BZX79-C3V6,113 Equivalent & Substitute Parts

Part Overview

The BZX79-C3V6,113 is a 3.6 V Zener diode rated at 400 mW with ±5% tolerance, manufactured by Nexperia USA Inc. in the DO-204AH (DO-35) axial through-hole package. This component is classified as Active and is ROHS3 compliant. The device operates across a temperature range of -65°C to 200°C and is suitable for voltage regulation and protection applications in electronic circuits. Alternative part numbers may be required due to packaging availability, tolerance specifications, or inventory constraints across different distribution channels and manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	3.6	V
Tolerance	±5%	-
Power - Max	400	mW
Impedance (Max)	90	Ohms
Current - Reverse Leakage @ Vr	5	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	-65 to 200	°C
Mounting Type	Through Hole	-
Package / Case	DO-204AH, DO-35, Axial	-

Substitute Part Grouping Explanation

Substitution of the BZX79-C3V6,113 is determined by the following critical parameters: nominal Zener voltage (3.6 V), maximum power dissipation (400 mW), voltage tolerance (±5%), impedance (90 Ohms maximum), reverse leakage current (5 µA @ 1 V), forward voltage drop (900 mV @ 10 mA), operating temperature range (-65°C to 200°C), and through-hole axial package configuration (DO-204AH/DO-35).

Parametric equivalents maintain all electrical specifications and package requirements. These parts are interchangeable in circuit applications where the BZX79-C3V6,113 is specified. Similar parts share the same nominal Zener voltage and package type but may differ in power rating, impedance, leakage current, or operating temperature range. Similar parts require circuit-level evaluation to confirm suitability for the intended application.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Tolerance	Power (mW)	Zzt (Ohms)	Leakage @ 1V (µA)	Vf @ If (mV)	Temp Range (°C)	Status
BZX79-C3V6,113	Nexperia USA Inc.	3.6	±5%	400	90	5	900 @ 10 mA	-65 to 200	Active
BZX79-B3V6,113	NXP Semiconductors	3.6	±2%	400	90	5	900 @ 10 mA	-65 to 200	Active
BZX79-B3V6,133	Nexperia USA Inc.	3.6	±2%	400	90	5	900 @ 10 mA	-65 to 200	Active
BZX79-B3V6,143	NXP USA Inc.	3.6	±2%	400	90	5	900 @ 10 mA	-65 to 200	Active
BZX79-C3V6,133	NXP Semiconductors	3.6	±5%	400	90	5	900 @ 10 mA	-65 to 200	Active
BZX79-C3V6,143	NXP USA Inc.	3.6	±5%	400	90	5	900 @ 10 mA	-65 to 200	Active
1N4619-1	Microchip Technology	3.0	±5%	500	1600	0.4	1.1 @ 200 mA	-65 to 175	Active
1N5227B-T	Vishay General Semiconductor	3.6	±5%	500	1700	15	1.1 @ 200 mA	-65 to 175	Obsolete
BZX79C3V6	Taiwan Semiconductor Corporation	3.6	±5%	500	90	15	1.5 @ 100 mA	-65 to 175	Active
BZX79C3V6-T50A	Fairchild Semiconductor	3.6	±5%	500	90	15	1.5 @ 100 mA	-65 to 200	Active

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

The BZX79-B3V6 series (part numbers BZX79-B3V6,113, BZX79-B3V6,133, and BZX79-B3V6,143) are parametric equivalents with improved tolerance specification (±2% versus ±5%). These parts maintain identical electrical performance across all critical parameters and operating temperature range. All variants are Active status and ROHS3 compliant. Selection among these equivalents depends on packaging preference (Cut Tape versus Bulk) and manufacturer availability.

The BZX79-C3V6 series (part numbers BZX79-C3V6,133 and BZX79-C3V6,143) are parametric equivalents with matching ±5% tolerance. These parts are functionally identical to the BZX79-C3V6,113 and differ only in packaging format and distribution channel. All variants are Active status and ROHS3 compliant.

