SRAS830 MNG Schottky Diode Equivalent & Substitute Parts

Part Overview

The SRAS830 MNG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30 V DC reverse voltage and 8 A average rectified current in a surface mount TO-263AB (D2PAK) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter tolerances. Substitution analysis is based strictly on matching voltage ratings, current capacity, package type, and thermal operating range.

Substiute Parts

SRAS830 MNG

Taiwan Semiconductor CorporationIn Stock: 1108SRAS830 MNG Datasheet

Current PartRFQ

NRVBB4030T4G

onsemiIn Stock: 1804NRVBB4030T4G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SRAS830 MNG is determined by the following critical parameters:

Mandatory Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
• Technology: Schottky
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Allowable Variation Criteria:

• Current - Average Rectified (Io): Equal to or greater than 8 A
• Voltage - Forward (Vf) (Max) @ If: Equal to or less than 550 mV
• Operating Temperature - Junction: Equal to or greater than the specified range
• Current - Reverse Leakage @ Vr: Equal to or less than 100 µA @ 30 V

Substitute parts must maintain identical reverse voltage rating and package configuration to ensure direct mechanical and electrical compatibility. Current capacity may exceed the original specification without functional degradation. Forward voltage and reverse leakage characteristics must remain within acceptable limits to preserve circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: SRAS830 MNG

The SRAS830 MNG maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). This component is recommended for new designs and applications requiring long-term supply chain stability and manufacturer support.

Substitute Selection: NRVBB4030T4G

The NRVBB4030T4G (onsemi SWITCHMODE™ series) provides electrical and mechanical compatibility with the SRAS830 MNG through matching reverse voltage rating, package configuration, and fast recovery speed characteristics. The substitute part exhibits higher current capacity (40 A versus 8 A), extended operating temperature range (-65 to 175°C versus -55 to 125°C), and RoHS3 compliance.

Substitution Limitations:

The NRVBB4030T4G carries Obsolete product status, indicating discontinued manufacturing and limited availability. Reverse leakage current specification (350 µA @ 30 V) exceeds the SRAS830 MNG rating (100 µA @ 30 V) by 3.5 times. This elevated leakage characteristic may impact circuit performance in applications with stringent standby current or low-power requirements. Forward voltage characteristics remain equivalent at respective rated currents.

Compliance Considerations:

Both components maintain ROHS3 compliance and REACH Unaffected status. Moisture sensitivity level (MSL 1) is identical, permitting equivalent handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the NRVBB4030T4G directly replace the SRAS830 MNG in existing designs?

A: Mechanical and electrical compatibility exists through matching 30 V reverse voltage rating and TO-263AB (D2PAK) package configuration. However, the substitute part exhibits 3.5 times higher reverse leakage current (350 µA versus 100 µA @ 30 V). Circuit designs sensitive to standby current or leakage-dependent performance require evaluation before substitution.

Q: What is the significance of the higher current rating (40 A) in the NRVBB4030T4G?

A: The 40 A average rectified current specification in the substitute part exceeds the 8 A requirement of the SRAS830 MNG. This parameter represents maximum safe operating current and does not require derating when used in 8 A applications. Higher current capacity provides design margin without functional impact.

Q: Why is the NRVBB4030T4G listed as Obsolete?

A: Obsolete product status indicates the manufacturer (onsemi) has discontinued production and support for this component. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. The SRAS830 MNG (Active status) is recommended for new designs requiring sustained component availability.

Q: Are the forward voltage characteristics compatible between these parts?

A: Both components specify 550 mV maximum forward voltage at their respective rated currents (8 A for SRAS830 MNG, 40 A for NRVBB4030T4G). Forward voltage performance is equivalent within the operating range of the SRAS830 MNG application.

Q: What is the impact of the extended operating temperature range in the NRVBB4030T4G?

A: The substitute part operates from -65 to 175°C compared to -55 to 125°C for the SRAS830 MNG. This extended range provides additional thermal margin but does not affect compatibility in applications operating within the SRAS830 MNG temperature specification.

Q: Are both components suitable for high-frequency switching applications?

A: Both components feature fast recovery speed characteristics (≤ 500ns, > 200mA Io), confirming suitability for switching applications. Recovery speed performance is identical between the SRAS830 MNG and NRVBB4030T4G.

Q: What packaging considerations apply to these Schottky diodes?

A: Both components utilize the TO-263-3 (D2PAK) surface mount package with 2 leads plus tab configuration. Identical package geometry permits direct PCB footprint compatibility without layout modifications.

Q: How do RoHS and REACH compliance statuses compare?

A: Both the SRAS830 MNG and NRVBB4030T4G maintain ROHS3 compliance and REACH Unaffected status. Regulatory compliance is equivalent, and both components satisfy environmental and hazardous substance restrictions.