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Microchip Technology SMBG5350BE3/TR13
- Part No.:
- SMBG5350BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5350BE3/TR13.pdf
- Description:
- DIODE ZENER 13V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,945
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Product details
Overview
SMBG5350BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 13 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It delivers stable voltage regulation across wide current (100 mA IZT) and temperature (–65 to +150 °C) ranges, used in power supply overvoltage clamping and reference circuits.
For engineers reviewing the SMBG5350BE3/TR13 datasheet, SMBG5350BE3/TR13 pinout, SMBG5350BE3/TR13 application, or SMBG5350BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (7.0 A IZSM), thermal resistance (25 °C/W junction-to-lead), and JEDEC 1N5350B equivalence for legacy design migration.
Technical Context
This device operates as a precision shunt regulator in reverse-biased mode, with cathode band marking polarity. Its 13 V nominal Zener voltage is specified at 100 mA test current (IZT), exhibiting 2.5 Ω dynamic impedance (ZZT) and 1.0 µA maximum reverse leakage at 10.1 V (VR).
Designed for high-surge resilience, it withstands non-repetitive 8.3 ms half-sine surges up to 7.0 A (IZSM) and maintains regulation stability with minimal voltage drift versus current-critical for transient suppression in DC power rails and feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±5% at 100 mA - defines precise clamping threshold for 12 V system protection |
| Power Dissipation | 5.0 W at TL < 25 °C - requires thermal management on PCB for sustained operation |
| Dynamic Impedance (ZZT) | 2.5 Ω at 100 mA - ensures low voltage variation under load current changes |
| Max Surge Current (IZSM) | 7.0 A (8.3 ms half-sine) - handles common power-line transients without failure |
| Junction-to-Lead Thermal Resistance | 25 °C/W - enables direct thermal path to PCB copper for efficient heat transfer |
| Reverse Leakage (IR) | 1.0 µA max at 10.1 V - minimizes standby power loss in high-impedance bias networks |
| Operating Temperature | –65 to +150 °C - supports industrial and automotive under-hood environments |
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) | Regulator output node | Connected to protected rail; sinks current to clamp voltage above 13 V |
| Anode | Reference/return node | Connected to ground or lower-potential reference; completes regulation loop |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5350B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required pre-reflow |
| Gull-wing lead form | Enables visual solder joint inspection and reliable reflow attachment on FR4 boards |
| High surge current capability | 7.0 A non-repetitive peak - exceeds IEC 61000-4-5 Level 3 surge immunity requirements |
| Low dynamic impedance | 2.5 Ω at 100 mA - reduces output voltage deviation during dynamic load steps |
Applications
| DC Power Rail Clamping | Feedback Reference in SMPS |
|---|---|
Use Scenario: Protecting 12 V automotive ECUs from load-dump transients up to 40 V. IC Role / Device Role / Timing Role: Shunt clamping element placed between rail and ground. Use Value: Limits peak voltage to ≤13.7 V (13 V × 1.05) while absorbing 5 W continuously and 7 A surges. |
Use Scenario: Providing stable 13 V reference for optocoupler-based feedback in isolated flyback converters. IC Role / Device Role / Timing Role: Precision voltage reference in secondary-side regulation loop. Use Value: ±5% tolerance and 2.5 Ω impedance ensure <±0.5% output voltage drift across line/load/temperature. |
| Overvoltage Protection in Industrial PLCs | ESD-Suppressed Sensor Interface |
Use Scenario: Safeguarding 24 V I/O modules against field-wiring faults and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input protection stage. Use Value: Withstands 1000+ surge events per MIL-STD-750 method 2026 without parameter shift. |
Use Scenario: Shielding analog sensor inputs (e.g., 4–20 mA transmitters) from ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance shunt limiter on signal line to ground. Use Value: 1.0 µA IR at 10.1 V prevents loading of high-impedance sensor outputs while clamping >8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZSM specs. | Requires through-hole assembly; not suitable for high-density SMT layouts. | Select when legacy through-hole manufacturing or manual prototyping is used. |
| SMBJ5350B | DO-214AA (J-bend) package; same electrical specs but higher RθJA (90 °C/W vs. 25 °C/W). | Lower thermal performance in high-power continuous operation; suited for lower-duty-cycle clamping. | Select when board space constraints favor J-bend footprint over gull-wing, and thermal load is intermittent. |
Compared with SMBG5350BE3/TR13, 1N5350B offers identical regulation performance but mandates through-hole assembly, while SMBJ5350B trades thermal efficiency for compact J-bend mounting-making SMBG5350BE3/TR13 optimal for thermally demanding SMT applications requiring visible solder joints and JEDEC-compliant reliability.
Availability
SMBG5350BE3/TR13 is available at Aetrix Electronics and suitable for DC power rail clamping, feedback reference in SMPS, and overvoltage protection in industrial PLCs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5350BE3/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-identical Zener performance in surface-mount form for high-density power management and protection circuits where thermal robustness and surge resilience are critical.
FAQ
What is the Zener voltage tolerance of SMBG5350BE3/TR13?
The 'B' suffix in SMBG5350BE3/TR13 denotes ±5% Zener voltage tolerance, meaning its actual breakdown voltage falls between 12.35 V and 13.65 V at 100 mA test current and 25 °C. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 to +150 °C.
Is SMBG5350BE3/TR13 compatible with lead-free reflow processes?
Yes, SMBG5350BE3/TR13 features RoHS-compliant matte-tin plating (e3 suffix) and is rated for solder temperatures up to 260 °C for 10 seconds, fully compliant with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry-pack preconditioning is required before reflow.
How does SMBG5350BE3/TR13 compare to the axial 1N5350B in electrical performance?
SMBG5350BE3/TR13 matches 1N5350B identically in all electrical parameters-including 13 V ±5% VZ, 100 mA IZT, 2.5 Ω ZZT, 1.0 µA IR at 10.1 V, and 7.0 A IZSM-per Microsemi's documentation. The only differences are mechanical: DO-215AA gull-wing vs. T-18 axial package and RoHS-compliant plating.
What is the maximum continuous power dissipation for SMBG5350BE3/TR13 on a standard FR4 board?
When mounted on a standard FR4 PCB with 1 oz copper and Microsemi's recommended pad layout, SMBG5350BE3/TR13 delivers 1.38 W at 25 °C ambient (TA). At lead temperature TL < 25 °C, it sustains full 5.0 W-requiring heatsinking or copper pour to maintain TL within limits.
Does SMBG5350BE3/TR13 require derating above 25 °C ambient temperature?
Yes, SMBG5350BE3/TR13 follows a linear power derating curve starting at 25 °C ambient, with thermal resistance RθJA = 90 °C/W. For example, at TA = 70 °C, maximum allowable power drops to approximately 0.97 W (calculated as 5.0 W × [1 − (70−25)/90]). Full derating data is shown in Figure 1 of the datasheet.
SMBG5350BE3/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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.4 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)
SMBG5350BE3/TR13 FAQ
1.How can I place an order for SMBG5350BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5350BE3/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 SMBG5350BE3/TR13 reliable?
The price and inventory of SMBG5350BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5350BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5350BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5350BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5350BE3/TR13?
SMBG5350BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5350BE3/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 SMBG5350BE3/TR13?
For technical support, including SMBG5350BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5350BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5350BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5350BE3/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 SMBG5350BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5350BE3/TR13?
All SMBG5350BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5350BE3/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 SMBG5350BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5350BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5350BE3/TR13 Tags
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MM5Z5V1ST1G
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