SA130-B Equivalent & Substitute Parts

Part Overview

The SA130-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for transient overvoltage protection in telecom applications. This component features a 130V reverse standoff voltage with a 209V maximum clamping voltage and 2.4A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package.

The SA130-B is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

SA130-B

Littelfuse Inc.In Stock: 725SA130-B Datasheet

Current PartRFQ

SA130A

Fairchild SemiconductorIn Stock: 1330SA130A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by electrical parameter equivalence and mechanical compatibility. The SA130-B can be substituted with parts that meet the following criteria:

Critical Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 130V
• Voltage - Clamping (Max) @ Ipp: 209V
• Current - Peak Pulse (10/1000µs): 2.4A
• Power - Peak Pulse: 500W

Mechanical Requirements:

• Unidirectional configuration (1 channel)
• Through-hole mounting
• DO-204AC (DO-15) axial package

Functional Characteristics:

• Zener-type TVS diode
• Transient voltage suppression capability

Parts meeting these specifications are electrically and mechanically interchangeable with the SA130-B in circuit applications requiring 130V standoff protection with 209V clamping performance.

Parameter Comparison

*Operating temperature range: SA130A has a minimum operating temperature of -55°C versus -65°C for SA130-B. Applications requiring operation below -55°C require evaluation.

Engineering Selection Recommendations

SA130A (Fairchild Semiconductor) - Direct Substitute

The SA130A is a direct electrical and mechanical equivalent to the SA130-B. All critical electrical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and peak pulse power—are identical. Both components are packaged in DO-204AC (DO-15) axial through-hole format and are classified as obsolete products.

Both parts carry RoHS compliance certifications (SA130-B: RoHS Compliant; SA130A: ROHS3 Compliant), confirming environmental and hazardous substance restrictions are met.

The primary consideration is the operating temperature range. The SA130A operates from -55°C to 175°C, while the SA130-B operates from -65°C to 175°C. For applications requiring operation at temperatures below -55°C, the SA130-B remains the specified component. For applications within the -55°C to 175°C range, the SA130A provides full functional equivalence.

Both parts are classified under ECCN EAR99 and HTSUS 8541.10.0080, indicating identical export and tariff classifications.

Frequently Asked Questions (FAQ)

Q: Can SA130A replace SA130-B in all applications?

A: The SA130A is electrically and mechanically equivalent to the SA130-B for all applications operating within the temperature range of -55°C to 175°C. Applications requiring operation below -55°C must use the SA130-B, as the SA130A minimum operating temperature is -55°C.

Q: Are the electrical characteristics identical between SA130-B and SA130A?

A: Yes. Both components have identical voltage ratings (130V reverse standoff, 144V minimum breakdown, 209V maximum clamping), identical peak pulse current (2.4A), and identical peak pulse power (500W). Both are unidirectional Zener-type TVS diodes.

Q: Is the package the same for both parts?

A: Yes. Both SA130-B and SA130A use the DO-204AC (DO-15) axial through-hole package. They are mechanically interchangeable on printed circuit boards designed for this package format.

Q: What is the significance of the different RoHS compliance levels?

A: SA130-B carries RoHS Compliant certification, while SA130A carries ROHS3 Compliant certification. Both certifications confirm compliance with hazardous substance restrictions. ROHS3 represents a more recent revision of the RoHS directive. Both parts meet current environmental compliance requirements.

Q: Are there any supply chain considerations between these parts?

A: Both SA130-B and SA130A are classified as obsolete products. SA130A has higher documented inventory (1300 pcs) compared to SA130-B (684 pcs). For new designs or long-term production requirements, consultation with component distributors is necessary to confirm current availability.

Q: Can these parts be used interchangeably on existing circuit boards?

A: Yes, provided the application operates within the -55°C to 175°C temperature range. Both parts are pin-compatible and functionally equivalent in the DO-204AC (DO-15) axial package. No circuit modifications are required.