BZT52C20LP-TP Equivalent & Substitute Parts

Part Overview

The BZT52C20LP-TP is a Zener diode rated at 20 V nominal voltage with 250 mW power dissipation, manufactured by Micro Commercial Co in SOD-882 surface mount package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical performance within the specified tolerance and thermal operating range while meeting current component availability and compliance standards.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	20	V
Power - Max	250	mW
Tolerance	±6%	—
Impedance (Max)	55	Ohms
Current - Reverse Leakage @ Vr	100	nA @ 14 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOD-882	—

Substitute Part Grouping Explanation

Substitution of the BZT52C20LP-TP is determined by the following critical parameters:

Electrical Equivalence Criteria:

Zener voltage: 20 V nominal
Power rating: 250 mW maximum
Impedance: 55 Ohms maximum
Reverse leakage current: 100 nA @ 14 V or lower
Forward voltage: 900 mV @ 10 mA maximum
Operating temperature range: -65°C to 150°C minimum

Mechanical Compatibility:

Surface mount technology
SOD-882 package footprint

Compliance Requirements:

RoHS3 compliant
REACH unaffected status

The substitute parts BZX884-B20,315 and BZX884-C20,315 meet all electrical parameters and mechanical requirements. Both are manufactured by Nexperia USA Inc. and carry active product status with automotive-grade qualification (AEC-Q100), providing superior availability and reliability assurance compared to the obsolete BZT52C20LP-TP.

Parameter Comparison

Parameter	BZT52C20LP-TP	BZX884-B20,315	BZX884-C20,315
Manufacturer	Micro Commercial Co	Nexperia USA Inc.	Nexperia USA Inc.
Product Status	Obsolete	Active	Active
Voltage - Zener (Nom)	20 V	20 V	20 V
Tolerance	±6%	±2%	±5%
Power - Max	250 mW	250 mW	250 mW
Impedance (Max)	55 Ohms	55 Ohms	55 Ohms
Current - Reverse Leakage @ Vr	100 nA @ 14 V	50 nA @ 14 V	50 nA @ 14 V
Voltage - Forward (Vf) (Max) @ If	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SOD-882	SOD-882	SOD-882
Grade	—	Automotive	Automotive
Qualification	—	AEC-Q100	AEC-Q100
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

BZX884-B20,315 Selection Criteria: This substitute provides the tightest tolerance specification at ±2%, compared to the original ±6%. The lower reverse leakage current (50 nA vs. 100 nA) represents improved performance. Active product status ensures long-term availability. Automotive-grade qualification and AEC-Q100 certification provide enhanced reliability documentation suitable for mission-critical applications. Select this part when voltage regulation precision is prioritized.

BZX884-C20,315 Selection Criteria: This substitute maintains tolerance specification at ±5%, closely matching the original ±6% tolerance band. Reverse leakage current is reduced to 50 nA, providing performance margin. Active product status and automotive-grade qualification with AEC-Q100 certification ensure supply chain continuity and reliability assurance. Select this part for direct functional replacement with improved availability.

Common Advantages of Both Substitutes: Both Nexperia alternatives are active products with established supply chains, eliminating obsolescence risk. Automotive-grade qualification and AEC-Q100 certification provide third-party validation of manufacturing processes and reliability testing. All electrical parameters meet or exceed the original BZT52C20LP-TP specifications. SOD-882 package compatibility ensures direct footprint substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can BZX884-B20,315 or BZX884-C20,315 be used as direct replacements for BZT52C20LP-TP?

A: Yes. Both substitute parts maintain identical zener voltage (20 V), power rating (250 mW), impedance (55 Ohms maximum), forward voltage (900 mV @ 10 mA), and operating temperature range (-65°C to 150°C). All three components use SOD-882 surface mount packaging with identical footprints. Electrical performance of the substitutes meets or exceeds the original specification.

Q: What is the difference between BZX884-B20,315 and BZX884-C20,315?

A: The primary difference is tolerance specification. BZX884-B20,315 provides ±2% tolerance, while BZX884-C20,315 provides ±5% tolerance. Both maintain identical zener voltage, power rating, impedance, and reverse leakage current (50 nA @ 14 V). Selection depends on voltage regulation precision requirements in the application circuit.

Q: Why is the BZT52C20LP-TP classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. This classification necessitates transition to active alternatives to ensure component availability for new production runs and long-term supply chain stability.

Q: Are the substitute parts automotive-qualified?

A: Yes. Both BZX884-B20,315 and BZX884-C20,315 carry automotive-grade designation with AEC-Q100 qualification, indicating compliance with automotive industry reliability and testing standards.

Q: Do the substitute parts require PCB layout modifications?

A: No. All three components use SOD-882 surface mount package with identical footprints and pinout. Direct substitution on existing PCB layouts is supported without design changes.

Q: What is the reverse leakage current difference between the original and substitutes?

A: The original BZT52C20LP-TP specifies 100 nA @ 14 V. Both substitutes specify 50 nA @ 14 V, representing a 50% reduction in reverse leakage current. This provides improved performance margin and lower standby current consumption.

Q: Are all parts RoHS3 compliant?

A: Yes. BZT52C20LP-TP, BZX884-B20,315, and BZX884-C20,315 are all ROHS3 compliant with moisture sensitivity level 1 (unlimited), indicating no special handling requirements during storage or assembly.

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