BAS70-05-7-F Equivalent & Substitute Parts

Part Overview

The BAS70-05-7-F is a Schottky diode array manufactured by Diodes Incorporated, configured as 1 pair common cathode with a maximum reverse voltage of 70 V and average rectified current of 70 mA per diode. The device is housed in a SOT-23-3 surface mount package and is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level.

Equivalent and substitute parts are necessary to address component availability, supply chain continuity, and design flexibility across multiple manufacturers while maintaining electrical and mechanical compatibility within specified parameters.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Cathode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	70	V
Current - Average Rectified (Io) (per Diode)	70	mA (DC)
Voltage - Forward (Vf) (Max) @ If	1 V @ 15 mA	—
Speed Classification	Small Signal ≤ 200mA (Io), Any Speed	—
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature - Junction (Max)	125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BAS70-05-7-F are classified based on electrical parameter compatibility and package form factor. The primary substitution criteria are:

Electrical Parameters (Critical for Substitution):

Diode configuration: 1 Pair Common Cathode
Technology: Schottky
Maximum reverse voltage (Vr): 70 V
Average rectified current (Io): 70 mA per diode
Forward voltage (Vf): 1 V @ 15 mA
Speed classification: Small Signal ≤ 200mA (Io), Any Speed

Mechanical Parameters (Package Compatibility):

Mounting type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3 (primary group) or SC-70, SOT-323 (alternative form factor)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Electrical and Package Equivalents (SOT-23-3 Package): Parts with identical electrical specifications and SOT-23-3 package form factor from alternative manufacturers.
Electrical Equivalents with Alternative Package (SOT-323 Package): Parts with identical electrical specifications but different surface mount package form factor (SC-70, SOT-323), requiring PCB layout modification.
Higher Current Capability (200 mA): Parts with identical voltage specifications but increased current rating, suitable for applications with higher current demands while maintaining reverse voltage compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [mA]	Vf (Max) @ If	Package / Case	Tj (Max) [°C]	Product Status
BAS70-05-7-F	Diodes Incorporated	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	125	Active
BAS70-05-E3-08	Vishay General Semiconductor - Diodes Division	70	200	410 mV @ 1 mA	TO-236-3, SC-59, SOT-23-3	125	Active
BAS70-05FILM	STMicroelectronics	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS7005E6327HTSA1	Infineon Technologies	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS70-05,215	NXP USA Inc.	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS70-05,235	Nexperia USA Inc.	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS70-05W,115	Nexperia USA Inc.	70	70	1 V @ 15 mA	SC-70, SOT-323	150	Active
BAS70-05W,135	Nexperia USA Inc.	70	70	1 V @ 15 mA	SC-70, SOT-323	150	Active
BAS7005E6433HTMA1	Infineon Technologies	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS70C_R1_00001	Panjit International Inc.	70	200	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	150	Active
BAS70-05 RFG	Taiwan Semiconductor Corporation	70	70	1 V @ 15 mA	TO-236-3, SC-59, SOT-23-3	125	Active

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical and Package Specifications):

The following parts are direct substitutes for the BAS70-05-7-F with identical electrical parameters and SOT-23-3 package form factor:

BAS70-05FILM (STMicroelectronics): Identical electrical specifications with maximum junction temperature of 150°C. ROHS3 compliant, MSL 1.
BAS7005E6327HTSA1 (Infineon Technologies): Identical electrical specifications with maximum junction temperature of 150°C. ROHS3 compliant, MSL 1.
BAS70-05,215 (NXP USA Inc.): Identical electrical specifications with maximum junction temperature of 150°C. ROHS3 compliant.
BAS70-05,235 (Nexperia USA Inc.): Identical electrical specifications with maximum junction temperature of 150°C. ROHS3 compliant, MSL 1.
BAS7005E6433HTMA1 (Infineon Technologies): Identical electrical specifications with maximum junction temperature of 150°C. ROHS3 compliant, MSL 1.
BAS70-05 RFG (Taiwan Semiconductor Corporation): Identical electrical specifications and maximum junction temperature of 125°C. ROHS3 compliant, MSL 1.

