US1DHE3_A/I Equivalent & Substitute Parts

Part Overview

The US1DHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 200 V DC reverse voltage with 1 A average rectified current in a DO-214AC (SMA) package. The part is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance.

Equivalent and substitute parts are identified when electrical parameters, mechanical packaging, and operational characteristics align with the main part specifications. This reference provides direct component alternatives for procurement, design flexibility, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 1 A
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts are grouped into three categories based on electrical and mechanical compatibility with the US1DHE3_A/I:

Parametric Equivalents share identical electrical specifications: 200 V reverse voltage, 1 A average rectified current, 1 V forward voltage at 1 A, 50 ns reverse recovery time, 10 µA reverse leakage current, and DO-214AC (SMA) surface mount packaging. These parts are direct functional replacements with no derating required.

Manufacturer Recommended Alternatives meet the core electrical requirements (200 V, 1 A, DO-214AC package) but may exhibit variations in secondary parameters such as reverse recovery time (35 ns vs. 50 ns), reverse leakage current (5 µA vs. 10 µA), or operating temperature range. These parts are suitable for applications where the main part is unavailable.

Upgraded Current Rating Parts maintain 200 V reverse voltage and DO-214AC packaging but provide higher average rectified current (1.5 A or 2 A). These parts are suitable for applications requiring higher current capacity within the same voltage class and package.

Substitution eligibility is determined by:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Packaging Type	Temp Range [°C]	Product Status
US1DHE3_A/I	Vishay	200	1	1 @ 1	50	10 @ 200	DO-214AC	Tape & Reel	-55 to 150	Active
US1D-E3/5AT	Vishay	200	1	1 @ 1	50	10 @ 200	DO-214AC	Tape & Reel	-55 to 150	Active
US1D-E3/61T	Vishay	200	1	1 @ 1	50	10 @ 200	DO-214AC	Cut Tape	-55 to 150	Active
US1DHE3_A/H	Vishay	200	1	1 @ 1	50	10 @ 200	DO-214AC	Tape & Reel	-55 to 150	Active
EGF1D	onsemi	200	1	1 @ 1	50	10 @ 200	DO-214AC	Cut Tape & Digi-Reel	-65 to 175	Not For New Designs
ES1D	EVVO Semi	200	1	1 @ 1	35	5 @ 200	DO-214AC	Cut Tape & Digi-Reel	-55 to 150	Active
S1D	YAGEO	200	1	—	—	—	DO-214AC	Cut Tape & Digi-Reel	—	Active
STTH1R02A	STMicroelectronics	200	1.5	1 @ 1.5	30	3 @ 200	DO-214AC	Cut Tape & Digi-Reel	-55 to 175	Active
STTH2R02A	STMicroelectronics	200	2	1 @ 2	30	3 @ 200	DO-214AC	Cut Tape & Digi-Reel	-55 to 175	Active
ES1D-HF	Comchip Technology	200	1	1 @ 1	35	5 @ 200	DO-214AC	Tape & Reel	-55 to 150	Active

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred for 1:1 Replacement)

US1D-E3/5AT, US1D-E3/61T, and US1DHE3_A/H are direct electrical and mechanical equivalents to the US1DHE3_A/I. All three parts share identical voltage, current, forward voltage, and reverse recovery time specifications. Selection between these parts depends on packaging format availability: Tape & Reel (TR) for US1D-E3/5AT and US1DHE3_A/H, or Cut Tape (CT) for US1D-E3/61T. All are Active product status with ROHS3 compliance and AEC-Q101 automotive qualification (US1DHE3_A/H and US1DHE3_A/I only).

Manufacturer Recommended Alternatives (Secondary Choice)

ES1D (EVVO Semi) and ES1D-HF (Comchip Technology) meet core electrical requirements with improved reverse recovery time (35 ns vs. 50 ns) and lower reverse leakage current (5 µA vs. 10 µA). Both maintain 200 V reverse voltage, 1 A average rectified current, and DO-214AC packaging. ES1D is available in Cut Tape & Digi-Reel format with 140,400 units in stock. ES1D-HF is available in Tape & Reel format with 8,300 units in stock. Both are Active product status with ROHS3 compliance.

S1D (YAGEO) is an Active product with DO-214AC packaging and 200 V / 1 A rating. Limited parameter data is provided in the input; verification of electrical specifications is required before selection.

