Equivalent & Substitute Parts for US1JHE3_A/I

Part Overview

The US1JHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standard. The device features fast recovery characteristics with a reverse recovery time of 75 nanoseconds, making it suitable for applications requiring efficient switching performance at moderate voltage and current levels.

Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility. Alternative sources and packaging configurations are available to support supply chain flexibility, design optimization, and manufacturing requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	1.7	V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	10	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the US1JHE3_A/I are classified into two primary categories based on electrical and mechanical compatibility:

Category 1: Parametric Equivalents (Vishay US1J Series) These parts maintain identical electrical specifications across all critical parameters: 600 V reverse voltage, 1 A average rectified current, 1.7 V forward voltage drop at 1 A, fast recovery speed classification (≤ 500ns), 75 ns reverse recovery time, and 10 pF capacitance. Differences exist only in packaging configuration (Tape & Reel versus Cut Tape & Digi-Reel) and manufacturing date codes. These parts are direct functional replacements with no circuit performance impact.

Category 2: Manufacturer Recommended Alternatives (Cross-Manufacturer) These parts satisfy the core electrical requirements of 600 V reverse voltage and 1 A average rectified current but exhibit variations in secondary electrical characteristics. Differences include forward voltage drop (ranging from 1.0 V to 1.3 V at 1 A), speed classification (Standard Recovery >500ns versus Fast Recovery ≤ 500ns), reverse recovery time (2 µs to 80 ns), reverse leakage current (1 µA to 10 µA), and capacitance specifications. These parts are functionally compatible for applications where the primary voltage and current ratings are the controlling design parameters.

Category 3: Higher Current Rating (STMicroelectronics STTH2L06A) This part exceeds the primary current specification at 2 A average rectified current while maintaining 600 V reverse voltage rating. This part is suitable for applications requiring higher current capacity within the same voltage class and package form factor.

Substitution logic is based strictly on the following key parameters:

Voltage - DC Reverse (Vr) Maximum: 600 V (mandatory match)
Current - Average Rectified (Io): 1 A minimum (equal or higher acceptable)
Package / Case: DO-214AC, SMA (mandatory match)
Mounting Type: Surface Mount (mandatory match)
RoHS Status: ROHS3 Compliant (mandatory match)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [ns]	Ir @ Vr [µA]	C @ Vr [pF]	Package	Packaging Type	Product Status	Grade
US1JHE3_A/I	Vishay	600	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	10 @ 600V	10 @ 4V, 1MHz	DO-214AC, SMA	Tape & Reel	Active	Automotive, AEC-Q101
US1J-E3/5AT	Vishay	600	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	10 @ 600V	10 @ 4V, 1MHz	DO-214AC, SMA	Cut Tape & Digi-Reel	Active	—
US1J-E3/61T	Vishay	600	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	10 @ 600V	10 @ 4V, 1MHz	DO-214AC, SMA	Cut Tape & Digi-Reel	Active	—
US1J-M3/61T	Vishay	600	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	10 @ 600V	10 @ 4V, 1MHz	DO-214AC, SMA	Tape & Reel	Active	—
US1JHE3_A/H	Vishay	600	1	1.7 @ 1A	Fast Recovery ≤ 500ns	75	10 @ 600V	10 @ 4V, 1MHz	DO-214AC, SMA	Tape & Reel	Active	Automotive, AEC-Q101
GF1J	onsemi	600	1	1.0 @ 1A	Standard Recovery >500ns	2000	5 @ 600V	15 @ 4V, 1MHz	DO-214AC, SMA	Tape & Reel	Not For New Designs	—
GS1J-LTP	Micro Commercial Co	600	1	1.0 @ 1A	Standard Recovery >500ns	—	10 @ 600V	15 @ 4V, 1MHz	DO-214AC, SMA	Tape & Reel	Active	—
MRA4005T1G	onsemi	600	1	1.1 @ 1A	Standard Recovery >500ns	—	10 @ 600V	—	DO-214AC, SMA	Tape & Reel	Not For New Designs	—
MRA4005T3G	onsemi	600	1	1.1 @ 1A	Standard Recovery >500ns	—	10 @ 600V	—	DO-214AC, SMA	Cut Tape & Digi-Reel	Not For New Designs	—
STTH1L06A	STMicroelectronics	600	1	1.3 @ 1A	Fast Recovery ≤ 500ns	80	1 @ 600V	—	DO-214AC, SMA	Cut Tape & Digi-Reel	Active	—
STTH2L06A	STMicroelectronics	600	2	1.3 @ 2A	Fast Recovery ≤ 500ns	85	2 @ 600V	—	DO-214AC, SMA	Cut Tape & Digi-Reel	Active	—

Engineering Selection Recommendations

Vishay US1J Series (US1J-E3/5AT, US1J-E3/61T, US1J-M3/61T, US1JHE3_A/H)

These parts are direct parametric equivalents to the US1JHE3_A/I with identical electrical performance. Selection among these variants is determined by packaging requirements and inventory availability. The US1JHE3_A/H variant carries automotive-grade qualification and AEC-Q101 certification matching the primary part. The US1J-E3/61T offers the highest inventory availability at 110,219 pieces. For applications requiring automotive qualification, US1JHE3_A/H is the preferred equivalent. For general industrial applications, any variant within this series provides equivalent performance.

