DL5223B-TP Equivalent & Substitute Parts

Part Overview

The DL5223B-TP is a Zener diode rated at 2.7 V with 500 mW power dissipation in a Mini MELF surface mount package. Manufactured by Micro Commercial Co, this component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and component sourcing in applications requiring 2.7 V Zener regulation.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	2.7 V
Tolerance	±5%
Power - Max	500 mW
Impedance (Max)	30 Ohms
Current - Reverse Leakage @ Vr	75 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA
Operating Temperature Range	-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 DL5223B-TP is determined by matching the following critical electrical and mechanical parameters:

Electrical Parameters:

Zener voltage: 2.7 V nominal
Tolerance: ±5%
Maximum power dissipation: 500 mW
Maximum impedance: 30 Ohms
Reverse leakage current: 75 µA @ 1 V
Forward voltage: 1.1 V @ 200 mA

Mechanical Parameters:

Surface mount mounting type
Package compatibility: DO-213AC, MINI-MELF, or SOD-80

Compliance Parameters:

ROHS3 compliance
Moisture sensitivity level 1

Substitute parts are grouped into two categories: direct package equivalents (Mini MELF package) and alternative package options (SOD-123) that maintain identical electrical specifications. All identified substitutes meet or exceed the electrical performance requirements and regulatory compliance of the original part.

Parameter Comparison

Parameter	DL5223B-TP	MMSZ5223B-TP	TZM5223B-GS08	TZM5223B-GS18
Manufacturer	Micro Commercial Co	Micro Commercial Co	Vishay General Semiconductor	Vishay General Semiconductor
Product Status	Obsolete	Active	Active	Active
Voltage - Zener (Nom)	2.7 V	2.7 V	2.7 V	2.7 V
Tolerance	±5%	±5%	±5%	±5%
Power - Max	500 mW	500 mW	500 mW	500 mW
Impedance (Max)	30 Ohms	30 Ohms	30 Ohms	30 Ohms
Current - Reverse Leakage @ Vr	75 µA @ 1 V	75 µA @ 1 V	75 µA @ 1 V	75 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 200 mA	900 mV @ 10 mA	1.1 V @ 200 mA	1.1 V @ 200 mA
Operating Temperature Range	-65°C ~ 175°C	-55°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	SOD-123	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MMSZ5223B-TP (Micro Commercial Co): This substitute maintains identical electrical specifications and ROHS3 compliance. The part is in active production status, ensuring long-term availability. The SOD-123 package differs from the original Mini MELF package, requiring PCB layout modification. The operating temperature range is narrower (-55°C ~ 150°C versus -65°C ~ 175°C), which may impact applications requiring extended temperature operation. Forward voltage specification differs at a lower test current (900 mV @ 10 mA), though this does not affect Zener regulation performance.

TZM5223B-GS08 and TZM5223B-GS18 (Vishay General Semiconductor): Both Vishay parts provide direct package compatibility with the original DL5223B-TP in the Mini MELF (SOD-80) format. Electrical specifications are identical, including the 1.1 V @ 200 mA forward voltage characteristic. Operating temperature range matches the original (-65°C ~ 175°C). Both parts maintain ROHS3 compliance and MSL 1 rating. TZM5223B-GS08 and TZM5223B-GS18 differ only in packaging reel specifications (GS08 and GS18 designations), with no impact on component performance or electrical characteristics. Both are in active production status.

For applications requiring identical package geometry and extended temperature operation, TZM5223B-GS08 or TZM5223B-GS18 are preferred. For applications where package change is acceptable, MMSZ5223B-TP provides an alternative from the original manufacturer.

Frequently Asked Questions (FAQ)

Q: Can MMSZ5223B-TP be used as a direct replacement for DL5223B-TP?

A: MMSZ5223B-TP matches all electrical specifications and regulatory compliance requirements. However, the package differs (SOD-123 versus Mini MELF). Direct PCB substitution without layout modification is not possible. The operating temperature range is also narrower (-55°C ~ 150°C versus -65°C ~ 175°C).

Q: What is the difference between TZM5223B-GS08 and TZM5223B-GS18?

A: Both parts are electrically and mechanically identical. The designations GS08 and GS18 refer to different packaging reel specifications. Selection between these parts depends on reel quantity requirements and supplier availability, not on component performance.

Q: Are TZM5223B-GS08 and TZM5223B-GS18 pin-compatible with DL5223B-TP?

A: Yes. Both Vishay parts use the same Mini MELF (SOD-80) package as the original DL5223B-TP, providing identical pin configuration and PCB footprint compatibility.

Q: Do all substitute parts meet ROHS3 compliance?

A: Yes. MMSZ5223B-TP, TZM5223B-GS08, and TZM5223B-GS18 are all ROHS3 compliant with MSL 1 rating, matching the original part's regulatory status.

Q: Which substitute is recommended for high-temperature applications?

A: TZM5223B-GS08 and TZM5223B-GS18 support the full operating temperature range of -65°C ~ 175°C, identical to the original DL5223B-TP. MMSZ5223B-TP has a narrower range (-55°C ~ 150°C) and is not suitable for applications requiring extended low or high temperature operation.

Q: Are there any electrical performance differences between the substitutes?

A: All substitutes maintain the 2.7 V nominal Zener voltage, ±5% tolerance, 500 mW power rating, and 30 Ohms maximum impedance. MMSZ5223B-TP specifies forward voltage at a different test condition (900 mV @ 10 mA versus 1.1 V @ 200 mA), but this does not affect Zener regulation performance in typical applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message