BAS20-E3-08 Equivalent & Substitute Parts

Part Overview

The BAS20-E3-08 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 150 V DC reverse voltage with a 200 mA average rectified current rating and is packaged in the SOT-23-3 form factor. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set. Alternative sources and packaging variants are available to support supply chain flexibility and design requirements.

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
Package / Case	TO-236-3, SC-59, SOT-23-3	—
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 BAS20-E3-08 are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 150 V minimum
Current - Average Rectified (Io): 200 mA
Package / Case: SOT-23-3 or compatible surface mount variant
Mounting Type: Surface Mount
Technology: Standard rectifier diode

Substitution Categories:

Parametric Equivalent: Parts with identical electrical specifications and package designation. BAS20-E3-18 meets all electrical parameters and package requirements of the BAS20-E3-08, differing only in manufacturing date code and inventory source within the same Vishay product line.

Direct Manufacturer Equivalent: BAS20-7-F (Diodes Incorporated) provides identical electrical performance with SOT-23F flat lead packaging, a mechanical variant of SOT-23-3. Operating temperature range extends to -65°C.

Manufacturer Recommended Equivalent: BAS20_R1_00001 (Panjit International Inc.) maintains voltage and current ratings with SOT-23-3 packaging. Forward voltage specification differs at 1 V @ 100 mA versus 1.25 V @ 200 mA. Reverse leakage current is specified at 1 µA @ 150 V versus 100 nA @ 150 V.

Higher Voltage Rated Equivalent: BAS21-7-F (Diodes Incorporated) provides 200 V DC reverse voltage rating with identical 200 mA current and SOT-23-3 packaging. This part operates within an extended temperature range of -65°C to 150°C and is suitable for applications requiring higher voltage margin.

Parameter Comparison

Parameter	BAS20-E3-08 (Vishay)	BAS20-E3-18 (Vishay)	BAS20-7-F (Diodes Inc.)	BAS20_R1_00001 (Panjit)	BAS21-7-F (Diodes Inc.)
Voltage - DC Reverse (Vr) (Max)	150 V	150 V	150 V	150 V	200 V
Current - Average Rectified (Io)	200 mA	200 mA	200 mA	200 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.25 V @ 200 mA	1.25 V @ 200 mA	1 V @ 100 mA	1.25 V @ 200 mA
Reverse Recovery Time (trr)	50 ns	50 ns	50 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	100 nA @ 150 V	100 nA @ 150 V	100 nA @ 150 V	1 µA @ 150 V	100 nA @ 200 V
Capacitance @ Vr, F	5 pF @ 0V, 1MHz	5 pF @ 0V, 1MHz	5 pF @ 0V, 1MHz	1.5 pF @ 0V, 1MHz	5 pF @ 0V, 1MHz
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	SOT-23-3 Flat Leads	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-65 to 150°C	-55 to 150°C	-65 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

BAS20-E3-18 (Vishay General Semiconductor - Diodes Division)

This part is a parametric equivalent with identical electrical specifications and package designation. All critical parameters match the BAS20-E3-08. Selection is appropriate for direct replacement in existing designs. ROHS3 compliance and MSL 1 rating are maintained. Higher inventory availability (7657 pcs) supports production requirements.

BAS20-7-F (Diodes Incorporated)

This part provides equivalent electrical performance with SOT-23F flat lead packaging. The mechanical variant (flat leads versus standard leads) is compatible with SOT-23-3 footprints. Extended operating temperature range (-65°C to 150°C) provides additional thermal margin. ROHS3 compliance and MSL 1 rating are maintained. Highest inventory availability (17200 pcs) supports supply chain continuity.

BAS20_R1_00001 (Panjit International Inc.)

This manufacturer-recommended equivalent maintains 150 V reverse voltage and 200 mA current ratings with SOT-23-3 packaging. Forward voltage specification differs at measurement point (1 V @ 100 mA versus 1.25 V @ 200 mA). Reverse leakage current is higher at 1 µA @ 150 V. Capacitance is lower at 1.5 pF. ROHS3 compliance and MSL 1 rating are maintained. Selection is appropriate when Panjit sourcing is required.

BAS21-7-F (Diodes Incorporated)

This part provides higher voltage rating at 200 V DC reverse voltage while maintaining 200 mA current and SOT-23-3 packaging. Extended operating temperature range (-65°C to 150°C) provides additional thermal margin. Selection is appropriate for applications requiring voltage derating or higher voltage margin. ROHS3 compliance and MSL 1 rating are maintained. Highest inventory availability (86100 pcs) supports production requirements.

Frequently Asked Questions (FAQ)

Q: Can BAS20-E3-18 be used as a direct replacement for BAS20-E3-08?

A: Yes. BAS20-E3-18 is a parametric equivalent with identical voltage (150 V), current (200 mA), forward voltage (1.25 V @ 200 mA), reverse recovery time (50 ns), reverse leakage (100 nA @ 150 V), capacitance (5 pF), and SOT-23-3 packaging. Both parts are manufactured by Vishay and carry identical compliance certifications.

Q: What is the difference between BAS20-7-F and BAS20-E3-08?

A: BAS20-7-F is manufactured by Diodes Incorporated and features SOT-23F flat lead packaging instead of standard SOT-23-3 leads. Electrical specifications are identical. Operating temperature range extends to -65°C (versus -55°C). Both parts are ROHS3 compliant with MSL 1 rating.

Q: Is BAS21-7-F a suitable substitute for BAS20-E3-08?

A: BAS21-7-F is suitable for applications where higher voltage rating is beneficial. The part provides 200 V DC reverse voltage (versus 150 V) while maintaining 200 mA current and SOT-23-3 packaging. All other electrical parameters remain equivalent. Extended operating temperature range (-65°C to 150°C) is provided. ROHS3 compliance and MSL 1 rating are maintained.

Q: What are the key differences in BAS20_R1_00001 compared to BAS20-E3-08?

A: BAS20_R1_00001 maintains 150 V reverse voltage and 200 mA current ratings with SOT-23-3 packaging. Forward voltage is specified at 1 V @ 100 mA (versus 1.25 V @ 200 mA). Reverse leakage current is 1 µA @ 150 V (versus 100 nA @ 150 V). Capacitance is 1.5 pF (versus 5 pF). These differences reflect Panjit manufacturing specifications and do not affect general-purpose rectifier applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. All parts maintain MSL 1 (Unlimited) moisture sensitivity level rating.

Q: Which substitute part has the highest inventory availability?

A: BAS21-7-F (Diodes Incorporated) has the highest inventory availability at 86100 pcs. BAS20-7-F (Diodes Incorporated) has 17200 pcs available. BAS20-E3-18 (Vishay) has 7657 pcs available. BAS20_R1_00001 (Panjit) has 3994 pcs available.

Q: Can BAS20-7-F be used in applications requiring -55°C minimum operating temperature?

A: Yes. BAS20-7-F operates from -65°C to 150°C, which exceeds the -55°C to 150°C range of BAS20-E3-08. The extended lower temperature limit provides additional margin for low-temperature applications.

Q: What packaging considerations apply when substituting BAS20-7-F?

A: BAS20-7-F features SOT-23F flat lead packaging, which is mechanically compatible with SOT-23-3 footprints. The flat lead variant does not require PCB layout modifications. Both packaging styles are surface mount with identical pin spacing and footprint dimensions.

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