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Microchip Technology SMBG5352B/TR13
- Part No.:
- SMBG5352B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5352B/TR13.pdf
- Description:
- DIODE ZENER 15V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,792
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Product details
Overview
SMBG5352B/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal breakdown voltage of 15 V, ±5% tolerance (B suffix), 2.5 Ω dynamic impedance at 75 mA test current, and maximum regulator current of 6.3 A under proper thermal conditions. It serves as a precision voltage reference and overvoltage clamp in power supply regulation circuits.
For engineers reviewing the SMBG5352B/TR13 datasheet, SMBG5352B/TR13 pinout, SMBG5352B/TR13 application, or SMBG5352B/TR13 equivalent, this part is selected for stable 15 V regulation in DC-DC converters, ESD-protected I/O interfaces, and industrial sensor biasing where tight voltage control and surge resilience are required.
Technical Context
This device operates in reverse-biased Zener breakdown mode with a specified test current (IZT) of 75 mA and exhibits low dynamic impedance (ZZT = 2.5 Ω), ensuring minimal voltage variation across load current changes. Its cathode band marking and gull-wing DO-215AA package support automated optical inspection and high-density PCB layouts.
The SMBG5352B/TR13 delivers 5 W power dissipation at lead temperature (TL) ≤ 25 °C, derating linearly above that point per the published curve. It withstands non-repetitive 8.3 ms half-sine surge currents up to 6.3 A and maintains <1 µA reverse leakage at VR = 10.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±5% at IZT = 75 mA - defines stable regulation point for feedback loops and reference rails. |
| Power Dissipation (PD) | 5.0 W at TL ≤ 25 °C - requires thermal management via copper pour or heatsinking for sustained operation. |
| Dynamic Impedance (ZZT) | 2.5 Ω at IZT = 75 mA - ensures <188 mV output shift per 75 mA load change, critical for low-noise references. |
| Max Regulator Current (IZM) | 6.3 A - sets absolute DC current limit before thermal runaway; determined by P/VZM = 5 W / 15.75 V. |
| Reverse Leakage (IR) | 1.0 µA at VR = 10.8 V - guarantees negligible standby current in battery-powered clamping applications. |
| Junction Temp Range | –65 °C to +150 °C - supports operation in automotive engine compartments and industrial enclosures. |
| Thermal Resistance (RθJL) | 25 °C/W junction-to-lead - enables accurate thermal modeling when mounted on FR4 with recommended pad layout. |
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 |
|---|---|---|
| Anode | Current entry terminal in forward bias; referenced ground in Zener regulation | Connected to system ground or lower-potential node; establishes reference polarity for clamping. |
| Cathode | Current exit terminal in forward bias; regulated output node in Zener mode | Banded terminal connected to input rail or signal line requiring 15 V stabilization or overvoltage protection. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5352B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs certified to MIL-STD-750. |
| Moisture Sensitivity Level 1 | No dry pack required - eliminates baking step prior to reflow, reducing manufacturing cost and cycle time. |
| Gull-wing leads | Visible solder joints - supports AOI and X-ray inspection for high-reliability aerospace and medical assemblies. |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-020B solderability requirements - ensures consistent wetting during lead-free reflow profiles. |
| High surge current rating | 6.3 A non-repetitive 8.3 ms half-sine - protects downstream circuitry from transient events like load dump or ESD. |
Applications
| Industrial Power Supply Regulation | Automotive Sensor Biasing |
|---|---|
Use Scenario: Stabilizing 15 V reference for op-amp comparators and ADC drivers in programmable logic controllers. IC Role / Device Role / Timing Role: Voltage reference and overvoltage clamp protecting analog front-end inputs. Use Value: Maintains ±0.75 V regulation window across –40 °C to +125 °C, enabling accurate sensor signal conditioning without calibration drift. |
Use Scenario: Providing stable 15 V bias to Hall-effect position sensors in transmission control modules. IC Role / Device Role / Timing Role: Precision shunt regulator isolating sensor ICs from noisy 12 V battery rail. Use Value: Withstands 100 V load-dump transients per ISO 7637-2 while holding bias within 15 V ±0.5 V during normal operation. |
| Telecom Line Card Protection | Medical Imaging Power Sequencing |
Use Scenario: Clamping surge energy on -48 V DC distribution lines in base station remote radio units. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting peak voltage to 15.75 V during lightning-induced surges. Use Value: Absorbs 50 J single-event surge (per IEC 61000-4-5) without degradation, preserving line card uptime. |
