BZX79-B47,113 Equivalent & Substitute Parts

Part Overview

The BZX79-B47,113 is an active zener diode manufactured by Nexperia USA Inc., rated at 47 V nominal zener voltage with 400 mW maximum power dissipation. This through-hole component operates across a temperature range of -65°C to 200°C and is packaged in the DO-204AH/DO-35 axial configuration. The device maintains ±2% voltage tolerance and is ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining through-hole mounting compatibility and active product status.

Substiute Parts

BZX79-B47,113

Nexperia USA Inc.In Stock: 1083BZX79-B47,113 Datasheet

Current PartRFQ

BZT03C47-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 16366BZT03C47-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZX79-B47,113 is determined by the following criteria:

Primary Electrical Parameters:

• Zener voltage rating of 47 V nominal
• Through-hole axial mounting configuration
• Active product status
• ROHS3 compliance

Secondary Compatibility Factors:

• Power dissipation capability equal to or exceeding 400 mW
• Operating temperature range encompassing the application requirements
• Voltage tolerance within acceptable circuit design margins
• Reverse leakage characteristics suitable for the intended application

The BZT03C47-TR qualifies as a substitute based on matching zener voltage (47 V), through-hole axial mounting, active status, and ROHS3 compliance. The substitute exhibits higher power dissipation (1.3 W) and lower impedance (45 Ohms), which are compatible with applications designed for the BZX79-B47,113.

Parameter Comparison

Engineering Selection Recommendations

BZX79-B47,113 Primary Selection: Select the BZX79-B47,113 when the application requires the tighter voltage tolerance of ±2%, lower impedance characteristics (170 Ohms maximum), or when the DO-204AH/DO-35 package footprint is specifically required. This component is ROHS3 compliant and maintains active product status.

BZT03C47-TR Substitute Selection: The BZT03C47-TR serves as a functional substitute when higher power dissipation capability (1.3 W versus 400 mW) is beneficial or when the SOD-57 axial package is compatible with the circuit layout. This component is also ROHS3 compliant with active product status. The wider voltage tolerance (±6.38%) and higher reverse leakage current must be evaluated against circuit design specifications.

Both components maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status, supporting equivalent regulatory and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the BZT03C47-TR directly replace the BZX79-B47,113 in any application?

A: Direct substitution depends on circuit tolerance requirements. Both devices share the 47 V zener voltage rating and through-hole axial mounting. However, the BZT03C47-TR exhibits wider voltage tolerance (±6.38% versus ±2%), higher reverse leakage current (1 µA @ 36 V versus 50 nA @ 32.9 V), and lower impedance (45 Ohms versus 170 Ohms). Applications with strict voltage regulation requirements may not accept the wider tolerance of the substitute.

Q: What are the package differences between these components?

A: The BZX79-B47,113 uses the DO-204AH/DO-35 axial package, while the BZT03C47-TR uses the SOD-57 axial package. Both are through-hole axial configurations suitable for PCB mounting, but physical dimensions differ. Verify PCB footprint compatibility before substitution.

Q: Does the higher power rating of the BZT03C47-TR affect circuit performance?

A: The BZT03C47-TR's 1.3 W power rating exceeds the BZX79-B47,113's 400 mW rating. This higher capability does not negatively affect circuits designed for 400 mW operation. The substitute can handle greater power dissipation without degradation, provided thermal management remains adequate.

Q: Are both components compliant with current regulatory standards?

A: Both the BZX79-B47,113 and BZT03C47-TR are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Both maintain unlimited moisture sensitivity (MSL 1) and active product status.

Q: How do the impedance differences impact circuit design?

A: The BZX79-B47,113 has maximum impedance of 170 Ohms, while the BZT03C47-TR has 45 Ohms. Lower impedance in the substitute results in better voltage regulation and reduced output impedance. Applications sensitive to impedance characteristics should evaluate this parameter against circuit specifications.