CDBC580-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBC580-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 80 V DC reverse voltage and 5 A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing production and maintenance applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified parameters within acceptable design tolerances.

Substiute Parts

CDBC580-G

Comchip TechnologyIn Stock: 880374CDBC580-G Datasheet

Current PartRFQ

CDBC5100-HF

Comchip TechnologyIn Stock: 63796CDBC5100-HF Datasheet

DirectRFQ

SK58L-TP

Micro Commercial CoIn Stock: 2370SK58L-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBC580-G are identified based on the following criteria:

Primary Substitution Parameters:

• Technology: Schottky (mandatory)
• Package / Case: DO-214AB, SMC (mandatory)
• Mounting Type: Surface Mount (mandatory)
• Current - Average Rectified (Io): 5 A (mandatory)
• Voltage - Forward (Vf) (Max) @ If: 850 mV @ 5 A (mandatory)
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory)

Secondary Substitution Parameters (allowable variance):

• Voltage - DC Reverse (Vr) (Max): Equal or greater than 80 V
• Current - Reverse Leakage @ Vr: Equal or less than 500 µA @ rated voltage
• Operating Temperature - Junction: Equal or greater range than -40°C to 125°C

Two substitute parts meet these criteria: CDBC5100-HF (Comchip Technology, active status) and SK58L-TP (Micro Commercial Co, not for new designs status).

Parameter Comparison

Engineering Selection Recommendations

CDBC5100-HF (Primary Substitute): CDBC5100-HF is the recommended substitute for new designs and ongoing production. This part is manufactured by Comchip Technology (same manufacturer as the main part) and maintains active product status. The CDBC5100-HF provides a higher reverse voltage rating (100 V versus 80 V), ensuring compatibility in applications where the CDBC580-G was specified. All critical electrical parameters—forward voltage, rectified current, recovery speed, and reverse leakage—are identical to the main part. The component is ROHS3 compliant and available in Tape & Reel packaging for automated assembly. The identical operating temperature range (-40°C to 125°C) ensures thermal compatibility.

SK58L-TP (Secondary Substitute): SK58L-TP is a functional equivalent manufactured by Micro Commercial Co. This part matches the CDBC580-G in reverse voltage (80 V) and all primary electrical specifications. However, SK58L-TP carries a "Not For New Designs" product status, limiting its application to legacy system maintenance and repair. The reverse leakage current is higher (1 mA @ 80 V versus 500 µA @ 80 V), which may affect performance in low-leakage applications. The extended operating temperature range (-55°C to 150°C) provides additional thermal margin. ROHS3 compliance and Tape & Reel packaging are available.

Frequently Asked Questions (FAQ)

Q: Can CDBC5100-HF be used as a direct replacement for CDBC580-G?

A: Yes. CDBC5100-HF is electrically and mechanically compatible with CDBC580-G. The higher reverse voltage rating (100 V) is a superset of the 80 V requirement and does not create incompatibility. All other critical parameters—forward voltage, rectified current, recovery speed, and package—are identical.

Q: What is the difference between CDBC5100-HF and SK58L-TP?

A: Both parts are functionally equivalent to CDBC580-G in terms of core electrical performance. CDBC5100-HF is manufactured by Comchip Technology with active product status, while SK58L-TP is manufactured by Micro Commercial Co with "Not For New Designs" status. SK58L-TP exhibits higher reverse leakage current (1 mA versus 500 µA at rated voltage). For new designs, CDBC5100-HF is the preferred choice.

Q: Are the packages identical between all three parts?

A: Yes. All three parts use the DO-214AB (SMC) surface mount package. Pin configuration, footprint, and soldering requirements are identical. Both substitute parts are available in Tape & Reel (TR) packaging for automated assembly.

Q: Does the higher reverse voltage of CDBC5100-HF affect circuit performance?

A: No. A higher reverse voltage rating does not degrade performance in circuits designed for 80 V operation. The CDBC5100-HF will operate identically to the CDBC580-G in all 80 V applications. The additional voltage margin provides design flexibility for future applications.

Q: What is the significance of the "Not For New Designs" status of SK58L-TP?

A: This designation indicates that Micro Commercial Co does not recommend SK58L-TP for new product development. While the part remains functionally compatible, it is intended for legacy system support and repair only. For new designs, CDBC5100-HF is the appropriate selection.

Q: Are there compliance or regulatory differences between the substitute parts?

A: All three parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99). Both substitute parts are ROHS3 compliant. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no moisture sensitivity concerns during storage or handling.

Q: Can SK58L-TP be used in applications requiring low reverse leakage?

A: SK58L-TP exhibits reverse leakage of 1 mA @ 80 V, compared to 500 µA @ 80 V for CDBC580-G and CDBC5100-HF. In applications where reverse leakage is a critical parameter, CDBC5100-HF is the preferred substitute. SK58L-TP is suitable for general-purpose rectification where leakage tolerance is higher.