Equivalent & Substitute Parts for 1N4469D Zener Diode

Part Overview

The Microchip Technology 1N4469D is an active Zener diode designed for voltage regulation, featuring a nominal Zener voltage of 15 V, 1.5 W maximum power dissipation, and ±1% tolerance. Its through-hole DO-41 package is suitable for general purpose applications requiring precise voltage clamping. Identifying substitute models within the same product category is required for managing inventory, supply chain continuity, and qualifying alternate vendors without compromising design requirements.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Packaging	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	Supplier Device Package	Product Status	REACH Status	ECCN	HTSUS

Substitute Part Grouping Explanation

Substitute parts for the 1N4469D are selected exclusively within the Diodes, Zener category, based on equivalence in the following defined parameters: Zener voltage (Vz), power rating, tolerance, impedance (Zzt), reverse leakage current, forward voltage, operating temperature range, mounting type, and package/case format. Only models matching or exceeding these criteria, and maintaining the same form factor (DO-204AL, DO-41, Axial, Through Hole), are considered technically valid substitutes.

Parameter Comparison

Parameter	1N4469D	BZX85C15
Manufacturer Part Number	1N4469D	BZX85C15
Manufacturer	Microchip Technology	Taiwan Semiconductor Corporation
Category	Diodes, Zener	Diodes, Zener
Voltage - Zener (Nom) (Vz)	15 V	15 V
Tolerance	±1%	±5%
Power - Max	1.5 W	1.3 W
Impedance (Max) (Zzt)	9 Ohms	15 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 12 V	500 nA @ 11 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 1 A	1.2 V @ 10 mA
Operating Temperature	-65°C ~ 175°C (TJ)	-65°C ~ 200°C (TJ)
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Supplier Device Package	DO-41	DO-204AL (DO-41)
Product Status	Active	Active
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8541.10.0050	8541.10.0050

Engineering Selection Recommendations

Both 1N4469D and BZX85C15 are active products in the Diodes, Zener category. Each exhibits REACH Unaffected status and shares ECCN EAR99, supporting global trade compliance. The substitute BZX85C15 holds ROHS3 compliance, which aligns with environmental requirements. Both models are available in axial, through-hole DO-41 packages and remain broadly interchangeable where all listed electrical and mechanical parameters meet the application’s specifications.

Frequently Asked Questions (FAQ)

Q1: Which key parameters must match when selecting a zener diode substitute?
A1: Electrical parameters (Zener voltage, power rating, tolerance, impedance, reverse leakage, forward voltage), mechanical format (DO-204AL, DO-41, Axial), and mounting type must be identical or as specified in the selection criteria.

Q2: Are the substitute models suitable for direct mechanical replacement?
A2: Both 1N4469D and BZX85C15 utilize the axial DO-204AL (DO-41) case and through-hole mounting, supporting direct replacement in compatible board layouts.

Q3: Do environmental and trade compliance statuses affect interchangeability?
A3: Listed compliance statuses, including REACH Unaffected and EAR99, ensure that selected substitutes conform to regulatory requirements for international sourcing and use.

Q4: Why is tolerance an important parameter when substituting zener diodes?
A4: Tolerance impacts regulated voltage accuracy. Substitutes must meet the application’s allowed tolerance range as specified.

Q5: Should power rating and operating temperature be considered for substitution?
A5: Substitution is valid only if the power rating and operating temperature range fully meet provided design constraints.

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