SM4001PL-TP Equivalent & Substitute Parts

Part Overview

The SM4001PL-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1 A average rectified current in a surface mount SOD-123FL package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary for applications requiring continued supply, maintenance of existing products, or transition to active alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

SM4001PL-TP

Micro Commercial CoIn Stock: 12805SM4001PL-TP Datasheet

Current PartRFQ

CGRKM4001-HF

Comchip TechnologyIn Stock: 7722CGRKM4001-HF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM4001PL-TP are identified based on electrical parameter equivalence and mechanical compatibility. The critical parameters determining substitution eligibility are:

• Voltage Rating: DC reverse voltage of 50 V (maximum)
• Current Rating: Average rectified current of 1 A
• Forward Voltage: Maximum 1.1 V at 1 A forward current
• Recovery Speed: Standard recovery characteristics >500 ns at >200 mA
• Reverse Leakage: 5 µA at 50 V
• Junction Capacitance: 15 pF at 4 V, 1 MHz
• Package Type: SOD-123F surface mount package
• Compliance: ROHS3 compliance and MSL Level 1

Parts meeting all these electrical specifications and housed in mechanically compatible SOD-123F packages qualify as functional equivalents. Packaging format (Cut Tape vs. Tape & Reel) does not affect electrical substitution but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

The CGRKM4001-HF from Comchip Technology is an electrical equivalent to the SM4001PL-TP. Both parts share identical electrical specifications across all critical parameters: 50 V reverse voltage, 1 A average rectified current, 1.1 V forward voltage at 1 A, standard recovery speed, reverse leakage current, and junction capacitance. Both are ROHS3 compliant and carry MSL Level 1 rating.

The primary distinction is product status: the SM4001PL-TP is classified as "Not For New Designs," while the CGRKM4001-HF maintains "Active" status. This makes the CGRKM4001-HF the preferred choice for new applications and ongoing production requiring long-term supply assurance.

Operating temperature ranges differ slightly. The SM4001PL-TP operates from -65°C to 175°C, while the CGRKM4001-HF operates from -55°C to 150°C. Applications requiring the full -65°C lower temperature limit of the original part require evaluation of actual operating conditions against the substitute's -55°C minimum.

Both parts are housed in SOD-123F surface mount packages with identical mechanical footprints, ensuring direct PCB compatibility. Packaging format differences (Cut Tape for SM4001PL-TP versus Tape & Reel for CGRKM4001-HF) affect procurement and assembly logistics but do not impact electrical performance or board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the CGRKM4001-HF replace the SM4001PL-TP in existing designs?

A: Yes. The CGRKM4001-HF meets all electrical specifications of the SM4001PL-TP: 50 V reverse voltage, 1 A average rectified current, 1.1 V forward voltage, standard recovery speed, reverse leakage current, and junction capacitance. Both are ROHS3 compliant with MSL Level 1 rating. Direct substitution is electrically valid.

Q: Are there package compatibility concerns?

A: Both parts use SOD-123F surface mount packages with identical mechanical footprints and pin configurations. PCB layout and assembly processes require no modification. Packaging format (Cut Tape versus Tape & Reel) affects procurement and handling but not electrical or mechanical compatibility.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates the SM4001PL-TP has reached end-of-life. Micro Commercial Co does not recommend this part for new product development. The CGRKM4001-HF, with "Active" status, is the recommended alternative for new applications and ensures continued availability.

Q: Do the operating temperature ranges affect substitution?

A: The SM4001PL-TP operates from -65°C to 175°C; the CGRKM4001-HF operates from -55°C to 150°C. Applications requiring operation below -55°C or above 150°C must verify actual operating conditions. Most commercial and industrial applications operate within the CGRKM4001-HF range.

Q: Are compliance certifications identical?

A: Yes. Both parts are ROHS3 compliant, carry MSL Level 1 (Unlimited) rating, are REACH Unaffected, and share the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: What parameters determine if a diode is a valid substitute?

A: Valid substitutes must match or exceed the following parameters: DC reverse voltage rating, average rectified current rating, forward voltage drop, recovery speed, reverse leakage current, junction capacitance, and mechanical package compatibility. All these parameters are identical between the SM4001PL-TP and CGRKM4001-HF.