CDBZ2240-HF Equivalent & Substitute Parts

Part Overview

The CDBZ2240-HF is a Schottky diode rated for 2A current capacity in a Z2PAK package, manufactured by Comchip Technology. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. Substitute parts must maintain electrical performance characteristics and mechanical compatibility within the application circuit.

Substiute Parts

CDBZ2240-HF

Comchip TechnologyIn Stock: 957CDBZ2240-HF Datasheet

Current PartRFQ

SD1206S040S2R0

KYOCERA AVXIn Stock: 174720SD1206S040S2R0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDBZ2240-HF is based on the following critical parameters:

Electrical Compatibility Criteria:

• Current rating of 2A minimum
• Schottky diode technology classification
• Reverse voltage rating sufficient for application requirements
• Forward voltage characteristics within acceptable operating range

Mechanical and Environmental Criteria:

• Moisture Sensitivity Level 1 (Unlimited) compatibility
• Surface mount or through-hole mounting capability
• Operating temperature range of -55°C to 125°C minimum
• ECCN and HTSUS classification alignment

The substitute part SD1206S040S2R0 meets these criteria through equivalent current handling (2A), matching Schottky technology, and identical MSL and regulatory classifications.

Parameter Comparison

Engineering Selection Recommendations

SD1206S040S2R0 as Primary Substitute:

The SD1206S040S2R0 from KYOCERA AVX is the designated substitute for the obsolete CDBZ2240-HF. This substitution is supported by:

• Identical 2A current rating for equivalent power handling
• Matching Schottky diode technology and fast recovery characteristics
• Equivalent MSL 1 (Unlimited) moisture sensitivity classification
• Identical ECCN (EAR99) and HTSUS (8541.10.0080) regulatory codes
• Active product status with established supply chain availability
• ROHS3 compliance and REACH unaffected status for environmental regulatory alignment

Design Consideration:

The primary design change involves package transition from through-hole Z2PAK to surface mount 1206 (3216 Metric). This substitution requires PCB layout modification and assembly process adjustment. The electrical performance parameters of the SD1206S040S2R0 (40V reverse rating, 500mV forward voltage at 2A, fast recovery ≤500ns) support direct functional replacement in applications previously served by the CDBZ2240-HF.

Frequently Asked Questions (FAQ)

Q: Can SD1206S040S2R0 directly replace CDBZ2240-HF without circuit modification?

A: Electrical substitution is direct based on matching 2A current rating and Schottky technology. However, package change from Z2PAK (through-hole) to 1206 (surface mount) requires PCB redesign and assembly process modification.

Q: What are the key electrical parameters that confirm substitution compatibility?

A: The critical parameters are current rating (2A), diode technology (Schottky), reverse voltage capability (40V minimum), and forward voltage characteristics (500mV @ 2A). All parameters align between the main part and substitute.

Q: Are there regulatory or compliance differences between these parts?

A: Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. The SD1206S040S2R0 includes ROHS3 compliance and REACH unaffected status, providing enhanced environmental regulatory alignment.

Q: What is the significance of MSL 1 (Unlimited) for both parts?

A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions. Both parts can be stored and handled without moisture control precautions, simplifying logistics and inventory management.

Q: How does the package change from Z2PAK to 1206 affect application design?

A: Z2PAK is a through-hole package; 1206 is a surface mount package. This requires PCB footprint redesign, solder reflow process implementation, and potential circuit board layer stack-up adjustments. Electrical performance remains equivalent.

Q: Is the SD1206S040S2R0 currently available for procurement?

A: Yes. The SD1206S040S2R0 maintains active product status with 174,650 pieces in stock, ensuring supply chain continuity compared to the obsolete CDBZ2240-HF.