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Microchip Technology SMBG5353CE3/TR13
- Part No.:
- SMBG5353CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5353CE3/TR13.pdf
- Description:
- DIODE ZENER 16V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,922
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Product details
Overview
SMBG5353CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 16 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It delivers stable voltage regulation across wide current (75 mA test current) and temperature (–65 to +150 °C) ranges, used in power supply overvoltage clamping and reference circuits.
For engineers reviewing the SMBG5353CE3/TR13 datasheet, SMBG5353CE3/TR13 pinout, SMBG5353CE3/TR13 application, or SMBG5353CE3/TR13 equivalent, this page provides verified electrical parameters, thermal derating behavior, JEDEC 1N5353B compatibility, and real-world design implications for surge protection and precision biasing.
Technical Context
This device operates as a silicon planar Zener diode in reverse-biased breakdown mode, with dynamic impedance of 2.5 Ω at 75 mA (IZT) and knee impedance of 295 Ω at 1 mA (IZK). Its thermal resistance junction-to-lead is 25 °C/W, enabling 5 W dissipation only when lead temperature (TL) is maintained ≤25 °C.
It conforms to JEDEC 1N5353B specifications, supports non-repetitive 8.3 ms half-sine surge currents up to 6.0 A (IZSM), and exhibits <0.5 µA reverse leakage at VR = 11.5 V - critical for low-power standby regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±2% at 75 mA - ensures tight regulation tolerance for reference and clamp applications requiring high accuracy. |
| Power Dissipation (PD) | 5.0 W at TL ≤25 °C - requires thermal management via PCB copper pour or heatsinked leads to sustain full rating. |
| Dynamic Impedance (ZZT) | 2.5 Ω at IZT = 75 mA - low impedance maintains stable output voltage under varying load current. |
| Max Surge Current (IZSM) | 6.0 A (8.3 ms half-sine) - enables robust transient suppression in automotive and industrial power rails. |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 11.5 V - minimizes standby power loss in battery-backed or energy-sensitive circuits. |
| Junction Temp Range | –65 to +150 °C - supports operation in extended-temperature environments including under-hood automotive and outdoor telecom. |
| Thermal Resistance RθJL | 25 °C/W - confirms efficient heat conduction from die to lead; critical for reliability in high-current pulse conditions. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are exposed on opposite sides of the molded epoxy body. Leads are RoHS-compliant annealed matte-tin plated per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lower potential node during Zener operation; carries full regulator current in clamp mode. |
| Cathode | Zener breakdown terminal / high-side connection | Banded end; connected to input rail or regulated node; sustains reverse voltage and dissipates power during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5353B equivalence | Identical electrical characteristics and testing - enables drop-in replacement without redesign in legacy 1N5353B-based systems. |
| Moisture Sensitivity Level 1 | No dry pack required per IPC/JEDEC J-STD-020B - simplifies handling, storage, and reflow process control. |
| Gull-wing lead geometry | Visible solder joints on FR4 board - supports automated optical inspection (AOI) and improves solder joint reliability verification. |
| Non-ESD-sensitive construction | Qualified per MIL-STD-750 method 1020 - eliminates need for ESD handling protocols during assembly and field service. |
| High surge current capability | 6.0 A non-repetitive peak (8.3 ms) - protects downstream ICs from lightning-induced or inductive-switching transients. |
Applications
| Power Supply Overvoltage Clamp | DC Reference Voltage Source |
|---|---|
Use Scenario: Protects switching regulator feedback loop from transient overvoltage events exceeding 16 V. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage at 16 V ±2%. Use Value: Prevents damage to error amplifier inputs while maintaining regulation accuracy within ±2% tolerance. |
Use Scenario: Provides stable 16 V reference for analog sensor excitation in industrial instrumentation. IC Role / Device Role / Timing Role: Precision voltage reference element with low dynamic impedance (2.5 Ω) and minimal tempco drift. Use Value: Enables <0.5 µA leakage at 11.5 V, reducing measurement error in high-impedance sensing paths. |
| Automotive Load Dump Protection | Industrial PLC Input Protection |
Use Scenario: Absorbs 12 V system load dump surges (up to 6.0 A, 8.3 ms) in vehicle ECUs. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping rail to 16 V during ISO 7637-2 Pulse 5a events. Use Value: Sustains 5 W dissipation with RθJL = 25 °C/W, ensuring thermal survival without external heatsink. |
