S1JMH Equivalent & Substitute Parts

Part Overview

The S1JMH is a 1A, 600V standard recovery rectifier diode manufactured by Taiwan Semiconductor Corporation. This surface mount component is designed for general-purpose rectification applications and is packaged in Micro SMA format. The part maintains Active product status with full AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical performance parameters and compatible mechanical specifications to ensure direct functional replacement in circuit designs.

Substiute Parts

S1JMH

Taiwan Semiconductor CorporationIn Stock: 12688S1JMH Datasheet

Current PartRFQ

S1JM RSG

Taiwan Semiconductor CorporationIn Stock: 161136S1JM RSG Datasheet

Parametric EquivalentRFQ

NRVS1JHE

onsemiIn Stock: 2497NRVS1JHE Datasheet

Parametric EquivalentRFQ

S1JHE

onsemiIn Stock: 32986S1JHE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S1JMH are identified through parametric equivalence across critical electrical specifications. The primary substitution criteria are:

Electrical Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Reverse Recovery Time (trr): 780 ns or equivalent
• Current - Reverse Leakage @ Vr: 1 µA @ 600 V

Mechanical Compatibility Parameters:

• Mounting Type: Surface Mount
• Package / Case: 2-SMD, Flat Lead
• Operating Temperature - Junction: -55°C to 175°C

Parts are grouped as direct parametric equivalents when all electrical specifications match within the defined tolerances and mechanical packaging remains compatible. Substitute parts may utilize different supplier device packages (Micro SMA versus SOD-323HE) provided the 2-SMD flat lead configuration is maintained and electrical performance is identical.

Parameter Comparison

Engineering Selection Recommendations

S1JM RSG (Taiwan Semiconductor Corporation): This part is a direct parametric equivalent to the S1JMH with identical electrical specifications and Micro SMA packaging. Both parts are manufactured by Taiwan Semiconductor Corporation and maintain Active product status. S1JM RSG is suitable for applications requiring equivalent performance with higher inventory availability.

NRVS1JHE (onsemi): This part meets all electrical specifications with a reverse recovery time of 782 ns, which is within acceptable tolerance of the 780 ns specification. The part carries AEC-Q101 automotive qualification and ROHS3 compliance. However, NRVS1JHE is designated as Not For New Designs, limiting its application to legacy system support or maintenance scenarios only. The SOD-323HE package format differs from the Micro SMA but maintains 2-SMD flat lead mechanical compatibility.

S1JHE (onsemi): This part is a direct parametric equivalent with identical electrical performance and Active product status. S1JHE utilizes SOD-323HE packaging instead of Micro SMA but maintains full 2-SMD flat lead compatibility. The part carries AEC-Q101 automotive qualification and ROHS3 compliance. S1JHE is suitable for new designs and provides an alternative sourcing option from onsemi with higher inventory availability.

Frequently Asked Questions (FAQ)

Q: Can S1JM RSG be used as a direct replacement for S1JMH?

A: Yes. S1JM RSG is a parametric equivalent with identical voltage, current, forward voltage, reverse recovery time, and leakage specifications. Both parts use Micro SMA packaging and maintain the same operating temperature range. The parts are functionally interchangeable.

Q: What is the difference between Micro SMA and SOD-323HE packages?

A: Both Micro SMA and SOD-323HE are 2-SMD flat lead surface mount packages with compatible mechanical footprints. The primary difference is the supplier device package designation. Both formats support the same electrical specifications and mounting requirements for this 1A, 600V rectifier diode application.

Q: Why is NRVS1JHE marked as Not For New Designs?

A: NRVS1JHE carries a Not For New Designs product status designation from onsemi. This part remains available for existing applications and legacy system support but should not be selected for new circuit designs. For new designs, S1JHE or S1JM RSG are recommended alternatives.

Q: Are all substitute parts AEC-Q101 qualified?

A: S1JMH, NRVS1JHE, and S1JHE all carry AEC-Q101 automotive qualification. S1JM RSG does not specify AEC-Q101 qualification in the provided parameters. For automotive applications requiring AEC-Q101 certification, S1JHE or NRVS1JHE are appropriate selections.

Q: What is the significance of the capacitance difference between parts?

A: S1JMH and S1JM RSG specify 5 pF capacitance at 4V, 1MHz, while NRVS1JHE and S1JHE specify 3 pF at the same conditions. Both values are within acceptable ranges for standard recovery rectifier diodes. The lower capacitance in onsemi parts may provide marginal benefits in high-frequency switching applications, but both specifications support the same electrical performance class.

Q: Can these parts be used interchangeably in existing PCB designs?

A: S1JM RSG is a direct mechanical and electrical replacement for S1JMH, both using Micro SMA packaging. S1JHE and NRVS1JHE use SOD-323HE packaging, which has a different physical footprint. PCB layout compatibility must be verified before substituting between Micro SMA and SOD-323HE packages, even though both are 2-SMD flat lead configurations.

Q: What inventory considerations apply to these substitutes?

A: S1JM RSG offers significantly higher inventory (161,107 pcs) compared to S1JMH (12,659 pcs). S1JHE provides the highest inventory availability (32,885 pcs) among onsemi alternatives. NRVS1JHE has limited inventory (2,445 pcs) and Not For New Designs status, making it unsuitable for new procurement.