BZX84C11 Equivalent & Substitute Parts

Part Overview

The BZX84C11 is an 11 V, 300 mW Zener diode manufactured by Taiwan Semiconductor Corporation in SOT-23 surface mount packaging. This small signal Zener diode is designed for voltage regulation and protection applications in electronic circuits. The part is currently in active production status with 20,200 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and compliance certifications to support component procurement flexibility and supply chain continuity.

Substiute Parts

BZX84C11

Taiwan Semiconductor CorporationIn Stock: 20261BZX84C11 Datasheet

Current PartRFQ

BZX84C11 RFG

Taiwan Semiconductor CorporationIn Stock: 7027BZX84C11 RFG Datasheet

Parametric EquivalentRFQ

BZX84B11Q-7-F

Diodes IncorporatedIn Stock: 869BZX84B11Q-7-F Datasheet

Parametric EquivalentRFQ

BZX84C11Q-7-F

Diodes IncorporatedIn Stock: 775BZX84C11Q-7-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZX84C11 Zener diode is determined by the following critical parameters:

Electrical Specifications:

• Zener voltage (Vz) of 11 V nominal
• Maximum power dissipation of 300 mW
• Maximum impedance (Zzt) of 20 Ohms
• Reverse leakage current of 100 nA @ 8 V
• Forward voltage of 900 mV @ 10 mA
• Operating temperature range of -65°C to 150°C

Mechanical Compatibility:

• Surface mount technology
• SOT-23-3 package (TO-236-3, SC-59 equivalent designations)

Compliance Requirements:

• RoHS3 compliance
• REACH unaffected status
• ECCN EAR99 classification

Substitute parts must match all electrical parameters and package specifications. Tolerance variations and manufacturer differences are acceptable when all other specifications align. Automotive-grade qualifications (AEC-Q101) represent enhanced reliability options within the substitution group.

Parameter Comparison

Engineering Selection Recommendations

BZX84C11 RFG (Taiwan Semiconductor Corporation)

This part is a direct parametric equivalent with identical electrical specifications and SOT-23-3 packaging. The primary difference is packaging format (Tape & Reel versus bulk) and a marginally tighter tolerance specification (±5% versus ±5.45%). Both parts are ROHS3 compliant and REACH unaffected. Selection of this substitute is appropriate for high-volume production environments requiring tape and reel packaging.

BZX84B11Q-7-F (Diodes Incorporated)

This part meets all electrical and mechanical specifications with a tighter tolerance specification of ±2%. It carries automotive-grade qualification (AEC-Q101), indicating enhanced reliability screening and qualification for automotive applications. This substitute is suitable for applications requiring automotive-grade components or where tighter voltage tolerance is beneficial. Tape and reel packaging is standard.

BZX84C11Q-7-F (Diodes Incorporated)

This part is electrically and mechanically identical to the main part BZX84C11, with matching ±5.45% tolerance and all electrical parameters. It includes automotive-grade qualification (AEC-Q101) and is supplied in Tape & Reel format. This substitute provides automotive-grade reliability assurance while maintaining specification equivalence. Selection is appropriate for automotive applications or where enhanced qualification is required.

All substitute parts maintain active product status, full compliance certifications, and compatibility with existing circuit designs specified for the BZX84C11.

Frequently Asked Questions (FAQ)

Q: Can BZX84C11 be directly replaced with BZX84C11 RFG?

A: Yes. Both parts share identical electrical specifications (11 V nominal Zener voltage, 300 mW power rating, 20 Ohms maximum impedance, 100 nA reverse leakage, 900 mV forward voltage) and SOT-23-3 packaging. The primary difference is packaging format (Tape & Reel for RFG versus bulk for standard BZX84C11). Both are ROHS3 compliant and REACH unaffected.

Q: What is the difference between BZX84B11Q-7-F and BZX84C11Q-7-F?

A: The primary difference is tolerance specification. BZX84B11Q-7-F has ±2% tolerance, while BZX84C11Q-7-F has ±5.45% tolerance. Both parts are manufactured by Diodes Incorporated, carry AEC-Q101 automotive qualification, and are supplied in Tape & Reel packaging. All other electrical and mechanical specifications are identical.

Q: Are the Diodes Incorporated parts (BZX84B11Q-7-F and BZX84C11Q-7-F) suitable for automotive applications?

A: Yes. Both Diodes Incorporated parts carry AEC-Q101 automotive qualification, indicating they meet automotive industry reliability and qualification standards. The Taiwan Semiconductor Corporation parts (BZX84C11 and BZX84C11 RFG) do not carry automotive qualification.

Q: Can I use BZX84B11Q-7-F in place of BZX84C11 if tighter tolerance is not required?

A: Yes. BZX84B11Q-7-F meets all electrical specifications of the BZX84C11 and is mechanically compatible in SOT-23-3 packaging. The ±2% tolerance is tighter than the ±5.45% specification of the main part, making it a valid substitute for applications where the standard tolerance is acceptable.

Q: What packaging formats are available for these Zener diodes?

A: BZX84C11 is supplied in bulk packaging. BZX84C11 RFG, BZX84B11Q-7-F, and BZX84C11Q-7-F are all supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly operations.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All parts listed (BZX84C11, BZX84C11 RFG, BZX84B11Q-7-F, and BZX84C11Q-7-F) are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these Zener diodes?

A: All parts operate across the temperature range of -65°C to 150°C (junction temperature), providing consistent thermal performance across the substitution group.