DL5232B-TP Equivalent & Substitute Parts

Part Overview

The DL5232B-TP is a Zener diode rated at 5.6 V nominal with 500 mW power dissipation in a Mini MELF surface mount package. This component is classified as obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The DL5232B-TP remains available in inventory (5200 pcs), but active alternatives ensure long-term supply chain continuity and design flexibility.

Substiute Parts

DL5232B-TP

Micro Commercial CoIn Stock: 5303DL5232B-TP Datasheet

Current PartRFQ

MMSZ5232B-TP

Micro Commercial CoIn Stock: 6240MMSZ5232B-TP Datasheet

SimilarRFQ

DL5232B-TP

Micro Commercial CoIn Stock: 5303DL5232B-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DL5232B-TP is determined by electrical parameter equivalence and compliance alignment. The primary substitute, MMSZ5232B-TP, maintains identical zener voltage (5.6 V), tolerance (±5%), maximum power rating (500 mW), impedance specification (11 Ohms maximum), and reverse leakage current (5 µA @ 3 V). Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status.

The critical distinction between these parts is packaging format: DL5232B-TP uses Mini MELF (DO-213AC, SOD-80), while MMSZ5232B-TP uses SOD-123. This packaging difference affects board layout, footprint requirements, and assembly compatibility. The MMSZ5232B-TP is currently active in production, whereas the DL5232B-TP is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The MMSZ5232B-TP is the active substitute for the obsolete DL5232B-TP. Both parts share identical electrical specifications for zener voltage, power rating, impedance, and leakage current, ensuring functional equivalence in circuit operation.

Selection between these parts depends on packaging requirements. The DL5232B-TP Mini MELF package is suitable for applications requiring compact form factors with specific board layout constraints. The MMSZ5232B-TP SOD-123 package provides a smaller footprint and is the recommended choice for new designs due to its active production status.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, supporting deployment in standard manufacturing environments. The DL5232B-TP supports a wider operating temperature range (-65°C to 175°C) compared to MMSZ5232B-TP (-55°C to 150°C); applications requiring extended low-temperature operation below -55°C must retain the DL5232B-TP or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5232B-TP directly replace DL5232B-TP in existing designs?

A: Electrical substitution is valid; both parts have identical zener voltage (5.6 V), power rating (500 mW), and leakage specifications. However, package differences require PCB layout modification. DL5232B-TP uses Mini MELF (DO-213AC) while MMSZ5232B-TP uses SOD-123, necessitating different footprints and assembly procedures.

Q: What are the key electrical parameters that must match for substitution?

A: Zener voltage (5.6 V), tolerance (±5%), maximum power dissipation (500 mW), impedance (11 Ohms maximum), and reverse leakage current (5 µA @ 3 V) must remain constant. These parameters define functional equivalence in voltage regulation and protection circuits.

Q: Are there temperature range limitations when substituting?

A: Yes. DL5232B-TP operates from -65°C to 175°C, while MMSZ5232B-TP operates from -55°C to 150°C. Applications requiring operation below -55°C must use DL5232B-TP or identify alternative components rated for extended low-temperature ranges.

Q: Do both parts meet current compliance requirements?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). Compliance status is equivalent for standard manufacturing and deployment environments.

Q: Why is DL5232B-TP classified as obsolete?

A: Obsolescence reflects discontinuation of production by the manufacturer. MMSZ5232B-TP is the active production equivalent, ensuring continued availability and supply chain support for new designs.

Q: What packaging considerations apply to substitution?

A: Mini MELF (DO-213AC, SOD-80) and SOD-123 packages have different physical dimensions and land patterns. PCB redesign is required when transitioning between these packages. SOD-123 offers smaller overall dimensions suitable for space-constrained applications.