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Microchip Technology SMBG5352CE3/TR13
- Part No.:
- SMBG5352CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5352CE3/TR13.pdf
- Description:
- DIODE ZENER 15V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,697
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Product details
Overview
SMBG5352CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 15 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating, and DO-215AA gull-wing package-designed for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation.
For engineers reviewing the SMBG5352CE3/TR13 datasheet, SMBG5352CE3/TR13 pinout, SMBG5352CE3/TR13 application, or SMBG5352CE3/TR13 equivalent, key selection criteria include verified 15 V ±2% VZ at 75 mA IZT, 2.5 Ω dynamic impedance (ZZT), 315 mA maximum regulator current (IZM), and thermal resistance of 25 °C/W junction-to-lead-critical for stable operation under sustained load and surge conditions.
Technical Context
This device operates as a two-terminal silicon Zener diode in reverse-biased breakdown mode, delivering regulated voltage across its cathode–anode terminals when reverse current exceeds the knee point (IZK = 1.0 mA). Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation over operating current range (10–315 mA).
The DO-215AA gull-wing package enables visible solder joints and supports IPC/JEDEC Level 1 moisture sensitivity without dry pack. Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead), enabling 5 W dissipation only when lead temperature (TL) remains ≤25 °C-requiring adequate PCB copper area or heatsinking for higher ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±2% at 75 mA test current-ensures tight regulation accuracy for feedback references and clamp thresholds. |
| Power Dissipation (PD) | 5.0 W at TL ≤ 25 °C-requires thermal management via PCB copper or heatsink to sustain full rating. |
| Dynamic Impedance (ZZT) | 2.5 Ω at 75 mA-minimizes output voltage deviation under varying load current. |
| Max Regulator Current (IZM) | 315 mA-defines absolute DC current limit before thermal runaway under proper heatsinking. |
| Reverse Leakage (IR) | 1.0 µA max at 10.8 V-guarantees low standby power loss in high-impedance bias networks. |
| Thermal Resistance (RθJL) | 25 °C/W-enables precise junction temperature estimation from measured lead temperature. |
| Surge Current (IZSM) | 6.3 A (8.3 ms half-sine)-supports transient overvoltage clamping without failure. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are accessible via standard SMT reflow-compatible footprint per Microsemi pad layout (A = 8.13 mm, B = 2.16 mm, C = 2.79 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/ground terminal in Zener regulation configuration | Connected to system ground or lower-potential node; defines polarity for reverse-bias operation. |
| Cathode | Regulated output terminal | Banded end; supplies stable 15 V reference when reverse current flows through external series resistor. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5352B equivalent | Identical electrical specs and test methods-enables drop-in replacement in legacy designs qualified to MIL-STD-750. |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-020B Level 1 moisture sensitivity-no dry pack required prior to assembly. |
| Gull-wing lead form | Enables visual solder joint inspection and reliable reflow yield on FR4 PCBs with recommended footprint. |
| High surge current rating | 6.3 A non-repetitive peak (8.3 ms) withstand capability-protects downstream circuitry from line transients. |
| Low dynamic impedance | 2.5 Ω at 75 mA-reduces output voltage drift across 10–315 mA operating range for stable reference generation. |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Integrated into optocoupler feedback loop of isolated DC-DC converter to regulate 15 V output rail. IC Role / Device Role / Timing Role: Precision voltage reference element setting error amplifier trip point. Use Value: ±2% VZ tolerance and 2.5 Ω ZZT ensure <±0.3% output voltage drift over load and temperature. |
Use Scenario: Placed across 12 V automotive bus to suppress load-dump spikes exceeding 24 V. IC Role / Device Role / Timing Role: Fast-acting shunt clamp activated during transient overvoltage events. Use Value: 6.3 A IZSM rating handles ISO 7637-2 Pulse 5a without degradation; 15 V clamping threshold protects 16 V-rated ICs. |
| Industrial Sensor Reference | Programmable Logic Controller Input Conditioning |
|
Use Scenario: Provides stable 15 V reference for 4–20 mA transmitter DAC and op-amp bias network. IC Role / Device Role / Timing Role: Low-drift voltage source maintaining analog signal integrity across -40 to +85 °C. Use Value: 25 °C/W RθJL allows direct thermal coupling to PCB ground plane, limiting ΔTJ to <10 °C at 2 W dissipation. |
