Equivalent & Substitute Parts for 1N5369A/TR12 Zener Diode

Part Overview

The 1N5369A/TR12 is a Zener Diode from Microchip Technology. It is designed for voltage regulation applications requiring a nominal Zener voltage of 51 V and a maximum power dissipation of 5 W. The device is configured for through-hole mounting in a T-18, Axial package and possesses a ±10% tolerance. The product status is Active, and it is supplied via Tape & Reel packaging. Sourcing alternative models for 1N5369A/TR12 is necessary to address requirements for different packaging, tighter electrical tolerances, compliance certifications such as RoHS, or to ensure supply chain continuity.

Key Parameters

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	Product Status
1N5369A/TR12	Microchip Technology	51 V	±10%	5 W	27 Ohms	500 nA @ 36.7 V	1.2 V @ 1 A	-65°C ~ 150°C	Through Hole	T-18, Axial	RoHS non-compliant	1 (Unlimited)	REACH Unaffected	Active

Substitute Part Grouping Explanation

The substitutes for the 1N5369A/TR12 are identified strictly based on the provided electrical and mechanical parameters. Key parameters used for substitution grouping are:

Nominal Zener Voltage (Vz)
Power Dissipation (W)
Tolerance
Maximum Zener Impedance (Zzt)
Current Reverse Leakage @ Vr
Voltage Forward (Vf) Max @ If
Operating Temperature Range
Mounting Type
Package / Case
Compliance Certification (RoHS, REACH)
Product Status

Substitutes must match or exceed required values for these parameters and be available with an active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (Vz)	Tolerance	Power - Max	Impedance (Max) (Zzt)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Mounting Type	Package / Case	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status	Product Status
1N5369A/TR12	Microchip Technology	51 V	±10%	5 W	27 Ohms	500 nA @ 36.7 V	1.2 V @ 1 A	-65°C ~ 150°C	Through Hole	T-18, Axial	RoHS non-compliant	1 (Unlimited)	REACH Unaffected	Active
1N5369BG	onsemi	51 V	±5%	5 W	27 Ohms	500 nA @ 38.8 V	1.2 V @ 1 A	-65°C ~ 200°C	Through Hole	T-18, Axial	ROHS3 Compliant	Not Applicable	REACH Unaffected	Active
1N5369BRLG	onsemi	51 V	±5%	5 W	27 Ohms	500 nA @ 38.8 V	1.2 V @ 1 A	-65°C ~ 200°C	Through Hole	T-18, Axial	ROHS3 Compliant	Not Applicable	REACH Unaffected	Active
BZX55C51-TAP	Vishay General Semiconductor - Diodes Division	51 V	±5%	500 mW	125 Ohms	100 nA @ 39 V	1.5 V @ 200 mA	-65°C ~ 175°C	Through Hole	DO-204AH, DO-35, Axial	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected	Active

Engineering Selection Recommendations

Selection of substitute Zener diodes for 1N5369A/TR12 must consider product status and compliance requirements. 1N5369BG and 1N5369BRLG from onsemi offer the same electrical parameters and package type with ROHS3-compliant status. BZX55C51-TAP from Vishay General Semiconductor provides lower power dissipation and higher impedance; it is ROHS3 compliant and automotive qualified.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for choosing a substitute for 1N5369A/TR12?
A1: The primary criteria include matching the nominal Zener voltage (51 V), power rating (5 W), impedance, mounting type, package, and compliance status.

Q2: Can 1N5369BG or 1N5369BRLG be directly substituted in designs using 1N5369A/TR12?
A2: Yes, both 1N5369BG and 1N5369BRLG match the key electrical and mechanical parameters and are ROHS3 compliant.

Q3: Is BZX55C51-TAP suitable where a 5 W power dissipation is required?
A3: BZX55C51-TAP supports only 500 mW maximum power, which does not meet the 5 W requirement of 1N5369A/TR12; it is compatible only for lower power applications.

Q4: Do package types differ among substitutes?
A4: 1N5369A/TR12, 1N5369BG, and 1N5369BRLG all use the T-18, Axial package; BZX55C51-TAP uses DO-204AH (DO-35), Axial package.

Q5: What compliance certifications are present in substitutes?
A5: 1N5369BG, 1N5369BRLG, and BZX55C51-TAP are ROHS3 compliant and REACH Unaffected; 1N5369A/TR12 is RoHS non-compliant.

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