SB180E-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB180E-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 80V DC reverse voltage and 1A average rectified current in a through-hole DO-41 package. This component is actively produced and widely used in power supply circuits, reverse polarity protection, and fast switching applications requiring low forward voltage drop characteristics.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range. The SB180E-G remains in active production with 738 pieces in current inventory stock.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	850 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500 µA @ 80 V	µA
Capacitance @ Vr, F	110 pF @ 4V, 1MHz	pF
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-60°C ~ 150°C	°C
Technology	Schottky	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitute parts for the SB180E-G are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 80V
Current - Average Rectified (Io): 1A
Technology: Schottky
Mounting Type: Through Hole
Package / Case: DO-41 (DO-204AL, Axial)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 500 µA @ 80V
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SB180-T manufactured by Diodes Incorporated meets all critical electrical and mechanical parameters within the allowed tolerance range for direct substitution in applications requiring SB180E-G functionality.

Parameter Comparison

Parameter	SB180E-G (Comchip)	SB180-T (Diodes Inc.)	Match Status
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	850 mV @ 1 A	800 mV @ 1 A	Compatible
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	500 µA @ 80 V	500 µA @ 80 V	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	Equivalent
Operating Temperature - Junction	-60°C ~ 150°C	-65°C ~ 125°C	Compatible
Technology	Schottky	Schottky	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

SB180E-G (Comchip Technology) is the primary part specification. This component is actively manufactured, ROHS3 compliant, and carries REACH Unaffected status. Current inventory availability is 738 pieces in new original condition.

SB180-T (Diodes Incorporated) is the qualified substitute part. This component is also actively manufactured, ROHS3 compliant, and carries REACH Unaffected status. Current inventory availability is 21,120 pieces in new original condition.

Both parts are classified under ECCN EAR99 and HTSUS 8541.10.0080. Both maintain MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.

The SB180-T demonstrates a lower forward voltage drop (800 mV vs. 850 mV @ 1A), which represents improved efficiency in power conversion applications. The operating temperature range of SB180-T (-65°C ~ 125°C) is slightly narrower than SB180E-G (-60°C ~ 150°C), requiring verification for applications operating above 125°C or below -65°C.

Frequently Asked Questions (FAQ)

Q: Can SB180-T replace SB180E-G in all applications?

A: SB180-T meets all critical electrical parameters (80V reverse voltage, 1A current rating, Schottky technology, fast recovery speed) and mechanical specifications (DO-41 through-hole package). Substitution is valid for applications operating within the SB180-T temperature range of -65°C to 125°C. Applications requiring operation above 125°C or below -65°C must use the SB180E-G.

Q: What is the difference in forward voltage drop between these parts?

A: SB180E-G specifies 850 mV maximum forward voltage at 1A, while SB180-T specifies 800 mV maximum at 1A. The SB180-T exhibits lower forward voltage drop, resulting in reduced power dissipation and improved thermal performance in equivalent circuit applications.

Q: Are both parts RoHS compliant?

A: Yes. Both SB180E-G and SB180-T are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What packaging formats are available?

A: SB180E-G is supplied in Tape & Reel (TR) format. SB180-T is supplied in Cut Tape (CT) format. Both use identical DO-41 (DO-204AL, Axial) package geometry, ensuring mechanical compatibility in through-hole PCB applications.

Q: Do these parts require special moisture handling?

A: No. Both components carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard storage and handling procedures are sufficient without requiring dry-pack or desiccant storage.

Q: What is the base product number for these parts?

A: Both SB180E-G and SB180-T share the base product number SB180, indicating they are part of the same Schottky diode family with identical core electrical specifications.

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