Use Scenario: Used in PLC digital input module to clamp 24 V field signals and protect FPGA I/O pins. IC Role / Device Role / Timing Role: Primary overvoltage suppression element ahead of TVS and series resistor. Use Value: 1.0 µA IR at 10.8 V prevents false triggering in high-impedance sensing paths; DO-215AA footprint fits dense I/O layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | Same 15 V ±2% VZ, 5 W rating, but axial T-18 package with lead-forming requirements and higher RθJA (125 °C/W). | Requires through-hole assembly and larger board area; unsuitable for high-density SMT production. | Select 1N5352B only for prototyping or legacy through-hole systems where rework flexibility outweighs density constraints. |
| SMBJ5352B | Same electrical specs but J-bend DO-214AA package; RθJL = 30 °C/W vs. 25 °C/W for SMBG5352CE3/TR13. | Lower thermal efficiency requires larger copper pour for equivalent power handling; less visible solder joint inspection. | Choose SMBJ5352B only if existing DO-214AA footprint reuse is mandatory and thermal margin permits 0.5 W derating at TL = 25 °C. |
Compared with 1N5352B and SMBJ5352B, SMBG5352CE3/TR13 delivers superior thermal performance (25 °C/W RθJL) and automated optical inspection compatibility in high-volume SMT lines-making it optimal for space-constrained, thermally demanding industrial and automotive power systems.
Availability
SMBG5352CE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and industrial sensor reference applications requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for SMBG5352CE3/TR13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in harsh-environment power systems-emphasizing JEDEC equivalence, thermal robustness, and process-controlled Zener tolerance.
FAQ
What is the Zener voltage tolerance for SMBG5352CE3/TR13?
The SMBG5352CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its measured VZ falls between 14.7 V and 15.3 V when tested at 75 mA (IZT) and 25 °C. The tolerance is guaranteed per Microsemi's characterization and screening process, and applies across the full operating temperature range of –65 to +150 °C.
Can SMBG5352CE3/TR13 replace 1N5352B in existing designs?
Yes, SMBG5352CE3/TR13 is electrically equivalent to 1N5352B per Microsemi documentation, sharing identical VZ, IZT, ZZT, and IZM specifications. However, the SMBG5352CE3/TR13 uses a DO-215AA gull-wing package versus the axial T-18 of 1N5352B-requiring PCB footprint redesign but offering improved thermal performance (25 °C/W vs. 125 °C/W RθJA) and SMT compatibility.
What is the maximum continuous power dissipation for SMBG5352CE3/TR13?
The SMBG5352CE3/TR13 is rated for 5.0 W continuous power dissipation only when lead temperature (TL) is maintained at or below 25 °C. At higher lead temperatures, power must be linearly derated per the curve in Figure 1 of the datasheet-e.g., at TL = 75 °C, maximum allowable PD drops to approximately 2.8 W. Derating assumes mounting on FR4 with 1 oz copper and Microsemi's recommended pad layout.
Is SMBG5352CE3/TR13 suitable for surge protection applications?
Yes, SMBG5352CE3/TR13 supports non-repetitive surge currents up to 6.3 A (8.3 ms half-sine waveform), making it suitable for clamping transient overvoltages such as load dump or ESD-induced spikes. Its 15 V clamping threshold and low ZZT ensure fast response and minimal overshoot-though for sustained surges or repeated events, pairing with a series current-limiting resistor and/or upstream TVS is recommended.
Does SMBG5352CE3/TR13 require dry packing before reflow soldering?
No, SMBG5352CE3/TR13 has an IPC/JEDEC moisture sensitivity level (MSL) of Level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry pack or baking. This is confirmed by Microsemi's qualification per J-STD-020B and results from the void-free UL94V-0 epoxy encapsulation and RoHS-compliant matte-tin plating-eliminating moisture ingress risk during standard SMT reflow.
SMBG5352CE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-215AA, SMB Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG5352CE3/TR13 FAQ
1.How can I place an order for SMBG5352CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5352CE3/TR13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBG5352CE3/TR13 reliable?
The price and inventory of SMBG5352CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5352CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5352CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5352CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5352CE3/TR13?
SMBG5352CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5352CE3/TR13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBG5352CE3/TR13?
For technical support, including SMBG5352CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5352CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5352CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5352CE3/TR13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBG5352CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5352CE3/TR13?
All SMBG5352CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5352CE3/TR13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBG5352CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5352CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5352CE3/TR13 Tags
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