Alternative Package Form Factor (Electrical Equivalents):

The following parts provide identical electrical specifications in an alternative surface mount package (SC-70, SOT-323), requiring PCB layout modification:

BAS70-05W,115 (Nexperia USA Inc.): Identical electrical specifications, SC-70/SOT-323 package, maximum junction temperature 150°C. ROHS3 compliant, MSL 1.
BAS70-05W,135 (Nexperia USA Inc.): Identical electrical specifications, SC-70/SOT-323 package, maximum junction temperature 150°C. ROHS3 compliant, MSL 1.

Higher Current Capability (200 mA Rating):

The following parts provide identical voltage specifications with increased current rating:

BAS70-05-E3-08 (Vishay General Semiconductor - Diodes Division): 200 mA per diode rating, SOT-23-3 package, maximum junction temperature 125°C. ROHS3 compliant.
BAS70C_R1_00001 (Panjit International Inc.): 200 mA per diode rating, SOT-23-3 package, maximum junction temperature 150°C. ROHS3 compliant, MSL 1.

All substitute parts listed maintain Active product status and ROHS3 compliance. Selection should be based on availability, supply chain requirements, and application-specific thermal and current demands.

Frequently Asked Questions (FAQ)

Q: Can BAS70-05FILM be used as a direct replacement for BAS70-05-7-F?

A: Yes. BAS70-05FILM provides identical electrical specifications (70 V reverse voltage, 70 mA average rectified current, 1 V forward voltage @ 15 mA) and is housed in the same SOT-23-3 package. Both devices are ROHS3 compliant with MSL 1. The primary difference is the maximum junction temperature (150°C for BAS70-05FILM versus 125°C for BAS70-05-7-F), which represents an extended operating range.

Q: What is the difference between BAS70-05-7-F and BAS70-05W,115?

A: Both devices have identical electrical specifications (70 V, 70 mA, 1 V @ 15 mA). The primary difference is the package form factor: BAS70-05-7-F uses SOT-23-3 (TO-236-3, SC-59), while BAS70-05W,115 uses SOT-323 (SC-70). These packages have different pin configurations and footprints, requiring PCB layout modification for substitution.

Q: Can I use BAS70-05-E3-08 in place of BAS70-05-7-F?

A: BAS70-05-E3-08 has a higher current rating (200 mA per diode versus 70 mA) and identical voltage specifications (70 V). It is electrically compatible and uses the same SOT-23-3 package. However, the forward voltage specification differs (410 mV @ 1 mA for BAS70-05-E3-08 versus 1 V @ 15 mA for BAS70-05-7-F), indicating different measurement conditions. Both devices are Active and ROHS3 compliant.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed in this reference are ROHS3 compliant and maintain Active product status. Moisture sensitivity level is MSL 1 (Unlimited) for all parts except BAS70-05-E3-08, for which MSL information is not specified in the provided data.

Q: What does "1 Pair Common Cathode" configuration mean?

A: This configuration indicates the diode array contains two independent Schottky diodes with a shared cathode connection. This is the standard configuration for all listed substitute parts and the main part.

Q: Can I substitute BAS70-05-7-F with a part rated for 200 mA?

A: Yes. Parts rated for 200 mA (BAS70-05-E3-08 and BAS70C_R1_00001) have identical voltage specifications and can handle the same 70 V reverse voltage. The higher current rating provides additional design margin and does not create incompatibility with circuits designed for 70 mA operation. Both parts are Active and ROHS3 compliant.

Q: What is the significance of the maximum junction temperature difference?

A: The BAS70-05-7-F has a maximum junction temperature of 125°C, while most substitute parts are rated to 150°C. This difference reflects the thermal operating range of each device. Parts with 150°C ratings provide extended thermal margin and are suitable for higher ambient temperature applications. Selection should be based on application thermal requirements.

Q: Are there any packaging differences I should be aware of?

A: The primary packaging difference is between SOT-23-3 (used by BAS70-05-7-F and most substitutes) and SOT-323 (used by BAS70-05W,115 and BAS70-05W,135). These packages have different physical dimensions and pin layouts, requiring PCB footprint modification. All other substitute parts use the same SOT-23-3 package and are pin-compatible.

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