Use Scenario: Shields 24 V digital input channels from field-wiring induced transients in factory automation. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting input to 16 V before TVS or optocoupler stage. Use Value: Leverages ±2% tolerance and 295 Ω knee impedance to avoid false triggering during slow-rising noise. |
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%, 5 W rating, axial T-18 package; higher RθJA (125 °C/W vs. 90 °C/W for SMBG). | Requires through-hole mounting and larger board area; unsuitable for high-density SMT designs. | Select SMBG5353CE3/TR13 for surface-mount density and visible gull-wing solder joints; choose 1N5353B only for legacy through-hole compatibility. |
| SMBJ5353 | Same 16 V ±2%, but J-bend DO-214AA package; identical RθJA (90 °C/W), slightly higher ZZT (3.0 Ω vs. 2.5 Ω). | Compatible footprint on FR4, but lacks gull-wing visual inspection advantage; lower surge rating (5.8 A vs. 6.0 A). | Prefer SMBG5353CE3/TR13 when AOI validation or maximum surge margin is required; SMBJ5353 suits cost-optimized J-bend layouts. |
Compared with 1N5353B and SMBJ5353, SMBG5353CE3/TR13 uniquely combines gull-wing visibility for solder quality assurance, lowest ZZT in its family (2.5 Ω), and highest IZSM (6.0 A), making it optimal for safety-critical clamping where traceability and transient margin are prioritized.
Availability
SMBG5353CE3/TR13 is available at Aetrix Electronics and suitable for power supply clamping, DC reference generation, automotive load dump protection, and industrial input protection requiring stable component supply and RoHS compliance.
Supply support for SMBG5353CE3/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 discrete components for aerospace, defense, and industrial markets.
SMBG5353CE3/TR13 belongs to Microsemi's SMBG-series 5 W Zener diodes, engineered for high-density surface-mount voltage regulation and transient suppression in harsh-environment power systems.
FAQ
What is the Zener voltage tolerance of SMBG5353CE3/TR13?
The "C" suffix in SMBG5353CE3/TR13 denotes ±2% Zener voltage tolerance at 75 mA test current, yielding a guaranteed range of 15.68 V to 16.32 V at TL = 25 °C. This tighter tolerance supports precision reference and clamp applications where 16 V stability is critical, unlike ±5% (B suffix) or ±10% (A suffix) variants.
Is SMBG5353CE3/TR13 compatible with JEDEC 1N5353B?
Yes, SMBG5353CE3/TR13 is fully equivalent to JEDEC 1N5353B in electrical characteristics and testing per Microsemi documentation. Both share identical VZ (16 V), IZT (75 mA), ZZT (2.5 Ω), and IZSM (6.0 A), enabling direct functional replacement - though SMBG5353CE3/TR13 uses surface-mount DO-215AA versus 1N5353B's axial T-18 package.
What is the maximum power dissipation of SMBG5353CE3/TR13?
SMBG5353CE3/TR13 has a rated off-state power dissipation of 5.0 W at lead temperature (TL) ≤25 °C. At ambient temperature (TA) = 25 °C on FR4 with recommended footprint, derated power drops to 1.38 W due to higher thermal resistance junction-to-ambient (RθJA = 90 °C/W). Full 5 W requires active lead cooling or thermal vias.
Does SMBG5353CE3/TR13 require dry packing before reflow?
No, SMBG5353CE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not hygroscopic and does not require dry packing or baking prior to reflow soldering. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during standard lead-free reflow profiles.
What is the reverse leakage current specification for SMBG5353CE3/TR13?
SMBG5353CE3/TR13 specifies maximum reverse leakage current (IR) of ≤0.5 µA at VR = 11.5 V, measured per Microsemi T4-LDS-0246-1. This ultra-low leakage supports energy-efficient designs such as battery-powered sensors and always-on monitoring circuits where standby current must be minimized.
SMBG5353CE3/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)
SMBG5353CE3/TR13 FAQ
1.How can I place an order for SMBG5353CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5353CE3/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 SMBG5353CE3/TR13 reliable?
The price and inventory of SMBG5353CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5353CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5353CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5353CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5353CE3/TR13?
SMBG5353CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5353CE3/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 SMBG5353CE3/TR13?
For technical support, including SMBG5353CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5353CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5353CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5353CE3/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 SMBG5353CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5353CE3/TR13?
All SMBG5353CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5353CE3/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 SMBG5353CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5353CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5353CE3/TR13 Tags
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