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Microchip Technology SMBG5353A/TR13
- Part No.:
- SMBG5353A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5353A/TR13.pdf
- Description:
- DIODE ZENER 16V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,272
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Product details
Overview
SMBG5353A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 16 V, ±10% tolerance (A-suffix), 2.5 Ω dynamic impedance at 75 mA test current, and maximum regulator current of 6.0 A under thermal-limited conditions. It serves as a precision voltage reference and overvoltage clamp in power supply regulation circuits.
For engineers reviewing the SMBG5353A/TR13 datasheet, SMBG5353A/TR13 pinout, SMBG5353A/TR13 application, or SMBG5353A/TR13 equivalent, key selection criteria include Zener voltage tolerance, surge current rating (5.1 A), thermal resistance (25 °C/W junction-to-lead), and DO-215AA gull-wing package compatibility with high-density PCB layouts.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable voltage across its terminals over wide current (1.0 mA to 6.0 A) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation under load transients.
The SMBG5353A/TR13 uses a void-free thermosetting epoxy case rated UL94V-0, with cathode indicated by band polarity and RoHS-compliant matte-tin plating. It meets MIL-STD-750 method 2026 for solderability and exhibits non-sensitive ESD behavior per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V ±10% - stable regulation point at 75 mA test current, usable across 14.4 V to 17.6 V range |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management when mounted on FR4 with recommended footprint |
| Dynamic Impedance (ZZT) | 2.5 Ω @ IZT = 75 mA - low AC impedance enables tight voltage regulation under varying load |
| Max Regulator Current (IZM) | 6.0 A - peak DC current capability with adequate heat sinking and lead temperature control |
| Surge Current (IZSM) | 5.1 A (8.3 ms half-sine) - withstands short-duration overvoltage events without failure |
| Junction Temp Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer from junction to lead, critical for sustained 5 W operation |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: anode and cathode. Cathode identified by molded band; device operated with banded end positive relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Breakdown terminal | Connected to higher-potential node; reverse-biased to enable Zener conduction and voltage clamping |
| Anode | Reference terminal | Connected to lower-potential node (e.g., ground or return path); completes bias circuit for regulation |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5353B equivalent | Identical electrical characteristics and testing to legacy through-hole 1N5353B, enabling drop-in replacement in upgraded designs |
| Gull-wing lead form | Enables visual solder joint inspection and reliable reflow attachment on high-density PCBs |
| Moisture Sensitivity Level 1 | No dry pack required prior to assembly - reduces handling cost and simplifies manufacturing logistics |
| RoHS-compliant finish | Matte-tin plating meets environmental compliance requirements without sacrificing solderability or reliability |
Applications
| Power Supply Overvoltage Protection | Industrial Sensor Reference Voltage |
|---|---|
Use Scenario: Clamps transient surges on 12–24 V DC input rails in programmable logic controllers and motor drives. IC Role / Device Role / Timing Role: Voltage-clamping protection element placed across input stage to limit rail voltage to ≤17.6 V. Use Value: Prevents damage to downstream regulators and microcontrollers during load-dump or inductive kick events. | Use Scenario: Provides stable 16 V reference for analog front-end conditioning of pressure and temperature sensors. IC Role / Device Role / Timing Role: Precision shunt reference supplying excitation voltage to bridge-based transducers. Use Value: Maintains <±1% output stability over –40 °C to +85 °C due to low dynamic impedance and tight tolerance. |
| Automotive Body Control Module | Telecom Power Interface Clamp |
Use Scenario: Protects CAN transceiver power pins against ISO 7637-2 pulse 1/2a/5a transients in vehicle body electronics. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply line feeding microcontroller and peripheral ICs. Use Value: Withstands 5.1 A surge (8.3 ms) without degradation, meeting OEM robustness requirements. | Use Scenario: Shields PoE-powered Ethernet PHY interfaces from induced lightning surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Secondary shunt clamp after primary TVS, fine-tuning clamping level to protect sensitive PHY inputs. Use Value: Delivers precise 16 V clamping threshold with minimal leakage (<0.5 µA at 14.4 V), reducing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5353A | Axial-leaded T-18 package; identical 16 V ±10%, 5 W rating, but RθJA = 120 °C/W vs. 90 °C/W for SMBG5353A/TR13 | Requires through-hole mounting and larger board area; less suitable for automated SMT assembly | Select when legacy through-hole design or manual repair is required; not drop-in for surface-mount layouts |
| SMBJ5353A | DO-214AA J-bend package; same electrical specs but RθJL = 30 °C/W (vs. 25 °C/W) and different pad layout | Compatible with standard SMT pick-and-place but requires footprint revision; slightly lower thermal performance | Choose when DO-214AA footprint is already standardized; verify thermal margin in high-power continuous operation |
Compared with 1N5353A and SMBJ5353A, SMBG5353A/TR13 offers superior thermal performance (25 °C/W RθJL) and gull-wing visibility for AOI inspection, making it optimal for high-reliability, high-density SMT power regulation where thermal headroom and process control are critical.
