BZX84-C75/LF1VL Equivalent & Substitute Parts

Part Overview

The BZX84-C75/LF1VL is a 75 V Zener diode rated at 250 mW, manufactured by NXP USA Inc. in a surface mount TO-236AB (SOT-23) package. This component is classified as Active product status with AEC-Q101 automotive qualification. The device operates across a temperature range of -65°C to 150°C and maintains ROHS3 compliance with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter tolerances for this Zener diode category.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	75	V
Tolerance	±5%	-
Power - Max	250	mW
Impedance (Max)	255	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 52.5 V	-
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	-
Operating Temperature	-65°C to 150°C	-
Package / Case	TO-236-3, SC-59, SOT-23-3	-
Grade	Automotive	-
Qualification	AEC-Q101	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the BZX84-C75/LF1VL is determined by the following criteria:

Critical Parameters for Substitution:

Zener voltage: 75 V (nominal)
Power rating: 250 mW (maximum)
Package type: TO-236AB (SOT-23-3)
Mounting type: Surface Mount
Operating temperature range: -65°C to 150°C
Automotive grade with AEC-Q101 qualification
RoHS3 compliance

Tolerance Variations: Substitute parts are grouped by Zener voltage tolerance specification. The main part BZX84-C75/LF1VL carries ±5% tolerance. Substitute parts with tighter tolerances (±1% or ±2%) are electrically equivalent and mechanically compatible, as they meet or exceed the performance specification of the original part.

Packaging Variations: Substitute parts may differ in packaging format (Tape & Reel vs. Bulk) without affecting electrical or mechanical compatibility. The supplier device package remains TO-236AB across all substitutes.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power Max	Zzt (Max)	Vf (Max) @ If	Temp Range	Package	AEC-Q101	RoHS3
BZX84-C75/LF1VL	NXP USA Inc.	75 V	±5%	250 mW	255 Ω	900 mV @ 10 mA	-65°C to 150°C	TO-236AB	Yes	Yes
BZX84-C75,235	Nexperia USA Inc.	75 V	±5%	250 mW	255 Ω	900 mV @ 10 mA	-65°C to 150°C	TO-236AB	Yes	Yes
BZX84-A75,215	Nexperia USA Inc.	75 V	±1%	250 mW	255 Ω	900 mV @ 10 mA	-65°C to 150°C	TO-236AB	Yes	Yes
BZX84-B75,215	NXP Semiconductors	75 V	±2%	250 mW	255 Ω	900 mV @ 10 mA	-65°C to 150°C	TO-236AB	Yes	Yes
BZX84-C75,215	NXP Semiconductors	75 V	±5%	250 mW	255 Ω	900 mV @ 10 mA	-65°C to 150°C	TO-236AB	Yes	Yes

Engineering Selection Recommendations

All listed substitute parts maintain identical electrical specifications and mechanical compatibility with the BZX84-C75/LF1VL. Selection among substitutes is based on the following factors:

Tolerance Requirements:

BZX84-C75/LF1VL, BZX84-C75,235, and BZX84-C75,215 provide ±5% tolerance
BZX84-B75,215 provides ±2% tolerance for applications requiring tighter voltage regulation
BZX84-A75,215 provides ±1% tolerance for precision voltage reference applications

Availability and Packaging:

BZX84-B75,215 offers the highest inventory (159,614 pcs) in bulk packaging
BZX84-A75,215 provides 3,657 pcs in Tape & Reel format
BZX84-C75,235 provides 638 pcs in Tape & Reel format
BZX84-C75,215 provides 4,300 pcs in bulk format

Compliance and Qualification: All substitute parts carry AEC-Q101 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1), meeting the same regulatory and environmental standards as the main part.

Frequently Asked Questions (FAQ)

Q: Can BZX84-A75,215 replace BZX84-C75/LF1VL in all applications?

A: Yes. BZX84-A75,215 is electrically and mechanically compatible. The ±1% tolerance specification of BZX84-A75,215 exceeds the ±5% tolerance requirement of BZX84-C75/LF1VL, making it suitable for all applications where the original part is specified.

Q: What is the difference between BZX84-C75,235 and BZX84-C75,215?

A: Both parts are identical in electrical specifications and package type (TO-236AB). The difference is in packaging format: BZX84-C75,235 is supplied in Tape & Reel format, while BZX84-C75,215 is supplied in bulk format. Selection depends on assembly process requirements.

Q: Are all substitute parts qualified for automotive applications?

A: Yes. All listed substitute parts carry AEC-Q101 qualification and automotive grade designation, meeting the same automotive reliability standards as the BZX84-C75/LF1VL.

Q: Does tolerance variation affect circuit performance?

A: Tolerance variation affects the precision of the Zener voltage output. BZX84-A75,215 (±1%) provides tighter voltage regulation than BZX84-C75/LF1VL (±5%). For applications sensitive to voltage precision, the tighter tolerance part is preferred. For general voltage regulation, all parts are functionally equivalent.

Q: Can substitute parts be mixed in the same assembly?

A: Yes. All substitute parts maintain identical electrical performance and mechanical compatibility. Mixed usage within the same assembly does not create compatibility issues, though design documentation should reflect the actual part used.

Q: What is the significance of the TO-236AB package designation?

A: TO-236AB is the industry standard package designation for SOT-23-3 surface mount Zener diodes. All listed parts use this package, ensuring identical PCB footprint, lead spacing, and mounting compatibility.

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