1N5230B-T Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N5230B-T is a 4.7 V zener diode rated for 500 mW power dissipation in a DO-35 through-hole package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

1N5230B-T

Vishay General Semiconductor - Diodes DivisionIn Stock: 9051N5230B-T Datasheet

Current PartRFQ

1N5230B-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 974941N5230B-TR Datasheet

DirectRFQ

NZX4V7C,133

Nexperia USA Inc.In Stock: 20241NZX4V7C,133 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N5230B-T is determined by the following critical parameters:

Primary Substitution Criteria:

• Zener voltage: 4.7 V nominal
• Power rating: 500 mW maximum
• Package type: DO-35 through-hole axial configuration
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

Acceptable Variation Parameters:

• Tolerance: ±5% or tighter (±2% acceptable)
• Impedance: Maximum 1900 Ohms (lower values acceptable)
• Reverse leakage current: 5 µA @ 2 V or lower
• Forward voltage: 1.1 V @ 200 mA or lower

Substitute parts must maintain identical zener voltage and power rating while meeting or exceeding electrical performance specifications. Package compatibility and through-hole mounting are mandatory requirements.

Parameter Comparison

Engineering Selection Recommendations

1N5230B-TR (Vishay General Semiconductor - Diodes Division)

The 1N5230B-TR is the direct equivalent to the 1N5230B-T. Both components are manufactured by Vishay and share identical electrical specifications. The primary distinction is product status: the 1N5230B-TR is active with substantial inventory availability (97,389 pieces), whereas the 1N5230B-T is obsolete. The 1N5230B-TR is supplied in cut tape packaging and maintains full ROHS3 compliance. This substitute is the preferred choice for direct replacement in existing designs.

NZX4V7C,133 (Nexperia USA Inc.)

The NZX4V7C,133 is a manufacturer-recommended alternative from Nexperia. This component meets all critical substitution criteria with identical zener voltage (4.7 V) and power rating (500 mW). The NZX4V7C,133 offers improved electrical performance characteristics: tighter tolerance (±2% versus ±5%), lower impedance (100 Ohms versus 1900 Ohms), and reduced reverse leakage current (3 µA versus 5 µA). Operating temperature range is specified as -55°C to 175°C. The component is active with 20,200 pieces in inventory and maintains ROHS3 compliance. Selection of this substitute is appropriate when enhanced performance specifications are beneficial to circuit design.

Both substitute parts are suitable for applications requiring the 1N5230B-T. Selection between them depends on design requirements, inventory preferences, and performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5230B-TR be used as a direct replacement for the 1N5230B-T?

A: Yes. The 1N5230B-TR is electrically and mechanically identical to the 1N5230B-T. Both components feature 4.7 V zener voltage, 500 mW power rating, ±5% tolerance, and DO-35 through-hole packaging. The primary difference is product status and packaging format (cut tape versus bulk).

Q: What are the key differences between the 1N5230B-TR and NZX4V7C,133?

A: Both components share the same zener voltage (4.7 V) and power rating (500 mW). The NZX4V7C,133 offers superior electrical performance: ±2% tolerance (tighter than ±5%), 100 Ohms impedance (lower than 1900 Ohms), and 3 µA reverse leakage (lower than 5 µA). The NZX4V7C,133 also specifies an operating temperature range of -55°C to 175°C. Both are ROHS3 compliant and use DO-35 through-hole packaging.

Q: Are all substitute parts compatible with the original 1N5230B-T circuit design?

A: Yes. All substitute parts maintain the same zener voltage, power rating, and through-hole DO-35 package configuration. Electrical performance of the substitutes meets or exceeds the original specification. No circuit modifications are required for substitution.

Q: Does impedance difference affect circuit performance?

A: Impedance values provided (1900 Ohms for 1N5230B-T, 19 Ohms for 1N5230B-TR, 100 Ohms for NZX4V7C,133) represent maximum dynamic impedance at specified test conditions. Lower impedance values indicate better voltage regulation characteristics. Substitutes with lower impedance provide equal or improved performance in voltage regulation applications.

Q: What is the significance of tolerance differences?

A: The 1N5230B-T and 1N5230B-TR specify ±5% tolerance, while the NZX4V7C,133 specifies ±2% tolerance. Tighter tolerance (±2%) provides more precise zener voltage control. For applications requiring strict voltage regulation, the NZX4V7C,133 offers superior performance. For general-purpose applications, both tolerance levels are acceptable.

Q: Are there any temperature rating considerations?

A: The 1N5230B-T specifies maximum operating temperature of 175°C. The 1N5230B-TR does not specify an operating temperature range in the provided data. The NZX4V7C,133 specifies -55°C to 175°C operating range. For applications requiring extended low-temperature operation, the NZX4V7C,133 is the appropriate selection.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All substitute parts (1N5230B-TR and NZX4V7C,133) are ROHS3 compliant with moisture sensitivity level 1 (unlimited). Compliance status is identical to the original 1N5230B-T component.