BAS85,135 Equivalent & Substitute Parts

Part Overview

The BAS85,135 is a 30 V, 200 mA Schottky diode manufactured by Nexperia USA Inc., designed for surface mount applications in the LLDS (MiniMelf) package. This component is classified as a small signal rectifier diode with an active product status and full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or specific packaging preferences while maintaining identical functional specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	800 mV @ 100 mA	mV
Current - Reverse Leakage @ Vr	2.3	µA @ 25 V
Capacitance @ Vr, F	10	pF @ 1V, 1MHz
Technology	Schottky
Mounting Type	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80
Operating Temperature - Junction (Max)	125	°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BAS85,135 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent (Direct Substitution): Parts that maintain identical electrical specifications across all critical parameters including reverse voltage (30 V), average rectified current (200 mA), forward voltage (800 mV @ 100 mA), reverse leakage current (2.3 µA @ 25 V), and capacitance (10 pF @ 1V, 1MHz). These parts differ only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and are functionally interchangeable in circuit applications.

Similar Electrical Performance (Conditional Substitution): Parts that maintain the core electrical specifications (30 V reverse voltage, 200 mA average rectified current, 800 mV forward voltage, 2.3 µA reverse leakage) but may differ in package type, supplier device package designation, or additional qualifications. These parts are suitable for applications where package compatibility can be accommodated through PCB redesign or where automotive-grade qualification is beneficial.

Higher Performance Variants (Application-Dependent): Parts with enhanced electrical ratings (higher voltage or current capacity) that operate within the BAS85,135 application envelope but provide additional design margin. These are suitable only when circuit topology permits the use of higher-rated components without adverse effects.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	C @ Vr [pF]	Package	Qualification
BAS85,135	Nexperia USA Inc.	30	200	800 @ 100 mA	2.3 @ 25 V	10 @ 1V, 1MHz	DO-213AC, MINI-MELF, SOD-80	Standard
BAS85,115	Nexperia USA Inc.	30	200	800 @ 100 mA	2.3 @ 25 V	10 @ 1V, 1MHz	DO-213AC, MINI-MELF, SOD-80	Standard
BAS285-GS08	Vishay General Semiconductor	30	200	800 @ 100 mA	2.3 @ 25 V	10 @ 1V, 1MHz	SOD-80 QuadroMELF	AEC-Q101 Automotive
BAS285-GS18	Vishay General Semiconductor	30	200	800 @ 100 mA	2.3 @ 25 V	10 @ 1V, 1MHz	SOD-80 QuadroMELF	AEC-Q101 Automotive
BAT165E6327HTSA1	Infineon Technologies	40	750	740 @ 750 mA	50 @ 40 V	12 @ 10V, 1MHz	SC-76, SOD-323	Standard
TMMBAT42FILM	STMicroelectronics	30	200	1000 @ 200 mA	0.5 @ 25 V	7 @ 1V, 1MHz	DO-213AA (Glass), Mini MELF	Standard
TMMBAT43FILM	STMicroelectronics	30	200	1000 @ 200 mA	0.5 @ 25 V	7 @ 1V, 1MHz	DO-213AA (Glass), Mini MELF	Standard

Engineering Selection Recommendations

BAS85,115 (Nexperia USA Inc.): This part is the primary parametric equivalent to BAS85,135, offering identical electrical specifications and compliance status. The only distinction is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Selection of BAS85,115 is appropriate when supply availability or procurement requirements favor this packaging configuration. Both parts maintain ROHS3 compliance and MSL 1 rating.

BAS285-GS08 and BAS285-GS18 (Vishay General Semiconductor): These parts maintain identical electrical performance to the BAS85,135 across all critical parameters. Both are qualified to AEC-Q101 automotive standards, providing additional qualification benefit for applications requiring automotive-grade components. Package designation differs (SOD-80 QuadroMELF versus MINI-MELF), requiring verification of PCB footprint compatibility. Selection is appropriate when automotive qualification is required or when Vishay supply chain preference is established.

