BAS70DW-04-7 Equivalent & Substitute Parts

Part Overview

The BAS70DW-04-7 is a Schottky diode array in a 2 pair series configuration rated for 70 V DC reverse voltage and 70 mA average rectified current per diode. This component is packaged in a 6-TSSOP (SOT-363) surface mount package and is designed for small signal applications with switching speeds up to 200 mA. The BAS70DW-04-7 is currently discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements.

Key Parameters

Parameter	Value
Diode Configuration	2 Pair Series Connection
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 ≤ 200 mA (Io), Any Speed
Reverse Recovery Time (trr)	5 ns
Current - Reverse Leakage @ Vr	100 nA @ 50 V
Operating Temperature - Junction	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	6-TSSOP, SC-88, SOT-363
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BAS70DW-04-7 is determined by the following critical parameters:

Electrical Parameters:

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
Diode Configuration: 2 Pair Series Connection
Technology: Schottky

Mechanical Parameters:

Package / Case: 6-TSSOP, SC-88, SOT-363
Mounting Type: Surface Mount

Environmental Parameters:

Operating Temperature - Junction: -55°C ~ 125°C (minimum requirement)
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must match all electrical parameters and package specifications. Variations in reverse recovery time (trr), reverse leakage current, and maximum junction temperature are acceptable provided they do not degrade circuit performance. Packaging format (Cut Tape, Digi-Reel, or Tape & Reel) does not affect electrical equivalence but impacts procurement and handling.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	trr	Ir @ Vr	Tj (Operating)	Package	Product Status	RoHS Status
BAS70DW-04-7	Diodes Incorporated	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Discontinued	RoHS Non-Compliant
BAS70BRW-7-F	Diodes Incorporated	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Active	RoHS3 Compliant
BAS70DW-04-7-F	Diodes Incorporated	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Active	RoHS3 Compliant
BAS70DW-04Q-7-F	Diodes Incorporated	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Active	RoHS3 Compliant
BAS7004SH6327XTSA1	Infineon Technologies	70 V	70 mA	1 V @ 15 mA	100 ps	100 nA @ 50 V	150°C (Max)	6-VSSOP, SOT-363	Active	RoHS3 Compliant
BAS7004SH6827XTSA1	Infineon Technologies	70 V	70 mA	1 V @ 15 mA	100 ps	100 nA @ 50 V	150°C (Max)	6-VSSOP, SOT-363	Active	RoHS3 Compliant
BAS70XY,115	Nexperia USA Inc.	70 V	70 mA	1 V @ 15 mA	Not Specified	10 µA @ 70 V	150°C (Max)	6-TSSOP, SOT-363	Active	RoHS3 Compliant
BAS70BRW-TP	Micro Commercial Co	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Active	RoHS3 Compliant
BAS70DW-04-TP	Micro Commercial Co	70 V	70 mA	1 V @ 15 mA	5 ns	100 nA @ 50 V	-55°C ~ 125°C	6-TSSOP, SOT-363	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Diodes Incorporated):

BAS70DW-04-7-F and BAS70BRW-7-F are direct parametric equivalents manufactured by Diodes Incorporated with identical electrical specifications to the original BAS70DW-04-7. Both parts are currently in active production status with RoHS3 compliance. BAS70DW-04-7-F offers the highest inventory availability (61,504 units) and is recommended as the primary replacement for discontinued stock. BAS70DW-04Q-7-F provides automotive-grade qualification (AEC-Q101) for applications requiring automotive reliability standards.

Secondary Substitutes (Micro Commercial Co):

BAS70DW-04-TP and BAS70BRW-TP are parametric equivalents from Micro Commercial Co with identical electrical performance and operating temperature range. These parts are actively produced and RoHS3 compliant. Selection between these and Diodes Incorporated alternatives depends on supplier availability and procurement preferences.

Alternative Substitutes (Infineon Technologies):

BAS7004SH6327XTSA1 and BAS7004SH6827XTSA1 are functionally equivalent Infineon parts with superior reverse recovery time (100 ps versus 5 ns) and higher maximum junction temperature (150°C). These parts use the 6-VSSOP package variant, which is mechanically compatible with SOT-363 footprints. Selection of Infineon parts is appropriate when faster switching performance or extended temperature operation is required.

Alternative Substitute (Nexperia USA Inc.):

BAS70XY,115 is a Nexperia part with identical voltage and current ratings. This part exhibits higher reverse leakage current (10 µA @ 70 V versus 100 nA @ 50 V) and is suitable for applications where leakage current is not a critical design constraint.

Compliance Considerations:

The original BAS70DW-04-7 is RoHS non-compliant. All substitute parts listed are RoHS3 compliant, meeting current regulatory requirements for new designs and production. All parts maintain REACH unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can BAS70DW-04-7-F directly replace BAS70DW-04-7 in existing designs?

A: Yes. BAS70DW-04-7-F is a parametric equivalent with identical electrical specifications, package, and pin configuration. The "-F" suffix indicates RoHS3 compliance. No circuit modifications are required.

Q: What is the difference between BAS70DW-04-7-F and BAS70DW-04Q-7-F?

A: BAS70DW-04Q-7-F includes automotive-grade qualification (AEC-Q101) and is packaged in Tape & Reel format. Electrical specifications are identical. Selection depends on application requirements and packaging format needs.

Q: Are Infineon BAS7004 parts pin-compatible with the original BAS70DW-04-7?

A: Yes. Both Infineon parts (BAS7004SH6327XTSA1 and BAS7004SH6827XTSA1) use the 6-VSSOP package variant of SOT-363, which maintains identical pin configuration and footprint compatibility. Reverse recovery time is significantly faster (100 ps versus 5 ns).

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are packaging and delivery formats that do not affect electrical performance. Tape & Reel is used for high-volume automated assembly. Cut Tape is used for lower-volume or manual assembly. Component specifications remain identical.

Q: Why does BAS70XY,115 show higher reverse leakage current?

A: BAS70XY,115 exhibits 10 µA reverse leakage at 70 V compared to 100 nA at 50 V for other parts. This difference reflects manufacturing process variations between manufacturers. Selection depends on circuit sensitivity to leakage current.

Q: Can I use parts with higher maximum junction temperature ratings?

A: Yes. Parts rated for 150°C maximum junction temperature (Infineon and Nexperia) can be used in applications designed for -55°C to 125°C operation. Higher temperature ratings provide additional thermal margin and are not detrimental to circuit function.

Q: Are all substitute parts currently in stock?

A: Inventory status varies by supplier and part number. BAS70DW-04-7-F (61,504 units), BAS70XY,115 (184,249 units), and BAS70DW-04Q-7-F (20,400 units) show the highest availability. Verify current inventory with your component supplier.

Q: What does RoHS3 compliance mean for this application?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This is required for most commercial and industrial applications sold in regulated markets.

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