S1GHM3_A/I Equivalent & Substitute Parts Reference

Part Overview

The Vishay S1GHM3_A/I is a surface-mount general-purpose rectifier diode in the DO-214AC (SMA) package. It features a 400 V maximum DC reverse voltage, 1A average rectified current, standard recovery speed (>500ns), and automotive AEC-Q101 qualification. The product is active and compliant with ROHS3 and REACH. Alternate or substitute models may be required due to factors such as lifecycle status changes, sourcing, automotive qualification, or packaging preferences within the category of rectifier diodes.

Key Parameters

Parameter	Value
Manufacturer Part Number	S1GHM3_A/I
Category	Diodes, Rectifiers
Mounting Type	Surface Mount
Package / Case	DO-214AC (SMA)
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	1A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1A
Speed	Standard Recovery >500ns, >200mA (Io)
Reverse Recovery Time (trr)	1.8 µs
Current - Reverse Leakage @ Vr	1 µA @ 400 V
Capacitance @ Vr, F	12pF @ 4V, 1MHz
Operating Temperature - Junction	-55°C ~ 150°C
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute rectifier diodes are selected strictly based on equivalence in these key parameters:

Maximum DC reverse voltage (Vr)
Average rectified current (Io)
Forward voltage (Vf) at specified current
Reverse recovery time (trr)
Mounting type and DO-214AC (SMA) package compatibility
Compliance (ROHS, REACH, AEC-Q101 where relevant) Parts listed below match or align to these parameters as provided. Substitutes are presented based on parameterized or detailed equivalency, automotive grade, and recognized supplier packaging.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Package / Case	Mounting Type	Vr (Max)	Io (Avg)	Vf (Max) @ 1A	Speed	Reverse Recovery Time (trr)	Reverse Leakage @ Vr	Capacitance @ Vr, F	Operating Temperature - Junction	Grade	Qualification	RoHS	MSL	REACH	Status
S1GHM3_A/I	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.8 µs	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	Automotive	AEC-Q101	ROHS3	1	REACH Unaffected	Active
CS1G-E3/I	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.5 µs	5 µA @ 400 V	6pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Obsolete
S1G-E3/5AT	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.8 µs	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Active
S1G-E3/61T	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.8 µs	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Active
S1GHE3_A/H	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.8 µs	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	Automotive	AEC-Q101	ROHS3	1	REACH Unaffected	Active
S1GHE3_A/I	Vishay General Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.8 µs	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	Automotive	AEC-Q101	ROHS3	1	REACH Unaffected	Active
ES1G	Good-Ark Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.3 V	Fast Recovery ≤500ns	35 ns	5 µA @ 400 V	8pF @ 4V, 1MHz	-55°C ~ 125°C	-	-	ROHS3	1	REACH Unaffected	Active
ACGRA4004-HF	Comchip Technology	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	2.5 µs	5 µA @ 400 V	2.5pF @ 4V, 1MHz	-55°C ~ 150°C	Automotive	AEC-Q101	ROHS3	1	REACH Unaffected	Active
AS1G-HF	Comchip Technology	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	5 µA @ 400 V	-	-55°C ~ 150°C	Automotive	AEC-Q101	ROHS3	1	-	Active
CGRA4004-G	Comchip Technology	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	5 µA @ 400 V	-	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Active
GS1GE-TP	Micro Commercial Co	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	5 µA @ 400 V	15pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Not For New Designs
GS1GWG_R1_00001	Panjit International Inc.	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	1 µA @ 400 V	7pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Not For New Designs
GS1G_R1_00001	Panjit International Inc.	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	1 µA @ 400 V	12pF @ 4V, 1MHz	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Active
S1G	Diotec Semiconductor	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	1.5 µs	1 µA @ 400 V	-	-50°C ~ 150°C	-	-	ROHS3	1	-	Active
S1G-HF	Comchip Technology	DO-214AC (SMA)	Surface Mount	400 V	1A	1.1 V	Standard Recovery >500ns	-	5 µA @ 1700 V	-	-55°C ~ 150°C	-	-	ROHS3	1	REACH Unaffected	Active

Engineering Selection Recommendations

Selection among substitute diodes must consider product status (Active, Not for New Designs, or Obsolete), RoHS3 and REACH compliance, and AEC-Q101 automotive qualification for automotive-grade requirements. Only substitutes that match the compliance and qualification of S1GHM3_A/I are suitable for automotive-grade applications. For applications outside automotive requirements, parameter and compliance equivalence guides selection. For discontinued (Obsolete) parts, only use if existing inventory is sufficient. Not for New Designs parts should not be specified for new product introductions.

Frequently Asked Questions (FAQ)

Q1: What are the key parameters for rectifier diode substitution in this category?
A1: Electrical and mechanical equivalence is determined by reverse voltage (Vr), forward current (Io), forward voltage (Vf) at specified current, reverse recovery time (trr), reverse leakage current, recovery speed, mounting type, and package (DO-214AC/SMA). Compliance and qualification (e.g., ROHS3, REACH, automotive grade) are essential for specific industries.

Q2: Are all substitute parts fully mechanically and electrically interchangeable?
A2: Substitute parts listed share the surface mount DO-214AC (SMA) package and key electrical ratings within the provided parameters.

Q3: How does AEC-Q101 qualification affect selection?
A3: AEC-Q101 qualification is required for automotive applications. Only parts with explicit AEC-Q101 qualification can directly substitute S1GHM3_A/I in such environments.

Q4: Can a rectifier with a different recovery speed or reverse leakage be used?
A4: Substitutes must match or align in speed and maximum reverse leakage as specified. Deviations outside the provided parameters should not be selected as direct substitutes.

Q5: Are inactive or obsolete parts suitable for new designs?
A5: Obsolete or Not For New Designs parts should not be specified for new projects. Use only where existing inventory and lifecycle status permit continuation for legacy support.

Q6: What packaging and mounting factors must be considered?
A6: Only surface-mount parts in the DO-214AC (SMA) package can directly substitute without changes to PCB layout or assembly processes.

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