BAT165E6327HTSA1 (Infineon Technologies): This part exhibits higher electrical ratings (40 V reverse voltage, 750 mA average rectified current) and operates with different electrical characteristics (740 mV forward voltage at 750 mA, 50 µA reverse leakage at 40 V). The SOD-323 package is significantly smaller than the MINI-MELF package of the BAS85,135. This part is suitable only for applications where the higher ratings provide design margin and where PCB layout can accommodate the smaller package footprint.

TMMBAT42FILM and TMMBAT43FILM (STMicroelectronics): These parts maintain the 30 V reverse voltage and 200 mA average rectified current ratings of the BAS85,135. Forward voltage is specified at 1000 mV @ 200 mA (compared to 800 mV @ 100 mA for BAS85,135), and reverse leakage is significantly lower at 500 nA @ 25 V. The DO-213AA (Glass) Mini MELF package is mechanically compatible with the BAS85,135 MINI-MELF package. Selection is appropriate when lower reverse leakage characteristics are beneficial to circuit performance.

Frequently Asked Questions (FAQ)

Q: Can BAS85,115 be used as a direct replacement for BAS85,135?

A: Yes. BAS85,115 is a parametric equivalent with identical electrical specifications (30 V reverse voltage, 200 mA average rectified current, 800 mV forward voltage, 2.3 µA reverse leakage, 10 pF capacitance). The parts differ only in packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Both are manufactured by Nexperia USA Inc. and maintain identical compliance status. Direct substitution is appropriate without circuit modification.

Q: Are the Vishay BAS285-GS08 and BAS285-GS18 parts interchangeable with BAS85,135?

A: The BAS285-GS08 and BAS285-GS18 parts maintain identical electrical specifications to BAS85,135 across all critical parameters. Both are qualified to AEC-Q101 automotive standards. The primary consideration is package compatibility: these parts use SOD-80 QuadroMELF packaging, which differs from the MINI-MELF package of BAS85,135. PCB footprint verification is required before substitution. If footprint compatibility is confirmed, these parts are suitable replacements.

Q: What is the difference between TMMBAT42FILM and TMMBAT43FILM?

A: Both TMMBAT42FILM and TMMBAT43FILM maintain identical electrical specifications and package type (DO-213AA Glass, Mini MELF). The parts are functionally equivalent for the BAS85,135 substitution application. Both offer lower reverse leakage current (500 nA @ 25 V) compared to BAS85,135 (2.3 µA @ 25 V) and operate across the temperature range of -65°C to 125°C.

Q: Can BAT165E6327HTSA1 replace BAS85,135 in all applications?

A: BAT165E6327HTSA1 exhibits higher electrical ratings (40 V reverse voltage, 750 mA average rectified current) and operates with different electrical characteristics. The SOD-323 package is significantly smaller than the MINI-MELF package of BAS85,135, requiring PCB redesign. This part is suitable only for applications where the higher ratings provide design margin and where the smaller package footprint can be accommodated in the circuit layout.

Q: What packaging formats are available for BAS85,135 substitutes?

A: Substitute parts are available in the following package types: DO-213AC MINI-MELF (BAS85,135, BAS85,115), SOD-80 QuadroMELF (BAS285-GS08, BAS285-GS18), DO-213AA Glass Mini MELF (TMMBAT42FILM, TMMBAT43FILM), and SOD-323 (BAT165E6327HTSA1). Package selection depends on PCB footprint design and mechanical constraints. Verification of footprint compatibility is required before component selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance status identical to BAS85,135. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level rating and REACH Unaffected status.

Q: Which substitute part offers the lowest reverse leakage current?

A: TMMBAT42FILM and TMMBAT43FILM offer the lowest reverse leakage current at 500 nA @ 25 V, compared to 2.3 µA @ 25 V for BAS85,135. This characteristic may be beneficial in applications where leakage current minimization is a design requirement.

Q: What is the maximum operating junction temperature for each substitute part?

A: BAS85,135, BAS85,115, BAS285-GS08, and BAS285-GS18 are rated to 125°C maximum junction temperature. BAT165E6327HTSA1 is rated to 150°C maximum junction temperature. TMMBAT42FILM and TMMBAT43FILM operate across -65°C to 125°C junction temperature range.

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