BAS70-06WFILM Equivalent & Substitute Parts

Part Overview

The BAS70-06WFILM is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common anode with a maximum reverse voltage of 70 V and average rectified current of 70 mA per diode. The device is packaged in SC-70, SOT-323 surface mount configuration and is ROHS3 compliant with unlimited moisture sensitivity level.

The BAS70-06WFILM is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Alternative parts meeting the same electrical and mechanical specifications are available from multiple manufacturers in active production status.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Anode
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
Current - Reverse Leakage @ Vr	10 µA @ 70 V
Operating Temperature - Junction (Max)	150°C
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BAS70-06WFILM is determined by the following critical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 70 V minimum
Current - Average Rectified (Io) (per Diode): 70 mA minimum
Voltage - Forward (Vf) (Max) @ If: 1 V @ 15 mA or lower
Current - Reverse Leakage @ Vr: 10 µA @ 70 V or lower
Operating Temperature - Junction (Max): 150°C minimum

Mechanical Parameters:

Diode Configuration: 1 Pair Common Anode
Technology: Schottky
Mounting Type: Surface Mount
Package / Case: SC-70, SOT-323

Compliance Parameters:

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

Substitute parts must match all electrical parameters and maintain the common anode configuration. Package compatibility is limited to SC-70, SOT-323 form factors. Parts with different diode configurations (series connection) or alternative technologies (standard rectifier) are listed for reference but require circuit design verification before substitution.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Diode Configuration	Technology	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Ir @ Vr	Tj (Max)	Package	Product Status
BAS70-06WFILM	STMicroelectronics	1 Pair Common Anode	Schottky	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	150°C	SC-70, SOT-323	Obsolete
BAS70-06FILM	STMicroelectronics	1 Pair Common Anode	Schottky	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	150°C	TO-236-3, SC-59, SOT-23-3	Active
BAS70-04W,115	Nexperia USA Inc.	1 Pair Series Connection	Schottky	70 V	70 mA	410 mV @ 1 mA	10 µA @ 70 V	150°C	SC-70, SOT-323	Active
BAS7004WH6327XTSA1	Infineon Technologies	1 Pair Series Connection	Schottky	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	150°C	SC-70, SOT-323	Active
BAS7006WH6327XTSA1	Infineon Technologies	1 Pair Common Anode	Schottky	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	150°C	SC-70, SOT-323	Active
BAS70W-06-7-F	Diodes Incorporated	1 Pair Common Anode	Schottky	70 V	70 mA	1 V @ 15 mA	100 nA @ 50 V	150°C	SC-70, SOT-323	Active
BAW56WT-TP	Micro Commercial Co	1 Pair Common Anode	Standard	75 V	150 mA	1.25 V @ 150 mA	2.5 µA @ 75 V	150°C	SC-70, SOT-323	Active
BAS70-06W,115	Nexperia USA Inc.	1 Pair Common Anode	Schottky	70 V	70 mA	1 V @ 15 mA	10 µA @ 70 V	150°C	SC-70, SOT-323	Active

Engineering Selection Recommendations

Direct Substitutes (Common Anode Configuration, Schottky Technology, SC-70/SOT-323 Package):

The following parts provide direct electrical and mechanical compatibility with the BAS70-06WFILM:

BAS70-06W,115 (Nexperia USA Inc.): Active production status. Identical electrical specifications and common anode configuration. Parametric equivalent with 23,540 units in stock.
BAS7006WH6327XTSA1 (Infineon Technologies): Active production status. Common anode configuration with improved reverse leakage characteristics (100 nA @ 50 V versus 10 µA @ 70 V). 1,331 units in stock.
BAS70W-06-7-F (Diodes Incorporated): Active production status. Common anode configuration with improved reverse leakage characteristics (100 nA @ 50 V). 6,604 units in stock.

Alternative Package Option (Common Anode Configuration, Schottky Technology):

BAS70-06FILM (STMicroelectronics): Active production status. Identical electrical specifications and common anode configuration. Package differs (SOT-23-3 versus SOT-323). Requires PCB layout modification. 23,100 units in stock.

Configuration Alternatives (Schottky Technology, SC-70/SOT-323 Package):

BAS70-04W,115 (Nexperia USA Inc.): Active production status. Series connection configuration instead of common anode. Automotive grade with AEC-Q101 qualification. 98,471 units in stock. Circuit design verification required.
BAS7004WH6327XTSA1 (Infineon Technologies): Active production status. Series connection configuration with improved reverse leakage. 3,400 units in stock. Circuit design verification required.

Technology Alternative (Common Anode Configuration, SC-70/SOT-323 Package):

BAW56WT-TP (Micro Commercial Co): Active production status. Standard rectifier technology instead of Schottky. Higher forward voltage (1.25 V @ 150 mA) and higher current rating (150 mA). 2,485 units in stock. Circuit design verification required.

Frequently Asked Questions (FAQ)

Q: Can BAS70-06W,115 directly replace BAS70-06WFILM without circuit modification?

A: Yes. BAS70-06W,115 is a parametric equivalent with identical electrical specifications, common anode configuration, and SC-70/SOT-323 package. No circuit modification is required.

Q: What is the difference between common anode and series connection configurations?

A: Common anode configuration connects the anode terminals of both diodes together, allowing independent cathode connections. Series connection configuration connects the cathode of one diode to the anode of the other, creating a series path. These configurations have different circuit applications and are not interchangeable without circuit redesign.

Q: Can BAS70-06FILM be used as a substitute despite the different package designation?

A: BAS70-06FILM uses SOT-23-3 package while BAS70-06WFILM uses SOT-323 package. Although both are surface mount packages with similar pin counts, physical dimensions and PCB footprints differ. Substitution requires PCB layout modification and verification of mechanical fit.

Q: Why does BAW56WT-TP have higher current rating than BAS70-06WFILM?

A: BAW56WT-TP uses standard rectifier technology with a 150 mA current rating, compared to the 70 mA Schottky diode rating of BAS70-06WFILM. The higher current capability results from different semiconductor technology and junction design. Forward voltage characteristics also differ (1.25 V @ 150 mA versus 1 V @ 15 mA).

Q: What does reverse leakage current specification indicate?

A: Reverse leakage current (Ir) measures the small current flowing through the diode when reverse biased. Lower values indicate better diode quality and reduced power dissipation in reverse bias conditions. BAS7006WH6327XTSA1 and BAS70W-06-7-F offer improved reverse leakage (100 nA @ 50 V) compared to the original specification (10 µA @ 70 V).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the compliance status of BAS70-06WFILM.

Q: Which substitute has the highest inventory availability?

A: BAS70-04W,115 (Nexperia USA Inc.) has the highest inventory with 98,471 units in stock. However, this part uses series connection configuration and requires circuit design verification before substitution.

Q: Can series connection diodes be used in applications designed for common anode configuration?

A: No. Series and common anode configurations have fundamentally different electrical topologies. Series connection diodes cannot be directly substituted for common anode applications without complete circuit redesign and verification.

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