183NQ080 Schottky Diode Equivalent & Substitute Parts

Part Overview

The 183NQ080 is a Schottky rectifier diode rated for 80 V DC reverse voltage and 180 A average rectified current in a D-67 HALF-PAK chassis mount package. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The part exhibits fast recovery characteristics suitable for high-frequency rectification applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	80	V
Current - Average Rectified (Io)	180	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 180 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	4.5	mA @ 80 V
Capacitance @ Vr, F	4150	pF @ 5V, 1MHz
Mounting Type	Chassis Mount	—
Package / Case	D-67 HALF-PAK	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 183NQ080 is determined by electrical and mechanical parameter equivalence. The critical parameters governing substitution are:

Voltage Rating: 80 V DC reverse voltage (Vr) maximum
Current Rating: 180 A average rectified current (Io)
Forward Voltage Drop: 950 mV maximum at 180 A forward current
Recovery Speed: Fast recovery characteristic ≤ 500ns for currents > 200mA
Reverse Leakage: 4.5 mA at 80 V
Capacitance: 4150 pF at 5V, 1MHz
Mounting Configuration: Chassis mount with HALF-PAK package geometry
Compliance: ROHS3 compliance and MSL 1 rating

The substitute part 183NQ080-1 maintains electrical equivalence across all specified parameters while offering active product status and improved supply availability.

Parameter Comparison

Parameter	183NQ080 (Obsolete)	183NQ080-1 (Active)	Match
Manufacturer	Vishay General Semiconductor - Diodes Division	SMC Diode Solutions	Different
Product Status	Obsolete	Active	Improved
Technology	Schottky	Schottky	Equivalent
Voltage - DC Reverse (Vr) (Max)	80 V	80 V	Equivalent
Current - Average Rectified (Io)	180 A	180 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	950 mV @ 180 A	950 mV @ 180 A	Equivalent
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	4.5 mA @ 80 V	4.5 mA @ 80 V	Equivalent
Capacitance @ Vr, F	4150 pF @ 5V, 1MHz	4150 pF @ 5V, 1MHz	Equivalent
Mounting Type	Chassis Mount	Chassis Mount	Equivalent
Package / Case	D-67 HALF-PAK	HALF-PAK	Equivalent
Supplier Device Package	D-67 HALF-PAK	PRM1-1 (Half Pak Module)	Compatible
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Affected	Different

Engineering Selection Recommendations

The 183NQ080-1 manufactured by SMC Diode Solutions is the direct electrical and mechanical equivalent for the obsolete 183NQ080. Selection of the 183NQ080-1 is supported by the following factors:

Product Status: The 183NQ080-1 maintains active product status, ensuring long-term availability and supply chain continuity compared to the obsolete 183NQ080.

Electrical Equivalence: All critical electrical parameters are identical, including voltage rating (80 V), current rating (180 A), forward voltage drop (950 mV @ 180 A), recovery speed (≤ 500ns), reverse leakage (4.5 mA @ 80 V), and capacitance (4150 pF @ 5V, 1MHz).

Compliance: Both parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity) ratings, satisfying regulatory and environmental requirements.

Package Compatibility: The HALF-PAK package designation and chassis mount configuration are maintained, ensuring mechanical and thermal interface compatibility with existing designs.

Regulatory Considerations: The 183NQ080-1 is REACH Affected, whereas the original part is REACH Unaffected. Design teams must confirm REACH compliance requirements for their specific application and geographic market.

Frequently Asked Questions (FAQ)

Q: Can the 183NQ080-1 be used as a direct replacement for the 183NQ080?

A: Yes. The 183NQ080-1 is electrically and mechanically equivalent across all specified parameters. Both parts are Schottky diodes with identical voltage ratings (80 V), current ratings (180 A), forward voltage characteristics (950 mV @ 180 A), and package configurations (HALF-PAK chassis mount).

Q: What is the difference between the D-67 HALF-PAK and PRM1-1 package designations?

A: Both designations refer to the same HALF-PAK package form factor. The D-67 is the original Vishay designation, while PRM1-1 is the SMC Diode Solutions equivalent designation for the identical Half Pak Module package. The physical dimensions and mounting interfaces are compatible.

Q: Are there any compliance differences between the two parts?

A: Both parts are ROHS3 compliant and carry MSL 1 (unlimited) ratings. The 183NQ080-1 is REACH Affected, whereas the original 183NQ080 is REACH Unaffected. Applications subject to REACH regulations must confirm compliance requirements with the substitute part.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in voltage rating (80 V DC reverse), current rating (180 A average rectified), forward voltage drop (950 mV @ 180 A), recovery speed (≤ 500ns), reverse leakage (4.5 mA @ 80 V), and capacitance (4150 pF @ 5V, 1MHz). All parameters must match for direct substitution.

Q: Is the 183NQ080-1 suitable for high-frequency rectification applications?

A: Yes. The 183NQ080-1 maintains the fast recovery characteristic (≤ 500ns for currents > 200mA) required for high-frequency rectification, identical to the original 183NQ080.

Q: What inventory status should be considered when selecting between these parts?

A: The 183NQ080 (obsolete) has 915 pieces in stock, while the 183NQ080-1 (active) has 1107 pieces available. For new designs and long-term supply assurance, the 183NQ080-1 is the appropriate selection due to its active product status.

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