SA16A-TP Equivalent & Substitute Parts

Part Overview

The SA16A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient protection applications. This through-hole component operates with a 16V reverse standoff voltage and provides 26V maximum clamping voltage at peak pulse current. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level rating.

Substitute parts are identified when electrical and mechanical parameters align within the allowed specifications for this TVS diode category, enabling direct functional replacement in circuit designs.

Substiute Parts

SA16A-TP

Micro Commercial CoIn Stock: 1177SA16A-TP Datasheet

Current PartRFQ

SA16A

Fairchild SemiconductorIn Stock: 4202SA16A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SA16A-TP is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 16V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 26V (exact match required)
• Current - Peak Pulse (10/1000µs): minimum 19.2A (within tolerance)
• Power - Peak Pulse: 500W (exact match required)
• Mounting Type: Through Hole (required for mechanical compatibility)
• Package / Case: DO-15 or Axial configuration (compatible form factors)
• Unidirectional Channels: 1 (single channel requirement)
• Type: Zener (TVS diode classification)

The SA16A from Fairchild Semiconductor meets these substitution criteria with matching voltage ratings, compatible peak pulse current specification, and through-hole axial packaging.

Parameter Comparison

Engineering Selection Recommendations

The SA16A from Fairchild Semiconductor qualifies as a functional substitute for the SA16A-TP based on matching electrical specifications across all critical parameters: identical voltage ratings (16V standoff, 26V clamping), compatible peak pulse current (19.2A versus 19.6A), and equivalent power dissipation capability (500W).

Both components share identical RoHS3 compliance status and through-hole axial packaging configuration, ensuring mechanical and environmental regulatory compatibility.

The primary consideration is product lifecycle status: the SA16A-TP is currently in active production, while the Fairchild SA16A is obsolete. Selection should prioritize the active SA16A-TP for new designs and long-term supply chain stability. The Fairchild substitute is applicable only for legacy system maintenance or where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the SA16A (Fairchild) directly replace the SA16A-TP (Micro Commercial Co) in existing circuits?

A: Yes, the SA16A provides electrical equivalence across all critical TVS diode parameters: 16V reverse standoff voltage, 26V clamping voltage, and 500W peak pulse power rating. Both components feature identical through-hole axial packaging and RoHS3 compliance. The 0.4A difference in peak pulse current (19.2A versus 19.6A) remains within functional tolerance for general-purpose transient protection applications.

Q: What is the impact of the operating temperature range difference between these parts?

A: The SA16A-TP operates across -55°C to 175°C (TA), while the Fairchild SA16A operates across -55°C to 150°C (TJ). For applications requiring operation above 150°C, the SA16A-TP is the required selection. For standard industrial and commercial temperature ranges, both components are functionally equivalent.

Q: Are there packaging considerations when substituting these parts?

A: Both components use DO-15 axial through-hole packaging and are mechanically compatible. No PCB layout or mechanical redesign is required for substitution.

Q: Why is the Fairchild SA16A listed as obsolete?

A: Product obsolescence reflects manufacturer lifecycle decisions and does not indicate technical inadequacy. The Fairchild SA16A remains electrically and mechanically equivalent to the active SA16A-TP for applications within its specified operating parameters.

Q: What compliance certifications apply to both parts?

A: Both the SA16A-TP and SA16A are RoHS3 compliant and carry EAR99 export classification. REACH status is unaffected for both components.