MUR1640CT Equivalent & Substitute Parts

Part Overview

The MUR1640CT is a general-purpose diode array featuring a 1 Pair Common Cathode configuration rated for 400 V DC reverse voltage and 8 A average rectified current per diode. Manufactured by onsemi in the SWITCHMODE™ series, this component is packaged in TO-220-3 through-hole format with fast recovery characteristics (60 ns reverse recovery time). The MUR1640CT is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs.

Substiute Parts

MUR1640CT

onsemiIn Stock: 1656MUR1640CT Datasheet

Current PartRFQ

MUR1640CTG

onsemiIn Stock: 53873MUR1640CTG Datasheet

DirectRFQ

MUR1640CT-BP

Micro Commercial CoIn Stock: 1166MUR1640CT-BP Datasheet

SimilarRFQ

VS-16CTU04-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 10716VS-16CTU04-M3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MUR1640CT are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Diode Configuration: 1 Pair Common Cathode
• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io) (per Diode): 8 A or higher
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 8 A
• Reverse Recovery Time (trr): 60 ns or faster
• Current - Reverse Leakage @ Vr: 10 µA @ 400 V or lower
• Operating Temperature - Junction: -65°C ~ 175°C or equivalent range
• Mounting Type: Through Hole
• Package / Case: TO-220-3

Direct Equivalent: MUR1640CTG (onsemi) maintains identical electrical specifications and packaging, with active product status and RoHS3 compliance.

Parametric Equivalent: VS-16CTU04-M3 (Vishay General Semiconductor - Diodes Division) meets all critical electrical parameters and operating temperature range, with active product status and RoHS3 compliance.

Similar Substitute: MUR1640CT-BP (Micro Commercial Co) provides higher current rating (16 A) and improved reverse recovery time (50 ns), maintaining 400 V reverse voltage and TO-220-3 packaging with active product status.

Parameter Comparison

Engineering Selection Recommendations

MUR1640CTG (Direct Equivalent - Recommended for Direct Replacement)

MUR1640CTG is the primary equivalent for MUR1640CT obsolescence replacement. This onsemi component maintains identical electrical specifications across all critical parameters: 400 V reverse voltage, 8 A average rectified current, 1.3 V forward voltage at 8 A, and 60 ns reverse recovery time. The operating temperature range (-65°C ~ 175°C) and TO-220-3 packaging are identical. MUR1640CTG holds active product status with RoHS3 compliance, addressing regulatory requirements that the original MUR1640CT does not meet. Tube packaging is standard for this variant. Inventory availability is substantial at 53,800 pieces.

VS-16CTU04-M3 (Parametric Equivalent - Alternative Source)

VS-16CTU04-M3 from Vishay General Semiconductor - Diodes Division provides full parametric equivalence to MUR1640CT. All critical electrical specifications align: 400 V reverse voltage, 8 A average rectified current, 1.3 V forward voltage at 8 A, 60 ns reverse recovery time, and 10 µA reverse leakage current. The operating temperature range (-65°C ~ 175°C) and TO-220-3 packaging match the original specification. This component is active with RoHS3 compliance and FRED Pt® series designation. Tube packaging is provided. Inventory availability is 10,636 pieces.

MUR1640CT-BP (Higher Performance Substitute - Enhanced Specifications)

MUR1640CT-BP from Micro Commercial Co functions as a substitute with enhanced electrical performance. While maintaining 400 V reverse voltage and TO-220-3 packaging, this component provides doubled current rating (16 A versus 8 A) and improved reverse recovery time (50 ns versus 60 ns). Forward voltage specification remains at 1.3 V @ 8 A, and reverse leakage is reduced to 5 µA @ 400 V. The operating temperature range (-55°C ~ 150°C) is narrower than the original specification. This component is active with bulk packaging. Inventory availability is 1,093 pieces. Selection of this part is appropriate for applications where higher current capacity and faster recovery characteristics provide system benefits.

Frequently Asked Questions (FAQ)

Q: Can MUR1640CTG be used as a direct replacement for MUR1640CT?

A: Yes. MUR1640CTG is a direct equivalent with identical electrical specifications and TO-220-3 packaging. The primary differences are active product status, RoHS3 compliance, and tube packaging format. No circuit modifications are required.

Q: What is the difference between MUR1640CTG and VS-16CTU04-M3?

A: Both components meet identical electrical specifications for the MUR1640CT application. The primary differences are manufacturer (onsemi versus Vishay), series designation (SWITCHMODE™ versus FRED Pt®), and packaging format (tube for both). Selection between these parts depends on supplier availability and procurement preferences.

Q: When should MUR1640CT-BP be selected instead of MUR1640CTG?

A: MUR1640CT-BP is selected when the application benefits from higher current capacity (16 A versus 8 A) or faster reverse recovery time (50 ns versus 60 ns). The narrower operating temperature range (-55°C ~ 150°C versus -65°C ~ 175°C) must be verified against application requirements before selection.

Q: Are all substitute parts compatible with the original MUR1640CT PCB layout?

A: Yes. All substitute parts use identical TO-220-3 through-hole packaging and pin configuration, ensuring direct PCB compatibility without layout modifications.

Q: What is the significance of RoHS3 compliance for substitute selection?

A: RoHS3 compliance indicates conformance to current environmental and hazardous substance restrictions. The original MUR1640CT is RoHS non-compliant. MUR1640CTG and VS-16CTU04-M3 are RoHS3 compliant, meeting modern regulatory requirements for new designs and procurement.

Q: How do packaging formats (Tube, Bulk) affect component selection?

A: Packaging format affects handling, storage, and procurement logistics but does not impact electrical performance or PCB compatibility. Tube packaging (MUR1640CTG, VS-16CTU04-M3) is standard for automated assembly processes. Bulk packaging (MUR1640CT-BP) is used for manual assembly or reel-based processes. Selection depends on manufacturing process requirements.

Q: Can the operating temperature range difference between MUR1640CT-BP and the original part affect system reliability?

A: The MUR1640CT-BP operating temperature range (-55°C ~ 175°C) is narrower than the original (-65°C ~ 175°C). If the application requires operation below -55°C, MUR1640CT-BP is not suitable. MUR1640CTG or VS-16CTU04-M3 maintain the full original temperature range.

Q: What inventory considerations apply to these substitute parts?

A: MUR1640CTG has the highest inventory availability (53,800 pieces), followed by VS-16CTU04-M3 (10,636 pieces) and MUR1640CT-BP (1,093 pieces). For long-term procurement planning, MUR1640CTG provides the most reliable supply continuity.