BAV23S,235 Equivalent & Substitute Parts

Part Overview

The BAV23S,235 is a diode array rectifier manufactured by Nexperia USA Inc., configured as 1 pair series connection with a maximum DC reverse voltage of 200 V and average rectified current of 225 mA per diode. This component is housed in a Surface Mount TO-236-3 (SC-59, SOT-23-3) package and is classified as Active product status with ROHS3 compliance. The part features fast recovery characteristics with a reverse recovery time of 50 ns, making it suitable for general-purpose rectification applications requiring compact form factors.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative manufacturers offer improved lead times or inventory levels, or when design requirements permit operation within a broader parameter range while maintaining functional compatibility.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Series Connection	—
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io) (per Diode)	225	mA (DC)
Voltage - Forward (Vf) (Max) @ If	1.25 @ 200 mA	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	100 nA @ 200 V	nA
Operating Temperature - Junction (Max)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BAV23S,235 is determined by strict equivalence or compatibility within the following critical parameters:

Direct Substitution Criteria:

Diode Configuration: 1 Pair Series Connection (mandatory)
Package / Case: TO-236-3, SC-59, SOT-23-3 (mandatory for mechanical compatibility)
Voltage - DC Reverse (Vr) (Max): 200 V minimum (equal or higher acceptable)
Current - Average Rectified (Io) (per Diode): 225 mA minimum (equal or higher acceptable)
Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 200 mA (equal or lower acceptable)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (equal or faster acceptable)
Reverse Recovery Time (trr): 50 ns (equal or faster acceptable)
RoHS Status: ROHS3 Compliant (mandatory)
Mounting Type: Surface Mount (mandatory)

Parts are grouped as follows:

Direct Manufacturer Equivalent: BAV23S-TP (Micro Commercial Co) — identical electrical specifications with expanded operating temperature range.

Parametric Equivalent: BAV23SHE3-TP (Micro Commercial Co) — identical electrical specifications with automotive-grade qualification (AEC-Q101).

Similar Parts with Parameter Variations: BAS21SLT1G, BAS21S-TP, BAV23S (Good-Ark Semiconductor), and BAV23S-7-F — these parts meet or exceed the critical parameters but may differ in voltage rating, current capacity, or speed classification.

Parameter Comparison

Parameter	BAV23S,235 (Nexperia)	BAV23S-TP (Micro Commercial)	BAV23SHE3-TP (Micro Commercial)	BAS21SLT1G (onsemi)	BAV23S (Good-Ark)	BAV23S-7-F (Diodes Inc.)	BAS21S-TP (Micro Commercial)
Diode Configuration	1 Pair Series	1 Pair Series	1 Pair Series	1 Pair Series	1 Pair Series	1 Pair Series	1 Pair Series
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	250 V	250 V	200 V	250 V
Current - Average Rectified (Io) (per Diode)	225 mA	225 mA	225 mA	225 mA	225 mA	400 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 200 mA	1.25 V @ 200 mA	1.25 V @ 200 mA	1.25 V @ 200 mA	1.25 V @ 200 mA	1.25 V @ 200 mA	1.1 V @ 100 mA
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Small Signal ≤ 200mA, Any Speed
Reverse Recovery Time (trr)	50 ns	50 ns	50 ns	50 ns	50 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	100 nA @ 200 V	100 nA @ 250 V	100 nA @ 250 V	100 nA @ 200 V	100 nA @ 250 V	100 nA @ 200 V	1 µA @ 200 V
Operating Temperature - Junction	Max 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Grade / Qualification	Standard	Standard	Automotive / AEC-Q101	Standard	Standard	Standard	Standard

Engineering Selection Recommendations

Tier 1 — Direct Substitutes (Recommended for Drop-In Replacement):

BAV23S-TP (Micro Commercial Co) and BAV23SHE3-TP (Micro Commercial Co) are direct electrical equivalents to the BAV23S,235. Both maintain identical voltage, current, and speed specifications. BAV23S-TP is suitable for general industrial applications. BAV23SHE3-TP carries automotive-grade qualification (AEC-Q101) and is appropriate for automotive or mission-critical applications requiring enhanced reliability documentation.

