CDBT-70-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBT-70-G is an active Schottky rectifier diode manufactured by Comchip Technology, designed for surface mount applications in SOT-23-3 packaging. This component operates at 70V reverse voltage with 70mA average rectified current, suitable for small signal switching and rectification circuits. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1), indicating robust handling characteristics for standard manufacturing environments. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturer offerings or part variants.

Substiute Parts

CDBT-70-G

Comchip TechnologyIn Stock: 660CDBT-70-G Datasheet

Current PartRFQ

BAS70-G

Comchip TechnologyIn Stock: 65157BAS70-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDBT-70-G is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 70 V
• Current - Average Rectified (Io): 70 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 15 mA
• Reverse Recovery Time (trr): 2 ns
• Current - Reverse Leakage @ Vr: 100 nA @ 50 V
• Capacitance @ Vr, F: 5 pF @ 0V, 1MHz

Mechanical Specifications:

• Package / Case: SOT-23-3 (TO-236-3, SC-59)
• Mounting Type: Surface Mount
• Supplier Device Package: SOT-23-3

Regulatory & Compliance:

• Technology: Schottky
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Product Status: Active

A substitute part must match all electrical parameters exactly, maintain identical package and mounting specifications, and satisfy the same regulatory compliance requirements. Parts meeting these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

CDBT-70-G (Primary Part)

The CDBT-70-G is the original specification component with 621 units in current inventory. This part is active in production, ROHS3 compliant, and carries REACH unaffected status. The unlimited MSL rating (MSL 1) permits standard handling without special moisture control measures. Selection of this part is appropriate when supply from the primary manufacturer is available and cost considerations do not require alternative sourcing.

BAS70-G (Direct Substitute)

The BAS70-G is a parametric equivalent manufactured by Comchip Technology with identical electrical specifications, mechanical packaging, and regulatory compliance. All critical parameters match exactly: 70V reverse voltage, 70mA average rectified current, 1V forward voltage at 15mA, 2ns reverse recovery time, and SOT-23-3 surface mount package. The BAS70-G maintains ROHS3 compliance and REACH unaffected status. This part carries significantly higher inventory availability (65,100 units), making it suitable for applications requiring extended supply assurance or volume procurement. Both parts are active products from the same manufacturer and are electrically and mechanically interchangeable.

Selection Criteria

Component selection between CDBT-70-G and BAS70-G should be based on:

• Supply chain availability and lead time requirements
• Inventory levels and volume commitments
• Cost differential between part variants
• Existing design documentation and qualification history

No electrical or mechanical re-qualification is required when substituting between these parts, as all parameters are identical and both maintain equivalent regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Are CDBT-70-G and BAS70-G electrically interchangeable?

A: Yes. Both parts are Schottky diodes with identical electrical specifications: 70V reverse voltage, 70mA average rectified current, 1V forward voltage at 15mA, 2ns reverse recovery time, 100nA reverse leakage at 50V, and 5pF capacitance at 0V/1MHz. No circuit modifications are required for substitution.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both CDBT-70-G and BAS70-G use identical SOT-23-3 surface mount packaging with the same pin configuration, footprint, and mounting requirements. No PCB layout changes are necessary.

Q: What is the difference between CDBT-70-G and BAS70-G?

A: The parts are parametric equivalents from the same manufacturer (Comchip Technology) with identical electrical and mechanical specifications. The primary difference is inventory availability: CDBT-70-G has 621 units in stock, while BAS70-G has 65,100 units available. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating they do not require special moisture control during storage or handling. Standard component storage conditions apply to both parts.

Q: Are there any compliance or certification differences between these parts?

A: No. Both CDBT-70-G and BAS70-G are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Regulatory compliance is identical.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on supply availability, cost considerations, and volume requirements. The BAS70-G offers higher inventory availability (65,100 units), while CDBT-70-G is available with 621 units in stock. Both are active products with equivalent long-term availability.

Q: Can existing designs using CDBT-70-G be updated to use BAS70-G?

A: Yes. No design changes are required. The parts are direct substitutes with identical electrical performance, mechanical packaging, and regulatory compliance. Existing schematics, PCB layouts, and bill of materials can be updated without circuit or assembly modifications.