BZX84C36 Equivalent & Substitute Parts

Part Overview

The BZX84C36 is an active-status zener diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the SOT-23 package. This 36 V, 300 mW zener diode operates across a temperature range of -65°C to 150°C and is RoHS3 compliant. The part is available in tape and reel packaging with 2100 pieces in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity for applications requiring 36 V zener regulation at 300 mW power dissipation.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	36	V
Power - Maximum	300	mW
Tolerance	±5.56%	%
Impedance (Maximum)	90	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 25.2 V
Voltage - Forward (Maximum) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BZX84C36 is determined by strict equivalence across the following critical parameters:

Zener Voltage (Vz): 36 V nominal
Power Dissipation (Pmax): 300 mW
Package Type: SOT-23 surface mount
Impedance (Zzt): 90 Ohms maximum
Reverse Leakage Current: 100 nA @ 25.2 V
Forward Voltage: 900 mV @ 10 mA
Operating Temperature Range: -65°C to 150°C
Compliance: RoHS3 and REACH requirements

Substitute parts are grouped into two categories based on tolerance specification:

Category 1 - Standard Tolerance (±5% to ±5.56%): Parts maintaining the original tolerance band, suitable for general-purpose voltage regulation applications.

Category 2 - Tight Tolerance (±2%): Parts with enhanced tolerance specification and automotive-grade qualification (AEC-Q101), suitable for precision voltage reference applications and automotive environments.

All substitute parts maintain identical electrical performance across the specified operating range and are packaged in equivalent SOT-23 surface mount configurations.

Parameter Comparison

Parameter	BZX84C36	BZX84C36 RFG	BZX84C36Q-7-F	BZX84B36Q-7-F
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Diodes Incorporated	Diodes Incorporated
Voltage - Zener (Nom)	36 V	36 V	36 V	36 V
Power - Max	300 mW	300 mW	300 mW	300 mW
Tolerance	±5.56%	±5%	±5.56%	±2%
Impedance (Max)	90 Ohms	90 Ohms	90 Ohms	90 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 25.2 V	100 nA @ 25.2 V	100 nA @ 25.2 V	100 nA @ 25.2 V
Voltage - Forward (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Grade	—	—	Automotive	Automotive
Qualification	—	—	AEC-Q101	AEC-Q101
Inventory (Pcs)	2100	6875	35100	874

Engineering Selection Recommendations

BZX84C36 RFG (Taiwan Semiconductor Corporation): This part is a direct parametric equivalent with improved tolerance specification (±5% versus ±5.56%) and higher inventory availability (6875 pieces). Both parts are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical characteristics. Selection is appropriate for applications where supply continuity is prioritized and tolerance improvement is beneficial.

BZX84C36Q-7-F (Diodes Incorporated): This part maintains the original tolerance specification (±5.56%) and offers the highest inventory level (35100 pieces). It carries automotive-grade qualification (AEC-Q101) and is suitable for both commercial and automotive applications. The part is manufactured by Diodes Incorporated and provides cross-manufacturer redundancy.

BZX84B36Q-7-F (Diodes Incorporated): This part features tight tolerance specification (±2%) and automotive-grade qualification (AEC-Q101). Selection is appropriate for precision voltage reference applications and automotive environments where enhanced tolerance performance is required. Inventory availability is lower (874 pieces) compared to other substitutes.

All substitute parts are active-status products with RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance across global markets.

Frequently Asked Questions (FAQ)

Q: Can BZX84C36 RFG be used as a direct replacement for BZX84C36?

A: Yes. Both parts share identical zener voltage (36 V), power rating (300 mW), impedance (90 Ohms), reverse leakage current (100 nA @ 25.2 V), forward voltage (900 mV @ 10 mA), operating temperature range (-65°C to 150°C), and SOT-23 package configuration. The BZX84C36 RFG offers improved tolerance (±5% versus ±5.56%).

Q: What is the difference between BZX84C36Q-7-F and BZX84B36Q-7-F?

A: Both parts are manufactured by Diodes Incorporated and share identical electrical parameters. The primary difference is tolerance specification: BZX84C36Q-7-F maintains ±5.56% tolerance, while BZX84B36Q-7-F provides tighter ±2% tolerance. Both carry AEC-Q101 automotive qualification.

Q: Are all substitute parts suitable for automotive applications?

A: BZX84C36Q-7-F and BZX84B36Q-7-F carry AEC-Q101 automotive qualification. BZX84C36 and BZX84C36 RFG do not specify automotive qualification but are RoHS3 compliant and suitable for commercial applications.

Q: Do all parts use the same SOT-23 package?

A: Yes. All parts use the SOT-23 surface mount package (TO-236-3, SC-59, SOT-23-3 designations). Pin configuration and footprint are identical across all substitute parts.

Q: What is the significance of tolerance differences between these parts?

A: Tolerance specification defines the acceptable deviation from the nominal 36 V zener voltage. Standard tolerance (±5% to ±5.56%) is suitable for general voltage regulation. Tight tolerance (±2%) is required for precision voltage reference applications where voltage accuracy is critical.

Q: Are all parts RoHS3 compliant?

A: Yes. All parts listed—BZX84C36, BZX84C36 RFG, BZX84C36Q-7-F, and BZX84B36Q-7-F—are RoHS3 compliant and REACH unaffected.

Q: Which substitute part offers the best inventory availability?

A: BZX84C36Q-7-F offers the highest inventory level at 35100 pieces, followed by BZX84C36 RFG at 6875 pieces.

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