STMicroelectronics STTH1L06A

This part maintains fast recovery speed classification (≤ 500ns) and active product status. The forward voltage drop is 1.3 V at 1 A, representing a 0.4 V increase compared to the US1JHE3_A/I. The reverse leakage current is significantly lower at 1 µA versus 10 µA. This part is suitable for applications where lower leakage current is beneficial and the higher forward voltage drop is acceptable within circuit design margins. The maximum junction temperature rating is 175°C.

onsemi GF1J and MRA4005 Series (MRA4005T1G, MRA4005T3G)

These parts carry "Not For New Designs" product status and are suitable only for legacy system support or replacement applications. The GF1J exhibits standard recovery characteristics (>500ns) with 2 µs reverse recovery time, representing significantly slower switching performance than the primary part. The MRA4005 series also exhibits standard recovery characteristics. These parts are not recommended for new circuit designs.

Micro Commercial Co GS1J-LTP

This part maintains active product status with standard recovery characteristics (>500ns). The forward voltage drop is 1.0 V at 1 A, representing a 0.7 V reduction compared to the US1JHE3_A/I. This part is suitable for applications where lower forward voltage drop is a design requirement and standard recovery speed is acceptable.

STMicroelectronics STTH2L06A

This part exceeds the primary current specification at 2 A average rectified current while maintaining 600 V reverse voltage and fast recovery characteristics. This part is suitable for applications requiring higher current capacity within the same voltage class and package form factor. The forward voltage drop is specified at 1.3 V @ 2 A. This part is not a direct substitute but rather an upgrade option for higher current applications.

Frequently Asked Questions (FAQ)

Q: Can I use US1J-E3/61T as a direct replacement for US1JHE3_A/I?

A: Yes. The US1J-E3/61T is a parametric equivalent with identical electrical specifications: 600 V reverse voltage, 1 A average rectified current, 1.7 V forward voltage drop at 1 A, fast recovery speed (≤ 500ns), and 75 ns reverse recovery time. The only difference is packaging configuration (Cut Tape & Digi-Reel versus Tape & Reel). Both parts are housed in DO-214AC (SMA) surface mount packages and are functionally interchangeable.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes have reverse recovery time ≤ 500 nanoseconds, while standard recovery diodes exceed 500 nanoseconds. The US1JHE3_A/I features fast recovery at 75 ns. Standard recovery alternatives such as GF1J (2000 ns) and GS1J-LTP exhibit slower switching characteristics. Fast recovery diodes are preferred in high-frequency switching applications where reduced switching losses are critical.

Q: Can I substitute STTH1L06A for US1JHE3_A/I in my circuit?

A: STTH1L06A is functionally compatible for applications where the primary design parameters are 600 V reverse voltage and 1 A average rectified current. However, the forward voltage drop increases from 1.7 V to 1.3 V at 1 A, and reverse leakage current decreases from 10 µA to 1 µA. These differences may affect circuit performance in applications sensitive to forward voltage drop or leakage current. Verify that these parameter variations are acceptable within your circuit design margins.

Q: Why is the GF1J marked "Not For New Designs"?

A: The GF1J carries "Not For New Designs" product status, indicating that the manufacturer has discontinued active development and recommends against use in new circuit designs. This part is available only for legacy system support and replacement applications. For new designs, select from parts with "Active" product status such as US1JHE3_A/I, STTH1L06A, or GS1J-LTP.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Both packaging types contain the same electronic component in DO-214AC (SMA) surface mount package. Tape & Reel packaging supplies components on continuous tape suitable for high-volume automated assembly. Cut Tape & Digi-Reel packaging supplies components on cut tape segments suitable for lower-volume applications or manual assembly. Selection depends on manufacturing process requirements and volume specifications.

Q: Can I use STTH2L06A (2 A rated) instead of US1JHE3_A/I (1 A rated)?

A: STTH2L06A is suitable for applications requiring higher current capacity. The 2 A rating provides additional current margin compared to the 1 A specification of US1JHE3_A/I. However, this part is not a direct substitute but rather an upgrade option. Verify that the higher forward voltage drop (1.3 V @ 2 A) and different reverse recovery time (85 ns) are acceptable within your circuit design. The DO-214AC (SMA) package form factor remains identical.

Q: Is US1JHE3_A/H suitable for automotive applications?

A: Yes. US1JHE3_A/H carries automotive-grade qualification and AEC-Q101 certification, matching the primary part US1JHE3_A/I. Both parts are suitable for automotive applications requiring AEC-Q101 qualified components. The electrical specifications are identical, and both are housed in DO-214AC (SMA) surface mount packages.

Q: What does RoHS3 Compliant status mean?

A: RoHS3 Compliance indicates that the component meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials including lead, cadmium, mercury, hexavalent chromium, and certain brominated flame retardants. All listed substitute parts carry ROHS3 Compliant status, ensuring environmental and regulatory compliance.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All listed substitute parts meet the core electrical specifications of 600 V reverse voltage and 1 A average rectified current in DO-214AC (SMA) surface mount packages. However, verify that secondary electrical parameter variations (forward voltage drop, reverse recovery time, leakage current) are acceptable within your circuit design. For critical applications, maintain consistent sourcing from a single manufacturer to ensure uniform performance characteristics across production batches.

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