance, and MSL-1 moisture sensitivity classification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) [V]	trr [ns]	Ir @ Vr [nA]	C @ Vr [pF]	Package	Tj (Min-Max) [°C]	Grade
BAS19WT-TP	Micro Commercial Co	100	200	1.25 @ 200mA	50	100 @ 100V	5 @ 0V	SOT-323	-55 to 150	Standard
BAS19WTHE3-TP	Micro Commercial Co	100	200	1.25 @ 200mA	50	100 @ 100V	5 @ 0V	SOT-323	-55 to 150	Automotive (AEC-Q101)
BAS19W-7-F	Diodes Incorporated	100	200	1.25 @ 200mA	50	100 @ 100V	5 @ 0V	SOT-323	-65 to 150	Standard
BAS16WT1G	onsemi	100	200	1.25 @ 150mA	6	1000 @ 75V	2 @ 0V	SOT-323	-55 to 150	Standard
BAS16W,115	Nexperia USA Inc.	100	175	1.25 @ 150mA	4	500 @ 80V	1.5 @ 0V	SOT-323	-65 to 150	Automotive (AEC-Q101)
BAS16WF	Nexperia USA Inc.	100	175	1.25 @ 150mA	4	500 @ 80V	1.5 @ 0V	SOT-323	-55 to 150	Automotive (AEC-Q101)

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent):

BAS19WTHE3-TP is a parametric equivalent to BAS19WT-TP with identical electrical specifications. The primary distinction is automotive-grade qualification (AEC-Q101), which provides additional process controls and reliability documentation. Selection of BAS19WTHE3-TP is appropriate for applications requiring automotive compliance or enhanced traceability without electrical performance changes.

BAS19W-7-F from Diodes Incorporated maintains identical electrical parameters to BAS19WT-TP with an extended lower operating temperature limit (-65°C vs. -55°C). This part is suitable for applications requiring expanded temperature range coverage. Packaging differs as Cut Tape & Digi-Reel® versus Tape & Reel, affecting procurement and assembly processes.

Conditional Substitution (Similar Parts):

BAS16WT1G and BAS16W,115 / BAS16WF are suitable substitutes when circuit design permits operation at 175mA or 200mA average rectified current without performance degradation. These parts feature improved switching characteristics (4–6ns reverse recovery time vs. 50ns) and reduced capacitance (1.5–2pF vs. 5pF), beneficial for high-frequency applications. BAS16W,115 and BAS16WF carry automotive qualification (AEC-Q101), while BAS16WT1G does not.

Selection between BAS16 variants depends on temperature range requirements: BAS16W,115 and BAS19W-7-F support -65°C minimum, while BAS16WF and BAS19WT-TP support -55°C minimum.

Frequently Asked Questions (FAQ)

Q: Can BAS19WTHE3-TP replace BAS19WT-TP in all applications?

A: Yes. BAS19WTHE3-TP is a parametric equivalent with identical electrical specifications. The automotive-grade qualification (AEC-Q101) represents enhanced manufacturing controls and documentation, not a functional limitation. Both parts operate identically in standard industrial applications.

Q: What is the difference between BAS19W-7-F and BAS19WT-TP?

A: Electrical specifications are identical. BAS19W-7-F extends the minimum operating temperature to -65°C (vs. -55°C for BAS19WT-TP) and uses Cut Tape & Digi-Reel® packaging instead of Tape & Reel. Manufacturer is Diodes Incorporated rather than Micro Commercial Co.

Q: Can BAS16 series parts (BAS16WT1G, BAS16W,115, BAS16WF) replace BAS19WT-TP?

A: BAS16 series parts are suitable substitutes only when circuit design accommodates 175–200mA current rating and improved switching characteristics (4–6ns reverse recovery time vs. 50ns). The 100V reverse voltage rating is identical. Applications sensitive to junction capacitance (5pF vs. 1.5–2pF) or reverse leakage current (100nA vs. 500nA–1µA) require design verification.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry standard qualification indicating the part meets enhanced reliability, traceability, and manufacturing process controls. Parts with AEC-Q101 (BAS19WTHE3-TP, BAS16W,115, BAS16WF) are suitable for automotive and mission-critical applications. Standard-grade parts (BAS19WT-TP, BAS19W-7-F, BAS16WT1G) are appropriate for general industrial and consumer applications.

Q: Are all substitute parts available in SOT-323 package?

A: Yes. All listed substitute parts use SC-70 or SOT-323 surface mount packaging, ensuring mechanical and footprint compatibility with BAS19WT-TP.

Q: What is the impact of reverse recovery time differences?

A: BAS19WT-TP has 50ns reverse recovery time, while BAS16 series parts have 4–6ns. Faster recovery time reduces switching losses and improves efficiency in high-frequency applications. For low-frequency or DC rectification circuits, this difference has negligible impact.

Q: Can I use BAS16WF if my circuit operates at -65°C?

A: No. BAS16WF maximum operating temperature is -55°C minimum. For -65°C operation, use BAS16W,115 or BAS19W-7-F, both rated to -65°C minimum.

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