S5DCF Equivalent & Substitute Parts

Part Overview

The S5DCF is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 200 V DC reverse voltage and 5 A average rectified current in a Surface Mount SMC package. This part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement continuity. The S5DCF operates across a junction temperature range of -65°C to 150°C and meets ROHS3 compliance requirements.

Substiute Parts

S5DCF

Diodes IncorporatedIn Stock: 1021S5DCF Datasheet

Current PartRFQ

S5MC_HF

Diodes IncorporatedIn Stock: 818S5MC_HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S5DCF is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Current - Average Rectified (Io): 5 A
• Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 5 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 10 µA
• Capacitance @ Vr, F: 40pF @ 4V, 1MHz
• Package / Case: DO-214AB, SMC
• Operating Temperature - Junction: -65°C ~ 150°C
• Mounting Type: Surface Mount

Voltage Rating Consideration: The S5DCF operates at 200 V DC reverse voltage. Substitute parts may operate at equal or higher voltage ratings, as higher voltage-rated devices remain functionally compatible in lower-voltage applications. The S5MC_HF operates at 1000 V, which exceeds the S5DCF requirement and maintains full electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The S5MC_HF is the manufacturer-recommended substitute for the obsolete S5DCF. Both devices share identical electrical characteristics for forward voltage, reverse leakage current, recovery speed, and capacitance. The S5MC_HF maintains the same 5 A current rating and identical operating temperature range.

The primary difference is the voltage rating: the S5MC_HF is rated for 1000 V DC reverse voltage compared to the S5DCF's 200 V rating. This higher voltage rating does not create incompatibility in applications designed for 200 V operation. Both parts are housed in the DO-214AB SMC surface mount package and are suitable for identical PCB layouts.

The S5MC_HF carries an active product status, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The S5MC_HF includes Moisture Sensitivity Level (MSL) 1 classification, indicating unlimited shelf life without moisture control measures.

Frequently Asked Questions (FAQ)

Q: Can the S5MC_HF directly replace the S5DCF in existing designs?

A: Yes. The S5MC_HF is electrically and mechanically compatible with the S5DCF. Both devices share identical forward voltage, reverse leakage, recovery speed, capacitance, and operating temperature specifications. The package footprint (DO-214AB, SMC) is identical, requiring no PCB modifications.

Q: Why does the S5MC_HF have a higher voltage rating (1000 V vs. 200 V)?

A: Higher voltage-rated diodes remain fully functional in lower-voltage applications. The S5MC_HF's 1000 V rating provides additional design margin and flexibility for applications that may require higher voltage tolerance. This does not affect performance in 200 V circuits.

Q: Are there compliance differences between the S5DCF and S5MC_HF?

A: Both parts are ROHS3 compliant and REACH unaffected. The S5MC_HF includes MSL 1 classification, which indicates superior moisture handling characteristics and unlimited shelf life without special storage requirements.

Q: What is the impact of the S5DCF's obsolete status?

A: The obsolete status indicates the S5DCF is no longer in active production. The S5MC_HF is actively manufactured, ensuring reliable procurement and supply chain continuity for new designs and ongoing production requirements.

Q: Are the electrical characteristics identical between these parts?

A: Yes, for all parameters relevant to circuit operation: forward voltage (1.15 V @ 5 A), reverse leakage (10 µA), recovery speed (>500ns), and capacitance (40pF @ 4V, 1MHz) are identical. Operating temperature range (-65°C to 150°C) is also identical.