BZX84-C11,235 Equivalent & Substitute Parts

Part Overview

The BZX84-C11,235 is an 11 V, 250 mW Zener diode manufactured by Nexperia USA Inc. in a surface mount TO-236AB package. This component is classified as Active and meets automotive-grade specifications with AEC-Q101 qualification. The device operates across a temperature range of -65°C to 150°C and maintains a ±5% tolerance on the nominal Zener voltage.

Equivalent and substitute parts are identified to address supply chain requirements, packaging preferences, tolerance specifications, and power rating variations while maintaining functional compatibility within the 11 V Zener voltage class.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	11	V
Tolerance	±5%	—
Power - Max	250	mW
Impedance (Max)	20	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 8 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BZX84-C11,235 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or superior specifications across all critical parameters: 11 V nominal Zener voltage, ±5% tolerance, 250 mW power rating, 20 Ohms maximum impedance, 100 nA reverse leakage current, 900 mV forward voltage, -65°C to 150°C operating temperature, automotive grade, AEC-Q101 qualification, and surface mount SOT-23-3 / TO-236AB packaging. These parts differ only in packaging format (Tape & Reel versus Bulk versus Cut Tape) or tolerance grade (±1% or ±2%).

Direct Manufacturer Equivalents are sourced from alternative manufacturers (onsemi) and maintain the 11 V Zener voltage, ±5% tolerance, and SOT-23-3 package. Power ratings may vary (225 mW versus 250 mW), and impedance specifications remain at 20 Ohms maximum.

Similar Parts share the 11 V Zener voltage, ±5% tolerance, and SOT-23-3 package but feature increased power ratings (300 mW or 350 mW) or modified impedance specifications (22 Ohms). These parts accommodate applications requiring higher power dissipation while maintaining voltage regulation at 11 V.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Zener (Nom) (V)	Tolerance	Power - Max (mW)	Impedance (Max) (Ohms)	Current - Reverse Leakage @ Vr	Voltage - Forward (Vf) (Max) @ If	Operating Temperature (°C)	Package / Case	Grade	Qualification	Packaging
BZX84-C11,235	Nexperia USA Inc.	11	±5%	250	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Tape & Reel (TR)
BZX84-A11,215	Nexperia USA Inc.	11	±1%	250	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Tape & Reel (TR)
BZX84-B11,215	Nexperia USA Inc.	11	±2%	250	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Tape & Reel (TR)
BZX84-B11,235	NXP USA Inc.	11	±2%	250	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Bulk
BZX84-C11,215	Nexperia USA Inc.	11	±5%	250	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Cut Tape (CT) & Digi-Reel®
BZX84C11LT1G	onsemi	11	±5%	225	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	—	—	Tape & Reel (TR)
BZX84C11-7-F	Diodes Incorporated	11	±5%	300	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	—	—	Tape & Reel (TR)
BZX84C11-TP	Micro Commercial Co	11	±5%	350	20	100 nA @ 8 V	900 mV @ 10 mA	-55 to 150	TO-236-3, SC-59, SOT-23-3	—	—	Tape & Reel (TR)
MMBZ5241BLT1G	onsemi	11	±5%	225	22	2 µA @ 8.4 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	—	—	Tape & Reel (TR)
SZBZX84C11LT1G	onsemi	11	±5%	225	20	100 nA @ 8 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Tape & Reel (TR)
SZMMBZ5241BLT1G	onsemi	11	±5%	225	22	2 µA @ 8.4 V	900 mV @ 10 mA	-65 to 150	TO-236-3, SC-59, SOT-23-3	Automotive	AEC-Q101	Tape & Reel (TR)

Engineering Selection Recommendations

Parametric Equivalents with Identical Specifications:

BZX84-A11,215 and BZX84-B11,215 are direct parametric equivalents from Nexperia USA Inc. with tighter tolerance grades (±1% and ±2% respectively) compared to the ±5% tolerance of the main part. Both maintain 250 mW power rating, 20 Ohms impedance, automotive grade, and AEC-Q101 qualification. These parts are suitable for applications requiring improved voltage regulation accuracy. BZX84-B11,235 from NXP USA Inc. provides identical electrical specifications in Bulk packaging format, accommodating procurement strategies that do not require tape and reel format.

BZX84-C11,215 from Nexperia USA Inc. is electrically identical to the main part BZX84-C11,235, differing only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). This part maintains all automotive-grade specifications and AEC-Q101 qualification.

