BAS70,235 Equivalent & Substitute Parts

Part Overview

The BAS70,235 is a Schottky rectifier diode manufactured by Nexperia USA Inc., rated for 70 V DC reverse voltage and 70 mA average rectified current in a surface mount TO-236AB package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and manufacturing standards. Alternative sources become necessary for supply chain continuity, design flexibility across manufacturing partners, and availability optimization.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
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
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BAS70,235 are classified into three categories based on electrical and mechanical compatibility:

Parametric Equivalent: Parts with identical electrical specifications and package designation from the same manufacturer. These parts are direct functional replacements with no design changes required.

Direct Manufacturer Equivalent: Parts from alternative manufacturers (onsemi, Diodes Incorporated, Micro Commercial Co, Infineon Technologies, MACOM Technology Solutions) that meet or exceed the core electrical parameters: 70 V reverse voltage, 70 mA average rectified current, 1 V forward voltage at 15 mA, and surface mount SOT-23-3 / TO-236 package compatibility.

Similar Specification Parts: Parts that maintain the 70 V reverse voltage and SOT-23-3 package but may differ in current rating, power dissipation, or reverse recovery time. These parts are suitable for applications where the specified current or power handling is not a limiting constraint.

Key substitution criteria:

Voltage - DC Reverse (Vr) (Max): 70 V (mandatory match)
Current - Average Rectified (Io): 70 mA minimum
Package / Case: TO-236-3, SC-59, SOT-23-3 (mechanical compatibility)
Technology: Schottky (functional requirement)
RoHS Status: ROHS3 Compliant (regulatory requirement)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [V]	Ir @ Vr [µA / nA]	Capacitance @ Vr [pF]	Package	Tj (Max) [°C]	RoHS Status
BAS70,235	Nexperia USA Inc.	70	70	1 @ 15 mA	10 µA @ 70 V	2 @ 0V, 1MHz	TO-236AB	150	ROHS3
BAS70,215	Nexperia USA Inc.	70	70	1 @ 15 mA	10 µA @ 70 V	2 @ 0V, 1MHz	TO-236AB	150	ROHS3
BAS70LT1G	onsemi	70	70	1 @ 15 mA	10 µA @ 70 V	2 @ 0V, 1MHz	SOT-23-3 (TO-236)	150	ROHS3
BAS70-7-F	Diodes Incorporated	70	70	1 @ 15 mA	100 nA @ 50 V	2 @ 0V, 1MHz	SOT-23-3	125	ROHS3
BAS70-TP	Micro Commercial Co	70	70	1 @ 15 mA	200 nA @ 50 V	2 @ 0V, 1MHz	SOT-23	125	ROHS3
BAS70E6327HTSA1	Infineon Technologies	70	70	1 @ 15 mA	100 nA @ 50 V	2 @ 0V, 1MHz	PG-SOT23	125	ROHS3
BAS70E6433HTMA1	Infineon Technologies	70	70	1 @ 15 mA	100 nA @ 50 V	2 @ 0V, 1MHz	PG-SOT23	125	ROHS3
MA4E1340A1-287T	MACOM Technology Solutions	70	200	—	—	2 @ 0V, 1MHz	SOT-23	125	ROHS3
MMBD701LT1G	onsemi	70	—	—	—	1 @ 20V, 1MHz	SOT-23-3 (TO-236)	125	ROHS3
NSVBAS70LT1G	onsemi	70	70	1 @ 15 mA	10 µA @ 70 V	2 @ 0V, 1MHz	SOT-23-3 (TO-236)	150	ROHS3
SMMBD701LT1G	onsemi	70	—	—	—	1 @ 20V, 1MHz	SOT-23-3 (TO-236)	125	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents)

BAS70,215 from Nexperia USA Inc. is a parametric equivalent with identical electrical specifications and package designation. This part is suitable for direct replacement without design modification.

BAS70LT1G from onsemi and NSVBAS70LT1G from onsemi are direct manufacturer equivalents meeting all core electrical parameters with SOT-23-3 package compatibility. Both parts maintain 70 V reverse voltage, 70 mA average rectified current, and 150°C maximum junction temperature. These parts are interchangeable with the BAS70,235 in applications requiring these specifications.

Secondary Substitutes (Equivalent Electrical Performance)

BAS70-7-F from Diodes Incorporated, BAS70-TP from Micro Commercial Co, BAS70E6327HTSA1, and BAS70E6433HTMA1 from Infineon Technologies all meet the 70 V reverse voltage and 70 mA current requirements. These parts are suitable for applications where the maximum junction temperature of 125°C is acceptable. All parts maintain ROHS3 compliance and SOT-23-3 package compatibility.

