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Microchip Technology SMBG5353C/TR13
- Part No.:
- SMBG5353C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5353C/TR13.pdf
- Description:
- DIODE ZENER 16V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,708
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Product details
Overview
SMBG5353C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 16 V, ±2% tolerance (C suffix), 75 mA test current (IZT), 2.5 Ω dynamic impedance (ZZT), and 6.0 A maximum regulator current (IZM); used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5353C/TR13 datasheet, SMBG5353C/TR13 pinout, SMBG5353C/TR13 application, or SMBG5353C/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), surge current rating (IZSM = 6.0 A), and DO-215AA gull-wing package compatibility with high-density PCB layouts.
Technical Context
This device operates in reverse breakdown to maintain stable voltage across wide current (1–6 A) and temperature (−65 to +150 °C) ranges. Its low dynamic impedance (2.5 Ω at 75 mA) ensures minimal voltage variation under load transients.
The DO-215AA gull-wing package provides visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal resistance junction-to-lead is 25 °C/W, enabling reliable 5 W operation with adequate heat sinking at lead temperature <25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±2% - precise reference voltage at 75 mA, critical for feedback accuracy in regulated DC-DC converters. |
| Test Current (IZT) | 75 mA - standardized operating point where VZ and ZZT are guaranteed per JEDEC 1N53xxB spec. |
| Dynamic Impedance (ZZT) | 2.5 Ω - low AC impedance ensures tight voltage regulation during ripple and transient conditions. |
| Max Regulator Current (IZM) | 6.0 A - maximum continuous DC current at rated power, defining safe steady-state dissipation limit. |
| Surge Current (IZSM) | 6.0 A (8.3 ms half-sine) - non-repetitive peak current handling for transient overvoltage suppression. |
| Thermal Resistance (RθJL) | 25 °C/W - enables 5 W power dissipation with ≤125 °C junction rise above lead temperature. |
| Junction Temperature Range | −65 to +150 °C - supports industrial and automotive under-hood environments without derating. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated; polarity requires banded end to be positive relative to opposite end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased reference terminal | Connected to system ground or lower-potential node; carries full regulator current during conduction. |
| Cathode | Zener voltage output terminal | Banded end; supplies regulated 16 V to feedback network or clamp circuit; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB Equivalent | Identical electrical characteristics and test methods to legacy through-hole 1N5353B, enabling drop-in replacement in upgraded SMT designs. |
| Moisture Sensitivity Level 1 | No dry pack or baking required before reflow-reduces manufacturing overhead and eliminates moisture-induced popcorning risk. |
| High Surge Withstand | 6.0 A non-repetitive 8.3 ms half-sine surge current supports IEC 61000-4-5 level 4 transient immunity in industrial power inputs. |
| Low Dynamic Impedance | 2.5 Ω at 75 mA ensures <32 mV output shift for ±100 mA load change-critical for <1% regulation error in precision supplies. |
| Gull-Wing Lead Geometry | Visible solder joints enable automated optical inspection (AOI) and simplify rework on dense PCBs without X-ray. |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward DC-DC converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision voltage reference element providing stable 16 V threshold to TL431 or similar shunt regulator IC. Use Value: ±2% tolerance and 2.5 Ω dynamic impedance maintain ±0.32 V output stability across line/load/temperature variations. |
Use Scenario: Protecting downstream 15 V logic rails from input surges exceeding 18 V in industrial 24 V systems. IC Role / Device Role / Timing Role: Shunt clamping device that conducts excess current when input exceeds 16 V, limiting rail voltage. Use Value: 6.0 A surge rating absorbs 8.3 ms transients up to 100 J without degradation-meets IEC 61000-4-5 Class 4. |
| Reference Voltage Source | ESD Protection Interface |
Use Scenario: Generating stable 16 V bias for op-amp comparators or analog sensor excitation in battery-powered instrumentation. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage reference replacing higher-cost bandgap ICs where 1% accuracy suffices. Use Value: Level 1 moisture rating and −65 to +150 °C operation allow use in unsealed outdoor enclosures without conformal coating. |
