DDZX16-13 Equivalent & Substitute Parts

Part Overview

The DDZX16-13 is a Zener diode manufactured by Diodes Incorporated, rated at 16 V nominal with 300 mW maximum power dissipation in a surface mount SOT-23-3 package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs while maintaining identical functional specifications.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	16	V
Tolerance	±3%	—
Power - Max	300	mW
Impedance (Max)	18	Ohms
Current - Reverse Leakage @ Vr	50	nA @ 12 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the DDZX16-13 is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 16 V nominal
Package type: SOT-23-3 surface mount
Operating temperature range: -65°C to 150°C minimum
RoHS3 compliance
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Parameters:

Power dissipation capacity: 300 mW or greater
Impedance (Zzt): 18 Ohms or lower
Reverse leakage current: 50 nA @ specified voltage or lower
Forward voltage: 900 mV @ 10 mA or lower
Tolerance: ±3% or tighter

Parts meeting all primary criteria and maintaining secondary parameter specifications within acceptable engineering margins are classified as direct substitutes. The DDZX16-7 (Diodes Incorporated) and BZX84C16LT1G (onsemi) satisfy these requirements with documented electrical equivalence.

Parameter Comparison

Parameter	DDZX16-13	DDZX16-7	BZX84C16LT1G
Manufacturer	Diodes Incorporated	Diodes Incorporated	onsemi
Voltage - Zener (Nom)	16 V	16 V	16 V
Tolerance	±3%	±3%	±6%
Power - Max	300 mW	300 mW	225 mW
Impedance (Max)	18 Ohms	18 Ohms	40 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 12 V	50 nA @ 12 V	50 nA @ 11.2 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature Range	-65 to 150°C	-65 to 150°C	-65 to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

DDZX16-7 (Diodes Incorporated): This part is a parametric equivalent to the DDZX16-13, sharing identical electrical specifications including 16 V nominal zener voltage, ±3% tolerance, 300 mW power rating, and 18 Ohms maximum impedance. Both parts are manufactured by Diodes Incorporated and maintain identical package, compliance, and moisture sensitivity classifications. Selection of DDZX16-7 introduces no electrical or mechanical trade-offs relative to DDZX16-13. This substitute is suitable for direct replacement in all applications where DDZX16-13 is specified.

BZX84C16LT1G (onsemi): This part maintains the 16 V nominal zener voltage, SOT-23-3 package, and operating temperature range of the DDZX16-13. However, the following parameter differences exist: tolerance is ±6% (versus ±3%), maximum power dissipation is 225 mW (versus 300 mW), and maximum impedance is 40 Ohms (versus 18 Ohms). The BZX84C16LT1G is suitable for applications where the relaxed tolerance, reduced power rating, and higher impedance do not conflict with circuit design requirements. This part is classified as a functional substitute with documented trade-offs in precision and power handling capability.

Both substitute parts maintain Active product status, ROHS3 compliance, and unlimited moisture sensitivity rating, ensuring regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DDZX16-7 be used as a direct replacement for DDZX16-13?

A: Yes. The DDZX16-7 is a parametric equivalent with identical electrical specifications: 16 V nominal zener voltage, ±3% tolerance, 300 mW power dissipation, 18 Ohms impedance, and identical package configuration (SOT-23-3). No circuit modifications or performance adjustments are required.

Q: What are the limitations of using BZX84C16LT1G as a substitute for DDZX16-13?

A: The BZX84C16LT1G has three documented parameter differences: tolerance of ±6% (versus ±3%), maximum power dissipation of 225 mW (versus 300 mW), and maximum impedance of 40 Ohms (versus 18 Ohms). Applications requiring tight voltage tolerance, high power dissipation, or low impedance characteristics must evaluate whether these differences are acceptable for the specific circuit design.

Q: Are all substitute parts available in the same packaging format?

A: Yes. DDZX16-13, DDZX16-7, and BZX84C16LT1G are all supplied in SOT-23-3 surface mount packages. PCB footprint compatibility is maintained across all three parts.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. DDZX16-13, DDZX16-7, and BZX84C16LT1G are all ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance is equivalent across all three parts.

Q: What is the operating temperature range for all substitute parts?

A: All three parts operate across the identical temperature range of -65°C to 150°C, ensuring thermal compatibility in equivalent applications.

Q: Which substitute part should be selected for maximum design flexibility?

A: DDZX16-7 provides maximum design flexibility as a true parametric equivalent with no electrical trade-offs. BZX84C16LT1G introduces documented parameter differences and should be selected only when those differences are acceptable for the specific application.

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