BAV20WS-7 Equivalent & Substitute Parts

Part Overview

The BAV20WS-7 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 150 V DC reverse voltage and 200 mA average rectified current in a surface-mount SOD-323 package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Equivalent parts maintain identical electrical specifications, while substitute parts offer enhanced or alternative ratings suitable for the same application circuit topology.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	150	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 @ 150 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	pF
Mounting Type	Surface Mount	—
Package / Case	SC-76, SOD-323	—
Operating Temperature - Junction	-65 to 150	°C
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution of the BAV20WS-7 is determined by the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) rating must equal or exceed 150 V
Current - Average Rectified (Io) rating must equal or exceed 200 mA
Voltage - Forward (Vf) must not exceed 1.25 V at the specified forward current
Reverse Recovery Time (trr) must not exceed 50 ns
Reverse Leakage Current must not exceed 100 nA at rated reverse voltage

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount (required)
Package / Case: SOD-323 or equivalent footprint (SC-76)
Moisture Sensitivity Level: 1 (Unlimited)

Compliance Criteria:

RoHS3 Compliance status
REACH Unaffected status
Automotive qualification (AEC-Q101) where applicable

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical specifications, different manufacturers or packaging) and Manufacturer Recommended Substitutes (enhanced ratings or alternative technologies meeting or exceeding BAV20WS-7 specifications).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) [V]	trr [ns]	Ir @ Vr [nA]	Package	Product Status	RoHS Status
BAV20WS-7	Diodes Incorporated	150	200	1.25	50	100 @ 150V	SOD-323	Discontinued	Non-compliant
BAV20WS-7-F	Diodes Incorporated	150	200	1.25	50	100 @ 150V	SOD-323	Active	ROHS3 Compliant
BAS20HT1G	onsemi	200	200	1.25	50	1 µA @ 200V	SOD-323	Active	ROHS3 Compliant
BAS2103WE6327HTSA1	Infineon Technologies	200	250	1.25	50	100 nA @ 200V	SOD-323	Last Time Buy	ROHS3 Compliant
BAS21AHT1G	onsemi	200	200	1.25	50	40 nA @ 200V	SOD-323	Active	ROHS3 Compliant
BAS21HT1G	onsemi	250	200	1.25	50	100 nA @ 200V	SOD-323	Active	ROHS3 Compliant
BAV20W-TP	Micro Commercial Co	150	200	1.25	50	100 nA @ 150V	SOD-123	Active	ROHS3 Compliant
BAV20WS-G3-08	Vishay General Semiconductor	150	250	1.25	50	100 nA @ 150V	SOD-323	Active	ROHS3 Compliant
SBAS20HT1G	onsemi	200	200	1.25	50	1 µA @ 200V	SOD-323	Active	ROHS3 Compliant
BAV20WS-G RRG	Taiwan Semiconductor Corporation	150	200	1.25	50	100 nA @ 150V	SOD-323	Active	ROHS3 Compliant
BAV20WS-TP	Micro Commercial Co	150	200	1.25	50	100 nA @ 150V	SOD-323	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalent (Recommended Primary Substitute):

BAV20WS-7-F is the direct parametric equivalent manufactured by Diodes Incorporated. This part maintains identical electrical specifications (150 V, 200 mA, 1.25 V forward voltage, 50 ns recovery time) and identical SOD-323 package footprint. BAV20WS-7-F is Active product status with ROHS3 compliance, addressing the RoHS non-compliance limitation of the discontinued BAV20WS-7. This substitution requires no circuit redesign and provides pin-for-pin compatibility.

Alternative Parametric Equivalents (Same Electrical Ratings, Different Manufacturers):

BAV20WS-G RRG (Taiwan Semiconductor Corporation) and BAV20WS-TP (Micro Commercial Co) provide identical electrical specifications and SOD-323 packaging. Both are Active status with ROHS3 compliance. These alternatives offer supply chain diversification while maintaining full electrical compatibility.

Enhanced Voltage Rating Substitutes (200 V and 250 V Ratings):

BAS20HT1G, SBAS20HT1G, BAS21AHT1G, and BAS21HT1G provide 200 V or 250 V reverse voltage ratings with maintained 200 mA current ratings and identical forward voltage characteristics. These parts are suitable for applications requiring higher voltage margin. SBAS20HT1G includes AEC-Q101 automotive qualification. BAS21HT1G offers the highest voltage rating (250 V) with the lowest reverse leakage current (100 nA @ 200 V).

