2M47Z Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M47Z is an active-status zener diode manufactured by Taiwan Semiconductor Corporation, rated for 47 V nominal zener voltage with 2 W maximum power dissipation. This component is packaged in DO-204AC (DO-15) axial through-hole configuration and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design optimization, or application-specific requirements within the allowed parameter ranges for this diode category.

Substiute Parts

2M47Z

Taiwan Semiconductor CorporationIn Stock: 8882M47Z Datasheet

Current PartRFQ

1N5368B-TP

Micro Commercial CoIn Stock: 43671N5368B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2M47Z with the 1N5368B-TP is permissible based on the following electrical and mechanical criteria:

Critical Matching Parameters:

• Zener voltage (Nom): Both rated at 47 V
• Voltage tolerance: Both ±5%
• Reverse leakage current: Both 500 nA @ 35.8 V
• Package type: Both DO-15 axial through-hole configuration
• RoHS compliance: Both ROHS3 compliant
• Regulatory status: Both REACH unaffected, EAR99 classification

Allowable Variations:

• Power rating: 1N5368B-TP rated 5 W (exceeds 2M47Z 2 W requirement)
• Impedance: 1N5368B-TP 25 Ohms (lower than 2M47Z 40 Ohms maximum)
• Operating temperature upper limit: 1N5368B-TP 150°C (lower than 2M47Z 175°C)

The 1N5368B-TP provides equivalent or superior electrical performance within the specified zener voltage class and maintains mechanical compatibility through identical axial through-hole packaging.

Parameter Comparison

Engineering Selection Recommendations

2M47Z Selection Criteria:

• Primary choice when operating temperature range of -55°C to 175°C is required
• Applications requiring maximum impedance specification of 40 Ohms
• Designs with 2 W power dissipation ceiling

1N5368B-TP Selection Criteria:

• Suitable for applications with operating temperature range of -55°C to 150°C
• Designs benefiting from higher power dissipation capability (5 W)
• Applications where lower impedance (25 Ohms) provides performance advantage
• Both components maintain ROHS3 compliance and active product status

Both parts are suitable for 47 V zener voltage applications with ±5% tolerance and identical reverse leakage characteristics. Selection between these parts depends on specific thermal and power requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can 1N5368B-TP directly replace 2M47Z in all applications?

A: Direct substitution is permissible when the application operating temperature does not exceed 150°C and the circuit design accommodates the higher power rating (5 W) and lower impedance (25 Ohms) of the 1N5368B-TP. Both components share identical zener voltage (47 V), tolerance (±5%), and reverse leakage specifications.

Q: What is the significance of the impedance difference between these parts?

A: The 1N5368B-TP impedance of 25 Ohms is lower than the 2M47Z specification of 40 Ohms maximum. Lower impedance typically results in improved voltage regulation characteristics. This difference is permissible for substitution purposes.

Q: Are the packaging dimensions identical between 2M47Z and 1N5368B-TP?

A: Both components use DO-15 axial through-hole packaging. Physical dimensions and lead spacing are compatible for direct board-level substitution.

Q: What compliance certifications apply to both parts?

A: Both 2M47Z and 1N5368B-TP are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: Does the higher power rating of 1N5368B-TP affect circuit performance?

A: The 5 W rating of 1N5368B-TP represents maximum power dissipation capability. Circuit performance is determined by actual power dissipation, which is application-dependent. The higher rating does not negatively affect performance in applications designed for 2 W operation.

Q: What is the temperature operating range limitation for 1N5368B-TP?

A: The 1N5368B-TP maximum operating temperature is 150°C, compared to 175°C for the 2M47Z. Applications requiring operation above 150°C must use the 2M47Z.