Direct Manufacturer Equivalents:

BZX84C11LT1G from onsemi and SZBZX84C11LT1G from onsemi are direct equivalents with 11 V nominal voltage and ±5% tolerance. BZX84C11LT1G operates at 225 mW maximum power. SZBZX84C11LT1G maintains automotive grade and AEC-Q101 qualification with identical 20 Ohms impedance and 100 nA reverse leakage specifications. Both are available in Tape & Reel packaging.

Similar Parts with Increased Power Ratings:

BZX84C11-7-F from Diodes Incorporated provides 300 mW power rating while maintaining 11 V voltage, ±5% tolerance, 20 Ohms impedance, and SOT-23-3 package. This part accommodates applications with higher power dissipation requirements.

BZX84C11-TP from Micro Commercial Co offers 350 mW power rating with 11 V voltage and ±5% tolerance. Operating temperature range is -55°C to 150°C, which is narrower than the main part's -65°C to 150°C range.

Similar Parts with Modified Impedance:

MMBZ5241BLT1G and SZMMBZ5241BLT1G from onsemi feature 22 Ohms maximum impedance (versus 20 Ohms) and 225 mW power rating. Reverse leakage current is specified at 2 µA @ 8.4 V. SZMMBZ5241BLT1G maintains automotive grade and AEC-Q101 qualification. These parts are suitable for applications where the impedance specification variance is acceptable.

All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, consistent with the main part specifications.

Frequently Asked Questions (FAQ)

Q: Can BZX84-A11,215 replace BZX84-C11,235 in my application?

A: Yes. BZX84-A11,215 is a parametric equivalent with identical electrical specifications except for a tighter tolerance grade (±1% versus ±5%). The part maintains 11 V nominal voltage, 250 mW power rating, 20 Ohms impedance, automotive grade, and AEC-Q101 qualification. The improved tolerance may provide better voltage regulation accuracy in applications sensitive to Zener voltage variation.

Q: What is the difference between BZX84-C11,235 and BZX84-C11,215?

A: These parts are electrically identical. The difference is packaging format: BZX84-C11,235 is supplied in Tape & Reel (TR) format, while BZX84-C11,215 is supplied in Cut Tape (CT) & Digi-Reel® format. Both maintain identical electrical specifications, automotive grade, and AEC-Q101 qualification.

Q: Can I use BZX84C11LT1G from onsemi as a substitute?

A: Yes, with consideration of power rating. BZX84C11LT1G maintains 11 V nominal voltage, ±5% tolerance, 20 Ohms impedance, and SOT-23-3 package. The power rating is 225 mW compared to 250 mW for the main part. This part is suitable if your application does not require the full 250 mW power dissipation capability.

Q: What is the advantage of using SZBZX84C11LT1G?

A: SZBZX84C11LT1G from onsemi maintains automotive grade and AEC-Q101 qualification, matching the main part's quality standards. It provides 11 V voltage, ±5% tolerance, 20 Ohms impedance, and 225 mW power rating in Tape & Reel packaging. This part is suitable for automotive applications requiring certified components.

Q: Can I use BZX84C11-7-F or BZX84C11-TP for higher power applications?

A: Yes. BZX84C11-7-F provides 300 mW power rating, and BZX84C11-TP provides 350 mW power rating, both maintaining 11 V nominal voltage and ±5% tolerance. These parts accommodate applications requiring higher power dissipation than the 250 mW main part. Note that BZX84C11-TP has a narrower operating temperature range (-55°C to 150°C versus -65°C to 150°C).

Q: What is the difference between MMBZ5241BLT1G and BZX84C11LT1G?

A: Both parts maintain 11 V nominal voltage, ±5% tolerance, and 225 mW power rating in SOT-23-3 package. MMBZ5241BLT1G has 22 Ohms maximum impedance and 2 µA reverse leakage current @ 8.4 V, while BZX84C11LT1G has 20 Ohms impedance and 100 nA reverse leakage @ 8 V. The BZX84C11LT1G provides tighter impedance and leakage specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance, consistent with the main part BZX84-C11,235. All parts also maintain Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: Which substitute part should I select for automotive applications?

A: For automotive applications, select parts with automotive grade and AEC-Q101 qualification: BZX84-A11,215, BZX84-B11,215, BZX84-B11,235, BZX84-C11,215, SZBZX84C11LT1G, or SZMMBZ5241BLT1G. These parts meet automotive quality standards equivalent to the main part.

Q: Can I use parts with different impedance specifications?

A: Parts with 22 Ohms impedance (MMBZ5241BLT1G and SZMMBZ5241BLT1G) can be used if your circuit design accommodates the impedance variance. The 2 Ohms difference may affect voltage regulation characteristics in applications with dynamic load conditions. Verify circuit performance requirements before substitution.

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