BAS69KFILM Equivalent & Substitute Parts

Part Overview

The BAS69KFILM is a Schottky diode manufactured by STMicroelectronics, rated for 15 V DC reverse voltage and 10 mA average rectified current in a surface mount SOD-523 package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain functional compatibility within the electrical and mechanical constraints of the original application.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	15	V
Current - Average Rectified (Io)	10	mA
Voltage - Forward (Vf) (Max) @ If	570 mV @ 10 mA	mV
Current - Reverse Leakage @ Vr	230	nA @ 15 V
Capacitance @ Vr, F	1	pF @ 0V, 1MHz
Package / Case	SC-79, SOD-523	—
Operating Temperature - Junction (Max)	150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BAS69KFILM are identified based on the following criteria:

Mandatory Compatibility Parameters:

Package / Case: SC-79, SOD-523 (surface mount, identical footprint)
Technology: Schottky diode
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Functional Compatibility Parameters:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 15 V
Current - Average Rectified (Io): Must equal or exceed 10 mA
Operating Temperature - Junction (Max): Must equal or exceed 150°C

Substitute parts may exceed the original specifications for voltage, current, and capacitance ratings without compromising circuit functionality, provided they maintain the same package footprint and environmental compliance certifications.

Parameter Comparison

Parameter	BAS69KFILM	BAS70KFILM	1PS79SB10,115
Manufacturer	STMicroelectronics	STMicroelectronics	Nexperia USA Inc.
Voltage - DC Reverse (Vr) (Max)	15 V	70 V	30 V
Current - Average Rectified (Io)	10 mA	70 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	570 mV @ 10 mA	1 V @ 15 mA	800 mV @ 100 mA
Current - Reverse Leakage @ Vr	230 nA @ 15 V	10 µA @ 70 V	2 µA @ 25 V
Capacitance @ Vr, F	1 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz	10 pF @ 1V, 1MHz
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523
Operating Temperature - Junction (Max)	150°C	150°C	125°C
Technology	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
Grade	—	—	Automotive
Qualification	—	—	AEC-Q100

Engineering Selection Recommendations

BAS70KFILM (STMicroelectronics)

The BAS70KFILM is an active product from the same manufacturer as the BAS69KFILM. It maintains identical package specifications (SC-79, SOD-523) and environmental compliance (ROHS3, MSL 1). The BAS70KFILM exceeds the original voltage rating (70 V vs. 15 V) and current rating (70 mA vs. 10 mA), providing direct functional substitution with enhanced performance margins. Operating temperature rating remains at 150°C maximum. This part is suitable for applications requiring direct replacement without circuit redesign.

1PS79SB10,115 (Nexperia USA Inc.)

The 1PS79SB10,115 is an active automotive-grade Schottky diode qualified to AEC-Q100 standards. It maintains the required SOD-523 package and ROHS3 compliance. The part exceeds voltage (30 V vs. 15 V) and current (200 mA vs. 10 mA) specifications of the original component. The operating temperature maximum is 125°C, which is 25°C lower than the BAS69KFILM. This part is suitable for applications where automotive qualification and higher current handling are required, provided the lower junction temperature rating is acceptable for the thermal environment.

Frequently Asked Questions (FAQ)

Q: Can BAS70KFILM directly replace BAS69KFILM without circuit modification?

A: Yes. The BAS70KFILM maintains identical package geometry (SOD-523), mounting type (surface mount), and environmental compliance (ROHS3, MSL 1). The higher voltage and current ratings do not prevent direct substitution in circuits designed for the BAS69KFILM specifications.

Q: What is the primary difference between BAS70KFILM and 1PS79SB10,115?

A: Both parts exceed the BAS69KFILM electrical specifications and share the same package. The BAS70KFILM is a general-purpose Schottky diode with 150°C maximum junction temperature. The 1PS79SB10,115 is automotive-qualified (AEC-Q100) with 125°C maximum junction temperature and higher current capacity (200 mA vs. 70 mA).

Q: Does the higher capacitance of 1PS79SB10,115 (10 pF) affect circuit performance compared to BAS69KFILM (1 pF)?

A: Capacitance differences are determined by the specific electrical characteristics of each diode design. The 1PS79SB10,115 capacitance specification is provided for the design parameters of that component. Circuit performance impact depends on the specific application frequency and impedance characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both BAS70KFILM and 1PS79SB10,115 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance of the original BAS69KFILM.

Q: Which substitute part should be selected for automotive applications?

A: The 1PS79SB10,115 is qualified to AEC-Q100 automotive standards and is the appropriate selection for automotive applications. The BAS70KFILM is suitable for general-purpose applications.

Q: Is the lower operating temperature rating of 1PS79SB10,115 (125°C vs. 150°C) a limitation?

A: The operating temperature rating applies to the maximum junction temperature the component can withstand. Selection depends on the thermal environment of the specific application. If the application requires operation above 125°C junction temperature, the BAS70KFILM is the appropriate choice.

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