BZX84C18TS-7-F Equivalent & Substitute Parts

Part Overview

The BZX84C18TS-7-F is a Zener Diode Array manufactured by Diodes Incorporated, featuring 3 independent 18 V Zener diodes in a 6-TSSOP (SOT-363) surface mount package. This component is rated for 200 mW maximum power dissipation with ±6% voltage tolerance and operates across the temperature range of -65°C to 150°C.

The BZX84C18TS-7-F is classified as Obsolete. Identification of equivalent substitute parts is necessary to support ongoing design requirements, maintenance operations, and production continuity where this component is specified in existing applications.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	18 V
Configuration	3 Independent
Power - Max	200 mW
Tolerance	±6%
Package / Case	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the BZX84C18TS-7-F is determined by the following critical parameters:

Primary Substitution Criteria:

Nominal Zener voltage: 18 V
Configuration: 3 Independent diodes
Maximum power rating: 200 mW
Package type: SOT-363 (6-TSSOP)
Surface mount compatibility

Secondary Compatibility Parameters:

Operating temperature range: -65°C to 150°C
Voltage tolerance: ±6% or tighter
RoHS3 compliance
Moisture Sensitivity Level: 1 (Unlimited)

The MMBZ5248BTS-7-F meets all primary substitution criteria and maintains compatibility across all secondary parameters. Both components share identical nominal Zener voltage, configuration, power rating, and package specification. The substitute part features improved voltage tolerance (±5% versus ±6%) and lower impedance (21 Ohms versus 45 Ohms), representing enhanced electrical performance characteristics.

Parameter Comparison

Parameter	BZX84C18TS-7-F	MMBZ5248BTS-7-F
Manufacturer	Diodes Incorporated	Diodes Incorporated
Category	Diodes, Zener	Diodes, Zener
Configuration	3 Independent	3 Independent
Voltage - Zener (Nom) (Vz)	18 V	18 V
Tolerance	±6%	±5%
Power - Max	200 mW	200 mW
Impedance (Max) (Zzt)	45 Ohms	21 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 12.6 V	100 nA @ 14 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The MMBZ5248BTS-7-F is the direct substitute for the BZX84C18TS-7-F based on the following engineering factors:

Product Status: The BZX84C18TS-7-F is classified as Obsolete, while the MMBZ5248BTS-7-F maintains Active product status. This distinction ensures long-term availability and continued manufacturing support for the substitute component.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH Unaffected status, satisfying current environmental and regulatory requirements for electronic component procurement and deployment.

Electrical Equivalence: The substitute part maintains identical nominal Zener voltage (18 V), configuration (3 Independent), maximum power rating (200 mW), and forward voltage characteristics. The improved voltage tolerance (±5% versus ±6%) and reduced impedance (21 Ohms versus 45 Ohms) represent enhanced performance specifications that do not compromise backward compatibility.

Package Compatibility: Both components utilize the SOT-363 package in 6-TSSOP configuration, ensuring direct mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MMBZ5248BTS-7-F directly replace the BZX84C18TS-7-F in existing designs?

A: Yes. Both components share identical nominal Zener voltage (18 V), configuration (3 Independent diodes), maximum power rating (200 mW), and SOT-363 package specification. The substitute part is electrically and mechanically compatible with applications designed for the BZX84C18TS-7-F.

Q: What are the differences between these two components?

A: The primary differences are product status and electrical performance characteristics. The MMBZ5248BTS-7-F features tighter voltage tolerance (±5% versus ±6%) and lower impedance (21 Ohms versus 45 Ohms). The substitute part is Active, while the original is Obsolete.

Q: Does the improved voltage tolerance of the MMBZ5248BTS-7-F affect compatibility?

A: No. Tighter voltage tolerance represents improved performance and does not compromise compatibility. Applications designed for ±6% tolerance operate within the ±5% specification of the substitute part.

Q: Are both components available in the same packaging format?

A: Yes. Both the BZX84C18TS-7-F and MMBZ5248BTS-7-F are supplied in 6-TSSOP (SOT-363) surface mount packages. The MMBZ5248BTS-7-F is available in Tape & Reel (TR) packaging format.

Q: Do these components meet current regulatory requirements?

A: Yes. Both components are ROHS3 compliant and REACH Unaffected, satisfying current environmental and regulatory standards for electronic component procurement.

Q: What is the operating temperature range for both components?

A: Both the BZX84C18TS-7-F and MMBZ5248BTS-7-F operate across the identical temperature range of -65°C to 150°C.

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