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Microchip Technology SMBG5359AE3/TR13
- Part No.:
- SMBG5359AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5359AE3/TR13.pdf
- Description:
- DIODE ZENER 24V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
SMBG5359AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 24 V, ±10% tolerance (A suffix), 3.5 Ω dynamic impedance at 50 mA test current, and maximum regulator current of 198 mA. It uses DO-215AA gull-wing package and is designed for voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation under broad temperature and current conditions.
For engineers reviewing the SMBG5359AE3/TR13 datasheet, SMBG5359AE3/TR13 pinout, SMBG5359AE3/TR13 application, or SMBG5359AE3/TR13 equivalent, key selection criteria include its 24 V regulation point, 5 W power rating at lead temperature <25 °C, 25 °C/W junction-to-lead thermal resistance, RoHS-compliant matte-tin plating, and visible gull-wing solder joints per IPC/JEDEC J-STD-020B Level 1 moisture sensitivity.
Technical Context
This device operates as a reverse-biased silicon Zener diode, maintaining stable 24 V regulation across 50 mA test current (IZT) with 3.5 Ω dynamic impedance (ZZT). Its breakdown knee occurs at 1 mA with ZZK ≤ 450 Ω, and it sustains up to 198 mA maximum dc regulator current (IZM) when thermally managed via lead conduction.
The SMBG5359AE3/TR13 features non-sensitive ESD performance per MIL-STD-750 Method 1020, withstands 4.4 A non-repetitive 8.3 ms half-sine surge current (IZSM), and exhibits minimal voltage drift versus current due to low dynamic impedance and tight ±10% VZ tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±10% - Stable regulation point at 50 mA IZT; high-end VZM = 26.4 V used to calculate IZM = 5 W / 26.4 V ≈ 190 mA |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - Requires thermal path to PCB leads; derates to 1.38 W at TA = 25 °C on FR4 |
| Dynamic Impedance (ZZT) | 3.5 Ω @ 50 mA - Low AC impedance ensures minimal output voltage variation under load transients |
| Max Regulator Current (IZM) | 198 mA - Maximum continuous DC current before thermal runaway; validated for ±10% tolerance devices |
| Junction-to-Lead Rθ | 25 °C/W - Enables direct thermal coupling to PCB copper; critical for sustained 5 W operation without heatsink |
| Surge Current (IZSM) | 4.4 A (8.3 ms half-sine) - Withstands transient overvoltage events such as load dump or inductive kickback |
| Reverse Leakage (IR) | 0.5 µA @ 19.4 V VR - Confirms sharp breakdown knee and low standby power loss in precision references |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Moisture sensitivity level 1 - no dry pack required per IPC/JEDEC J-STD-020B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to positive rail in shunt regulator configuration; voltage referenced to anode |
| Anode | Reference/ground node | Typically tied to system ground or feedback node; establishes reverse bias polarity |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5359B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs using axial 1N5359B |
| Gull-wing lead form | Visible solder joints enable automated optical inspection (AOI) and rework accessibility on dense PCBs |
| RoHS-compliant matte-tin plating | e3 suffix confirms annealed tin finish meeting Pb-free soldering requirements and MIL-STD-750 Method 2026 |
| Level 1 moisture sensitivity | No baking or dry pack needed before reflow - reduces manufacturing overhead and avoids moisture-induced popcorning |
| High surge current rating | 4.4 A IZSM supports robust protection in automotive and industrial environments with frequent transients |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for 24 V Rail |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 24 V threshold for error signal generation. Use Value: ±10% VZ tolerance and 3.5 Ω ZZT ensure stable regulation across line/load variations and temperature drift ≤ ±0.08%/°C. |
Use Scenario: Clamps 24 V DC bus during load dump or inductive switching events in industrial control systems. IC Role / Device Role / Timing Role: Passive overvoltage protection element absorbing transient energy until crowbar or shutdown activates. Use Value: 4.4 A IZSM and 5 W PD rating sustain 8.3 ms surges without degradation, protecting downstream MOSFETs and controllers. |
| Programmable Reference Voltage Source | ESD-Safe Signal Line Protection |
Use Scenario: Generates stable 24 V reference for ADC input scaling or DAC output buffering in data acquisition modules. IC Role / Device Role / Timing Role: Precision shunt reference with low dynamic impedance minimizing noise coupling into analog signal paths. Use Value: 0.5 µA IR at 19.4 V VR ensures negligible loading on high-impedance sources; ZZT < 4 Ω maintains SNR > 85 dB. |
