SA10ARL Transient Voltage Suppressor - Equivalent & Substitute Parts

Part Overview

The SA10ARL is a unidirectional Zener-type transient voltage suppressor (TVS) diode in axial through-hole packaging, designed for general-purpose overvoltage protection applications. Manufactured by onsemi under the MiniMosorb™ series, this component has reached obsolete product status. Finding equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

SA10ARL

onsemiIn Stock: 1004SA10ARL Datasheet

Current PartRFQ

SA10A

Taiwan Semiconductor CorporationIn Stock: 2322SA10A Datasheet

DirectRFQ

1N8153

Microchip TechnologyIn Stock: 10521N8153 Datasheet

SimilarRFQ

SA10A-TP

Micro Commercial CoIn Stock: 855SA10A-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA10ARL are classified based on electrical parameter compatibility within the following criteria:

Primary Substitution Parameters:

• Voltage - Reverse Standoff (Typ): 10V
• Voltage - Clamping (Max) @ Ipp: 17V (±0.9V tolerance acceptable)
• Current - Peak Pulse (10/1000µs): ≥29.4A
• Power - Peak Pulse: ≥500W
• Package / Case: DO-204AC, DO-15, or Axial
• Mounting Type: Through Hole
• Type: Zener, Unidirectional

Direct Substitutes maintain all primary electrical parameters and package specifications. Similar Substitutes meet the core voltage and current protection requirements but may have variations in peak pulse current or power dissipation ratings.

Parameter Comparison

Engineering Selection Recommendations

SA10A (Direct Substitute - Recommended)

SA10A from Taiwan Semiconductor Corporation is the primary direct substitute for SA10ARL. It maintains identical electrical specifications (10V standoff, 17V clamping, 30A peak pulse current, 500W power dissipation) and package compatibility (DO-204AC/DO-15 axial). SA10A holds Active product status and is ROHS3 compliant, providing superior long-term availability and regulatory compliance compared to the obsolete SA10ARL. Operating temperature range extends to 175°C, exceeding the original 150°C specification.

SA10A-TP (Direct Substitute - Alternative)

SA10A-TP from Micro Commercial Co provides equivalent electrical performance to SA10A with identical voltage and current ratings. Available in Tape & Reel packaging, this variant is suitable for automated assembly processes. ROHS3 compliance and Active product status ensure supply chain continuity. Operating temperature specification reaches 175°C.

1N8153 (Similar Substitute - Limited Application)

1N8153 from Microchip Technology meets the core voltage protection requirements (10V standoff, 16.9V clamping) but operates at reduced peak pulse current (8.88A) and power dissipation (150W). This part is suitable only for applications where the SA10ARL's 29.4A peak pulse current is not required. Axial package compatibility is maintained. RoHS non-compliance status matches the original part.

Frequently Asked Questions (FAQ)

Q: Can SA10A directly replace SA10ARL in existing designs?

A: Yes. SA10A maintains all critical electrical parameters: 10V reverse standoff voltage, 17V clamping voltage, and 30A peak pulse current (exceeding the original 29.4A specification). Package compatibility (DO-204AC/DO-15 axial through-hole) is identical. The extended operating temperature range (-55°C to 175°C versus -55°C to 150°C) provides additional design margin.

Q: What is the difference between SA10A and SA10A-TP?

A: Both parts are electrically identical with matching voltage and current specifications. The primary difference is packaging: SA10A is supplied in standard form, while SA10A-TP is supplied in Tape & Reel format optimized for automated pick-and-place assembly. Selection depends on manufacturing process requirements.

Q: Is 1N8153 suitable as a substitute for all SA10ARL applications?

A: No. 1N8153 is limited to applications where peak pulse current does not exceed 8.88A and power dissipation does not exceed 150W. The original SA10ARL specification of 29.4A peak pulse current and 500W power dissipation cannot be met by 1N8153. Verify application requirements before selection.

Q: Does RoHS compliance affect substitution decisions?

A: RoHS compliance status should be evaluated against end-product regulatory requirements. SA10A and SA10A-TP are ROHS3 compliant, providing compliance for products subject to RoHS directives. SA10ARL and 1N8153 are RoHS non-compliant and may not be suitable for regulated applications.

Q: Are there package considerations when substituting these parts?

A: All substitute parts maintain through-hole axial packaging compatible with SA10ARL. SA10A and SA10A-TP are available in DO-204AC (DO-15) specifications. 1N8153 is supplied in standard axial format. PCB footprints and lead spacing remain consistent across all options.

Q: What is the operating temperature difference between SA10ARL and its substitutes?

A: SA10ARL operates from -55°C to 150°C (junction temperature). SA10A, SA10A-TP, and 1N8153 all extend the upper limit to 175°C, providing 25°C additional thermal margin. This enhancement supports designs with higher ambient or self-heating conditions.