DL5260B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The DL5260B-TP is a 43 V, 500 mW Zener diode manufactured by Micro Commercial Co in a Mini MELF surface mount package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and production continuity. Equivalent parts maintain identical electrical specifications and package compatibility, while substitute parts offer functional equivalence with potential package or performance variations.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	43 V
Tolerance	±5%
Power - Max	500 mW
Impedance (Max)	93 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 33 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 DL5260B-TP is determined by the following critical parameters:

Primary Electrical Specifications:

Zener voltage: 43 V nominal
Power dissipation: 500 mW maximum
Tolerance: ±5% (or tighter)
Reverse leakage current: 100 nA @ 33 V (or lower)
Impedance: 93 Ohms maximum (or lower)

Physical and Environmental Requirements:

Surface mount technology
Operating temperature range: -65°C to 175°C minimum
RoHS3 compliance
MSL rating: 1 (Unlimited)

Package Compatibility:

Primary package: Mini MELF (DO-213AC, SOD-80)
Alternative packages: SOD-123 (MMSZ5260B-TP), DO-213AA (1N5260BUR-1)

Substitute parts are grouped by package type and product status. Parts maintaining the Mini MELF package and active product status are preferred for direct replacement. Parts with alternative packages require PCB layout modification but maintain full electrical equivalence.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Ir @ Vr (nA)	Vf @ If	Temp Range (°C)	Package	Status	RoHS
DL5260B-TP	Micro Commercial Co	43	±5%	500	93	100 @ 33V	1.1 @ 200mA	-65 ~ 175	Mini MELF	Obsolete	ROHS3
MMSZ5260B-TP	Micro Commercial Co	43	±5%	500	93	100 @ 33V	0.9 @ 10mA	-55 ~ 150	SOD-123	Active	ROHS3
1N5260BUR-1	Microchip Technology	43	±5%	500	93	100 @ 33V	1.1 @ 200mA	-65 ~ 175	DO-213AA	Active	Non-compliant
CLL5260B TR PBFREE	Central Semiconductor Corp	43	±5%	500	93	100 @ 33V	1.25 @ 200mA	-65 ~ 200	SOD-80	Active	ROHS3
CZRL5260B-G	Comchip Technology	43	±5%	500	93	100 @ 33V	1.25 @ 200mA	Not specified	SOD-80	Obsolete	ROHS3
TLZ43-GS08	Vishay General Semiconductor	43	Not specified	500	90	40 @ 38V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3
TLZ43-GS18	Vishay General Semiconductor	43	Not specified	500	90	40 @ 38V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3
TZMB43-GS08	Vishay General Semiconductor	43	±2%	500	90	100 @ 33V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3
TZMB43-GS18	Vishay General Semiconductor	43	±2%	500	90	100 @ 33V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3
TZMC43-M-08	Vishay General Semiconductor	43	±5%	500	90	100 @ 33V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3
TZMC43-M-18	Vishay General Semiconductor	43	±5%	500	90	100 @ 33V	1.5 @ 200mA	-65 ~ 175	SOD-80	Active	ROHS3

Engineering Selection Recommendations

Direct Replacement (Mini MELF Package):

CLL5260B TR PBFREE from Central Semiconductor Corp is the primary direct replacement for DL5260B-TP. Both components share identical electrical specifications (43 V, 500 mW, ±5% tolerance, 93 Ohms impedance), Mini MELF packaging, and RoHS3 compliance. CLL5260B TR PBFREE is active in production with extended operating temperature range (-65°C to 200°C) and higher inventory availability (13,093 units).

Active Alternatives with SOD-80 Package:

Vishay General Semiconductor offers multiple active alternatives in SOD-80 Mini MELF package:

TZMB43-GS08 and TZMB43-GS18: Automotive-grade (AEC-Q101) with ±2% tolerance, lower impedance (90 Ohms), and reduced reverse leakage (100 nA @ 33 V). Suitable for applications requiring tighter voltage tolerance and automotive qualification.
TZMC43-M-08 and TZMC43-M-18: Automotive-grade (AEC-Q101) with ±5% tolerance matching the original specification, 90 Ohms impedance, and full temperature range support.
TLZ43-GS08 and TLZ43-GS18: Standard-grade alternatives with 90 Ohms impedance and lower reverse leakage (40 nA @ 38 V).

Alternative Package Options:

MMSZ5260B-TP (SOD-123 package) from Micro Commercial Co maintains electrical equivalence but requires PCB layout modification. Operating temperature range is reduced to -55°C to 150°C.

1N5260BUR-1 (DO-213AA package) from Microchip Technology provides electrical equivalence with full temperature range (-65°C to 175°C) but is RoHS non-compliant.

Obsolete Parts to Avoid:

CZRL5260B-G from Comchip Technology is obsolete and should not be selected for new designs despite active inventory.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5260B-TP replace DL5260B-TP directly on the PCB?

A: No. MMSZ5260B-TP uses SOD-123 package while DL5260B-TP uses Mini MELF (SOD-80). PCB footprint modification is required. 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 TZMB43-GS08 and TZMC43-M-08?

A: Both are Vishay automotive-grade parts in SOD-80 package with identical electrical performance. TZMB43-GS08 has ±2% tolerance while TZMC43-M-08 has ±5% tolerance. Selection depends on voltage tolerance requirements for the application.

Q: Is 1N5260BUR-1 suitable for new designs?

A: 1N5260BUR-1 provides electrical equivalence and full temperature range support but is RoHS non-compliant. Use only in applications where RoHS compliance is not required. For RoHS-compliant designs, select CLL5260B TR PBFREE or Vishay alternatives.

Q: Why do some substitute parts show lower reverse leakage current?

A: TLZ43-GS08 and TLZ43-GS18 specify 40 nA @ 38 V compared to the original 100 nA @ 33 V. These represent superior performance characteristics and are fully compatible with the original specification.

Q: Can I use CZRL5260B-G as a replacement?

A: CZRL5260B-G is obsolete and should not be selected for new designs or production. Use active alternatives such as CLL5260B TR PBFREE or Vishay TZMB43/TZMC43 series instead.

Q: What is the advantage of automotive-grade parts (TZMB43, TZMC43)?

A: Automotive-grade parts carry AEC-Q101 qualification, indicating compliance with automotive reliability standards. These parts are suitable for automotive and high-reliability applications requiring enhanced quality assurance.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts except 1N5260BUR-1 are RoHS3 compliant. For applications requiring RoHS compliance, exclude 1N5260BUR-1 from selection.

Q: What is the difference between tape reel packaging variants (GS08 vs GS18)?

A: GS08 and GS18 designations indicate different tape reel configurations for automated assembly. Both variants are electrically identical. Selection depends on assembly equipment compatibility and supply chain availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message