BZX84C13-TP Equivalent & Substitute Parts

Part Overview

The BZX84C13-TP is a Zener diode manufactured by Micro Commercial Co, rated at 13 V nominal with 350 mW maximum power dissipation in a surface mount SOT-23 package. This component is classified as Active and is ROHS3 compliant. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when specific automotive qualifications are mandated for application requirements.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	13 V
Power - Max	350 mW
Tolerance	±5%
Impedance (Max)	30 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 8 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA
Operating Temperature	-55°C ~ 150°C
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BZX84C13-TP is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Zener (Nom): Must equal 13 V
Package / Case: Must be TO-236-3, SC-59, or SOT-23-3 compatible
Mounting Type: Must be Surface Mount
Impedance (Max): Must equal 30 Ohms
Current - Reverse Leakage @ Vr: Must equal 100 nA @ 8 V
Voltage - Forward (Vf) (Max) @ If: Must equal 900 mV @ 10 mA

Secondary Substitution Considerations:

Power - Max: Substitute parts may have equal or greater power rating (350 mW or higher)
Tolerance: Substitute parts may have equal or tighter tolerance (±5% or better)
Operating Temperature: Substitute parts may have equal or extended temperature range
Product Status: Active parts are preferred; Obsolete parts require justification
Compliance: ROHS3 compliance and automotive qualifications (AEC-Q101) are available in substitute options

All substitute parts listed maintain electrical equivalence within the specified parameters and are compatible with the original BZX84C13-TP footprint and function.

Parameter Comparison

Part Number	Manufacturer	Vz (V)	Power (mW)	Tolerance	Zzt (Ohms)	Temp Range (°C)	Package	Status	AEC-Q101
BZX84C13-TP	Micro Commercial Co	13	350	±5%	30	-55 ~ 150	SOT-23-3	Active	No
BZX84C13-7-F	Diodes Incorporated	13	300	±6%	30	-65 ~ 150	SOT-23-3	Active	Yes
BZX84-A13,215	Nexperia USA Inc.	13	250	±1%	30	-65 ~ 150	TO-236AB	Active	Yes
BZX84-B13,215	NXP Semiconductors	13	250	±2%	30	-65 ~ 150	TO-236AB	Active	Yes
BZX84-B13,235	Nexperia USA Inc.	13	250	±2%	30	-65 ~ 150	TO-236AB	Active	Yes
BZX84-C13,215	Nexperia USA Inc.	13	250	±5%	30	-65 ~ 150	TO-236AB	Active	Yes
BZX84-C13,235	NXP Semiconductors	13	250	±5%	30	-65 ~ 150	TO-236AB	Active	Yes
BZX84B13-7-F	Diodes Incorporated	13	300	±2%	30	-65 ~ 150	SOT-23-3	Active	No
BZX84B13-HE3-08	Vishay General Semiconductor	13	300	±2%	30	-55 ~ 150	SOT-23-3	Obsolete	Yes
BZX84B13Q-7-F	Diodes Incorporated	13	300	±2%	30	-65 ~ 150	SOT-23-3	Active	Yes
BZX84C13-E3-08	Vishay General Semiconductor	13	300	±5%	30	-55 ~ 150	SOT-23-3	Active	No

Engineering Selection Recommendations

Direct Electrical Equivalents (Highest Compatibility):

Parts BZX84C13-7-F, BZX84B13-7-F, BZX84B13Q-7-F, and BZX84C13-E3-08 maintain the SOT-23-3 package format identical to the BZX84C13-TP. These parts are electrically compatible with matching impedance, reverse leakage current, and forward voltage characteristics. BZX84C13-7-F and BZX84B13Q-7-F are recommended for applications requiring automotive qualification (AEC-Q101). BZX84C13-E3-08 is suitable for non-automotive applications with matching tolerance specifications.

Power-Reduced Alternatives (TO-236AB Package):

Parts BZX84-A13,215, BZX84-B13,215, BZX84-B13,235, BZX84-C13,215, and BZX84-C13,235 operate at 250 mW maximum power, which is lower than the original 350 mW specification. These parts are suitable for applications where power dissipation does not exceed 250 mW. All feature automotive qualification (AEC-Q101) and extended temperature range (-65°C to 150°C). Selection among these should be based on tolerance requirements: BZX84-A13,215 for ±1% tolerance, BZX84-B13 variants for ±2% tolerance, and BZX84-C13 variants for ±5% tolerance.

Obsolete Part Consideration:

BZX84B13-HE3-08 is classified as Obsolete and should not be selected for new designs. This part is listed for reference only in legacy system documentation.

Compliance and Certification:

All recommended substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Automotive-qualified parts (AEC-Q101) are available across multiple manufacturers and should be prioritized for safety-critical or automotive applications.

Frequently Asked Questions (FAQ)

Q: Can BZX84C13-TP be replaced with a lower power-rated part such as BZX84-B13,215?

A: Substitution is permissible only if the application circuit does not require power dissipation exceeding 250 mW. The BZX84-B13,215 is rated at 250 mW compared to the original 350 mW. Circuit analysis must confirm that the lower power rating is sufficient for the intended application.

Q: What is the difference between SOT-23-3 and TO-236AB packages?

A: Both designations refer to the same physical package format (TO-236-3, SC-59). The terminology differs by manufacturer convention but the packages are mechanically and electrically compatible. Parts specified as SOT-23-3 or TO-236AB can be used interchangeably in the same PCB footprint.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed in this reference are ROHS3 compliant. Moisture Sensitivity Level (MSL) is rated as 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute part should be selected for automotive applications?

A: For automotive applications, select parts with AEC-Q101 qualification. Recommended options include BZX84C13-7-F, BZX84-A13,215, BZX84-B13,215, BZX84-B13,235, BZX84-C13,215, BZX84-C13,235, BZX84B13Q-7-F, and BZX84B13-HE3-08. BZX84B13-HE3-08 is Obsolete and should not be used in new designs.

Q: What tolerance options are available among substitute parts?

A: Substitute parts are available with tolerances of ±1% (BZX84-A13,215), ±2% (BZX84-B13 variants and BZX84B13Q-7-F), ±5% (BZX84C13-7-F, BZX84-C13 variants, and BZX84C13-E3-08), and ±6% (BZX84C13-7-F). Selection should match the tolerance requirement of the original application circuit.

Q: Is BZX84B13-HE3-08 suitable for new product designs?

A: No. BZX84B13-HE3-08 is classified as Obsolete and is not recommended for new designs. Active alternatives with equivalent specifications are available from multiple manufacturers.

Q: What is the operating temperature range difference between the original part and substitutes?

A: The BZX84C13-TP operates from -55°C to 150°C. Most substitute parts extend the lower temperature limit to -65°C, providing a wider operating range. BZX84B13-HE3-08 and BZX84C13-E3-08 maintain the -55°C lower limit. Application requirements determine whether the extended range is necessary.

Q: Can parts with different impedance values be substituted?

A: No. All listed substitute parts maintain the maximum impedance specification of 30 Ohms, matching the original BZX84C13-TP. Impedance is a critical parameter for voltage regulation performance and must not be altered.

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