S2MB-HF Equivalent & Substitute Parts

Part Overview

The S2MB-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 1000 V DC reverse voltage and 2 A average rectified current in a surface mount SMB/DO-214AA package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

S2MB-HF

Comchip TechnologyIn Stock: 911S2MB-HF Datasheet

Current PartRFQ

ACGRB207-HF

Comchip TechnologyIn Stock: 1174ACGRB207-HF Datasheet

Parametric EquivalentRFQ

S2M

MDDIn Stock: 326010S2M Datasheet

Parametric EquivalentRFQ

S2M_R1_00001

Panjit International Inc.In Stock: 2431S2M_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2MB-HF are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 1000 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max): ≤ 1.15 V
• Operating Temperature - Junction: -55°C to 150°C
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Package Compatibility:

• DO-214AA/SMB package (primary equivalents)
• SOD-214AC/SMA package (mechanical alternative with same electrical ratings)

All substitute parts listed maintain identical or superior reverse voltage, rectified current capacity, and thermal operating range. Forward voltage specifications remain within acceptable engineering tolerances for general-purpose rectification applications.

Parameter Comparison

Engineering Selection Recommendations

ACGRB207-HF (Comchip Technology): This part is a direct parametric equivalent with identical reverse voltage and rectified current ratings. It features automotive-grade qualification (AEC-Q101) and lower capacitance (10 pF vs. 25 pF), making it suitable for applications requiring reduced parasitic effects. Both parts share the same manufacturer and DO-214AA/SMB package footprint. Product status is Active with ROHS3 compliance.

S2M_R1_00001 (Panjit International Inc.): This substitute maintains identical electrical specifications with superior reverse leakage characteristics (1 µA vs. 5 µA). It is packaged in DO-214AA/SMB format with identical thermal range and RoHS3 compliance. Product status is Active. This part is suitable for direct footprint replacement.

S2M (MDD): This part provides equivalent electrical performance with a different package format (SOD-214AC/SMA instead of DO-214AA/SMB). Forward voltage is slightly higher at 1.15 V but remains within acceptable tolerance. This substitute requires PCB layout modification due to package differences. Product status is Active with ROHS3 compliance and REACH Unaffected status.

All substitute parts maintain Active product status and full RoHS3 compliance, ensuring long-term availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can ACGRB207-HF replace S2MB-HF in existing designs?

A: Yes. ACGRB207-HF is a parametric equivalent with identical reverse voltage (1000 V), rectified current (2 A), and forward voltage (1.1 V @ 2-3 A). Both use the DO-214AA/SMB package and share identical thermal operating range (-55°C to 150°C). No PCB layout changes are required.

Q: What is the difference between S2M_R1_00001 and the original S2MB-HF?

A: S2M_R1_00001 is manufactured by Panjit International Inc. instead of Comchip Technology but maintains identical electrical ratings. The key advantage is lower reverse leakage current (1 µA vs. 5 µA @ 1000 V). Both parts use the DO-214AA/SMB package and are pin-compatible.

Q: Why is S2M listed as a substitute if it uses a different package?

A: S2M uses the SOD-214AC/SMA package instead of DO-214AA/SMB. While electrically equivalent, this substitute requires PCB footprint modification. It is listed for applications where package change is acceptable and provides design flexibility across different board layouts.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitutes (ACGRB207-HF, S2M_R1_00001, and S2M) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original S2MB-HF specifications.

Q: What is the primary criterion for substitution?

A: The primary criterion is matching reverse voltage (1000 V) and rectified current (2 A) ratings with forward voltage within 1.1-1.15 V range. All substitutes meet these core electrical parameters and operate across the identical temperature range (-55°C to 150°C).

Q: Can I use ACGRB207-HF in automotive applications?

A: ACGRB207-HF carries AEC-Q101 automotive qualification, making it suitable for automotive-grade applications. The original S2MB-HF does not specify automotive qualification, so ACGRB207-HF may be preferred for automotive designs requiring certified components.

Q: What is the inventory status of substitute parts?

A: ACGRB207-HF has 1138 pcs in stock, S2M_R1_00001 has 2364 pcs in stock, and S2M has 325963 pcs in stock. The original S2MB-HF has 809 pcs in stock.