Similar Parts (Application-Dependent Evaluation Required):

The 1N4619-1 (Microchip Technology) differs in nominal Zener voltage (3.0 V versus 3.6 V), impedance (1600 Ohms versus 90 Ohms), and leakage characteristics. This part is not suitable for applications requiring 3.6 V regulation.

The 1N5227B-T (Vishay General Semiconductor) matches the 3.6 V nominal voltage but is classified as Obsolete. This part exhibits higher impedance (1700 Ohms), higher leakage current (15 µA), and lower maximum operating temperature (175°C). Use is not recommended for new designs.

The BZX79C3V6 (Taiwan Semiconductor Corporation) and BZX79C3V6-T50A (Fairchild Semiconductor) share the 3.6 V nominal voltage and 90 Ohm impedance but feature 500 mW power rating (versus 400 mW) and higher leakage current (15 µA versus 5 µA). These parts are suitable for applications where higher power dissipation is acceptable and leakage current specification is not critical. The BZX79C3V6-T50A maintains the full -65°C to 200°C operating range.

Frequently Asked Questions (FAQ)

Q: Can I substitute BZX79-B3V6 series parts for BZX79-C3V6,113?

A: Yes. The BZX79-B3V6 series (BZX79-B3V6,113, BZX79-B3V6,133, BZX79-B3V6,143) are parametric equivalents. They maintain identical electrical specifications and package configuration. The primary difference is improved tolerance (±2% versus ±5%), which provides tighter voltage regulation. These parts are direct substitutes in all applications.

Q: What is the difference between the various BZX79-C3V6 part numbers (113, 133, 143)?

A: The numeric suffixes (113, 133, 143) indicate different packaging and distribution formats. The 113 designation represents Cut Tape packaging from Nexperia USA Inc. The 133 and 143 designations represent Bulk packaging from NXP Semiconductors and NXP USA Inc., respectively. All three variants maintain identical electrical specifications and are functionally interchangeable.

Q: Can I use 1N4619-1 as a substitute for BZX79-C3V6,113?

A: No. The 1N4619-1 has a nominal Zener voltage of 3.0 V, which differs from the required 3.6 V specification. This voltage difference makes the part unsuitable for applications requiring 3.6 V regulation. Additionally, the impedance and leakage characteristics differ significantly.

Q: Are the BZX79C3V6 and BZX79C3V6-T50A parts suitable replacements?

A: These parts share the 3.6 V nominal voltage and 90 Ohm impedance but differ in power rating (500 mW versus 400 mW) and leakage current (15 µA versus 5 µA). They are suitable only if the application circuit can tolerate higher leakage current and does not require the 400 mW power specification as a maximum limit. The BZX79C3V6-T50A maintains the full -65°C to 200°C operating range.

Q: Why is 1N5227B-T listed as Obsolete?

A: The 1N5227B-T is classified as Obsolete by the manufacturer. While it shares the 3.6 V nominal voltage, it exhibits higher impedance (1700 Ohms), higher leakage current (15 µA), and reduced maximum operating temperature (175°C). This part should not be selected for new designs due to its discontinued status and inferior electrical characteristics.

Q: What packaging options are available for the BZX79-C3V6 series?

A: The BZX79-C3V6 series is available in Cut Tape (CT) and Bulk packaging formats. The BZX79-C3V6,113 is supplied in Cut Tape. The BZX79-C3V6,133 and BZX79-C3V6,143 are supplied in Bulk format. All variants use the same DO-204AH (DO-35) axial through-hole package configuration.

Q: Are all substitute parts ROHS3 compliant?

A: The BZX79-B3V6 series and BZX79-C3V6 series are ROHS3 compliant. The 1N4619-1 is RoHS non-compliant. The 1N5227B-T is ROHS3 compliant but is Obsolete. The BZX79C3V6 and BZX79C3V6-T50A compliance status is ROHS3 compliant.

Q: What is the operating temperature range difference between parts?

A: The BZX79-C3V6,113, BZX79-B3V6 series, and BZX79C3V6-T50A operate across -65°C to 200°C. The 1N4619-1, 1N5227B-T, and BZX79C3V6 operate across -65°C to 175°C. Applications requiring operation above 175°C must use parts with the extended -65°C to 200°C range.

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