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Microchip Technology SMBG5348CE3/TR13
- Part No.:
- SMBG5348CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5348CE3/TR13.pdf
- Description:
- DIODE ZENER 11V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,552
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Product details
Overview
SMBG5348CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 11 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5348CE3/TR13 datasheet, SMBG5348CE3/TR13 pinout, SMBG5348CE3/TR13 application, or SMBG5348CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (8.0 A), thermal resistance (90 °C/W on FR4), and JEDEC 1N5348B compatibility for legacy design migration.
Technical Context
This device operates as a precision voltage reference in reverse-biased mode, with specified test current IZT = 125 mA and dynamic impedance ZZT = 2.5 Ω at that point. Its cathode band polarity and gull-wing lead geometry support automated optical inspection and high-density PCB assembly.
The SMBG5348CE3/TR13 delivers stable regulation under transient surges up to 8.0 A (8.3 ms half-sine) and maintains ≤5 µA reverse leakage at 8.4 V. Its Level 1 moisture sensitivity rating eliminates dry-pack requirements per IPC/JEDEC J-STD-020B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±2% at 125 mA - ensures tight output regulation in feedback networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management above ambient |
| Dynamic Impedance (ZZT) | 2.5 Ω at 125 mA - minimizes output voltage variation under load transients |
| Max Surge Current (IZSM) | 8.0 A (8.3 ms half-sine) - withstands common AC line and ESD transients |
| Reverse Leakage (IR) | ≤5.0 µA at 8.4 V - preserves low-power standby integrity |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu) - defines heatsinking requirement for continuous operation |
| Junction Temperature Range | –65 to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; leads are tin-plated for solderability per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes Zener bias polarity |
| Cathode (banded end) | Regulated output node | Supplies stable 11 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5348B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin finish (e3) | Lead-free assembly compatibility without requalification or process change |
| Level 1 moisture sensitivity | No dry-pack or baking required - reduces handling cost and floor-life constraints |
| Gull-wing lead form (DO-215AA) | Visible solder joints enable AOI verification - improves manufacturing yield |
| High IZM rating (8.0 A surge) | Robustness against repetitive line surges without degradation - extends service life |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener reference providing precise 11 V threshold for optocoupler bias and error amplifier input. Use Value: ±2% VZ tolerance ensures <±1% output voltage accuracy across temperature and line variations. |
Use Scenario: Clamping transient spikes on 12 V automotive battery rail during load dump events. IC Role / Device Role / Timing Role: Shunt protector diverting surge energy to ground before downstream ICs exceed absolute maximum ratings. Use Value: 8.0 A non-repetitive surge rating handles ISO 7637-2 Pulse 5a without failure. |
| Industrial Sensor Excitation | Programmable Logic Controller Input Conditioning |
Use Scenario: Providing stable excitation voltage for 4–20 mA current-loop pressure transducers. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant voltage across bridge sensor elements. Use Value: Low 2.5 Ω dynamic impedance minimizes output shift under varying sensor loading (0–20 mA). |
Use Scenario: Level-shifting and clamping 24 V digital inputs to 11 V logic-compatible thresholds. IC Role / Device Role / Timing Role: Input protection element limiting voltage to safe levels for microcontroller GPIO pins. Use Value: Cathode-band polarity and gull-wing footprint ensure unambiguous orientation in high-density I/O modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5348B | Same VZ, IZT, ZZT, and IZSM; axial T-18 package instead of DO-215AA | Requires through-hole assembly and larger board area; no RoHS compliance (Sn/Pb) | Select for prototyping or legacy repair where surface-mount is not feasible |
| SMBJ5348B | Identical electrical specs; DO-214AA (J-bend) package instead of DO-215AA (gull-wing) | Different pad layout and solder joint geometry; may require requalification for AOI and reliability testing | Select when existing J-bend footprint is standardized and gull-wing rework is prohibitive |
Compared with SMBG5348CE3/TR13, 1N5348B offers identical regulation performance but lacks RoHS compliance and surface-mount efficiency, while SMBJ5348B matches all electrical parameters but demands different PCB layout and inspection criteria due to J-bend lead form.
Availability
SMBG5348CE3/TR13 is available at Aetrix Electronics and suitable for power supply reference, overvoltage protection, and industrial sensor excitation requiring stable component supply and full RoHS compliance.
Supply support for SMBG5348CE3/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 and mixed-signal components for aerospace, defense, and industrial markets.
The SMBG53xxB series was designed to deliver JEDEC-standard Zener performance in compact, manufacturable surface-mount packages for high-volume power management and protection applications.
FAQ
What is the Zener voltage tolerance of SMBG5348CE3/TR13?
The SMBG5348CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in the part number. This means its breakdown voltage is guaranteed between 10.78 V and 11.22 V when measured at 125 mA and 25 °C. The tighter tolerance supports precision voltage references in regulated power supplies and sensor interfaces where output stability is critical. SMBG5348CE3/TR13 achieves this accuracy without requiring external trimming or calibration.
Does SMBG5348CE3/TR13 meet RoHS requirements?
Yes, SMBG5348CE3/TR13 complies with RoHS Directive 2011/65/EU, as confirmed by the "e3" suffix indicating matte-tin plating. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. The device is qualified for lead-free reflow soldering up to 260 °C for 10 seconds and requires no special handling beyond standard Level 1 moisture precautions. SMBG5348CE3/TR13 is fully compatible with modern eco-conscious manufacturing processes.
What is the maximum surge current rating for SMBG5348CE3/TR13?
The SMBG5348CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 8.0 A, defined as an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without parametric shift or catastrophic failure. It is validated per Microsemi's internal surge test protocol aligned with industry standards for automotive and industrial surge immunity. SMBG5348CE3/TR13 maintains this capability across its full operating temperature range.
How does the DO-215AA package of SMBG5348CE3/TR13 differ from DO-214AA?
The DO-215AA package used by SMBG5348CE3/TR13 features gull-wing leads, while DO-214AA uses J-bend leads. Gull-wing geometry provides visible solder joints for automated optical inspection and lower coplanarity risk during reflow. SMBG5348CE3/TR13's DO-215AA footprint requires different pad dimensions than DO-214AA - specifically wider lead spacing and longer solder fillets. These mechanical differences mean SMBG5348CE3/TR13 is not a drop-in replacement for DO-214AA variants without PCB revision.
Is SMBG5348CE3/TR13 electrically equivalent to 1N5348B?
Yes, SMBG5348CE3/TR13 is electrically equivalent to 1N5348B per Microsemi documentation: identical Zener voltage (11 V), test current (125 mA), dynamic impedance (2.5 Ω), and surge rating (8.0 A). The only differences are packaging (DO-215AA vs. axial T-18) and RoHS compliance (e3 vs. Sn/Pb). SMBG5348CE3/TR13 retains full functional compatibility for voltage regulation tasks, enabling direct substitution in new designs where surface-mount is preferred.
SMBG5348CE3/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):
- 11 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 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)
SMBG5348CE3/TR13 FAQ
1.How can I place an order for SMBG5348CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5348CE3/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 SMBG5348CE3/TR13 reliable?
The price and inventory of SMBG5348CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5348CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5348CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5348CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5348CE3/TR13?
SMBG5348CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5348CE3/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 SMBG5348CE3/TR13?
For technical support, including SMBG5348CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5348CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5348CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5348CE3/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 SMBG5348CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5348CE3/TR13?
All SMBG5348CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5348CE3/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 SMBG5348CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5348CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5348CE3/TR13 Tags
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