CDBT-54C-G Equivalent & Substitute Parts Reference

Part Overview

The CDBT-54C-G is a Schottky diode array manufactured by Comchip Technology, configured as 1 pair common cathode with a maximum reverse voltage of 30 V and average rectified current of 200 mA per diode. The device is packaged in SOT-23-3 surface mount configuration and is classified as Active product status with ROHS3 compliance. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and packaging standards to support component procurement flexibility and supply chain continuity.

Substiute Parts

CDBT-54C-G

Comchip TechnologyIn Stock: 5486CDBT-54C-G Datasheet

Current PartRFQ

BAT54C-G

Comchip TechnologyIn Stock: 307002BAT54C-G Datasheet

Parametric EquivalentRFQ

BAT54C-TP

Micro Commercial CoIn Stock: 2621BAT54C-TP Datasheet

Parametric EquivalentRFQ

BAT54CTA

Diodes IncorporatedIn Stock: 5164BAT54CTA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDBT-54C-G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io) per Diode: 200 mA (DC)
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA
• Reverse Recovery Time (trr): 5 ns
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet these mandatory criteria. Variations in Current - Reverse Leakage @ Vr and Operating Temperature range are noted in the parameter comparison table and do not disqualify substitution eligibility within the specified electrical operating envelope.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed—BAT54C-G, BAT54C-TP, and BAT54CTA—are classified as Active product status and carry ROHS3 compliance certification, meeting regulatory and environmental requirements equivalent to the CDBT-54C-G.

BAT54C-G (Comchip Technology): Identical manufacturer to the main part with matching electrical and thermal specifications. Highest inventory availability (306,983 pcs) supports procurement continuity.

BAT54C-TP (Micro Commercial Co): Meets all mandatory electrical parameters with extended operating temperature range (-55°C to 125°C) compared to the main part (125°C max). Suitable for applications requiring lower temperature operation. Inventory: 2,527 pcs.

BAT54CTA (Diodes Incorporated): Meets all mandatory electrical parameters with reverse leakage current of 4 µA @ 25 V, within acceptable tolerance for the application envelope. Inventory: 5,101 pcs.

Selection among substitutes is based on manufacturer preference, inventory availability, and application-specific temperature requirements. All parts maintain identical package footprint (SOT-23-3) and surface mount compatibility.

Frequently Asked Questions (FAQ)

Q: Can BAT54C-G replace CDBT-54C-G in all applications?

A: Yes. BAT54C-G is manufactured by the same supplier (Comchip Technology) and matches all critical electrical parameters: 30 V reverse voltage, 200 mA average rectified current, 1 V forward voltage @ 100 mA, 5 ns reverse recovery time, and SOT-23-3 package configuration. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference in reverse leakage current between the substitute parts?

A: CDBT-54C-G and BAT54C-TP specify 2 µA @ 25 V. BAT54C-G specifies 2 mA @ 25 V (1000× higher). BAT54CTA specifies 4 µA @ 25 V. These variations remain within the small-signal diode operating envelope and do not affect substitution eligibility for the specified 30 V / 200 mA application class.

Q: Does BAT54C-TP's extended temperature range (-55°C to 125°C) affect compatibility?

A: No. The extended lower temperature specification of BAT54C-TP is a superset of the CDBT-54C-G specification (125°C max). BAT54C-TP is fully compatible and suitable for applications requiring operation below ambient temperature.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Yes. All substitute parts—BAT54C-G, BAT54C-TP, and BAT54CTA—are supplied in Tape & Reel packaging, maintaining identical handling and assembly compatibility with the CDBT-54C-G.

Q: What is the significance of the SOT-23 vs. SOT-23-3 package designation?

A: Both designations refer to the same 3-lead surface mount package footprint. SOT-23-3 is the formal designation; SOT-23 is an abbreviated reference. All parts in this comparison use identical lead configuration and PCB footprint.

Q: Are all parts REACH compliant?

A: Yes. All parts listed—CDBT-54C-G, BAT54C-G, BAT54C-TP, and BAT54CTA—carry REACH Unaffected status, indicating compliance with REACH chemical substance regulations.