Tier 2 — Parametric Equivalents (Compatible with Design Margin):

BAS21SLT1G (onsemi) and BAV23S (Good-Ark Semiconductor) exceed the voltage rating (250 V vs. 200 V) while maintaining identical current and speed specifications. These parts are suitable when design margins permit higher voltage tolerance. Both are Active status with ROHS3 compliance.

BAV23S-7-F (Diodes Incorporated) maintains the 200 V voltage rating but offers increased current capacity (400 mA vs. 225 mA). This part is appropriate for applications requiring higher current handling within the same voltage envelope. Active status with ROHS3 compliance.

Tier 3 — Limited Compatibility:

BAS21S-TP (Micro Commercial Co) offers higher voltage (250 V) but reduced current capacity (200 mA vs. 225 mA) and different speed classification (Small Signal vs. Fast Recovery). This part is suitable only when the application current requirement is 200 mA or lower and fast recovery is not critical.

All substitute parts maintain Surface Mount TO-236-3 (SOT-23-3) package compatibility, ROHS3 compliance, and MSL 1 rating. Selection should be based on inventory availability, lead time requirements, and specific application voltage and current margins.

Frequently Asked Questions (FAQ)

Q: Can BAV23S-TP be used as a direct replacement for BAV23S,235?

A: Yes. BAV23S-TP is a direct electrical equivalent with identical voltage (200 V), current (225 mA), forward voltage (1.25 V @ 200 mA), and speed (Fast Recovery, 50 ns trr) specifications. Both use the same TO-236-3 (SOT-23-3) package and are ROHS3 compliant. The primary difference is the expanded operating temperature range (-65°C to 150°C vs. maximum 150°C) and manufacturer (Micro Commercial Co vs. Nexperia USA Inc.).

Q: What is the difference between BAV23S-TP and BAV23SHE3-TP?

A: Both parts are electrically identical with 200 V reverse voltage and 225 mA current rating. BAV23SHE3-TP carries automotive-grade qualification (AEC-Q101) and is intended for automotive or high-reliability applications. BAV23S-TP is standard grade. Selection depends on application requirements and qualification documentation needs.

Q: Can BAS21SLT1G replace BAV23S,235?

A: BAS21SLT1G is compatible with higher design margins. It maintains the same current (225 mA) and speed (Fast Recovery, 50 ns trr) but offers increased voltage rating (250 V vs. 200 V). This part is suitable when the application can tolerate higher voltage capability. Package and compliance are identical.

Q: Why does BAV23S-7-F have a different current rating?

A: BAV23S-7-F is rated for 400 mA average rectified current compared to 225 mA for the BAV23S,235. This higher current capacity makes it suitable for applications requiring greater current handling within the same 200 V voltage envelope. All other electrical characteristics (voltage, speed, recovery time) remain equivalent.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitute parts use the TO-236-3 (SC-59, SOT-23-3) Surface Mount package. This ensures mechanical and footprint compatibility on printed circuit boards. No PCB layout modifications are required when substituting between these parts.

Q: What does AEC-Q101 qualification mean for BAV23SHE3-TP?

A: AEC-Q101 is an automotive electronics qualification standard. BAV23SHE3-TP meets this qualification, indicating it has undergone enhanced reliability testing and documentation suitable for automotive applications. Standard-grade parts like BAV23S-TP do not carry this qualification but are suitable for general industrial use.

Q: Can BAS21S-TP be used if my application requires 225 mA?

A: No. BAS21S-TP is rated for 200 mA average rectified current, which is below the 225 mA requirement of the BAV23S,235. Using this part in an application requiring 225 mA would exceed its rated current capacity. Select a part rated for 225 mA or higher, such as BAV23S-TP, BAS21SLT1G, or BAV23S.

Q: What is the significance of the 50 ns reverse recovery time?

A: The 50 ns reverse recovery time indicates fast switching characteristics, making these diodes suitable for high-frequency rectification and switching applications. All listed substitute parts maintain this 50 ns specification except BAS21S-TP, which is classified as Small Signal with unspecified speed. For applications requiring fast recovery, avoid BAS21S-TP.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status, indicating they meet Restriction of Hazardous Substances regulations. This compliance is mandatory for most industrial and consumer applications.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component can be stored indefinitely without special moisture control measures. All listed parts carry MSL 1 rating, eliminating moisture-related handling constraints during assembly and storage.

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