VS-83CNQ080ASLPBF Equivalent & Substitute Parts

Part Overview

The VS-83CNQ080ASLPBF is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 80 V DC reverse voltage and 40 A average rectified current per diode. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V
Current - Average Rectified (Io) (per Diode)	40 A
Voltage - Forward (Vf) (Max) @ If	810 mV @ 40 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1.5 mA @ 80 V
Operating Temperature - Junction	-55°C ~ 175°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the VS-83CNQ080ASLPBF is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 80 V
Current - Average Rectified (Io) (per Diode): 40 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 1.5 mA @ 80 V
Operating Temperature - Junction: -55°C ~ 175°C

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part 83CNQ080SL meets all electrical and mechanical equivalence criteria. Forward voltage (Vf) at 40 A differs between the main part (810 mV) and substitute (1 V), remaining within acceptable operational parameters for Schottky diode arrays in this rating class.

Parameter Comparison

Parameter	VS-83CNQ080ASLPBF (Main Part)	83CNQ080SL (Substitute)
Manufacturer	Vishay General Semiconductor - Diodes Division	SMC Diode Solutions
Product Status	Obsolete	Active
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	80 V	80 V
Current - Average Rectified (Io) (per Diode)	40 A	40 A
Voltage - Forward (Vf) (Max) @ If	810 mV @ 40 A	1 V @ 40 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1.5 mA @ 80 V	1.5 mA @ 80 V
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	D-61-8-SL	PRM2-SL
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Affected

Engineering Selection Recommendations

The 83CNQ080SL manufactured by SMC Diode Solutions is the qualified substitute for the obsolete VS-83CNQ080ASLPBF. Selection of this substitute is based on the following factors:

Product Status: The main part is classified as obsolete, while the substitute maintains active product status, ensuring continued availability and supply chain reliability.

Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, satisfying environmental and handling requirements. The substitute carries REACH Affected status, indicating full regulatory documentation availability.

Electrical Equivalence: All critical electrical parameters match specification, including reverse voltage rating (80 V), rectified current capacity (40 A per diode), leakage current (1.5 mA @ 80 V), and operating temperature range (-55°C ~ 175°C).

Package Consideration: The substitute utilizes PRM2-SL package versus the main part's D-61-8-SL package. Both are surface mount configurations with identical electrical and thermal characteristics. PCB layout and footprint compatibility must be evaluated during design integration.

Frequently Asked Questions (FAQ)

Q: Can the 83CNQ080SL directly replace the VS-83CNQ080ASLPBF in existing designs?

A: Electrical substitution is valid based on matched ratings and specifications. Physical substitution requires PCB footprint compatibility assessment between D-61-8-SL and PRM2-SL packages.

Q: What is the significance of the forward voltage difference (810 mV vs. 1 V)?

A: The 190 mV difference at 40 A represents normal manufacturing variation within Schottky diode technology. Both values fall within acceptable operating parameters for this device class and do not affect functional compatibility.

Q: Are there thermal management differences between the main part and substitute?

A: Both parts share identical operating temperature range (-55°C ~ 175°C) and MSL Level 1 rating. Thermal performance is determined by package design; PCB thermal design should be evaluated for the PRM2-SL package geometry.

Q: What compliance documentation is required for the substitute part?

A: The 83CNQ080SL maintains ROHS3 compliance and carries REACH Affected status, requiring full REACH documentation. The main part is REACH Unaffected. Regulatory requirements for your application determine documentation necessity.

Q: Is the base product number change (83CNQ080 vs. 83CNQ) significant?

A: The base product number reflects manufacturer designation conventions. Electrical and mechanical specifications remain equivalent; the full part number 83CNQ080SL defines the complete device specification.

Q: What inventory considerations apply to this substitution?

A: The main part (VS-83CNQ080ASLPBF) is obsolete with 1147 pieces in stock. The substitute (83CNQ080SL) is active with 1110 pieces available, providing long-term supply continuity for new production and field replacement applications.

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