SPM1005-ZCB Equivalent & Substitute Parts

Part Overview

The SPM1005-ZCB is a non-isolated Point-of-Load (PoL) module DC-DC converter manufactured by Sumida America Components Inc. This device provides a single regulated output adjustable from 0.6V to 3.6V at up to 6A, accepting input voltage from 2.95V to 6V. The SPM1005-ZCB is classified as obsolete, necessitating identification of functionally equivalent active alternatives for new designs and ongoing production requirements. Substitute parts must maintain compatibility with the specified electrical parameters and mechanical form factor constraints.

Substiute Parts

SPM1005-ZCB

Sumida America Components Inc.In Stock: 1284SPM1005-ZCB Datasheet

Current PartRFQ

APTH012A0X3-SRZ

OmniOn PowerIn Stock: 1475APTH012A0X3-SRZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SPM1005-ZCB are identified based on the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Single output topology (1 output required)
• Output voltage range: 0.6V to 3.6V (must support full range)
• Input voltage range overlap with 2.95V to 6V specification
• Output current capability: minimum 6A at rated conditions
• Operating temperature range: -40°C to 85°C
• Non-isolated PoL module architecture

Mechanical Compatibility Criteria:

• Surface mount package type
• Physical dimensions compatible with PCB layout constraints
• Module form factor suitable for direct replacement or board redesign

Compliance Criteria:

• RoHS compliance status
• ECCN classification consistency

The APTH012A0X3-SRZ from OmniOn Power meets these substitution criteria through equivalent electrical performance and active product status, despite differences in package form factor and enhanced current capability.

Parameter Comparison

Engineering Selection Recommendations

APTH012A0X3-SRZ as Primary Substitute:

The APTH012A0X3-SRZ is the designated substitute for the obsolete SPM1005-ZCB. This selection is based on the following engineering factors:

1. Product Status: The APTH012A0X3-SRZ maintains active product status with OmniOn Power, ensuring long-term availability and supply chain continuity.

2. Electrical Equivalence: Both devices provide identical output voltage range (0.6V to 3.6V) and support the required operating temperature range (-40°C to 85°C). The APTH012A0X3-SRZ exceeds the minimum current requirement at 12A versus 6A, providing design margin.

3. Input Voltage Compatibility: The APTH012A0X3-SRZ input range (2.4V to 5.5V) encompasses the SPM1005-ZCB specification (2.95V to 6V) within the overlapping region of 2.95V to 5.5V, suitable for applications operating within this window.

4. Compliance Alignment: Both devices carry EAR99 ECCN classification and maintain RoHS compliance, meeting regulatory requirements for commercial ITE applications.

5. Efficiency Performance: The APTH012A0X3-SRZ efficiency of 94% is equivalent to the SPM1005-ZCB at 94.2%, with negligible performance difference.

Design Consideration: The APTH012A0X3-SRZ package differs from the SPM1005-ZCB (10-SMD Module versus 56-BLGA Module), requiring PCB layout modification. The larger physical dimensions (20.3mm x 11.4mm x 8.5mm versus 11.0mm x 9.2mm x 3.2mm) must be accommodated in board redesign.

Frequently Asked Questions (FAQ)

Q: Can the APTH012A0X3-SRZ directly replace the SPM1005-ZCB without PCB modification?

A: No. The APTH012A0X3-SRZ uses a different package type (10-SMD Module versus 56-BLGA Module) and has larger physical dimensions. PCB layout redesign is required for mechanical accommodation.

Q: What is the input voltage compatibility between these two parts?

A: The SPM1005-ZCB accepts 2.95V to 6V input. The APTH012A0X3-SRZ accepts 2.4V to 5.5V input. Both devices operate correctly within the overlapping range of 2.95V to 5.5V. Applications requiring input above 5.5V cannot use the APTH012A0X3-SRZ.

Q: Does the higher current rating of the APTH012A0X3-SRZ (12A versus 6A) affect compatibility?

A: No. Higher current capability is a superset of the original specification and does not create incompatibility. The APTH012A0X3-SRZ can deliver the required 6A output without performance degradation.

Q: Are both parts RoHS compliant?

A: Yes. The SPM1005-ZCB is ROHS3 compliant. The APTH012A0X3-SRZ is RoHS compliant. Both meet regulatory requirements for commercial applications.

Q: What is the moisture sensitivity difference between these parts?

A: The SPM1005-ZCB has MSL 3 (168 hours). The APTH012A0X3-SRZ has MSL 2A (4 weeks). The APTH012A0X3-SRZ has lower moisture sensitivity, requiring less stringent handling during storage and assembly.

Q: Can the APTH012A0X3-SRZ be used in applications requiring the exact SPM1005-ZCB form factor?

A: No. The package form factor difference precludes direct mechanical substitution. Applications with strict space constraints or existing PCB layouts designed for the 56-BLGA package require alternative solutions or board redesign.

Q: What is the power output difference between these converters?

A: At maximum output current, the SPM1005-ZCB delivers up to 21.6W (6A × 3.6V). The APTH012A0X3-SRZ delivers up to 43.2W (12A × 3.6V). The APTH012A0X3-SRZ provides greater power handling capacity.