Equivalent & Substitute Parts: STZ5.6NFHT146

Part Overview

The STZ5.6NFHT146 from Rohm Semiconductor is a Zener diode array designed for terminal protection in automotive applications. It features a 1 Pair Common Anode configuration, 5.6 V nominal Zener voltage, 200 mW maximum power, and is rated for operation up to 150°C. The part is offered in a SMD3 package and is compliant with AEC-Q101, ROHS3, and REACH standards. The product is currently marked as "Not For New Designs," making identification of parametric substitutes necessary for direct replacement in production, repair, or ongoing procurement.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	Configuration	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	REACH Status	ECCN	HTSUS	Qualification	Moisture Sensitivity Level (MSL)	Product Status
STZ5.6NFHT146	Rohm Semiconductor	Diodes, Zener	Tape & Reel (TR)	1 Pair Common Anode	5.6 V	±5.45%	200 mW	60 Ohms	1 µA @ 2.5 V	150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SMD3	ROHS3 Compliant	REACH Unaffected	EAR99	8541.10.0050	AEC-Q101	1 (Unlimited)	Not For New Designs

Substitute Part Grouping Explanation

Substitution is strictly determined using the following key parameters: Zener voltage (5.6 V), tolerance (±5.45%), maximum power rating (200 mW), configuration (1 Pair Common Anode), maximum impedance (60 Ohms), reverse leakage current (1 µA @ 2.5 V), operating temperature (150°C), mounting type (Surface Mount), package/case (TO-236-3, SC-59, SOT-23-3), RoHS and REACH compliance, and automotive qualification (AEC-Q101 where specified). Parts listed as substitutes conform to these electrical, mechanical, and compliance parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Packaging	Configuration	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	REACH Status	ECCN	HTSUS	Moisture Sensitivity Level (MSL)	Product Status
STZ5.6NFHT146	Rohm Semiconductor	Diodes, Zener	Tape & Reel (TR)	1 Pair Common Anode	5.6 V	±5.45%	200 mW	60 Ohms	1 µA @ 2.5 V	150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SMD3	ROHS3 Compliant	REACH Unaffected	EAR99	8541.10.0050	1 (Unlimited)	Not For New Designs
AZ23C5V6P_R1_00001	Panjit International Inc.	Diodes, Zener	Tape & Reel (TR)	1 Pair Common Anode	5.6 V	±5.45%	200 mW	60 Ohms	1 µA @ 2.5 V	150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	ROHS3 Compliant	REACH Unaffected	EAR99	8541.10.0050	1 (Unlimited)	Active
STZ23C5V6_R1_00001	Panjit International Inc.	Diodes, Zener	Tape & Reel (TR)	1 Pair Common Anode	5.6 V	±5.45%	200 mW	60 Ohms	1 µA @ 2.5 V	150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	ROHS3 Compliant	REACH Unaffected	EAR99	8541.10.0050	1 (Unlimited)	Active

Engineering Selection Recommendations

STZ5.6NFHT146 is designated as "Not For New Designs." Both substitute parts, AZ23C5V6P_R1_00001 and STZ23C5V6_R1_00001 from Panjit International Inc., are listed as "Active" products and provide direct parametric equivalence. All options confirm ROHS3 compliance, REACH unaffected status, ECCN EAR99, HTSUS 8541.10.0050, and have a Moisture Sensitivity Level (MSL) of 1 (Unlimited). Automotive-grade qualification (AEC-Q101) is specified for the main part; substitute entries are based strictly on input parameters.

Frequently Asked Questions (FAQ)

Q: Which parameters are critical for determining Zener diode array substitution?
A: Substitution is based on matching configuration, Zener voltage, tolerance, maximum power, impedance, reverse leakage current, operating temperature, mounting type, package, and compliance certifications.

Q: Are substitute parts AZ23C5V6P_R1_00001 and STZ23C5V6_R1_00001 compatible with the SOT-23 footprint?
A: Yes. Both substitutes specify SOT-23, TO-236-3, and SC-59 compatibility, matching the package/case formats of the main part STZ5.6NFHT146.

Q: Is moisture sensitivity level important in selection?
A: Yes. All listed parts possess a Moisture Sensitivity Level (MSL) of 1 (Unlimited), ensuring compatibility with standard reflow processes.

Q: Do substitute parts meet automotive application requirements?
A: The main part lists AEC-Q101 qualification for automotive use. Substitute lines are accepted if input parameters include equivalent statements for qualification.

Q: How can compliance status affect part selection?
A: Selection must utilize only ROHS3 compliant and REACH unaffected components with identical ECCN and HTSUS codes, as reflected in the comparison table.

Q: Why seek substitutes for STZ5.6NFHT146?
A: The part is marked "Not For New Designs," requiring direct parametric substitutes for ongoing production and design continuity.

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