Use Scenario: Enabling controlled power-up sequencing of FPGA and ASIC supplies in MRI gradient amplifier subsystems. IC Role / Device Role / Timing Role: Reference element in discrete voltage supervisor circuits monitoring 15 V auxiliary rails. Use Value: Provides sub-100 ppm/°C voltage stability over temperature, ensuring deterministic reset timing across thermal cycles. |
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 specs; higher RθJA (150 °C/W vs. 90 °C/W). | Requires through-hole mounting and larger board area; unsuitable for high-density SMT production. | Select when legacy through-hole assembly or manual prototyping is used; not recommended for new SMT designs. |
| SMBJ5352 | DO-214AA J-bend package; same VZ and tolerance; slightly higher ZZT (3.0 Ω); identical IZM and surge rating. | Lower profile but less visible solder joint; marginally reduced thermal performance due to different leadframe geometry. | Choose for space-constrained boards where gull-wing inspection is not required and thermal margin allows. |
Compared with SMBG5352B/TR13, 1N5352B demands PCB redesign for through-hole placement and offers inferior thermal resistance, while SMBJ5352 trades solder-joint visibility for compactness but retains functional equivalence in regulation accuracy and surge handling.
Availability
SMBG5352B/TR13 is available at Aetrix Electronics and suitable for industrial power supply regulation, automotive sensor biasing, and telecom line card protection requiring stable component supply, RoHS compliance, and JEDEC-verified Zener performance.
Supply support for SMBG5352B/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-registered Zener performance in surface-mount form, targeting high-density power management and ruggedized voltage reference applications where reliability and traceability are critical.
FAQ
What is the Zener voltage tolerance for SMBG5352B/TR13?
The 'B' suffix in SMBG5352B/TR13 indicates a ±5% Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 14.25 V and 15.75 V at 75 mA test current and 25 °C. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 °C to +150 °C. SMBG5352B/TR13 meets the same specification limits as the axial 1N5352B.
Can SMBG5352B/TR13 be used in place of 1N5352B?
Yes, SMBG5352B/TR13 is functionally equivalent to 1N5352B per the manufacturer's documentation, sharing identical electrical characteristics including VZ, IZT, ZZT, IZM, and IR. However, SMBG5352B/TR13 uses a DO-215AA gull-wing package versus the T-18 axial package of 1N5352B, so PCB layout and assembly process must be updated accordingly. SMBG5352B/TR13 is not a pin-compatible drop-in replacement.
What is the maximum continuous power dissipation for SMBG5352B/TR13?
SMBG5352B/TR13 is rated for 5.0 W continuous power dissipation only when the lead temperature (TL) is maintained at or below 25 °C. At ambient temperature (TA) = 25 °C on a standard FR4 board with recommended footprint, its usable power drops to 1.38 W due to higher thermal resistance junction-to-ambient (90 °C/W). Derating curves in the datasheet must be applied for operation above 25 °C.
Does SMBG5352B/TR13 require moisture preconditioning before reflow?
No, SMBG5352B/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This eliminates pre-reflow baking steps and reduces manufacturing risk for high-volume SMT lines. The device uses void-free epoxy encapsulation meeting UL94V-0 flammability standards.
What is the surge current rating for SMBG5352B/TR13?
SMBG5352B/TR13 is rated for a non-repetitive peak surge current (IZSM) of 6.3 A, defined as the maximum value of an 8.3 ms half-sine waveform. This rating enables robust protection against common transients such as inductive switching spikes and ESD events. The surge capability is validated per MIL-STD-750 Method 3015 and remains effective across the full junction temperature range.
SMBG5352B/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:
- ±5%
- 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)
SMBG5352B/TR13 FAQ
1.How can I place an order for SMBG5352B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5352B/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 SMBG5352B/TR13 reliable?
The price and inventory of SMBG5352B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5352B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5352B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5352B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5352B/TR13?
SMBG5352B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5352B/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 SMBG5352B/TR13?
For technical support, including SMBG5352B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5352B/TR13 requirements.
6.How does Aetrix verify that SMBG5352B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5352B/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 SMBG5352B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5352B/TR13?
All SMBG5352B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5352B/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 SMBG5352B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5352B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5352B/TR13 Tags
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