Upgraded Current Rating Parts (Higher Current Applications)

STTH1R02A (STMicroelectronics) provides 1.5 A average rectified current at 200 V reverse voltage with improved reverse recovery time (30 ns) and lower reverse leakage current (3 µA). Operating temperature range extends to 175°C maximum. This part is suitable for applications requiring higher current capacity within the same voltage class.

STTH2R02A (STMicroelectronics) provides 2 A average rectified current at 200 V reverse voltage with identical performance improvements (30 ns trr, 3 µA Ir). This part is suitable for applications requiring significantly higher current capacity. Both STMicroelectronics parts are Active product status with ROHS3 compliance and 116,664 units in stock for STTH2R02A.

Parts Not Recommended for New Designs

EGF1D (onsemi) meets electrical and packaging requirements but carries "Not For New Designs" product status. This part is available for legacy system support only.

Frequently Asked Questions (FAQ)

Q: Can US1D-E3/5AT be used as a direct replacement for US1DHE3_A/I?

A: Yes. US1D-E3/5AT is a parametric equivalent with identical voltage (200 V), current (1 A), forward voltage (1 V @ 1 A), reverse recovery time (50 ns), and reverse leakage current (10 µA) specifications. Both use DO-214AC (SMA) surface mount packaging. The primary difference is packaging format: US1D-E3/5AT is supplied in Tape & Reel format.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on cut sections of tape, suitable for lower-volume or manual assembly. Both formats use identical DO-214AC (SMA) component packages. Selection depends on assembly equipment and volume requirements.

Q: Can STTH1R02A or STTH2R02A be used in place of US1DHE3_A/I?

A: STTH1R02A and STTH2R02A are suitable for applications where higher current capacity is required. Both maintain 200 V reverse voltage and DO-214AC packaging. STTH1R02A provides 1.5 A (vs. 1 A) and STTH2R02A provides 2 A (vs. 1 A) average rectified current. These parts also offer improved reverse recovery time (30 ns vs. 50 ns) and lower reverse leakage current (3 µA vs. 10 µA). Use these parts only if the application circuit can accommodate the higher current rating without thermal or electrical stress.

Q: Are ES1D and ES1D-HF suitable replacements?

A: Yes. Both ES1D (EVVO Semi) and ES1D-HF (Comchip Technology) meet the core electrical requirements: 200 V reverse voltage, 1 A average rectified current, and DO-214AC packaging. Both offer improved reverse recovery time (35 ns vs. 50 ns) and lower reverse leakage current (5 µA vs. 10 µA). ES1D is available in Cut Tape & Digi-Reel format; ES1D-HF is available in Tape & Reel format. Both are Active product status with ROHS3 compliance.

Q: What does "Not For New Designs" mean for EGF1D?

A: "Not For New Designs" indicates that the manufacturer (onsemi) no longer recommends this part for new product development. EGF1D is available for legacy system support and repair only. For new designs, select from Active product status alternatives such as US1D-E3/5AT, US1D-E3/61T, US1DHE3_A/H, ES1D, or ES1D-HF.

Q: Does the US1DHE3_A/I have automotive qualification?

A: Yes. US1DHE3_A/I carries AEC-Q101 automotive qualification and Grade: Automotive designation. US1DHE3_A/H also carries AEC-Q101 qualification. Other substitute parts (US1D-E3/5AT, US1D-E3/61T, ES1D, ES1D-HF, STTH1R02A, STTH2R02A) do not list automotive qualification in the provided specifications. For automotive applications requiring AEC-Q101 compliance, use US1DHE3_A/I or US1DHE3_A/H.

Q: What is the significance of reverse recovery time (trr) differences?

A: Reverse recovery time is the interval required for a diode to stop conducting in the reverse direction after the forward current is removed. US1DHE3_A/I has 50 ns trr. ES1D and ES1D-HF have 35 ns trr. STTH1R02A and STTH2R02A have 30 ns trr. Lower trr values reduce switching losses and electromagnetic interference in high-frequency applications. Parts with lower trr are suitable for applications where the main part is unavailable, provided circuit design does not depend on the specific trr value of the original part.

Q: Is RoHS3 compliance consistent across all substitute parts?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, matching the US1DHE3_A/I specification. All parts also have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

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