Use Scenario: Protects RS-485 transceiver I/O pins from ESD and fast transients in factory automation networks. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) clamping diode diverting ESD current to ground while limiting voltage to 26.4 V. Use Value: Non-sensitive ESD performance per MIL-STD-750 Method 1020 eliminates pre-test conditioning; gull-wing leads reduce parasitic inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5359B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs but higher RθJA (150 °C/W vs. 90 °C/W) | Requires through-hole mounting and larger board area; unsuitable for high-density SMT assembly | Select 1N5359B only for legacy through-hole designs or prototyping where manual assembly is preferred. |
| SMBJ5359B | DO-214AA J-bend package; same electrical specs but 30 °C/W RθJL and 110 °C/W RθJA; different pad layout | Compatible with standard SMT pick-and-place but requires revised footprint; less visible solder joint than gull-wing | Choose SMBJ5359B when existing DO-214AA tooling or footprint reuse is prioritized over AOI visibility. |
Compared with SMBG5359AE3/TR13, 1N5359B offers identical regulation but lacks SMT scalability, while SMBJ5359B matches surface-mount compatibility but sacrifices solder-joint inspection capability and has higher thermal resistance to ambient.
Availability
SMBG5359AE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supply feedback, overvoltage clamp for 24 V rail, and programmable reference voltage source applications requiring stable component supply, RoHS compliance, and visible gull-wing solder joints.
Supply support for SMBG5359AE3/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 SMBG53xxB series was developed to provide JEDEC-registered 5 W Zener regulation in compact DO-215AA gull-wing packaging for high-density power management and protection circuits in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance of SMBG5359AE3/TR13?
The SMBG5359AE3/TR13 has a ±10% Zener voltage tolerance, indicated by the "A" suffix in the part number. This means its regulated voltage ranges from 21.6 V to 26.4 V at 50 mA test current (IZT), with typical VZ measured at 24 V under standard conditions per Microsemi T4-LDS-0246-1 Rev. 1.
Does SMBG5359AE3/TR13 require dry packing before reflow soldering?
No, SMBG5359AE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored and processed without baking or desiccant packaging - eliminating moisture-related defects like popcorning during reflow.
What is the maximum surge current rating for SMBG5359AE3/TR13?
The SMBG5359AE3/TR13 is rated for 4.4 A maximum non-repetitive surge current (IZSM), defined as the peak value of an 8.3 ms half-sine waveform. This rating enables reliable transient suppression in automotive and industrial 24 V systems exposed to load dump or inductive switching events.
How does the DO-215AA package of SMBG5359AE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5359AE3/TR13 uses gull-wing leads for visible solder joints and 25 °C/W junction-to-lead thermal resistance, whereas DO-214AA (e.g., SMBJ5359B) uses J-bend leads with 30 °C/W RθJL. The gull-wing design supports automated optical inspection and superior thermal conduction to PCB copper.
Is SMBG5359AE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5359AE3/TR13 is RoHS compliant (e3 suffix) with annealed matte-tin plating and rated for 260 °C solder temperature at 10 s. It meets standard lead-free reflow profiles including JEDEC J-STD-020, supporting peak temperatures up to 260 °C without degradation.
SMBG5359AE3/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):
- 24 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 17.3 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)
SMBG5359AE3/TR13 FAQ
1.How can I place an order for SMBG5359AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5359AE3/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 SMBG5359AE3/TR13 reliable?
The price and inventory of SMBG5359AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5359AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5359AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5359AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5359AE3/TR13?
SMBG5359AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5359AE3/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 SMBG5359AE3/TR13?
For technical support, including SMBG5359AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5359AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5359AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5359AE3/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 SMBG5359AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5359AE3/TR13?
All SMBG5359AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5359AE3/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 SMBG5359AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5359AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5359AE3/TR13 Tags
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