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Microchip Technology SMBG5352BE3/TR13
- Part No.:
- SMBG5352BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5352BE3/TR13.pdf
- Description:
- DIODE ZENER 15V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,619
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Product details
Overview
SMBG5352BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal Zener 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 thermal lead conditions - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5352BE3/TR13 datasheet, SMBG5352BE3/TR13 pinout, SMBG5352BE3/TR13 application, or SMBG5352BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (6.3 A), thermal resistance (25 °C/W junction-to-lead), RoHS-compliant matte-tin plating, and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device operates as a reverse-biased voltage reference diode, maintaining stable output voltage across wide current (1–6.3 A) and temperature (−65 to +150 °C) ranges. Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation under load transients.
The SMBG5352BE3/TR13 uses a void-free thermosetting epoxy case (UL94V-0), gull-wing leads with annealed matte-tin plating per MIL-STD-750 method 2026, and features moisture sensitivity level 1 - eliminating dry-pack requirements per IPC/JEDEC J-STD-020B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±5% at 75 mA - defines precise clamping threshold for overvoltage protection and feedback sensing. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports high-energy transient suppression when mounted with adequate heat sinking. |
| Dynamic Impedance (ZZT) | 2.5 Ω at IZT = 75 mA - ensures tight regulation under varying load currents in closed-loop systems. |
| Max Regulator Current (IZM) | 6.3 A - enables robust surge handling per non-repetitive 8.3 ms half-sine waveform per JEDEC standards. |
| Junction-to-Lead Thermal Resistance | 25 °C/W - allows direct thermal path to PCB copper, critical for sustained 5 W operation without derating. |
| Reverse Leakage (IR) | 1.0 µA at VR = 10.8 V - guarantees low standby power loss in high-impedance bias networks. |
| Forward Voltage (VF) | 1.2 V at 1.0 A - supports use as polarity-sensitive clamp or series rectifier in dual-function designs. |
Pinout & Package
Package: DO-215AA gull-wing surface-mount package (JEDEC standard), 0.1 g weight, UL94V-0 epoxy body, cathode indicated by band - banded end must be biased positive relative to anode for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or low-side return path; establishes reference potential for Zener breakdown. |
| Cathode | Regulated output node | Banded terminal; connects to voltage rail being regulated or clamped - reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5352B Equivalent | Identical electrical characteristics and test methods - enables drop-in replacement in legacy designs certified to MIL-STD-750. |
| RoHS Compliant Matte-Tin Plating | e3 suffix confirms lead-free finish meeting IPC-J-STD-006B - eliminates Pb contamination risk in medical/industrial assemblies. |
| Gull-Wing Lead Geometry | DO-215AA footprint enables visual solder joint inspection and high-yield reflow - critical for automotive and aerospace production lines. |
| Moisture Sensitivity Level 1 | No dry pack required before SMT placement - reduces handling cost and avoids bake-out delays in high-volume manufacturing. |
| High Surge Current Rating | 6.3 A peak non-repetitive surge (8.3 ms half-sine) - protects downstream ICs from lightning-induced transients in telecom interfaces. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizes error amplifier reference in isolated flyback converters operating from 9–36 V DC input. IC Role / Device Role / Timing Role: Zener diode provides precise 15 V reference for TL431 or optocoupler bias network. Use Value: 2.5 Ω dynamic impedance minimizes output voltage drift across 10–100% load steps, improving regulation to ±1.5%. | Use Scenario: Clamps 24 V sensor supply rail against ESD events in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Primary overvoltage protector placed upstream of analog front-end op-amps and ADC drivers. Use Value: 6.3 A surge rating absorbs IEC 61000-4-2 Level 4 contact discharge (8 kV) without degradation. |
| Automotive Body Control Module | Telecom Line Card Protection |
Use Scenario: Regulates 15 V microcontroller supply in BCM modules exposed to load-dump transients up to 35 V. IC Role / Device Role / Timing Role: Standby Zener shunt regulator activated only during overvoltage events above 15.8 V (VZM max). Use Value: 25 °C/W RθJL enables direct thermal coupling to chassis ground plane - sustains 5 W dissipation for 100 ms during ISO 7637-2 Pulse 5a. | Use Scenario: Protects Ethernet PHY interface from induced surges on PoE-powered line cards. IC Role / Device Role / Timing Role: Secondary clamping device in multi-stage TVS architecture, triggered after primary GDT conduction. Use Value: Low 1.0 µA leakage at 10.8 V prevents false triggering in high-impedance bias networks feeding 100BASE-TX transformers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5352BRLG | Same 15 V ±5%, 5 W rating, but in axial DO-204AL (T-18) package with Sn/Pb plating. | Requires through-hole assembly and manual rework; unsuitable for high-density SMT layouts. | Select when legacy board repair or prototyping on breadboard/perfboard is needed. |
