DL5265B-TP Equivalent & Substitute Parts

Part Overview

The DL5265B-TP is a Zener diode rated at 62 V nominal voltage with 500 mW power dissipation, manufactured by Micro Commercial Co in a Mini MELF surface mount package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The diode operates across a temperature range of -65°C to 175°C and complies with RoHS3 and REACH standards.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	62 V
Tolerance	±5%
Power - Max	500 mW
Impedance (Max)	185 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 47 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DL5265B-TP is determined by the following critical parameters:

Electrical Parameters (Must Match):

Voltage - Zener (Nom): 62 V
Tolerance: ±5%
Power - Max: 500 mW
Impedance (Max): 185 Ohms
Current - Reverse Leakage @ Vr: 100 nA @ 47 V

Mechanical Parameters (Package Compatibility):

Mounting Type: Surface Mount
Package / Case: DO-213AC, MINI-MELF, SOD-80 (or equivalent surface mount packages)

Compliance Parameters:

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1 - Package Variant Substitutes: Parts with identical electrical specifications but different surface mount package configurations (SOD-123 vs. Mini MELF). These require PCB layout verification for footprint compatibility.

Category 2 - Parametric Equivalents: Parts from alternative manufacturers with matching electrical specifications and compatible package types. These maintain full functional equivalence.

Parameter Comparison

Parameter	DL5265B-TP	MMSZ5265B-TP	TZM5265B-GS08	TZM5265B-GS18	ZMM5265B-7
Manufacturer	Micro Commercial Co	Micro Commercial Co	Vishay General Semiconductor	Vishay General Semiconductor	Diodes Incorporated
Voltage - Zener (Nom)	62 V	62 V	62 V	62 V	62 V
Tolerance	±5%	±5%	±5%	±5%	±5%
Power - Max	500 mW	500 mW	500 mW	500 mW	500 mW
Impedance (Max)	185 Ohms	185 Ohms	185 Ohms	185 Ohms	185 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 47 V	100 nA @ 47 V	100 nA @ 47 V	100 nA @ 47 V	100 nA @ 47 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA	Not Specified	1.1 V @ 200 mA	1.1 V @ 200 mA	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C	-55°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
Package / Case	DO-213AC, MINI-MELF, SOD-80	SOD-123	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
Product Status	Obsolete	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Affected

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

The TZM5265B-GS08 and TZM5265B-GS18 from Vishay General Semiconductor are the preferred substitutes. Both parts maintain identical electrical specifications to the DL5265B-TP, including the 62 V nominal voltage, 500 mW power rating, 185 Ohms maximum impedance, and 1.1 V forward voltage at 200 mA. Both are classified as active products with full RoHS3 compliance and REACH unaffected status. The operating temperature range of -65°C to 175°C matches the original part exactly. The Mini MELF package configuration (SOD-80) is identical to the DL5265B-TP, eliminating PCB layout modifications.

Secondary Substitute (Package Variant):

The MMSZ5265B-TP from Micro Commercial Co is an active product with matching electrical specifications but uses a SOD-123 package instead of Mini MELF. This part is suitable only when PCB footprint compatibility with SOD-123 is confirmed. The operating temperature range is reduced to -55°C to 150°C, which may limit use in applications requiring the full -65°C to 175°C range. Forward voltage specification is not provided for this variant.

Obsolete Alternative (Not Recommended for New Designs):

The ZMM5265B-7 from Diodes Incorporated is classified as obsolete and carries REACH affected status, making it unsuitable for new design implementations. While electrical specifications match the original part, the forward voltage specification of 1.5 V at 200 mA differs from the 1.1 V specification of the DL5265B-TP and preferred substitutes.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5265B-TP be used as a direct replacement for DL5265B-TP?

A: MMSZ5265B-TP is electrically equivalent but uses a different package (SOD-123 vs. Mini MELF). Direct replacement requires PCB footprint compatibility verification. Additionally, the operating temperature range is reduced from -65°C to 175°C to -55°C to 150°C.

Q: What is the difference between TZM5265B-GS08 and TZM5265B-GS18?

A: Both parts are parametrically identical with matching electrical specifications and operating temperature ranges. The designation suffix (-GS08 vs. -GS18) indicates different tape and reel configurations for automated assembly. Selection depends on manufacturing equipment compatibility.

Q: Are TZM5265B-GS08 and TZM5265B-GS18 pin-compatible with DL5265B-TP?

A: Yes. All three parts use the Mini MELF package (DO-213AC, SOD-80) with identical pin configurations and PCB footprints.

Q: Why is ZMM5265B-7 not recommended as a substitute?

A: ZMM5265B-7 is classified as obsolete and carries REACH affected status. Additionally, the forward voltage specification of 1.5 V at 200 mA exceeds the 1.1 V specification of the original part and preferred substitutes, which may affect circuit performance in forward-biased applications.

Q: What compliance certifications should I verify when selecting a substitute?

A: All recommended substitutes maintain RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. Verify REACH status for your application requirements. The TZM5265B-GS08 and TZM5265B-GS18 are REACH unaffected, making them suitable for all regulatory environments.

Q: Can I use MMSZ5265B-TP in applications requiring the full -65°C to 175°C operating range?

A: No. MMSZ5265B-TP is rated only to -55°C to 150°C. For applications requiring the full temperature range, use TZM5265B-GS08 or TZM5265B-GS18.

Q: Are there inventory considerations when selecting a substitute?

A: TZM5265B-GS08 has 2590 units in stock, TZM5265B-GS18 has 695 units, MMSZ5265B-TP has 631 units, and ZMM5265B-7 has 2100 units. Inventory levels should be evaluated against procurement timelines and supply chain requirements.

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