NSVBAS70LT1G Equivalent & Substitute Parts

Part Overview

The NSVBAS70LT1G is a Schottky diode manufactured by onsemi, rated for 70V DC reverse voltage with 70mA average rectified current in a surface mount SOT-23-3 package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to enable design flexibility, support supply chain alternatives, and accommodate manufacturing or sourcing constraints.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	70 V
Current - Average Rectified (Io)	70 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 15 mA
Current - Reverse Leakage @ Vr	10 µA @ 70 V
Capacitance @ Vr, F	2 pF @ 0V, 1MHz
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
Technology	Schottky
Operating Temperature - Junction	-55°C ~ 150°C

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical parameter alignment with the NSVBAS70LT1G:

Parametric Equivalent: Parts that match all critical electrical specifications (70V reverse voltage, 70mA average rectified current, forward voltage, reverse leakage, and capacitance) and package configuration. These parts are direct functional replacements with identical performance characteristics.

Direct Manufacturer Equivalent: Parts from alternative manufacturers that meet the same electrical specifications and package requirements but may differ in packaging format (Bulk versus Tape & Reel).

Upgrade/Similar Parts: Parts that maintain the 70V reverse voltage and SOT-23-3 package but feature higher current ratings (200mA), improved reverse recovery time, lower reverse leakage, or automotive qualification. These parts are electrically compatible but offer enhanced performance characteristics.

Key Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 70 V (mandatory match)
Current - Average Rectified (Io): 70 mA minimum (equal or higher acceptable)
Package / Case: TO-236-3, SC-59, SOT-23-3 (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Technology: Schottky (mandatory match)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Package	Product Status	Temp Range
NSVBAS70LT1G	onsemi	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	SOT-23-3	Active	-55°C ~ 150°C
BAS70LT1G	onsemi	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	SOT-23-3	Active	-55°C ~ 150°C
BAS70,235	NXP USA Inc.	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	SOT-23-3	Active	-55°C ~ 150°C
BAS70,215	Nexperia USA Inc.	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	SOT-23-3	Active	-55°C ~ 150°C
BAR18FILM	STMicroelectronics	70 V	70 mA	410 mV @ 1 mA	200 nA @ 50 V	SOT-23-3	Active	-55°C ~ 150°C
BAS70-00-HE3-08	Vishay General Semiconductor - Diodes Division	70 V	200 mA	1 V @ 15 mA	100 nA @ 50 V	SOT-23-3	Last Time Buy	-55°C ~ 125°C
BAS70-7-F	Diodes Incorporated	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	SOT-23-3	Active	-55°C ~ 125°C
BAS70-AU_R1_000A1	Panjit International Inc.	70 V	200 mA	900 mV @ 15 mA	1 µA @ 70 V	SOT-23-3	Active	-55°C ~ 150°C
BAS70-TP	Micro Commercial Co	70 V	70 mA	1 V @ 15 mA	200 nA @ 50 V	SOT-23-3	Active	-55°C ~ 125°C
BAS70E6327HTSA1	Infineon Technologies	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	SOT-23-3	Active	-55°C ~ 125°C
BAS70E6433HTMA1	Infineon Technologies	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	SOT-23-3	Active	-55°C ~ 125°C

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): BAS70LT1G from onsemi is a parametric equivalent with identical electrical specifications and operating temperature range. This part is suitable for direct substitution without circuit redesign.

Direct Manufacturer Alternatives: BAS70,235 from NXP USA Inc. and BAS70,215 from Nexperia USA Inc. provide equivalent electrical performance. BAS70,235 is supplied in Bulk packaging, while BAS70,215 is supplied in Tape & Reel format. Both maintain Active product status and full RoHS3 compliance.

Active Status Alternatives with Matching Specifications: BAS70-7-F (Diodes Incorporated), BAS70-TP (Micro Commercial Co), BAS70E6327HTSA1 (Infineon Technologies), and BAS70E6433HTMA1 (Infineon Technologies) all maintain 70V/70mA specifications with Active product status. These parts feature improved reverse leakage characteristics (100 nA @ 50V versus 10 µA @ 70V) and are suitable for applications requiring lower leakage performance.

