SRAS830HMNG Equivalent & Substitute Parts

Part Overview

The SRAS830HMNG 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 designed for fast recovery applications with a maximum forward voltage of 550 mV at 8 A and operates across a junction temperature range of -55°C to 125°C. The device carries automotive-grade qualification under AEC-Q101 and maintains ROHS3 compliance.

Substitute parts become necessary when the primary component reaches end-of-life status, experiences supply constraints, or when application requirements demand enhanced electrical performance within compatible package and voltage specifications.

Substiute Parts

SRAS830HMNG

Taiwan Semiconductor CorporationIn Stock: 968SRAS830HMNG Datasheet

Current PartRFQ

NRVBB4030T4G

onsemiIn Stock: 1804NRVBB4030T4G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SRAS830HMNG 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
• Forward Voltage (Vf) (Max) @ If: 550 mV @ 8 A or lower
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Criteria:

• Current - Average Rectified (Io): Equal to or greater than 8 A
• Current - Reverse Leakage @ Vr: Equal to or less than specified maximum
• Operating Temperature - Junction: Range must encompass or exceed -55°C to 125°C
• RoHS Status: ROHS3 Compliant or equivalent environmental compliance

Substitute parts must maintain identical reverse voltage rating and package configuration to ensure direct mechanical and electrical compatibility. Current rating may exceed the original specification, provided all other electrical characteristics remain within acceptable limits.

Parameter Comparison

Engineering Selection Recommendations

SRAS830HMNG (Primary Selection)

The SRAS830HMNG remains the preferred component selection. This device maintains Active product status, ensuring continued availability and manufacturer support. The part carries automotive-grade AEC-Q101 qualification, appropriate for regulated applications. ROHS3 compliance and REACH unaffected status satisfy environmental and regulatory requirements.

NRVBB4030T4G (Substitute Selection)

The NRVBB4030T4G qualifies as an electrical and mechanical substitute based on matching reverse voltage (30 V), package configuration (TO-263AB D2PAK), technology (Schottky), and fast recovery speed characteristics. The substitute accommodates higher current capacity (40 A versus 8 A), providing design margin for applications requiring increased current handling.

However, the NRVBB4030T4G carries Obsolete product status, indicating discontinued manufacturing and limited future availability. The reverse leakage current specification (350 µA @ 30 V) exceeds the main part (100 µA @ 30 V), which may impact applications sensitive to leakage characteristics. Selection of this substitute is appropriate only when SRAS830HMNG supply is unavailable and application requirements tolerate the elevated leakage specification.

Both parts maintain ROHS3 compliance and identical forward voltage characteristics at their respective rated currents, supporting direct functional substitution within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can NRVBB4030T4G directly replace SRAS830HMNG in existing designs?

A: Mechanical and electrical substitution is supported. Both devices share identical 30 V reverse voltage rating, TO-263AB D2PAK package configuration, and fast recovery Schottky technology. The substitute accommodates higher current capacity without circuit modification. However, the elevated reverse leakage current (350 µA versus 100 µA) must be evaluated against application requirements.

Q: What are the key differences between these parts?

A: The primary differences are current rating (8 A versus 40 A), reverse leakage current (100 µA versus 350 µA), product status (Active versus Obsolete), and operating temperature range (-55°C to 125°C versus -65°C to 175°C). All other critical parameters, including voltage rating and package type, are identical.

Q: Is the higher current rating of NRVBB4030T4G a disadvantage?

A: No. Higher current capacity provides design margin and does not negatively impact applications designed for 8 A operation. The device will operate safely at reduced current levels.

Q: Why does NRVBB4030T4G have higher reverse leakage current?

A: Reverse leakage current is a characteristic of the specific die design and manufacturing process. The NRVBB4030T4G specification of 350 µA at 30 V is within acceptable limits for most applications but should be verified for designs with strict leakage requirements.

Q: Are both parts suitable for automotive applications?

A: SRAS830HMNG carries AEC-Q101 automotive qualification. NRVBB4030T4G does not specify automotive qualification in the provided parameters. Automotive application requirements must be verified against the substitute part's qualification status before selection.

Q: What is the significance of the Obsolete status for NRVBB4030T4G?

A: Obsolete status indicates the manufacturer has discontinued production. This affects long-term availability and supply chain reliability. SRAS830HMNG, with Active status, is the recommended selection for new designs and applications requiring sustained component availability.

Q: Can these parts be used interchangeably in PCB layouts?

A: Yes. Both parts use identical TO-263AB D2PAK package configuration with the same pinout and thermal tab orientation. PCB footprints and thermal management designs require no modification.