Use Scenario: Secondary-level ESD protection on 16 V auxiliary power lines connected to USB-C PD controllers or PMICs. IC Role / Device Role / Timing Role: Fast-turn-on shunt limiter clamping fast-rising ESD events (IEC 61000-4-2) before they reach sensitive ICs. Use Value: Non-sensitive to ESD per MIL-STD-750 Method 1020 enables direct placement at connector entry points without series resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353B | Same 16 V ±2%, 75 mA IZT, and 2.5 Ω ZZT, but axial T-18 package with higher RθJA (125 °C/W) and no gull-wing visibility. | Requires through-hole assembly; unsuitable for high-density SMT boards or AOI-based production lines. | Select 1N5353B only for legacy repair or prototyping where board real estate and automated inspection are not constraints. |
| SMBJ5353C | Identical electrical specs and DO-214AA J-bend package; RθJA = 90 °C/W vs. SMBG5353C's RθJL = 25 °C/W-less efficient heat transfer to PCB copper. | Lower thermal performance limits sustained 5 W operation without enhanced copper pour; less robust in thermally constrained layouts. | Choose SMBJ5353C only if existing footprint uses DO-214AA; otherwise SMBG5353C offers superior thermal path and visual solder verification. |
Compared with 1N5353B and SMBJ5353C, SMBG5353C/TR13 delivers optimal thermal management via its DO-215AA gull-wing leadframe (RθJL = 25 °C/W), enables AOI-ready assembly, and maintains identical JEDEC-regulated Zener performance-making it the preferred choice for new SMT power designs requiring reliability and manufacturability.
Availability
SMBG5353C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and telecom DC-DC converters requiring stable component supply with RoHS compliance and tape-and-reel delivery.
Supply support for SMBG5353C/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, RF, and discrete components for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically to provide JEDEC-identical SMT replacements for legacy 1N53xx Zeners-enabling seamless migration to surface-mount while preserving proven voltage regulation performance and surge robustness.
FAQ
What is the Zener voltage tolerance of SMBG5353C/TR13?
The "C" suffix in SMBG5353C/TR13 denotes a ±2% Zener voltage tolerance at 75 mA test current. This means the actual VZ falls between 15.68 V and 16.32 V under specified conditions, ensuring tighter regulation than ±5% (B) or ±10% (A) variants-critical for feedback accuracy in precision power supplies.
Does SMBG5353C/TR13 require dry packing before reflow soldering?
No, SMBG5353C/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without dry pack or baking. This eliminates moisture-related defects like popcorning during reflow and simplifies factory handling.
What is the maximum continuous power dissipation for SMBG5353C/TR13?
SMBG5353C/TR13 is rated for 5.0 W off-state power dissipation at lead temperature (TL) < 25 °C. At ambient temperature (TA = 25 °C) on FR4 with recommended footprint, derated power is 1.38 W due to higher thermal resistance junction-to-ambient (RθJA = 90 °C/W).
How does the DO-215AA package of SMBG5353C/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5353C/TR13 provides visible solder joints for AOI, lower RθJL (25 °C/W), and better mechanical stability than DO-214AA's J-bend leads. In contrast, DO-214AA (used in SMBJ5353C) has higher RθJA (90 °C/W) and no direct lead-to-PCB thermal path.
Is SMBG5353C/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5353C/TR13 is RoHS compliant with annealed matte-tin plating and rated for solder temperature up to 260 °C for 10 seconds-fully compatible with standard lead-free reflow profiles (e.g., JEDEC J-STD-020 Class 3A), including peak temperatures of 260 °C.
SMBG5353C/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):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 11.5 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)
SMBG5353C/TR13 FAQ
1.How can I place an order for SMBG5353C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5353C/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 SMBG5353C/TR13 reliable?
The price and inventory of SMBG5353C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5353C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5353C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5353C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5353C/TR13?
SMBG5353C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5353C/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 SMBG5353C/TR13?
For technical support, including SMBG5353C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5353C/TR13 requirements.
6.How does Aetrix verify that SMBG5353C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5353C/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 SMBG5353C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5353C/TR13?
All SMBG5353C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5353C/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 SMBG5353C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5353C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5353C/TR13 Tags
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MM5Z5V1ST1G
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