BZX84C13-7 Equivalent & Substitute Parts

Part Overview

The BZX84C13-7 is a Zener diode rated at 13 V nominal with 300 mW maximum power dissipation in a surface mount SOT-23-3 package. Manufactured by Diodes Incorporated, this component is classified as discontinued at DiGi Electronics, which necessitates identification of equivalent and substitute parts for ongoing design requirements and production continuity. The part operates across a temperature range of -65°C to 150°C with ±6% voltage tolerance and is RoHS non-compliant.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	13	V
Tolerance	±6%	—
Power - Maximum	300	mW
Impedance (Maximum)	30	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 8 V
Voltage - Forward (Maximum) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-3	—

Substitute Part Grouping Explanation

Substitution of the BZX84C13-7 is determined by the following critical parameters: nominal Zener voltage of 13 V, maximum power rating, package compatibility (SOT-23-3 or equivalent TO-236-3), impedance characteristics, and operating temperature range. Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Substitutes: Parts with identical electrical specifications and the same manufacturer (Diodes Incorporated), differing only in packaging format or product status.

Parametric Equivalents: Parts from the same manufacturer with matching nominal voltage and package type but with variations in tolerance, power rating, or temperature range that remain functionally compatible within the specified operating envelope.

Manufacturer-Recommended Alternatives: Parts from alternative manufacturers (Nexperia USA Inc., NXP Semiconductors, Micro Commercial Co) that meet or exceed the electrical requirements with equivalent or superior compliance certifications.

The key parameters governing substitution are: Voltage - Zener (Nom) = 13 V, Power - Max ≥ 300 mW, Package = SOT-23-3 or TO-236-3, Impedance (Max) = 30 Ohms, Operating Temperature ≥ -65°C to 150°C.

Parameter Comparison

Part Number	Manufacturer	Voltage (V)	Tolerance	Power (mW)	Impedance (Ω)	Temp Range (°C)	Package	Product Status	RoHS
BZX84C13-7	Diodes Inc.	13	±6%	300	30	-65 to 150	SOT-23-3	Discontinued	Non-compliant
BZX84C13-7-F	Diodes Inc.	13	±6%	300	30	-65 to 150	SOT-23-3	Active	ROHS3 Compliant
BZX84B13-7-F	Diodes Inc.	13	±2%	300	30	-65 to 150	SOT-23-3	Active	ROHS3 Compliant
BZX84C13Q-7-F	Diodes Inc.	13	±6%	300	30	-65 to 150	SOT-23-3	Active	ROHS3 Compliant
BZX84-A13,215	Nexperia USA	13	±1%	250	30	-65 to 150	TO-236AB	Active	ROHS3 Compliant
BZX84-B13,215	Nexperia USA	13	±2%	250	30	-65 to 150	TO-236AB	Active	ROHS3 Compliant
BZX84-B13,235	NXP Semi.	13	±2%	250	30	-65 to 150	TO-236AB	Active	ROHS3 Compliant
BZX84-C13,215	Nexperia USA	13	±5%	250	30	-65 to 150	TO-236AB	Active	ROHS3 Compliant
BZX84-C13,235	NXP Semi.	13	±5%	250	30	-65 to 150	TO-236AB	Active	ROHS3 Compliant
BZX84C13-TP	Micro Comm.	13	±5%	350	30	-55 to 150	SOT-23	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): BZX84C13-7-F from Diodes Incorporated is the direct functional equivalent with identical electrical specifications and package format. This part is currently active in production with ROHS3 compliance, addressing the discontinuation status of the original BZX84C13-7. Inventory availability is substantial at 116,400 units.

Enhanced Tolerance Alternative: BZX84B13-7-F offers improved voltage tolerance (±2% versus ±6%) while maintaining identical power rating and package specifications. This part is suitable for applications requiring tighter voltage regulation and is ROHS3 compliant with active product status.

Automotive-Qualified Alternatives: BZX84C13Q-7-F from Diodes Incorporated carries AEC-Q101 automotive qualification with ±6% tolerance and 300 mW power rating. This part is appropriate for automotive and high-reliability applications requiring formal qualification documentation.

Cross-Manufacturer Alternatives: The Nexperia/NXP BZX84 series (BZX84-A13,215; BZX84-B13,215; BZX84-B13,235; BZX84-C13,215; BZX84-C13,235) provides equivalent 13 V nominal voltage with TO-236AB package compatibility. These parts feature reduced power ratings (250 mW) and improved tolerance specifications (±1% to ±5%). All are ROHS3 compliant and AEC-Q101 qualified. Selection among these variants depends on tolerance and power margin requirements.

Higher Power Alternative: BZX84C13-TP from Micro Commercial Co provides 350 mW power rating with ±5% tolerance, offering additional thermal margin for power-dissipation-critical applications. Operating temperature range is -55°C to 150°C (reduced low-temperature specification).

Frequently Asked Questions (FAQ)

Q: Can BZX84C13-7-F be used as a direct replacement for BZX84C13-7?

A: Yes. BZX84C13-7-F is electrically and mechanically identical to BZX84C13-7, with matching 13 V nominal voltage, 300 mW power rating, ±6% tolerance, and SOT-23-3 package. The primary difference is product status (active versus discontinued) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What is the difference between BZX84C13-7-F and BZX84B13-7-F?

A: Both parts share identical power rating (300 mW), package (SOT-23-3), and nominal voltage (13 V). The distinction is voltage tolerance: BZX84C13-7-F has ±6% tolerance, while BZX84B13-7-F has ±2% tolerance. BZX84B13-7-F is appropriate for applications requiring tighter voltage regulation.

Q: Are Nexperia BZX84-B13 and BZX84-C13 series parts compatible with the original BZX84C13-7?

A: These parts are functionally compatible with respect to nominal voltage (13 V) and impedance (30 Ohms). However, they feature reduced power rating (250 mW versus 300 mW) and different package designation (TO-236AB versus SOT-23-3, though both are mechanically equivalent). Tolerance specifications vary (±1% to ±5%). Compatibility depends on application power dissipation requirements.

Q: What is the significance of the AEC-Q101 qualification on BZX84C13Q-7-F and Nexperia parts?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. Parts carrying this qualification have undergone formal reliability testing and are approved for automotive applications. This certification is relevant only if the application requires automotive-grade components.

Q: Can BZX84C13-TP be used in place of BZX84C13-7?

A: BZX84C13-TP is functionally compatible with respect to nominal voltage (13 V), impedance (30 Ohms), and tolerance (±5%). The primary differences are higher power rating (350 mW versus 300 mW) and reduced low-temperature operating limit (-55°C versus -65°C). This part is suitable for applications operating above -55°C with higher power dissipation margins.

Q: What packaging differences exist among the substitute parts?

A: The original BZX84C13-7 and its direct substitutes (BZX84C13-7-F, BZX84B13-7-F, BZX84C13Q-7-F) use SOT-23-3 package. Nexperia/NXP alternatives use TO-236AB package designation. Micro Commercial BZX84C13-TP uses SOT-23 package. All three package designations (SOT-23-3, TO-236AB, SOT-23) are mechanically and electrically equivalent for this component category.

Q: Which substitute part offers the best compliance profile?

A: All active substitute parts listed are ROHS3 compliant. Nexperia/NXP and Diodes Incorporated parts carrying AEC-Q101 qualification (BZX84C13Q-7-F, BZX84-A13,215, BZX84-B13,215, BZX84-B13,235, BZX84-C13,215, BZX84-C13,235) provide formal automotive qualification. Selection depends on specific application compliance requirements.

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