BAV21WS RRG Equivalent & Substitute Parts

Part Overview

The BAV21WS RRG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, classified as a small-signal diode suitable for applications requiring 250 V reverse voltage rating and 200 mA average rectified current. The device is packaged in SOD-323F surface-mount configuration and maintains Active product status. Substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain continuity while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	250	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 @ 200 V	nA
Capacitance @ Vr, F	5 @ 0V, 1MHz	pF
Package / Case	SC-90, SOD-323F	—
Operating Temperature - Junction	-65 to 150	°C
Mounting Type	Surface Mount	—
Technology	Standard	—

Substitute Part Grouping Explanation

Substitute parts for the BAV21WS RRG are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters:

Voltage Rating: DC reverse voltage (Vr) must equal 250 V maximum
Current Rating: Average rectified current (Io) must equal 200 mA
Forward Voltage: Forward voltage drop (Vf) must not exceed 1.25 V at 200 mA
Reverse Recovery Time: Switching speed (trr) must equal 50 ns
Reverse Leakage: Leakage current must not exceed 100 nA at 200 V
Capacitance: Junction capacitance must equal 5 pF at 0 V, 1 MHz
Package: Physical form factor must be SOD-323F (SC-90)
Mounting: Surface-mount technology required
Compliance: RoHS3 compliance and REACH unaffected status required

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Parameter	BAV21WS RRG	BAV21WS R9G	Match
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	✓
Category	Diodes, Rectifiers	Diodes, Rectifiers	✓
Voltage - DC Reverse (Vr) (Max)	250 V	250 V	✓
Current - Average Rectified (Io)	200 mA	200 mA	✓
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.25 V @ 200 mA	✓
Reverse Recovery Time (trr)	50 ns	50 ns	✓
Current - Reverse Leakage @ Vr	100 nA @ 200 V	100 nA @ 200 V	✓
Capacitance @ Vr, F	5 pF @ 0V, 1MHz	5 pF @ 0V, 1MHz	✓
Package / Case	SC-90, SOD-323F	SC-90, SOD-323F	✓
Mounting Type	Surface Mount	Surface Mount	✓
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	✓
Technology	Standard	Standard	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Active	Active	✓

Engineering Selection Recommendations

The BAV21WS R9G is a direct parametric equivalent to the BAV21WS RRG. Both parts are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical characteristics, mechanical specifications, and compliance certifications. Selection between these parts is based on availability and supply chain requirements rather than technical differentiation.

Both parts carry Active product status, confirming ongoing manufacturing support and availability. RoHS3 compliance and REACH unaffected status are maintained across both variants, ensuring regulatory compliance for applications subject to environmental restrictions.

The SOD-323F package format is consistent across both parts, permitting direct substitution on printed circuit boards without layout modification. Surface-mount assembly processes remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can BAV21WS R9G replace BAV21WS RRG in existing designs?

A: Yes. Both parts are parametric equivalents with identical voltage ratings (250 V), current ratings (200 mA), forward voltage characteristics (1.25 V @ 200 mA), reverse recovery time (50 ns), and package format (SOD-323F). No circuit redesign or board layout modification is required.

Q: Are there differences in package dimensions between these parts?

A: No. Both parts use the SC-90 SOD-323F package format, which defines identical physical dimensions, lead spacing, and mounting footprint. PCB assembly tooling and reflow profiles remain unchanged.

Q: What is the difference between the part number suffixes RRG and R9G?

A: The suffixes indicate different manufacturing tape reels or production batches from Taiwan Semiconductor Corporation. The electrical and mechanical specifications are identical. The suffix does not affect functional performance or compatibility.

Q: Are both parts RoHS3 compliant?

A: Yes. Both BAV21WS RRG and BAV21WS R9G carry RoHS3 compliance certification and REACH unaffected status, meeting environmental and regulatory requirements for restricted substance use.

Q: What is the operating temperature range for these diodes?

A: The junction operating temperature range is -65°C to 150°C for both parts, defining the thermal limits for reliable operation in industrial and commercial applications.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Yes. Both parts feature identical reverse recovery time (50 ns) and capacitance characteristics (5 pF @ 0V, 1MHz), supporting equivalent performance in small-signal switching and rectification circuits.

Q: What is the moisture sensitivity level for these components?

A: Both parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements during storage and handling.

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