BZX84-C27/LF1VL Equivalent & Substitute Parts

Part Overview

The BZX84-C27/LF1VL is an automotive-grade Zener diode manufactured by NXP USA Inc., rated at 27 V nominal with 250 mW power dissipation capability. This surface mount component is designed for voltage regulation and protection applications in automotive and industrial circuits. The part is Active status and carries AEC-Q101 automotive qualification, ensuring compliance with automotive reliability standards.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when tolerance specifications need adjustment for specific circuit requirements while maintaining electrical equivalence.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	27	V
Tolerance	±5%	-
Power - Max	250	mW
Impedance (Max)	80	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 18.9 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	-
Mounting Type	Surface Mount	-
Grade	Automotive	-
Qualification	AEC-Q101	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of Zener diodes is determined by electrical and mechanical parameter equivalence. The following parameters must remain constant across all substitute parts:

Critical Equivalence Parameters:

Voltage - Zener (Nom): 27 V
Power - Max: 250 mW
Impedance (Max): 80 Ohms
Current - Reverse Leakage @ Vr: 50 nA @ 18.9 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
Operating Temperature Range: -65°C to 150°C
Package / Case: TO-236-3, SC-59, SOT-23-3
Mounting Type: Surface Mount
Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter (Tolerance): Tolerance specifications may vary between substitute parts. The main part BZX84-C27/LF1VL carries ±5% tolerance. Substitute parts with tighter tolerances (±1% or ±2%) are electrically equivalent and provide improved voltage regulation accuracy. Substitute parts with identical ±5% tolerance provide direct functional equivalence.

Packaging Format Variations: Substitute parts are available in different packaging formats (Tape & Reel, Cut Tape & Digi-Reel®) to accommodate different manufacturing and procurement workflows. All packaging formats contain identical die and electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Voltage - Zener (Nom)	Tolerance	Power - Max	Impedance (Max)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature	Package / Case	Grade	Qualification	RoHS Status	Packaging Format
BZX84-C27/LF1VL	NXP USA Inc.	27 V	±5%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	-
BZX84-A27,215	Nexperia USA Inc.	27 V	±1%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	Tape & Reel (TR)
BZX84-B27,215	Nexperia USA Inc.	27 V	±2%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	Tape & Reel (TR)
BZX84-B27,235	Nexperia USA Inc.	27 V	±2%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	Tape & Reel (TR)
BZX84-C27,215	Nexperia USA Inc.	27 V	±5%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	Cut Tape (CT) & Digi-Reel®
BZX84-C27,235	Nexperia USA Inc.	27 V	±5%	250 mW	80 Ohms	50 nA @ 18.9 V	900 mV @ 10 mA	-65 to 150°C	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	ROHS3 Compliant	Tape & Reel (TR)

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical equivalence to the primary part BZX84-C27/LF1VL. Selection among substitute parts is based on the following criteria:

Tolerance Selection:

±1% Tolerance (BZX84-A27,215): Select when circuit design requires tighter voltage regulation accuracy. This part provides superior voltage stability with minimal deviation from the 27 V nominal specification.
±2% Tolerance (BZX84-B27,215, BZX84-B27,235): Select when moderate voltage regulation accuracy is required. This tolerance range balances cost and performance for general-purpose voltage regulation applications.
±5% Tolerance (BZX84-C27,215, BZX84-C27,235): Select when voltage regulation tolerance of ±5% is acceptable for the application. This specification matches the primary part and is suitable for general protection and regulation circuits.

Packaging Format Selection:

Tape & Reel (TR): Select for high-volume automated assembly operations. Available in BZX84-A27,215, BZX84-B27,215, BZX84-B27,235, and BZX84-C27,235.
Cut Tape (CT) & Digi-Reel®: Select for lower-volume production or mixed-component assembly. Available in BZX84-C27,215.

Compliance and Qualification: All substitute parts carry identical automotive-grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability and quality standards. All parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture handling requirements.

Frequently Asked Questions (FAQ)

Q: Can BZX84-A27,215 be used as a direct replacement for BZX84-C27/LF1VL?

A: Yes. BZX84-A27,215 is electrically equivalent with all critical parameters matching the primary part. The ±1% tolerance specification is tighter than the ±5% tolerance of BZX84-C27/LF1VL, providing improved voltage regulation accuracy. The part is suitable for direct substitution in all applications where BZX84-C27/LF1VL is specified.

Q: What is the difference between BZX84-B27,215 and BZX84-B27,235?

A: Both parts are identical in electrical specifications and tolerance (±2%). The difference is in packaging format. BZX84-B27,215 is supplied in Tape & Reel format, while BZX84-B27,235 is also supplied in Tape & Reel format. Both are suitable for automated assembly processes.

Q: Are there any temperature or power rating differences between substitute parts?

A: No. All substitute parts maintain identical operating temperature range (-65°C to 150°C) and maximum power dissipation (250 mW). These parameters are fixed across all equivalent parts and determine the functional operating envelope.

Q: Can I use BZX84-C27,215 in place of BZX84-C27/LF1VL?

A: Yes. BZX84-C27,215 is electrically and mechanically equivalent to BZX84-C27/LF1VL. Both carry ±5% tolerance specification. The primary difference is packaging format: BZX84-C27,215 is supplied in Cut Tape & Digi-Reel® format, while BZX84-C27/LF1VL packaging format is not specified in the provided data.

Q: Do all substitute parts meet automotive qualification requirements?

A: Yes. All substitute parts listed carry AEC-Q101 automotive qualification and Automotive grade classification, identical to the primary part. All parts are suitable for automotive applications requiring automotive-grade component certification.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions. These parts do not require special moisture-controlled storage or handling procedures and can be stored under standard industrial conditions without moisture-related degradation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts carry ROHS3 compliance status, identical to the primary part BZX84-C27/LF1VL. This ensures compliance with European Union Restriction of Hazardous Substances regulations.

Q: Which substitute part should I select for high-volume production?

A: For high-volume automated assembly, select parts supplied in Tape & Reel format: BZX84-A27,215, BZX84-B27,215, BZX84-B27,235, or BZX84-C27,235. These packaging formats are optimized for automated pick-and-place assembly equipment.

Q: Can tolerance differences affect circuit performance?

A: Tolerance differences affect voltage regulation accuracy. Tighter tolerance specifications (±1% or ±2%) provide more precise voltage output with less variation. The choice depends on circuit requirements. If the application specifies ±5% tolerance, any substitute part with ±5% or tighter tolerance is acceptable.

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