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WNSC16650CWQ Equivalent & Substitute Parts
Part Overview
The WNSC16650CWQ is a Silicon Carbide Schottky diode array manufactured by WeEn Semiconductors, configured as a 1 Pair Common Cathode arrangement rated for 650 V DC reverse voltage and 16 A average rectified current per diode. The device is packaged in a TO-247-3 through-hole configuration and is classified as obsolete product status.
Due to the obsolete status of the WNSC16650CWQ, identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Active product alternatives with identical or superior electrical characteristics are available from the same manufacturer.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 650 | V |
| Current - Average Rectified (Io) (per Diode) | 16 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.7 V @ 8 A | V @ A |
| Reverse Recovery Time (trr) | 0 | ns |
| Current - Reverse Leakage @ Vr | 50 | µA @ 650 V |
| Operating Temperature - Junction | 175 | °C |
| Diode Configuration | 1 Pair Common Cathode | — |
| Technology | SiC (Silicon Carbide) Schottky | — |
| Package / Case | TO-247-3 | — |
| Mounting Type | Through Hole | — |
Substitute Part Grouping Explanation
Substitution of the WNSC16650CWQ is determined by strict equivalence across the following critical parameters:
Mandatory Equivalence Parameters:
- Voltage - DC Reverse (Vr) (Max): 650 V
- Current - Average Rectified (Io) (per Diode): 16 A
- Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 8 A
- Reverse Recovery Time (trr): 0 ns
- Diode Configuration: 1 Pair Common Cathode
- Technology: SiC (Silicon Carbide) Schottky
- Package / Case: TO-247-3
- Mounting Type: Through Hole
Substitute parts are classified into two categories:
MFR Recommended Substitute: WNSC5D16650CW6Q meets all mandatory equivalence parameters and represents the manufacturer-recommended active product replacement. This part exhibits improved reverse leakage characteristics (40 µA vs. 50 µA @ 650 V) and extended operating temperature range (-55°C ~ 175°C vs. 175°C).
Parametric Equivalent: WNSC2D16650CWQ maintains full electrical and mechanical equivalence across all critical parameters. This part is supplied in Tube packaging and is classified as active product status.
Parameter Comparison
| Parameter | WNSC16650CWQ (Main) | WNSC5D16650CW6Q (MFR Recommended) | WNSC2D16650CWQ (Parametric Equivalent) |
|---|---|---|---|
| Manufacturer | WeEn Semiconductors | WeEn Semiconductors | WeEn Semiconductors |
| Product Status | Obsolete | Active | Active |
| Voltage - DC Reverse (Vr) (Max) | 650 V | 650 V | 650 V |
| Current - Average Rectified (Io) (per Diode) | 16 A | 16 A | 16 A |
| Voltage - Forward (Vf) (Max) @ If | 1.7 V @ 8 A | 1.7 V @ 8 A | 1.7 V @ 8 A |
| Reverse Recovery Time (trr) | 0 ns | 0 ns | 0 ns |
| Current - Reverse Leakage @ Vr | 50 µA @ 650 V | 40 µA @ 650 V | 40 µA @ 650 V |
| Operating Temperature - Junction | 175°C | -55°C ~ 175°C | 175°C |
| Diode Configuration | 1 Pair Common Cathode | 1 Pair Common Cathode | 1 Pair Common Cathode |
| Technology | SiC (Silicon Carbide) Schottky | SiC (Silicon Carbide) Schottky | SiC (Silicon Carbide) Schottky |
| Package / Case | TO-247-3 | TO-247-3 | TO-247-3 |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Packaging | — | — | Tube |
| RoHS Status | RoHS Compliant | — | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 | EAR99 |
| HTSUS | 8541.10.0080 | 8541.10.0080 | 8541.10.0080 |
Engineering Selection Recommendations
WNSC5D16650CW6Q (MFR Recommended Substitute): This part is the manufacturer-recommended replacement for the obsolete WNSC16650CWQ. It maintains full electrical equivalence across all critical parameters while offering improved reverse leakage performance (40 µA vs. 50 µA @ 650 V) and an extended operating temperature range (-55°C ~ 175°C). Active product status ensures long-term availability and supply chain continuity. This part is suitable for new designs and production applications requiring the WNSC16650CWQ electrical specification.
WNSC2D16650CWQ (Parametric Equivalent): This part provides complete parametric equivalence to the WNSC16650CWQ with identical electrical characteristics and operating temperature range (175°C). Active product status supports ongoing availability. The Tube packaging format differs from the main part but does not affect electrical or mechanical compatibility. This part is suitable for applications where packaging format is not a constraint.
Both substitute parts are RoHS Compliant, carry identical export classification (EAR99), and maintain the same HTSUS commodity code as the original part.
Frequently Asked Questions (FAQ)
Q: Can WNSC5D16650CW6Q be used as a direct replacement for WNSC16650CWQ?
A: Yes. WNSC5D16650CW6Q meets all mandatory electrical and mechanical equivalence parameters. The improved reverse leakage characteristic (40 µA vs. 50 µA @ 650 V) and extended operating temperature range (-55°C ~ 175°C) represent performance enhancements. The part is manufacturer-recommended and classified as active product status.
Q: What is the difference between WNSC5D16650CW6Q and WNSC2D16650CWQ?
A: Both parts are parametric equivalents to WNSC16650CWQ. WNSC5D16650CW6Q is the manufacturer-recommended substitute with improved reverse leakage and extended temperature range. WNSC2D16650CWQ provides identical electrical characteristics to the original part and is supplied in Tube packaging. Selection depends on application requirements and packaging preferences.
Q: Are the substitute parts pin-compatible with WNSC16650CWQ?
A: Yes. Both substitute parts use the TO-247-3 package with identical through-hole mounting configuration. Pin assignment and mechanical footprint are equivalent.
Q: Does packaging format affect electrical performance?
A: No. Packaging format (Tube vs. standard packaging) does not affect electrical characteristics or performance. Selection is based on supply chain and handling requirements.
Q: Are all parts RoHS Compliant?
A: Yes. WNSC16650CWQ, WNSC5D16650CW6Q, and WNSC2D16650CWQ are all RoHS Compliant and carry identical export classification (EAR99) and HTSUS commodity code (8541.10.0080).
Q: Why is WNSC16650CWQ classified as obsolete?
A: Product status reflects manufacturer lifecycle decisions. Active alternatives with equivalent or superior electrical characteristics are available from WeEn Semiconductors.
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