HS2AA R3G Equivalent & Substitute Parts

Part Overview

The HS2AA R3G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 1.5 A average rectified current in a surface mount DO-214AC (SMA) package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

The HS2AA R3G features fast recovery characteristics with a reverse recovery time of 50 ns, forward voltage of 1 V at 1.5 A, and operates across a junction temperature range of -55°C to 150°C. The component is RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1.5 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	µA
Capacitance @ Vr, F	50pF @ 4V, 1MHz	pF
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the HS2AA R3G are grouped based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 50 V
Package / Case: DO-214AC, SMA (surface mount)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Current Rating Considerations: The HS2AA R3G is rated for 1.5 A average rectified current. Substitute parts are categorized into two groups:

Direct Parametric Equivalents (1.5 A rating): Parts with identical 1.5 A current rating maintain full electrical compatibility without derating.
Similar Parts (1 A rating): Parts rated for 1 A average rectified current operate at reduced current capacity. These substitutes are suitable for applications where the circuit current requirement does not exceed 1 A.

Recovery Speed Considerations: The HS2AA R3G features fast recovery characteristics (≤ 500ns). Substitute parts are available in both fast recovery (≤ 500ns) and standard recovery (> 500ns) variants. Fast recovery variants maintain identical switching performance; standard recovery variants exhibit slower reverse recovery characteristics.

Forward Voltage Variations: Forward voltage specifications range from 920 mV to 1.1 V at rated current. These variations are within acceptable tolerance for general-purpose rectification applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [ns]	Package	Tj Range [°C]	Product Status
HS2AA R3G	Taiwan Semiconductor Corporation	50	1.5	1 @ 1.5 A	Fast Recovery ≤ 500ns	50	DO-214AC, SMA	-55 to 150	Discontinued
HS2AA	Taiwan Semiconductor Corporation	50	1.5	1 @ 1.5 A	Fast Recovery ≤ 500ns	50	DO-214AC, SMA	-55 to 150	Active
CGRA4001-G	Comchip Technology	50	1	1.1 @ 1 A	Standard Recovery > 500ns	—	DO-214AC, SMA	-55 to 150	Active
ES1A-13-F	Diodes Incorporated	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 150	Active
ES1A-E3/5AT	Vishay General Semiconductor - Diodes Division	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 155	Active
ES1A-M3/5AT	Vishay General Semiconductor - Diodes Division	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 150	Active
ES1A-M3/61T	Vishay General Semiconductor - Diodes Division	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 150	Active
ES1AHE3_A/H	Vishay General Semiconductor - Diodes Division	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 150	Active
ES1AHE3_A/I	Vishay General Semiconductor - Diodes Division	50	1	920 mV @ 1 A	Fast Recovery ≤ 500ns	25	DO-214AC, SMA	-55 to 150	Active
GS2A-LTP	Micro Commercial Co	50	2	1.1 @ 2 A	Standard Recovery > 500ns	—	DO-214AC, SMA	-55 to 150	Active
RS1A-13-F	Diodes Incorporated	50	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-214AC, SMA	-65 to 150	Active

Engineering Selection Recommendations

Direct Parametric Equivalent:

The HS2AA (Tape & Reel packaging) is the direct parametric equivalent to the HS2AA R3G. This part maintains identical electrical specifications including 1.5 A current rating, 50 V reverse voltage, 50 ns reverse recovery time, and 1 V forward voltage at 1.5 A. The HS2AA is currently active in production and available in Tape & Reel packaging. This part is the primary replacement for the discontinued HS2AA R3G.

Active Substitute Parts (1 A Rating):

The following parts are active in production and suitable for applications where circuit current does not exceed 1 A:

ES1A-13-F (Diodes Incorporated): Fast recovery diode with 25 ns reverse recovery time and 920 mV forward voltage at 1 A. High inventory availability (70,300 pcs).
ES1A-E3/5AT (Vishay General Semiconductor - Diodes Division): Fast recovery diode with 25 ns reverse recovery time, 920 mV forward voltage at 1 A, and extended junction temperature range to 155°C. Active production status.
ES1A-M3/5AT (Vishay General Semiconductor - Diodes Division): Fast recovery diode with 25 ns reverse recovery time and 920 mV forward voltage at 1 A. Active production status.
ES1A-M3/61T (Vishay General Semiconductor - Diodes Division): Fast recovery diode with 25 ns reverse recovery time and 920 mV forward voltage at 1 A. Highest inventory availability among 1 A variants (12,650 pcs).
ES1AHE3_A/H and ES1AHE3_A/I (Vishay General Semiconductor - Diodes Division): Automotive-grade fast recovery diodes with AEC-Q101 qualification, 25 ns reverse recovery time, and 920 mV forward voltage at 1 A.
RS1A-13-F (Diodes Incorporated): Fast recovery diode with 150 ns reverse recovery time, 1.3 V forward voltage at 1 A, and extended junction temperature range to -65°C.

