Request Quote
(Ships tomorrow)
SMB2EZ15D5-TP Equivalent & Substitute Parts
Part Overview
The SMB2EZ15D5-TP is a Zener diode rated at 15 V, 2 W, manufactured by Micro Commercial Co in the DO-214AA (SMB) surface mount package. This component is classified as obsolete, though 1013 pieces remain in stock. The part operates across a temperature range of -55°C to 150°C and complies with ROHS3 standards.
Equivalent and substitute parts are necessary due to the obsolete status of the SMB2EZ15D5-TP. Active alternatives with identical or superior electrical characteristics are available from multiple manufacturers, ensuring design continuity and long-term supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nominal) | 15 | V |
| Power - Maximum | 2 | W |
| Tolerance | ±5% | % |
| Impedance (Maximum) | 7 | Ohms |
| Current - Reverse Leakage @ Vr | 500 | nA @ 11.4 V |
| Voltage - Forward (Maximum) @ If | 1.5 | V @ 200 mA |
| Operating Temperature Range | -55 to 150 | °C |
| Mounting Type | Surface Mount | |
| Package / Case | DO-214AA, SMB | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the SMB2EZ15D5-TP is determined by the following critical parameters:
Primary Substitution Criteria:
- Voltage - Zener (Nominal): 15 V (exact match required)
- Tolerance: ±5% (exact match required)
- Package / Case: DO-214AA, SMB (exact match required)
- Mounting Type: Surface Mount (exact match required)
- Operating Temperature Range: -55°C to 150°C minimum (equal or wider range acceptable)
- RoHS Status: ROHS3 Compliant (compliance required)
Secondary Compatibility Parameters:
- Power - Maximum: 2 W or greater (equal or higher rating acceptable)
- Impedance (Maximum): 7 Ohms or lower (equal or lower acceptable)
- Current - Reverse Leakage @ Vr: 500 nA or lower (equal or lower acceptable)
- Voltage - Forward (Maximum) @ If: 1.5 V or lower (equal or lower acceptable)
Substitute parts are grouped into two categories:
Category 1 - Direct Parametric Equivalents (2 W Power Rating): Parts with identical 2 W power rating and matching electrical specifications. These provide direct replacement capability without circuit redesign.
Category 2 - Enhanced Substitutes (3 W Power Rating): Parts with 3 W power rating, providing increased thermal headroom and margin. These are electrically compatible and offer superior performance characteristics while maintaining all other critical parameters.
Category 3 - Reduced Power Alternatives (550 mW to 1.5 W Power Rating): Parts with lower power ratings. These are electrically compatible but suitable only for applications where the reduced power dissipation capacity is acceptable.
Parameter Comparison
| Part Number | Manufacturer | Vz (V) | Power (W) | Tolerance | Zzt (Ohms) | Reverse Leakage @ Vr | Vf (Max) @ If | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| SMB2EZ15D5-TP | Micro Commercial Co | 15 | 2 | ±5% | 7 | 500 nA @ 11.4 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Obsolete |
| 1SMB2EZ15_R1_00001 | Panjit International Inc. | 15 | 2 | ±5% | 7 | 500 nA @ 11.4 V | Not specified | -55 to 150 | DO-214AA (SMB) | Active |
| SMBJ5929BE3/TR13 | Microchip Technology | 15 | 2 | ±5% | 9 | 1 µA @ 11.4 V | 1.2 V @ 200 mA | -65 to 150 | DO-214AA (SMB) | Active |
| 3SMBJ5929B-TP | Micro Commercial Co | 15 | 3 | ±5% | 9 | 1 µA @ 11.4 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Active |
| SMBZ5929B-E3/52 | Vishay General Semiconductor | 15 | 3 | ±5% | 9 | 1 µA @ 11.4 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Active |
| SMBZ5929B-E3/5B | Vishay General Semiconductor | 15 | 3 | ±5% | 9 | 1 µA @ 11.4 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Active |
| SMZJ3793B-E3/5B | Vishay General Semiconductor | 15 | 1.5 | ±5% | 9 | 5 µA @ 11.4 V | Not specified | -55 to 150 | DO-214AA (SMB) | Active |
| SMZJ3793B-M3/52 | Vishay General Semiconductor | 15 | 1.5 | ±5% | 9 | 5 µA @ 11.4 V | Not specified | -55 to 150 | DO-214AA (SMB) | Active |
| SMZJ3793B-M3/5B | Vishay General Semiconductor | 15 | 1.5 | ±5% | 9 | 5 µA @ 11.4 V | Not specified | -55 to 150 | DO-214AA (SMB) | Active |
| SMBZ5929B-M3/52 | Vishay General Semiconductor | 15 | 0.55 | ±5% | 7 | 1 µA @ 9.9 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Active |
| SMBZ5929B-M3/5B | Vishay General Semiconductor | 15 | 0.55 | ±5% | 7 | 1 µA @ 9.9 V | 1.5 V @ 200 mA | -55 to 150 | DO-214AA (SMB) | Active |
Engineering Selection Recommendations
Recommended Primary Substitutes (Active Status, Identical Specifications):
The 1SMB2EZ15_R1_00001 from Panjit International Inc. is the preferred direct replacement. This part maintains identical electrical specifications to the SMB2EZ15D5-TP, including 2 W power rating, 7 Ohms maximum impedance, and 500 nA reverse leakage current. The part is currently active with 2197 pieces in stock, ROHS3 compliant, and operates across the same -55°C to 150°C temperature range.
