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Microchip Technology SMBG5344AE3/TR13
- Part No.:
- SMBG5344AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5344AE3/TR13.pdf
- Description:
- DIODE ZENER 8.2V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,150
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Product details
Overview
SMBG5344AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 8.2 V, ±10% tolerance (A-suffix), and 150 mA test current (IZT). It features 1.5 Ω dynamic impedance (ZZT), 10 µA reverse leakage at 5.9 V (VR), and operates across –65 °C to +150 °C junction temperature range. It serves as a precision voltage reference or overvoltage clamp in DC power supply regulation circuits.
For engineers reviewing the SMBG5344AE3/TR13 datasheet, SMBG5344AE3/TR13 pinout, SMBG5344AE3/TR13 application, or SMBG5344AE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current rating (10 A), RoHS-compliant matte-tin plating, and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device functions as a two-terminal silicon voltage regulator operating in reverse-biased breakdown mode. Its Zener voltage is specified at 8.2 V ±10% under 150 mA DC test current (IZT), with dynamic impedance measured at 1.5 Ω using 10% RMS AC modulation superimposed on IZT.
Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4 with recommended footprint), enabling stable regulation up to 5.0 W at lead temperature <25 °C or 1.38 W at ambient 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V ±10% - defines regulated output voltage under 150 mA DC bias; high-end tolerance limit is 9.02 V for worst-case IZM calculation. |
| Test Current (IZT) | 150 mA - standardized DC current at which VZ is measured; ensures repeatable voltage calibration during production test. |
| Dynamic Impedance (ZZT) | 1.5 Ω - small-signal AC impedance near breakdown; determines voltage regulation stability under varying load currents. |
| Max Reverse Leakage (IR) | 10 µA at 5.9 V - low leakage ensures minimal standby power loss in clamping or reference applications. |
| Surge Current (IZSM) | 10 A (8.3 ms half-sine) - enables transient overvoltage suppression without failure in power rail protection circuits. |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - maximum steady-state power handling with adequate heat sinking at lead; derates linearly above 25 °C. |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in automotive under-hood, industrial control, and telecom infrastructure environments. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only - no internal connections or multi-pin functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias operation | Connected to regulated voltage node; polarity must be observed to avoid forward conduction and regulation failure. |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or lower-potential rail; establishes reference point for Zener voltage drop. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5344B equivalent | Identical electrical characteristics and testing per Microsemi documentation - enables legacy design migration without requalification. |
| RoHS-compliant matte-tin plating | e3 suffix confirms annealed tin finish compliant with J-STD-020B Level 1 moisture sensitivity - eliminates dry-pack requirement and supports lead-free reflow. |
| Gull-wing lead form (DO-215AA) | Enables visual solder joint inspection and reliable reflow wetting on standard SMT pads - improves manufacturing yield vs. J-bend packages. |
| Level 1 moisture sensitivity | No baking or dry pack needed before assembly - reduces handling cost and avoids moisture-induced popcorning during reflow. |
| High surge current capability | 10 A non-repetitive 8.3 ms half-sine rating - provides robust transient immunity in DC input protection circuits without external TVS stacking. |
Applications
| DC Power Supply Regulation | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Stabilizing 8–9 V rail in isolated flyback or buck-derived auxiliary supplies for microcontroller or sensor biasing. IC Role / Device Role / Timing Role: Two-terminal voltage reference providing fixed bias point independent of input variation or load current changes. Use Value: Maintains ±10% output voltage accuracy across 10–200 mA load range with <1.5 Ω dynamic impedance, reducing need for post-regulator LDOs. |
Use Scenario: Protecting 8.2 V logic interface inputs against ESD or inductive switching transients in industrial PLC modules. IC Role / Device Role / Timing Role: Shunt clamping element diverting excess energy to ground when voltage exceeds 9.02 V (VZ max). Use Value: Absorbs 10 A surge (8.3 ms) without degradation, eliminating need for larger-footprint TVS diodes in space-constrained designs. |
| Reference Voltage Source | Current-Limited Bias Generator |
|
Use Scenario: Providing stable 8.2 V reference for ADC voltage dividers or op-amp feedback networks in data acquisition front-ends. IC Role / Device Role / Timing Role: Precision voltage source establishing known potential for analog signal conditioning circuits. Use Value: Low 10 µA leakage at 5.9 V minimizes error contribution in high-impedance reference paths, improving measurement accuracy. |