Standard Recovery Alternatives (1 A and 2 A Ratings):

CGRA4001-G (Comchip Technology): Standard recovery diode rated for 1 A with 1.1 V forward voltage. Suitable for applications where fast recovery is not required.
GS2A-LTP (Micro Commercial Co): Standard recovery diode rated for 2 A with 1.1 V forward voltage. Provides higher current capacity for applications exceeding 1.5 A requirements.

All substitute parts maintain 50 V reverse voltage rating, DO-214AC (SMA) package compatibility, surface mount mounting type, RoHS3 compliance, and MSL 1 moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can I use a 1 A rated diode as a direct replacement for the HS2AA R3G (1.5 A rated)?

A: A 1 A rated diode can be used only if the circuit current requirement does not exceed 1 A. The HS2AA R3G is rated for 1.5 A average rectified current. Using a lower-rated part in a circuit designed for 1.5 A operation will result in component overstress and potential failure. Verify circuit current requirements before selecting a 1 A substitute.

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

A: Fast recovery diodes have reverse recovery times of 500 ns or less, while standard recovery diodes exceed 500 ns. Fast recovery diodes switch more quickly, reducing switching losses and electromagnetic interference. Standard recovery diodes are suitable for lower-frequency applications where switching speed is not critical. The HS2AA R3G is a fast recovery device with 50 ns reverse recovery time.

Q: Are all substitute parts available in the same packaging as the HS2AA R3G?

A: All listed substitute parts use the DO-214AC (SMA) surface mount package, which is mechanically and electrically compatible with the HS2AA R3G. Packaging variants (Cut Tape vs. Tape & Reel) do not affect electrical performance or PCB mounting compatibility.

Q: What is the significance of the forward voltage (Vf) difference between the HS2AA R3G (1 V) and substitute parts (920 mV to 1.3 V)?

A: Forward voltage variations of this magnitude (80 mV to 300 mV) are typical across different manufacturers and technologies. These differences affect power dissipation and voltage drop across the diode during conduction. For general-purpose rectification, these variations are acceptable. For precision applications with tight voltage regulation requirements, verify that the substitute part's forward voltage is compatible with circuit design specifications.

Q: Can I use the GS2A-LTP (2 A rated) as a substitute for the HS2AA R3G (1.5 A rated)?

A: The GS2A-LTP has a higher current rating (2 A) and is electrically compatible with the HS2AA R3G in terms of voltage rating (50 V) and package (DO-214AC, SMA). However, the GS2A-LTP uses standard recovery technology (> 500ns) compared to the HS2AA R3G's fast recovery (50 ns). This difference affects switching performance. The GS2A-LTP is suitable for applications where fast recovery is not required and higher current capacity is beneficial.

Q: Are automotive-grade variants (ES1AHE3_A/H and ES1AHE3_A/I) compatible with non-automotive applications?

A: Automotive-grade parts with AEC-Q101 qualification meet stringent reliability and quality standards that exceed standard industrial requirements. These parts are fully compatible with non-automotive applications and provide enhanced reliability. Automotive-grade parts can be used as direct substitutes in any application requiring the same electrical specifications.

Q: What is the impact of junction temperature range differences on part selection?

A: The HS2AA R3G operates from -55°C to 150°C. Most substitute parts maintain this range. The ES1A-E3/5AT extends to 155°C, and the RS1A-13-F extends to -65°C. These differences are significant only if the application operates at temperature extremes. For standard industrial temperature ranges (-40°C to 85°C), all listed parts are compatible.

Q: Why is the HS2AA R3G discontinued while the HS2AA (Tape & Reel) remains active?

A: The HS2AA R3G (Cut Tape packaging) is discontinued, but the HS2AA in Tape & Reel packaging remains in active production. This reflects market demand for bulk packaging formats. The HS2AA in Tape & Reel is the direct replacement for the discontinued HS2AA R3G, with identical electrical specifications and full compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message