BZX84C30TS-7-F Equivalent & Substitute Parts

Part Overview

The BZX84C30TS-7-F is a Zener Diode Array manufactured by Diodes Incorporated, featuring three independent 30 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 BZX84C30TS-7-F is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	30 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 BZX84C30TS-7-F is determined by the following critical parameters:

Zener Voltage (Vz): 30 V nominal
Configuration: 3 Independent diodes
Power Rating: 200 mW maximum
Package Type: SOT-363 (6-TSSOP)
Operating Temperature Range: -65°C to 150°C
Mounting Technology: Surface Mount

The substitute part MMBZ5256BTS-7-F meets all these core requirements. Both components share identical nominal Zener voltage, configuration, power rating, package designation, temperature range, and mounting type. The substitute part maintains full electrical and mechanical compatibility while offering improved specifications in tolerance and impedance characteristics.

Parameter Comparison

Parameter	BZX84C30TS-7-F	MMBZ5256BTS-7-F
Manufacturer	Diodes Incorporated	Diodes Incorporated
Category	Diodes, Zener	Diodes, Zener
Configuration	3 Independent	3 Independent
Voltage - Zener (Nom) (Vz)	30 V	30 V
Tolerance	±6%	±5%
Power - Max	200 mW	200 mW
Impedance (Max) (Zzt)	80 Ohms	49 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 21 V	100 nA @ 23 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	6-TSSOP, SC-88, SOT-363	6-TSSOP, SC-88, SOT-363
Supplier Device Package	SOT-363	SOT-363
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The MMBZ5256BTS-7-F is the direct substitute for the obsolete BZX84C30TS-7-F. Both components are manufactured by Diodes Incorporated and maintain identical electrical specifications for Zener voltage, power rating, and operating temperature range.

The substitute part offers the following advantages:

Active Product Status: The MMBZ5256BTS-7-F is an active product, ensuring continued availability and long-term supply chain support.
Improved Tolerance: ±5% tolerance compared to ±6%, providing tighter voltage regulation.
Lower Impedance: 49 Ohms maximum impedance versus 80 Ohms, resulting in improved dynamic performance.
Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status.
Identical Packaging: SOT-363 package ensures direct mechanical and electrical compatibility without PCB redesign.

Selection of the MMBZ5256BTS-7-F eliminates obsolescence risk while maintaining full functional equivalence and improving performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the MMBZ5256BTS-7-F be used as a direct replacement for the BZX84C30TS-7-F without PCB modifications?

A: Yes. Both components utilize the identical SOT-363 package with the same pinout, footprint, and mounting requirements. No PCB redesign is necessary.

Q: What is the primary reason for substituting the BZX84C30TS-7-F?

A: The BZX84C30TS-7-F is classified as obsolete. The MMBZ5256BTS-7-F is an active product from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are the electrical specifications compatible between these two parts?

A: Yes. Both components share identical nominal Zener voltage (30 V), power rating (200 mW), configuration (3 independent diodes), and operating temperature range (-65°C to 150°C). The substitute part offers improved tolerance (±5% versus ±6%) and lower impedance (49 Ohms versus 80 Ohms).

Q: What is the difference in impedance between these parts, and does it affect circuit performance?

A: The MMBZ5256BTS-7-F has a maximum impedance of 49 Ohms compared to 80 Ohms for the BZX84C30TS-7-F. Lower impedance provides improved dynamic response and voltage regulation stability in protection and reference circuits.

Q: Are both parts RoHS compliant?

A: Yes. Both the BZX84C30TS-7-F and MMBZ5256BTS-7-F are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: What packaging options are available for the MMBZ5256BTS-7-F?

A: The MMBZ5256BTS-7-F is supplied in Tape & Reel (TR) packaging, standard for high-volume surface mount assembly operations.

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