The SMBJ5929BE3/TR13 from Microchip Technology is an alternative direct replacement with active status. This part provides identical 15 V, 2 W specifications and extends the operating temperature range to -65°C to 150°C. The impedance increases to 9 Ohms and reverse leakage to 1 µA, with forward voltage reduced to 1.2 V at 200 mA. This part is suitable for applications requiring extended low-temperature operation.
Recommended Secondary Substitutes (Enhanced Power Rating):
The 3SMBJ5929B-TP from Micro Commercial Co and SMBZ5929B-E3/52 or SMBZ5929B-E3/5B from Vishay General Semiconductor provide 3 W power rating with identical 15 V nominal voltage and ±5% tolerance. These parts offer increased thermal margin and are suitable for applications where higher power dissipation capacity is beneficial. All three parts are active with ROHS3 compliance.
Alternative Substitutes (Reduced Power Rating):
The SMZJ3793B series (E3/5B, M3/52, M3/5B) from Vishay General Semiconductor provides 1.5 W power rating. These parts are suitable only for applications where the reduced power dissipation capacity is acceptable. The SMBZ5929B-M3/52 and SMBZ5929B-M3/5B provide 550 mW power rating and are suitable only for low-power applications.
Compliance and Supply Chain Considerations:
All recommended substitutes maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). All substitute parts are currently active in production, ensuring long-term availability and supply chain stability. The SMB2EZ15D5-TP obsolete status necessitates transition to one of these active alternatives.
Frequently Asked Questions (FAQ)
Q: Can the 1SMB2EZ15_R1_00001 directly replace the SMB2EZ15D5-TP without circuit modification?
A: Yes. The 1SMB2EZ15_R1_00001 maintains identical electrical specifications: 15 V nominal voltage, ±5% tolerance, 2 W power rating, 7 Ohms maximum impedance, and 500 nA reverse leakage current. Both parts use the DO-214AA (SMB) surface mount package and operate across -55°C to 150°C. No circuit redesign is required.
Q: What is the difference between the 2 W and 3 W rated substitutes?
A: The primary difference is maximum power dissipation capacity. The 3 W rated parts (3SMBJ5929B-TP, SMBZ5929B-E3/52, SMBZ5929B-E3/5B) provide 50% greater thermal headroom than the original 2 W part. All other electrical parameters remain compatible. The 3 W alternatives are suitable for applications where higher power dissipation is anticipated or where thermal margin is desired.
Q: Are the SMZJ3793B series parts suitable replacements?
A: The SMZJ3793B series (1.5 W rating) is electrically compatible but provides reduced power dissipation capacity compared to the original 2 W part. These parts are suitable only for applications where the 1.5 W power rating is sufficient. The reverse leakage current increases to 5 µA at 11.4 V, compared to 500 nA in the original part.
Q: What is the significance of the operating temperature range difference in the SMBJ5929BE3/TR13?
A: The SMBJ5929BE3/TR13 extends the minimum operating temperature to -65°C, compared to -55°C in the original part. This extended range is beneficial for applications requiring operation in extreme cold environments. The maximum temperature remains 150°C. All other electrical specifications remain compatible.
Q: Do all substitute parts maintain the same package footprint?
A: Yes. All substitute parts listed use the DO-214AA (SMB) surface mount package, ensuring identical PCB footprint and assembly compatibility with the original SMB2EZ15D5-TP.
Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?
A: Tape & Reel (TR) packaging is supplied on continuous reels suitable for high-volume automated assembly. Cut Tape (CT) packaging is supplied in shorter tape segments suitable for lower-volume or manual assembly. Both formats use identical component specifications and are mechanically compatible with standard pick-and-place equipment.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed maintain ROHS3 compliance, matching the environmental and regulatory requirements of the original SMB2EZ15D5-TP.
Q: Which substitute offers the best long-term supply availability?
A: The 3SMBJ5929B-TP from Micro Commercial Co has the highest current inventory (22615 pieces) and active production status, providing the strongest long-term supply assurance. The 1SMB2EZ15_R1_00001 from Panjit International Inc. is the second choice with 2197 pieces in stock.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts