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Microchip Technology SMBG5352A/TR13
- Part No.:
- SMBG5352A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5352A/TR13.pdf
- Description:
- DIODE ZENER 15V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,787
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Product details
Overview
SMBG5352A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 15 V, ±10% tolerance (A suffix), 2.5 Ω dynamic impedance at 75 mA test current, and maximum regulator current of 6.3 A under thermal-limited conditions. It serves as a precision voltage reference or shunt regulator in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5352A/TR13 datasheet, SMBG5352A/TR13 pinout, SMBG5352A/TR13 application, or SMBG5352A/TR13 equivalent, key selection criteria include its DO-215AA gull-wing package, 15 V Zener voltage with 10% tolerance, 5 W power rating at lead temperature <25 °C, low dynamic impedance, and RoHS-compliant matte-tin plating.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable voltage across varying load currents and temperatures. Its Zener voltage is specified at 75 mA (IZT), with dynamic impedance measured at 10% AC modulation superimposed on IZT - confirming tight regulation under dynamic load conditions.
The SMBG5352A/TR13 uses a void-free thermosetting epoxy case rated UL94V-0, features cathode band polarity marking, and meets IPC/JEDEC J-STD-020B moisture sensitivity Level 1 - eliminating dry-pack requirements and enabling standard reflow processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±10% at 75 mA - defines regulated output voltage with predictable tolerance band for feedback or clamping. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via PCB copper pour or heatsinking for sustained operation. |
| Dynamic Impedance (ZZT) | 2.5 Ω at 75 mA - ensures minimal voltage deviation under small-signal AC load transients. |
| Max Regulator Current (IZM) | 6.3 A - peak DC current capability before thermal derating; limited by junction-to-lead thermal resistance (25 °C/W). |
| Reverse Leakage (IR) | 1.0 µA at 10.8 V - confirms low off-state power loss in high-impedance bias networks. |
| Junction Temp Range | –65 to +150 °C - supports industrial and automotive under-hood environments without derating. |
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 regulated voltage node; sinks current during Zener conduction. |
| Anode | Reference/return terminal | Connected to ground or lower-potential rail; completes shunt regulation path. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5352B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs using axial 1N5352B. |
| Gull-wing leads (DO-215AA) | Enables visual solder joint inspection and reliable reflow attachment on FR4 boards with recommended 8.13 × 2.16 mm pad layout. |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling, storage, and assembly logistics for high-volume manufacturing. |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-006B tin finish requirements and supports Pb-free reflow profiles up to 260 °C for 10 s. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizes error amplifier reference in isolated flyback or forward converter feedback networks. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 15 V reference for optocoupler-driven regulation. Use Value: Maintains ±10% output regulation across line/load/temperature with 2.5 Ω dynamic impedance limiting feedback loop perturbation. |
Use Scenario: Limits transient voltage spikes on 12 V DC rails caused by inductive switching or ESD events. IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing surge energy up to 6.3 A peak current. Use Value: Clamps excursions above ~16.5 V (15 V × 1.1) while sustaining 5 W continuous dissipation under steady overvoltage. |
| Industrial Sensor Signal Conditioning | Programmable Logic Controller Input Protection |
Use Scenario: Provides stable 15 V bias for analog front-end op-amps in 4–20 mA transmitter circuits. IC Role / Device Role / Timing Role: Precision voltage reference ensuring consistent gain and offset calibration across temperature. Use Value: Delivers <1 µA leakage at 10.8 V and –65 to +150 °C operation - minimizing sensor signal drift. |
Use Scenario: Protects 24 V digital input channels against field-wiring faults and induced surges. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed ahead of opto-isolator input stage. Use Value: Withstands non-repetitive 8.3 ms half-sine surges up to 6.3 A (IZSM), per JEDEC test waveform definition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM; no gull-wing geometry. | Requires through-hole assembly; unsuitable for high-density SMT layouts. | Select when retrofitting legacy through-hole boards or where manual prototyping favors axial leads. |
| SMBJ5352B | DO-214AA J-bend package; same electrical specs but different thermal resistance (RθJA = 90 °C/W vs. SMBG's 90 °C/W on FR4; RθJL not specified). | Lower profile than SMBG but lacks visible solder joints; may require X-ray inspection for process validation. | Select when board height constraints prohibit gull-wing standoff or when J-bend footprint matches existing design rules. |
Compared with SMBG5352A/TR13, 1N5352B offers identical regulation performance in axial form but limits SMT scalability, while SMBJ5352B provides equivalent specs in a lower-profile J-bend package - both serve as functional alternatives where package geometry permits.
Availability
SMBG5352A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and programmable logic controller input protection requiring stable component supply and RoHS-compliant manufacturing.
Supply support for SMBG5352A/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 SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding power systems - emphasizing manufacturability, moisture resilience, and JEDEC compatibility.
FAQ
What is the Zener voltage tolerance for SMBG5352A/TR13?
The "A" suffix in SMBG5352A/TR13 indicates a ±10% Zener voltage tolerance. At the nominal 15 V rating, this means the actual breakdown voltage falls between 13.5 V and 16.5 V when measured at 75 mA test current and 25 °C lead temperature. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range.
Can SMBG5352A/TR13 be used as a direct replacement for 1N5352B?
Yes - SMBG5352A/TR13 is explicitly documented as electrically equivalent to 1N5352B, with identical Zener voltage, test current, dynamic impedance, and maximum regulator current. However, it is not a mechanical drop-in replacement due to its DO-215AA surface-mount gull-wing package versus the axial T-18 package of 1N5352B.
What is the maximum surge current rating for SMBG5352A/TR13?
The SMBG5352A/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 6.3 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating assumes proper PCB thermal design and is validated per JEDEC standards - critical for overvoltage clamp applications in industrial control systems.
Does SMBG5352A/TR13 require dry packing before reflow soldering?
No - SMBG5352A/TR13 carries IPC/JEDEC J-STD-020B moisture sensitivity Level 1 classification. Its plastic encapsulation exhibits negligible moisture absorption, so dry packing is unnecessary. The device supports standard Pb-free reflow profiles up to 260 °C for 10 seconds without popcorn or delamination risk.
How does the thermal resistance of SMBG5352A/TR13 affect its power handling?
SMBG5352A/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W. At 25 °C lead temperature, it delivers full 5.0 W dissipation; above that, power must be linearly derated. For example, at 75 °C lead temperature, maximum safe power drops to 3.75 W - underscoring the need for adequate copper pour or thermal vias in PCB layout.
SMBG5352A/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):
- 15 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.8 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)
SMBG5352A/TR13 FAQ
1.How can I place an order for SMBG5352A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5352A/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 SMBG5352A/TR13 reliable?
The price and inventory of SMBG5352A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5352A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5352A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5352A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5352A/TR13?
SMBG5352A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5352A/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 SMBG5352A/TR13?
For technical support, including SMBG5352A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5352A/TR13 requirements.
6.How does Aetrix verify that SMBG5352A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5352A/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 SMBG5352A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5352A/TR13?
All SMBG5352A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5352A/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 SMBG5352A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5352A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5352A/TR13 Tags
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