Enhanced Current Rating Substitute:

BAV20WS-G3-08 (Vishay General Semiconductor) and BAS2103WE6327HTSA1 (Infineon Technologies) provide 250 mA current ratings while maintaining 150 V or 200 V voltage ratings. These parts accommodate applications requiring higher current capacity within the same package footprint.

Package Variant:

BAV20W-TP (Micro Commercial Co) provides identical electrical specifications in SOD-123 package. This variant is suitable only if PCB layout accommodates the smaller SOD-123 footprint.

Product Status Consideration:

BAS2103WE6327HTSA1 carries Last Time Buy status, indicating limited future availability. For long-term production requirements, Active status parts (BAV20WS-7-F, BAS20HT1G, BAS21HT1G, BAV20WS-G3-08, SBAS20HT1G, BAV20WS-G RRG, BAV20WS-TP) are preferred.

Frequently Asked Questions (FAQ)

Q: Can BAV20WS-7-F be used as a direct replacement for BAV20WS-7?

A: Yes. BAV20WS-7-F is a direct parametric equivalent with identical electrical specifications (150 V, 200 mA, 1.25 V forward voltage) and SOD-323 package. The primary difference is product status (Active vs. Discontinued) and RoHS3 compliance. No circuit modifications are required.

Q: What is the difference between parametric equivalents and manufacturer-recommended substitutes?

A: Parametric equivalents maintain identical electrical ratings and package footprints. Manufacturer-recommended substitutes offer enhanced specifications (higher voltage or current ratings) that exceed the original part requirements while maintaining compatibility with the application circuit. Enhanced ratings provide additional design margin.

Q: Can I use BAS21HT1G (250 V) instead of BAV20WS-7 (150 V)?

A: Yes. BAS21HT1G provides 250 V reverse voltage rating, which exceeds the 150 V requirement of BAV20WS-7. The 200 mA current rating, 1.25 V forward voltage, and SOD-323 package are identical. Higher voltage rating provides additional safety margin in the circuit. No circuit modifications are required.

Q: What is the significance of the SOD-323 package specification?

A: SOD-323 is the surface-mount package footprint. All recommended substitutes except BAV20W-TP use SOD-323 packaging, ensuring PCB layout compatibility without redesign. BAV20W-TP uses SOD-123, a smaller package requiring PCB layout modification.

Q: Why does SBAS20HT1G include AEC-Q101 qualification?

A: AEC-Q101 is an automotive qualification standard. SBAS20HT1G is qualified for automotive applications, making it suitable for designs requiring automotive-grade components. Non-automotive qualified parts are suitable for general industrial and consumer applications.

Q: Can I substitute BAV20WS-7 with a part rated for higher current (250 mA)?

A: Yes. BAV20WS-G3-08 and BAS2103WE6327HTSA1 provide 250 mA ratings while maintaining 150 V or 200 V voltage ratings. Higher current rating provides additional margin for the application circuit. No circuit modifications are required if the original design operates below 250 mA.

Q: What does "Last Time Buy" status mean for BAS2103WE6327HTSA1?

A: Last Time Buy indicates the manufacturer has announced end-of-life for this part. Limited inventory remains available, but future production is not planned. For new designs or long-term production requirements, Active status parts are recommended.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended substitute parts listed are ROHS3 compliant. The original BAV20WS-7 is RoHS non-compliant. RoHS3 compliance is required for most commercial and industrial applications in regulated markets.

Q: What is the difference between reverse leakage current specifications across substitute parts?

A: Reverse leakage current varies among manufacturers. BAV20WS-7-F, BAV20WS-G3-08, BAV20WS-G RRG, and BAV20WS-TP specify 100 nA @ 150 V. BAS20HT1G and SBAS20HT1G specify 1 µA @ 200 V. BAS21AHT1G specifies 40 nA @ 200 V. Lower leakage current indicates better reverse blocking performance. All values are within acceptable ranges for general-purpose rectifier applications.

Q: Can I use BAV20W-TP (SOD-123) if my PCB is designed for SOD-323?

A: No. SOD-123 and SOD-323 have different physical footprints and pin spacing. BAV20W-TP requires PCB layout modification. Use SOD-323 packaged alternatives (BAV20WS-7-F, BAS20HT1G, BAS21HT1G, BAV20WS-G3-08, SBAS20HT1G, BAV20WS-G RRG, BAV20WS-TP) for direct PCB compatibility.

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