SB580 Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB580 is an 80V, 5A Schottky rectifier diode in DO-201AD axial through-hole packaging manufactured by onsemi. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The SB580 operates across a junction temperature range of -55°C to 150°C and is ROHS3 compliant. Substitute parts must maintain electrical compatibility within the specified voltage, current, and thermal parameters while accommodating modern active product availability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 5 A	mV @ A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500 µA @ 80 V	µA @ V
Mounting Type	Through Hole	—
Package / Case	DO-201AD, Axial	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SB580 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Technology: Schottky (all substitutes)
Mounting Type: Through Hole (all substitutes)
Package / Case: DO-201AD, Axial (all substitutes)
Current - Average Rectified (Io): 5A (all substitutes)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (all substitutes)
RoHS Status: ROHS3 Compliant (all substitutes)

Voltage Rating Consideration: Substitute parts are grouped by maximum reverse voltage (Vr). The SB580 operates at 80V maximum. Substitutes with equal or higher voltage ratings (80V, 90V, 100V) are electrically compatible in circuits designed for 80V operation. Forward voltage (Vf) and reverse leakage current remain within acceptable ranges across all substitutes.

Product Status: The SB580 is obsolete. All substitute parts listed are active products with current manufacturing status and available inventory.

Parameter Comparison

Parameter	SB580 (onsemi)	SB580E-G (Comchip)	SB5100E-G (Comchip)	SB5H90-E3/54 (Vishay)	SR510 (Taiwan Semi)
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	100 V	90 V	100 V
Current - Average Rectified (Io)	5 A	5 A	5 A	5 A	5 A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 5 A	850 mV @ 5 A	850 mV @ 5 A	800 mV @ 5 A	850 mV @ 5 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 80 V	500 µA @ 80 V	500 µA @ 100 V	200 µA @ 90 V	100 µA @ 100 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	175°C (Max)	-55°C ~ 150°C
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent (Identical Voltage Rating): The SB580E-G (Comchip Technology) is the direct equivalent to the SB580. Both parts share an 80V maximum reverse voltage rating, 5A average rectified current, and 850 mV forward voltage at 5A. The SB580E-G is an active product available in Tape & Reel packaging with extended temperature range (-65°C to 150°C) and ROHS3 compliance. This part provides pin-for-pin compatibility with identical electrical performance.

Higher Voltage Rating Substitutes: The SB5100E-G (Comchip Technology) and SR510 (Taiwan Semiconductor Corporation) both feature 100V maximum reverse voltage ratings. These parts are suitable for SB580 replacement in applications where the circuit design permits higher voltage tolerance. Both maintain 5A current rating, fast recovery characteristics, and ROHS3 compliance. The SB5100E-G is available in Cut Tape packaging; the SR510 is available in Tape & Reel packaging.

Intermediate Voltage Rating Substitute: The SB5H90-E3/54 (Vishay General Semiconductor - Diodes Division) provides a 90V maximum reverse voltage rating, positioning it between the original 80V specification and the 100V alternatives. This part features improved reverse leakage characteristics (200 µA @ 90V compared to 500 µA @ 80V in the original) and a lower forward voltage (800 mV @ 5A). Maximum junction temperature reaches 175°C. The SB5H90-E3/54 is available in Cut Tape packaging.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and REACH unaffected status. All are classified as active products with current manufacturing and available inventory. Selection should be based on circuit voltage tolerance, packaging requirements (Cut Tape or Tape & Reel), and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the SB580E-G directly replace the SB580 in existing designs? A: Yes. The SB580E-G is a direct equivalent with identical voltage (80V), current (5A), and forward voltage (850 mV @ 5A) specifications. Both use DO-201AD axial through-hole packaging. The primary difference is product status (active vs. obsolete) and extended temperature range on the SB580E-G (-65°C to 150°C vs. -55°C to 150°C).

Q: What is the difference between the 80V, 90V, and 100V rated substitutes? A: The voltage rating indicates the maximum reverse voltage the diode can withstand. The SB580 is rated for 80V maximum. Substitutes rated at 90V or 100V can operate in 80V circuits without exceeding their specifications. Higher voltage ratings provide additional safety margin but do not change forward voltage or current handling characteristics. Selection depends on circuit design requirements and available inventory.

Q: Are all substitute parts compatible with the same PCB footprint? A: Yes. All substitute parts use DO-201AD axial through-hole packaging with identical mechanical dimensions. PCB footprints designed for the SB580 accommodate all listed substitutes without modification.

Q: What is the significance of packaging type (Cut Tape vs. Tape & Reel)? A: Packaging type affects procurement and assembly processes. Cut Tape (CT) is suitable for manual assembly or small-volume production. Tape & Reel (TR) is optimized for automated assembly equipment. Electrical performance is identical; selection depends on manufacturing process requirements.

Q: Does the SB5H90-E3/54 offer advantages over other substitutes? A: The SB5H90-E3/54 features lower reverse leakage current (200 µA @ 90V) and lower forward voltage (800 mV @ 5A) compared to the original SB580 (500 µA @ 80V and 850 mV @ 5A respectively). It also supports higher maximum junction temperature (175°C). These characteristics may provide improved efficiency in specific applications, but compatibility with existing designs depends on circuit tolerance for these parameter variations.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the inventory status of substitute parts? A: All substitute parts are active products with current inventory: SB580E-G (861 Pcs), SB5100E-G (2639 Pcs), SB5H90-E3/54 (2198 Pcs), and SR510 (3972 Pcs). Availability should be confirmed with suppliers for specific procurement timelines.

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