XC6121A616ER-G Equivalent & Substitute Parts

Part Overview

The XC6121A616ER-G is a single-channel supervisor integrated circuit manufactured by Torex Semiconductor Ltd, classified as a Power Management (PMIC) device. This watchdog circuit monitors voltage levels and provides active-low reset output through an open-drain or open-collector configuration. The device operates across the industrial temperature range of -40°C to 85°C and is packaged in a 6-UFDFN surface-mount format with exposed pad.

The XC6121A616ER-G maintains Active product status with 1115 units currently in stock. Equivalent substitute parts are necessary to address supply chain requirements, inventory optimization, or design flexibility while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

XC6121A616ER-G

Torex Semiconductor LtdIn Stock: 1141XC6121A616ER-G Datasheet

Current PartRFQ

XC6121D616ER-G

Torex Semiconductor LtdIn Stock: 821XC6121D616ER-G Datasheet

Parametric EquivalentRFQ

XC6121E616ER-G

Torex Semiconductor LtdIn Stock: 3484XC6121E616ER-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the XC6121A616ER-G are determined by strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Electrical Equivalence Requirements:

• Single-channel voltage monitoring capability
• 1.6V voltage threshold setting
• Open-drain or open-collector output configuration
• Active-low reset logic
• 1.6s typical reset timeout duration
• Operating temperature range of -40°C to 85°C

Mechanical and Packaging Equivalence Requirements:

• 6-UFDFN package with exposed pad
• 6-USPC (1.8x2) supplier device package
• Surface-mount mounting type
• Tape & Reel packaging format

Compliance and Regulatory Equivalence:

• ROHS3 compliance
• MSL Level 1 (Unlimited moisture sensitivity)
• REACH Unaffected status
• EAR99 export classification

All substitute parts listed below meet these criteria without exception and are manufactured by Torex Semiconductor Ltd within the XC6121 base product family.

Parameter Comparison

Engineering Selection Recommendations

All three parts—XC6121A616ER-G, XC6121D616ER-G, and XC6121E616ER-G—are functionally and mechanically equivalent and maintain identical electrical specifications. Selection between these parts should be based on the following factors:

Product Status and Availability: All three parts maintain Active product status with Torex Semiconductor Ltd, ensuring long-term availability and continued manufacturing support.

Compliance and Regulatory Alignment: All substitute parts carry identical compliance certifications: ROHS3 compliance, MSL Level 1, REACH Unaffected status, and EAR99 export classification. No compliance trade-offs exist between any of these options.

Inventory Considerations: XC6121E616ER-G offers the highest current inventory level at 3440 units, followed by XC6121A616ER-G at 1115 units, and XC6121D616ER-G at 779 units. Inventory levels may influence selection for high-volume procurement or extended supply chain planning.

Design Implementation: No design modifications are required when substituting between these parts. Pin configuration, package footprint, electrical performance, and thermal characteristics remain identical across all three variants.

Frequently Asked Questions (FAQ)

Q: Can XC6121D616ER-G or XC6121E616ER-G be used as direct replacements for XC6121A616ER-G without circuit modification?

A: Yes. All three parts are parametrically equivalent across electrical and mechanical specifications. No circuit modifications, PCB layout changes, or firmware adjustments are required. The parts are pin-compatible and functionally interchangeable.

Q: Are there any differences in the 6-UFDFN package dimensions or pin spacing between these parts?

A: No. All three parts use the identical 6-UFDFN Exposed Pad package with 6-USPC (1.8x2) supplier device package designation. Package dimensions, pin pitch, and exposed pad configuration are identical.

Q: Do all three parts support the same operating temperature range?

A: Yes. All parts operate across -40°C to 85°C (TA), meeting identical thermal specifications for industrial applications.

Q: What is the significance of the different part number suffixes (A, D, E)?

A: The suffixes indicate internal manufacturing variants within the XC6121 base product family. These variants do not affect electrical performance, output characteristics, or package specifications. All variants with the 616ER-G designation share identical 1.6V threshold and 1.6s reset timeout specifications.

Q: Are all three parts RoHS3 compliant?

A: Yes. XC6121A616ER-G, XC6121D616ER-G, and XC6121E616ER-G all carry ROHS3 compliance certification and are suitable for applications requiring RoHS compliance.

Q: Which part should be selected for new design implementations?

A: From a technical standpoint, all three parts are equivalent. Selection may be based on current inventory availability, supplier lead times, or procurement preferences. XC6121E616ER-G currently offers the highest inventory level.

Q: Is the MSL Level 1 rating identical across all three parts?

A: Yes. All three parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no moisture sensitivity restrictions during storage or handling.