1N4706-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N4706-TP is a 19 V, 500 mW Zener diode in DO-35 axial through-hole packaging manufactured by Micro Commercial Co. This component is classified as obsolete, indicating discontinued production and limited availability from original sources. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring 19 V Zener regulation in compact through-hole form factors.

Substiute Parts

1N4706-TP

Micro Commercial CoIn Stock: 7561N4706-TP Datasheet

Current PartRFQ

1N4706 TR PBFREE

Central Semiconductor CorpIn Stock: 9451N4706 TR PBFREE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N4706-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Zener voltage: 19 V nominal
• Power dissipation rating: 500 mW maximum
• Voltage tolerance: ±5%
• Reverse leakage current: 50 nA @ 14.4 V
• Forward voltage: 1.5 V @ 100 mA
• Package type: DO-35 axial through-hole
• RoHS compliance: ROHS3 Compliant

Substitute parts must maintain identical electrical specifications and physical packaging to ensure direct functional replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The 1N4706 TR PBFREE manufactured by Central Semiconductor Corp is a direct electrical and mechanical equivalent to the obsolete 1N4706-TP. Both components share identical Zener voltage, power rating, tolerance, leakage current, and forward voltage specifications. Both are packaged in DO-35 axial through-hole configuration and maintain ROHS3 compliance.

The primary distinction is product status: the 1N4706-TP is obsolete, while the 1N4706 TR PBFREE is active production. The substitute part offers an extended operating temperature range (-65°C to 200°C versus 200°C maximum for the original), providing additional thermal margin. Packaging format differs (Tape & Reel versus bulk), which affects procurement and assembly processes but does not impact electrical performance or circuit compatibility.

Selection of the 1N4706 TR PBFREE eliminates obsolescence risk and ensures continued component availability for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N4706 TR PBFREE be used as a direct replacement for the 1N4706-TP in existing designs?

A: Yes. Both components meet identical electrical specifications: 19 V Zener voltage, 500 mW power rating, ±5% tolerance, and DO-35 axial through-hole packaging. No circuit modifications or PCB changes are required.

Q: What does "TR PBFREE" designation indicate?

A: TR denotes Tape & Reel packaging format, suitable for automated assembly processes. PBFREE indicates lead-free construction, consistent with RoHS3 compliance requirements.

Q: Are there differences in thermal performance between these parts?

A: The 1N4706 TR PBFREE specifies an extended operating temperature range (-65°C to 200°C) compared to the 1N4706-TP (up to 200°C). Both maintain identical power dissipation ratings and thermal characteristics within their respective operating ranges.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and bulk packaging formats do not alter electrical characteristics. Format selection depends on assembly methodology and procurement requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1N4706-TP and 1N4706 TR PBFREE are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Why is the original part listed as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The 1N4706 TR PBFREE from Central Semiconductor Corp provides continued availability of equivalent 19 V, 500 mW Zener diode functionality in the same package.