SM1612C/TR13 Equivalent & Substitute Parts

Part Overview

The SM1612C/TR13 is an 8-channel bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology. This surface-mount component operates with a 12V reverse standoff voltage and provides 24V clamping at peak pulse current, delivering 300W peak pulse power dissipation. The device is designed for general-purpose transient protection applications and is currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific compliance requirements.

Substiute Parts

SM1612C/TR13

Microchip TechnologyIn Stock: 2039SM1612C/TR13 Datasheet

Current PartRFQ

S16C12-8

SMC Diode SolutionsIn Stock: 1308S16C12-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM1612C/TR13 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Bidirectional channel count: 8 channels
• Package type: 16-SOIC surface mount
• Reverse standoff voltage: 12V nominal
• Breakdown voltage minimum: 13.3V
• Device type: Zener TVS diode

Allowable Variation Parameters:

• Clamping voltage: Maximum 24V (substitute may be lower)
• Peak pulse current: Minimum 1A (substitute may be lower than 5A)
• Peak pulse power: Minimum 300W (substitute may be equal or lower)
• Operating temperature range: Substitute may have narrower range
• Compliance certifications: May differ based on application requirements

The substitute part S16C12-8 from SMC Diode Solutions meets the mandatory matching criteria while operating within allowable variation limits for specific applications where reduced current handling is acceptable.

Parameter Comparison

Engineering Selection Recommendations

SM1612C/TR13 Selection Criteria:

• Primary choice for general-purpose transient protection requiring 5A peak pulse current handling
• Suitable for applications operating across the full -55°C to 150°C temperature range
• Appropriate for designs where RoHS non-compliance is acceptable or not required
• Recommended when maximum clamping voltage of 24V is specified

S16C12-8 Selection Criteria:

• Suitable for Ethernet and Telecom applications with reduced transient current requirements (1A peak pulse)
• Required for designs mandating ROHS3 compliance
• Applicable to systems operating within -55°C to 125°C temperature range
• Acceptable where lower clamping voltage (19V) meets circuit protection requirements
• Appropriate when REACH compliance is a design requirement

Both parts share identical 16-SOIC packaging, channel count, and fundamental electrical characteristics. Selection between them depends on specific application current demands, compliance certifications, and operating temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can S16C12-8 directly replace SM1612C/TR13 in all applications?

A: No. The S16C12-8 has a lower peak pulse current rating (1A versus 5A) and lower clamping voltage (19V versus 24V). Direct substitution is only valid for applications where transient currents do not exceed 1A and where 19V clamping voltage provides adequate circuit protection.

Q: What is the significance of the different clamping voltages?

A: Clamping voltage determines the maximum voltage the TVS diode allows across the protected circuit during a transient event. The SM1612C/TR13 clamps at 24V maximum, while the S16C12-8 clamps at 19V maximum. Lower clamping voltage provides tighter protection but may not be suitable for circuits designed around the 24V specification.

Q: Are the packages physically identical?

A: Yes. Both parts use the 16-SOIC package with 0.154" (3.90mm) width. PCB footprints and reflow soldering profiles are compatible.

Q: What does the difference in operating temperature range mean?

A: The SM1612C/TR13 operates to 150°C junction temperature, while the S16C12-8 operates to 125°C. For applications requiring operation above 125°C, only the SM1612C/TR13 is suitable.

Q: Why does S16C12-8 have ROHS3 compliance while SM1612C/TR13 does not?

A: RoHS compliance status reflects the manufacturing process and material composition used by each manufacturer. ROHS3 compliance is required for certain regulated markets and applications. This is a manufacturing and regulatory difference, not a functional performance difference.

Q: Can I use SM1612C/TR13 in place of S16C12-8?

A: Yes, in most cases. The SM1612C/TR13 has higher current and power ratings, making it suitable for any application where S16C12-8 is specified. However, if ROHS3 compliance is mandatory, the SM1612C/TR13 cannot be used due to its non-compliant status.

Q: What applications are these parts designed for?

A: SM1612C/TR13 is specified for general-purpose transient protection. S16C12-8 is optimized for Ethernet and Telecom applications. Both provide 8-channel bidirectional protection in a single 16-pin surface-mount package.