SMZJ3789BHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMZJ3789BHE3_A/I is a Zener diode rated at 10 V, 1.5 W, housed in a DO-214AA (SMB) surface mount package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as Obsolete. Due to its obsolete product status, equivalent substitute parts with identical electrical and mechanical specifications are available from the same manufacturer in Active product status, ensuring continued design support and supply chain continuity.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	10 V
Tolerance	±5%
Power - Max	1.5 W
Impedance (Max)	5 Ohms
Current - Reverse Leakage @ Vr	50 µA @ 7.6 V
Operating Temperature Range	-55°C ~ 150°C
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

All substitute parts listed maintain identical electrical and mechanical specifications to the main part SMZJ3789BHE3_A/I. Substitution is based on the following critical parameters:

Voltage - Zener (Nom): 10 V
Tolerance: ±5%
Power - Max: 1.5 W
Impedance (Max): 5 Ohms
Current - Reverse Leakage @ Vr: 50 µA @ 7.6 V
Operating Temperature Range: -55°C ~ 150°C
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts differ only in packaging format (Tape & Reel) and product status (Active vs. Obsolete), with no variation in electrical performance or thermal characteristics.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Zzt (Max)	Ir @ Vr	Temp Range	Package	Product Status	Inventory
SMZJ3789BHE3_A/I	Vishay	10 V	±5%	1.5 W	5 Ohms	50 µA @ 7.6 V	-55°C ~ 150°C	DO-214AA	Obsolete	799 Pcs
SMZJ3789B-E3/52	Vishay	10 V	±5%	1.5 W	5 Ohms	50 µA @ 7.6 V	-55°C ~ 150°C	DO-214AA	Active	3375 Pcs
SMZJ3789B-E3/5B	Vishay	10 V	±5%	1.5 W	5 Ohms	50 µA @ 7.6 V	-55°C ~ 150°C	DO-214AA	Active	700 Pcs
SMZJ3789B-M3/52	Vishay	10 V	±5%	1.5 W	5 Ohms	50 µA @ 7.6 V	-55°C ~ 150°C	DO-214AA	Active	14509 Pcs
SMZJ3789B-M3/5B	Vishay	10 V	±5%	1.5 W	5 Ohms	50 µA @ 7.6 V	-55°C ~ 150°C	DO-214AA	Active	894 Pcs

Engineering Selection Recommendations

All substitute parts are manufactured by Vishay General Semiconductor - Diodes Division and maintain full electrical and mechanical compatibility with the SMZJ3789BHE3_A/I. The primary distinction is product status: the main part is Obsolete, while all substitutes are Active.

For new designs and ongoing production, selection should prioritize Active status parts to ensure long-term supply availability and manufacturer support. All substitute parts carry identical RoHS3 compliance, AEC-Q101 automotive qualification, and Moisture Sensitivity Level 1 (Unlimited) ratings.

SMZJ3789B-M3/52 offers the highest inventory availability at 14,509 pieces, providing optimal supply chain security. SMZJ3789B-E3/52 provides the second-highest inventory level at 3,375 pieces. Both parts are suitable for direct substitution in automotive and industrial applications requiring 10 V, 1.5 W Zener diode functionality in DO-214AA surface mount packaging.

Frequently Asked Questions (FAQ)

Q: Can SMZJ3789B-E3/52, SMZJ3789B-E3/5B, SMZJ3789B-M3/52, and SMZJ3789B-M3/5B be used interchangeably with SMZJ3789BHE3_A/I?

A: Yes. All substitute parts maintain identical electrical specifications (10 V nominal Zener voltage, ±5% tolerance, 1.5 W maximum power, 5 Ohms maximum impedance, 50 µA reverse leakage at 7.6 V) and operate across the same temperature range (-55°C to 150°C). They are housed in the same DO-214AA (SMB) surface mount package with identical pinout and footprint.

Q: What is the difference between the substitute part numbers?

A: The substitute parts differ in packaging format designation only. The suffix codes (E3/52, E3/5B, M3/52, M3/5B) indicate different tape and reel configurations for automated assembly. All parts are electrically and mechanically identical and suitable for direct substitution.

Q: Why is the main part SMZJ3789BHE3_A/I marked as Obsolete?

A: The Obsolete status indicates that the manufacturer has discontinued active production and support for this specific part number variant. Equivalent Active alternatives from the same manufacturer are available with identical performance characteristics.

Q: Are all substitute parts RoHS3 compliant and AEC-Q101 qualified?

A: Yes. All substitute parts carry ROHS3 compliance and AEC-Q101 automotive qualification, matching the main part's certifications. Moisture Sensitivity Level is 1 (Unlimited) for all parts.

Q: Which substitute part should be selected for new designs?

A: Any of the four Active substitute parts are suitable for new designs. Selection may be based on inventory availability, packaging preference, or supply chain requirements. SMZJ3789B-M3/52 offers the highest inventory level.

Q: Is there any performance difference between the substitute parts?

A: No. All substitute parts deliver identical electrical performance, thermal characteristics, and reliability. Differences exist only in packaging format and inventory levels.

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