S1GLHMHG Equivalent & Substitute Parts

Part Overview

The S1GLHMHG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and carries AEC-Q101 automotive qualification.

Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or when design flexibility is required across manufacturing batches. The S1GLHMHG maintains identical electrical and mechanical specifications across its substitute variants, enabling direct replacement within the specified parameter envelope.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5 @ 400 V	µA
Capacitance @ Vr, F	9 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 175	°C
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
AEC-Q101 Qualification	Yes	-

Substitute Part Grouping Explanation

Substitution of the S1GLHMHG is determined by equivalence across the following critical parameters:

Voltage Rating: 400 V DC reverse voltage (Vr) maximum
Current Rating: 1 A average rectified current (Io)
Forward Voltage: 1.1 V maximum at 1 A forward current
Reverse Recovery Time: 1.8 µs
Reverse Leakage Current: 5 µA at 400 V
Package Type: DO-219AB Sub SMA surface mount
Temperature Range: -55°C to 175°C junction operating temperature
Compliance: ROHS3 compliant, REACH unaffected

The substitute part S1GL maintains identical electrical characteristics and mechanical compatibility with the main part number S1GLHMHG. Packaging configuration differences (Tape & Reel versus standard packaging) do not affect functional equivalence for component-level substitution.

Parameter Comparison

Parameter	S1GLHMHG	S1GL	Match
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	✓
Current - Average Rectified (Io)	1 A	1 A	✓
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	✓
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	✓
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	✓
Capacitance @ Vr, F	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	✓
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	✓
Package / Case	DO-219AB	DO-219AB	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Product Status	Active	Not For New Designs	Different

Engineering Selection Recommendations

S1GLHMHG (Primary Selection)

The S1GLHMHG is the recommended part number for new designs and production applications. This part maintains Active product status with Taiwan Semiconductor Corporation, ensuring continued availability and manufacturing support. The component carries AEC-Q101 automotive qualification and ROHS3 compliance, meeting stringent reliability and environmental standards.

S1GL (Substitute Selection)

The S1GL is electrically and mechanically equivalent to the S1GLHMHG across all specified parameters. However, this part number carries Not For New Designs status, indicating it is reserved for legacy system support, maintenance applications, or inventory management scenarios where the primary part is unavailable. The S1GL is supplied in Tape & Reel packaging format, suitable for automated assembly processes.

Selection between these parts should be based on product lifecycle stage: S1GLHMHG for new designs and ongoing production, S1GL for existing systems requiring component replacement or when primary inventory is exhausted.

Frequently Asked Questions (FAQ)

Q: Can S1GL be used as a direct replacement for S1GLHMHG in new designs?

A: S1GL carries Not For New Designs status. While electrically and mechanically equivalent, it is not recommended for new product development. Use S1GLHMHG for new designs to ensure long-term supply chain stability and manufacturer support.

Q: Are there any electrical performance differences between S1GLHMHG and S1GL?

A: No. Both parts share identical electrical specifications: 400 V reverse voltage rating, 1 A average rectified current, 1.1 V forward voltage at 1 A, 1.8 µs reverse recovery time, and 5 µA reverse leakage current at 400 V.

Q: What is the difference between the packaging formats?

A: S1GLHMHG is supplied in standard packaging configuration. S1GL is supplied in Tape & Reel (TR) format, which is optimized for high-volume automated assembly. Both use the DO-219AB Sub SMA package type and are functionally interchangeable at the component level.

Q: Do both parts meet automotive qualification requirements?

A: S1GLHMHG carries AEC-Q101 automotive qualification. S1GL specifications do not explicitly list AEC-Q101 qualification in the provided data. Verify automotive qualification requirements with the manufacturer before selecting S1GL for automotive applications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both S1GLHMHG and S1GL are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: What is the operating temperature range for both parts?

A: Both parts operate across a junction temperature range of -55°C to 175°C, supporting applications in extreme thermal environments.

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

A: Yes. Both parts use identical DO-219AB Sub SMA surface mount packages with matching pin configurations and footprints, enabling direct PCB-level substitution without layout modifications.

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