Use Scenario: Generating controlled bias current for LED drivers or phototransistor amplifiers using series resistor + Zener configuration. IC Role / Device Role / Timing Role: Constant-voltage element setting current through external resistor to achieve predictable bias levels. Use Value: Tight 8.2 V ±10% tolerance ensures repeatable current values across production lots, reducing calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5344B | Same electrical specs and JEDEC registration; axial-leaded T-18 package instead of DO-215AA surface mount. | Requires through-hole assembly and PCB real estate; unsuitable for high-density SMT layouts. | Select when legacy through-hole manufacturing or manual prototyping is required; not drop-in compatible with SMBG5344AE3/TR13 footprint. |
| SMBJ5344B | Identical Zener parameters but in DO-214AA (J-bend) package; same RoHS compliance and 5 W rating. | Lower profile than gull-wing but lacks visible solder joints; may require tighter stencil aperture control during reflow. | Choose for designs already using DO-214AA footprints or where gull-wing inspection is not mandated; thermal resistance differs slightly (RθJA not identical). |
Compared with 1N5344B and SMBJ5344B, SMBG5344AE3/TR13 offers gull-wing leads enabling optical solder inspection and optimized thermal path (RθJL = 25 °C/W), making it preferred for automated SMT production of compact, high-reliability power management subsystems.
Availability
SMBG5344AE3/TR13 is available at Aetrix Electronics and suitable for DC power supply regulation, overvoltage clamp protection, and reference voltage source applications requiring stable component supply across automotive, industrial control, and telecom infrastructure programs.
Supply support for SMBG5344AE3/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.
SMBG5344AE3/TR13 belongs to Microsemi's SMBG-series 5 W Zener diode product line, engineered for precision voltage regulation and transient suppression in harsh-environment power systems where thermal stability and surge resilience are critical.
FAQ
What is the Zener voltage tolerance of SMBG5344AE3/TR13?
The SMBG5344AE3/TR13 has a Zener voltage tolerance of ±10%, indicated by the "A" suffix in its part number. This means its breakdown voltage is guaranteed between 7.38 V and 9.02 V when tested at 150 mA DC current and 30 °C lead temperature, per Microsemi's T4-LDS-0246-1 datasheet specifications.
Is SMBG5344AE3/TR13 RoHS compliant?
Yes, SMBG5344AE3/TR13 is RoHS compliant, confirmed by the "e3" suffix in its designation. It uses annealed matte-tin plating per MIL-STD-750 Method 2026 and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required prior to reflow soldering.
What is the maximum surge current rating for SMBG5344AE3/TR13?
The SMBG5344AE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 10 A, defined as an 8.3 ms half-sine waveform. This rating is validated per Microsemi's test conditions and enables reliable transient suppression in DC input protection circuits without device failure.
How does the DO-215AA package of SMBG5344AE3/TR13 differ from DO-214AA?
The DO-215AA package used by SMBG5344AE3/TR13 features gull-wing leads for visible solder joint inspection and lower thermal resistance (RθJL = 25 °C/W), whereas DO-214AA uses J-bend leads. Both are surface-mount, but DO-215AA supports higher reliability in automated optical inspection (AOI) processes and improved thermal transfer to PCB copper.
Can SMBG5344AE3/TR13 replace 1N5344B in existing designs?
SMBG5344AE3/TR13 matches the electrical characteristics of 1N5344B per Microsemi documentation but uses a surface-mount DO-215AA package versus the axial T-18 package of 1N5344B. Direct replacement requires PCB redesign; however, it is functionally equivalent for voltage regulation and clamping where SMT assembly is feasible.
SMBG5344AE3/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):
- 8.2 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1.5 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.9 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)
SMBG5344AE3/TR13 FAQ
1.How can I place an order for SMBG5344AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5344AE3/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 SMBG5344AE3/TR13 reliable?
The price and inventory of SMBG5344AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5344AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5344AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5344AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5344AE3/TR13?
SMBG5344AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5344AE3/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 SMBG5344AE3/TR13?
For technical support, including SMBG5344AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5344AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5344AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5344AE3/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 SMBG5344AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5344AE3/TR13?
All SMBG5344AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5344AE3/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 SMBG5344AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5344AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5344AE3/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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Diodes Incorporated
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Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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