| SMBJ5352B | Identical electrical specs, but in DO-214AA (J-bend) package with higher RθJA = 100 °C/W and no gull-wing visibility. | Limited thermal performance on FR4; not recommended for continuous 5 W operation without copper pour. | Choose only if existing footprint mandates DO-214AA - verify thermal margin via board-level simulation. |
Compared with 1N5352BRLG and SMBJ5352B, the SMBG5352BE3/TR13 uniquely combines RoHS compliance, gull-wing solder visibility, and 25 °C/W junction-to-lead thermal resistance - making it optimal for volume-manufactured industrial and automotive SMT designs requiring traceable thermal performance.
Availability
SMBG5352BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive body control modules, and telecom line card protection requiring stable component supply across extended temperature and surge stress conditions.
Supply support for SMBG5352BE3/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 specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments - emphasizing thermal robustness, JEDEC compatibility, and process-controlled Zener tolerances.
FAQ
What is the Zener voltage tolerance for SMBG5352BE3/TR13?
The "B" suffix in SMBG5352BE3/TR13 indicates a ±5% Zener voltage tolerance, meaning the measured VZ falls between 14.25 V and 15.75 V at 75 mA test current and 25 °C. This tolerance is verified per JEDEC test method JESD24-A and applies across the full −65 to +150 °C operating range.
Does SMBG5352BE3/TR13 require dry packing before reflow soldering?
No, SMBG5352BE3/TR13 has a moisture sensitivity level (MSL) of 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without dry packing or baking. The void-free UL94V-0 epoxy encapsulation and matte-tin plating ensure zero moisture absorption risk during standard SMT reflow profiles.
How does the thermal resistance of SMBG5352BE3/TR13 compare to other 5 W Zeners?
SMBG5352BE3/TR13 specifies RθJL = 25 °C/W (junction-to-lead), significantly lower than typical RθJA = 90 °C/W (junction-to-ambient). This design prioritizes thermal conduction through the gull-wing leads into PCB copper, enabling full 5 W dissipation without external heatsinks - unlike DO-214AA or axial alternatives that rely on ambient convection.
Can SMBG5352BE3/TR13 replace 1N5352B in existing designs?
Yes, SMBG5352BE3/TR13 is explicitly stated as electrically equivalent to JEDEC 1N5352B with identical test conditions and performance parameters. However, the DO-215AA gull-wing package requires PCB footprint revision - it is not a drop-in replacement for axial 1N5352B but is fully compatible with SMT versions like SMBJ5352B when layout allows.
What is the maximum non-repetitive surge current for SMBG5352BE3/TR13?
The SMBG5352BE3/TR13 supports a maximum Zener surge current (IZSM) of 6.3 A for a single 8.3 ms half-sine waveform, as defined in Note 4 of the datasheet. This value is validated under standardized surge testing per JEDEC JESD22-A114 and is usable for IEC 61000-4-5 Level 3 (1 kV) and Level 4 (2 kV) immunity compliance.
SMBG5352BE3/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)
SMBG5352BE3/TR13 FAQ
1.How can I place an order for SMBG5352BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5352BE3/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 SMBG5352BE3/TR13 reliable?
The price and inventory of SMBG5352BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5352BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5352BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5352BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5352BE3/TR13?
SMBG5352BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5352BE3/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 SMBG5352BE3/TR13?
For technical support, including SMBG5352BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5352BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5352BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5352BE3/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 SMBG5352BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5352BE3/TR13?
All SMBG5352BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5352BE3/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 SMBG5352BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5352BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5352BE3/TR13 Tags
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