Enhanced Current Rating Options: BAS70-00-HE3-08 (Vishay) and BAS70-AU_R1_000A1 (Panjit) provide 200mA average rectified current while maintaining 70V reverse voltage rating. BAS70-AU_R1_000A1 includes AEC-Q101 automotive qualification and extended temperature range (-55°C ~ 150°C). BAS70-00-HE3-08 is designated Last Time Buy status.

Alternative Performance Profile: BAR18FILM from STMicroelectronics maintains 70V/70mA specifications with improved reverse leakage (200 nA @ 50V) and lower forward voltage at 1mA (410 mV). This part is suitable for applications prioritizing low leakage performance.

Product Status Consideration: All substitute parts except BAS70-00-HE3-08 maintain Active product status. BAS70-00-HE3-08 is designated Last Time Buy, indicating limited future availability.

Frequently Asked Questions (FAQ)

Q: Can BAS70LT1G be directly replaced with NSVBAS70LT1G? A: Yes. BAS70LT1G is a parametric equivalent from onsemi with identical electrical specifications (70V, 70mA), forward voltage characteristics, reverse leakage, and operating temperature range (-55°C ~ 150°C). Both parts use SOT-23-3 packaging and are RoHS3 compliant.

Q: What is the difference between BAS70,235 and BAS70,215? A: Both parts meet identical electrical specifications (70V, 70mA, 1V forward voltage @ 15mA). The primary difference is packaging format: BAS70,235 is supplied in Bulk, while BAS70,215 is supplied in Tape & Reel. BAS70,215 is manufactured by Nexperia USA Inc., while BAS70,235 is from NXP USA Inc.

Q: Can I use BAS70-00-HE3-08 as a substitute for NSVBAS70LT1G? A: BAS70-00-HE3-08 is electrically compatible with matching 70V reverse voltage and SOT-23-3 package. However, it features 200mA average rectified current (versus 70mA) and is designated Last Time Buy status. It is suitable for applications requiring higher current capability but should not be selected for new designs due to limited availability.

Q: What are the advantages of BAS70-AU_R1_000A1 over NSVBAS70LT1G? A: BAS70-AU_R1_000A1 provides 200mA average rectified current (versus 70mA), includes AEC-Q101 automotive qualification, and maintains the full operating temperature range (-55°C ~ 150°C). It is suitable for automotive applications and designs requiring higher current capacity while maintaining 70V reverse voltage rating.

Q: Are all substitute parts RoHS3 compliant? A: All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance profile of NSVBAS70LT1G.

Q: Which substitute offers the lowest reverse leakage current? A: BAR18FILM, BAS70-7-F, BAS70E6327HTSA1, and BAS70E6433HTMA1 all feature 100 nA reverse leakage @ 50V, compared to 10 µA @ 70V for NSVBAS70LT1G. These parts are suitable for applications requiring minimal leakage performance.

Q: Can I substitute parts with different current ratings? A: Yes. Parts rated for higher current (200mA) are electrically compatible with circuits designed for 70mA operation. The higher current rating provides design margin and is not detrimental to circuit function. However, parts with lower current ratings cannot be substituted for the NSVBAS70LT1G.

Q: What is the operating temperature difference between substitute parts? A: NSVBAS70LT1G and BAS70LT1G support -55°C ~ 150°C. Most alternative parts (BAS70-7-F, BAS70-TP, BAS70E6327HTSA1, BAS70E6433HTMA1) support -55°C ~ 125°C. BAS70-AU_R1_000A1 supports the full -55°C ~ 150°C range. Verify application temperature requirements before selection.

Q: Are Infineon BAS70E6327HTSA1 and BAS70E6433HTMA1 interchangeable? A: Yes. Both Infineon parts feature identical electrical specifications (70V, 70mA, 1V forward voltage @ 15mA), reverse leakage (100 nA @ 50V), and operating temperature range (-55°C ~ 125°C). Both are supplied in Tape & Reel format with PG-SOT23 package designation.

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