Availability
SMBG5353A/TR13 is available at Aetrix Electronics and suitable for power supply protection, sensor reference circuits, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5353A/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 SMBG53xxA series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding applications where JEDEC-compatibility and visual solder inspection are essential.
FAQ
What is the Zener voltage tolerance for SMBG5353A/TR13?
The SMBG5353A/TR13 has a ±10% Zener voltage tolerance, meaning its breakdown voltage is specified between 14.4 V and 17.6 V at 75 mA test current. This tolerance is denoted by the "A" suffix in the part number and aligns with JEDEC 1N5353A specifications. The device maintains regulation within this band across operating temperatures from –65 °C to +150 °C.
Does SMBG5353A/TR13 require dry packing before reflow soldering?
No, SMBG5353A/TR13 does not require dry packing prior to reflow soldering. It carries IPC/JEDEC J-STD-020B moisture sensitivity level (MSL) 1, the highest rating, indicating unlimited floor life at ambient conditions. This eliminates baking steps and simplifies manufacturing flow for high-volume SMT assembly of SMBG5353A/TR13.
What is the maximum surge current rating for SMBG5353A/TR13?
The SMBG5353A/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 5.1 A for an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without parametric shift or failure, supporting robust overvoltage protection in automotive and industrial power systems where SMBG5353A/TR13 is deployed as a primary clamp.
Is SMBG5353A/TR13 RoHS compliant?
Yes, SMBG5353A/TR13 is RoHS compliant, featuring annealed matte-tin plating per JEDEC J-STD-609A Class 3. The "TR13" suffix indicates tape-and-reel packaging, and the base part conforms to EU Directive 2011/65/EU. No lead or other restricted substances exceed allowable thresholds, and solderability is verified per MIL-STD-750 method 2026.
How does the thermal resistance of SMBG5353A/TR13 compare to axial-leaded alternatives?
SMBG5353A/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W, significantly lower than the 120 °C/W typical for axial-leaded 1N5353A. This 4.8× improvement enables SMBG5353A/TR13 to sustain higher continuous power in compact layouts, making it preferable for thermally constrained SMT applications where heat must be efficiently conducted through leads rather than ambient air.
SMBG5353A/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:
- ±10%
- 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)
SMBG5353A/TR13 FAQ
1.How can I place an order for SMBG5353A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5353A/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 SMBG5353A/TR13 reliable?
The price and inventory of SMBG5353A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5353A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5353A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5353A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5353A/TR13?
SMBG5353A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5353A/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 SMBG5353A/TR13?
For technical support, including SMBG5353A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5353A/TR13 requirements.
6.How does Aetrix verify that SMBG5353A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5353A/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 SMBG5353A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5353A/TR13?
All SMBG5353A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5353A/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 SMBG5353A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5353A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5353A/TR13 Tags
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