Alternative Specifications (Higher Current Capability)

MA4E1340A1-287T from MACOM Technology Solutions provides 200 mA current rating with 70 V reverse voltage in SOT-23 package. This part is suitable for applications requiring higher current handling than the standard 70 mA specification. Moisture Sensitivity Level is MSL 3 (168 Hours), differing from the BAS70,235 MSL 1 rating.

RF Diode Alternatives (Lower Current, Higher Power Dissipation)

MMBD701LT1G and SMMBD701LT1G from onsemi are RF Schottky diodes rated for 70 V with 200 mW power dissipation. These parts are suitable for RF applications where power handling is prioritized over average rectified current specification. Capacitance is 1 pF at 20 V, 1 MHz, differing from the 2 pF specification of the BAS70,235.

Compliance and Regulatory Status

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the BAS70,235. All parts are classified as Active product status. Moisture Sensitivity Level is MSL 1 (Unlimited) for all parts except MA4E1340A1-287T, which is MSL 3 (168 Hours).

Frequently Asked Questions (FAQ)

Q: Can BAS70,215 be used as a direct replacement for BAS70,235?

A: Yes. BAS70,215 is a parametric equivalent from Nexperia USA Inc. with identical electrical specifications, package designation (TO-236AB), and operating temperature range (150°C maximum junction temperature). No design changes are required.

Q: What is the difference between BAS70LT1G and BAS70,235?

A: BAS70LT1G from onsemi is manufactured by a different supplier but meets identical electrical specifications: 70 V reverse voltage, 70 mA average rectified current, 1 V forward voltage at 15 mA, and 150°C maximum junction temperature. The package designation differs slightly (SOT-23-3 (TO-236) versus TO-236AB), but both are mechanically compatible TO-236 variants. BAS70LT1G is suitable for direct substitution.

Q: Are the Infineon parts BAS70E6327HTSA1 and BAS70E6433HTMA1 interchangeable with BAS70,235?

A: Both Infineon parts meet the core electrical specifications of 70 V reverse voltage and 70 mA average rectified current. However, the maximum junction temperature is 125°C, compared to 150°C for the BAS70,235. These parts are suitable substitutes for applications where the lower temperature rating is acceptable. Package compatibility is maintained (PG-SOT23 is a SOT-23-3 variant).

Q: Can MA4E1340A1-287T replace BAS70,235 in all applications?

A: MA4E1340A1-287T provides higher current capability (200 mA) and power dissipation (250 mW) compared to the BAS70,235 (70 mA, unspecified power dissipation). This part is suitable for applications requiring higher current handling. However, the Moisture Sensitivity Level is MSL 3 (168 Hours) instead of MSL 1 (Unlimited), requiring additional moisture control during storage and handling. Package compatibility is maintained (SOT-23).

Q: What is the difference between MMBD701LT1G and BAS70,235?

A: MMBD701LT1G is an RF Schottky diode optimized for RF applications with 200 mW power dissipation. The average rectified current specification is not provided for this part. Capacitance is 1 pF at 20 V, 1 MHz, compared to 2 pF at 0 V, 1 MHz for the BAS70,235. This part is suitable for RF applications where power handling is the primary design criterion. Package compatibility is maintained (SOT-23-3 (TO-236)).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the BAS70,235.

Q: What packaging options are available for BAS70 Schottky diodes?

A: All substitute parts are available in surface mount packages: TO-236-3, SC-59, SOT-23-3, or equivalent designations (TO-236AB, SOT-23-3 (TO-236), PG-SOT23, SOT-23). These packages are mechanically compatible and suitable for automated assembly. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging options are available depending on the manufacturer and part number.

Q: Which substitute part has the highest maximum junction temperature?

A: BAS70,235, BAS70,215, BAS70LT1G, and NSVBAS70LT1G all have a maximum junction temperature of 150°C. All other substitute parts are rated for 125°C maximum junction temperature.

Q: Can BAS70-TP from Micro Commercial Co be used instead of BAS70,235?

A: Yes. BAS70-TP meets the core electrical specifications of 70 V reverse voltage and 70 mA average rectified current. The maximum junction temperature is 125°C compared to 150°C for the BAS70,235. Reverse leakage current is 200 nA at 50 V, compared to 10 µA at 70 V for the BAS70,235. Package compatibility is maintained (SOT-23). This part is suitable for applications where the lower temperature rating is acceptable.

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