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Microchip Technology SMBG5365B/TR13
- Part No.:
- SMBG5365B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5365B/TR13.pdf
- Description:
- DIODE ZENER 36V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,681
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Product details
Overview
SMBG5365B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 36 V, ±5% tolerance (B suffix), 30 mA test current (IZT), 11 Ω dynamic impedance (ZZT), and 160 mA maximum regulator current (IZM). It operates in the DO-215AA gull-wing package and is used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5365B/TR13 datasheet, SMBG5365B/TR13 pinout, SMBG5365B/TR13 application, or SMBG5365B/TR13 equivalent, key selection criteria include Zener voltage stability across temperature, surge current capability (IZSM = 160 A), thermal resistance (RθJL = 25 °C/W), and RoHS-compliant matte-tin plating compatibility with lead-free reflow.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown, maintaining stable output voltage under varying load and temperature conditions. Its Zener voltage is specified at 36 V ±5% at 30 mA (IZT), with low dynamic impedance (11 Ω) ensuring minimal voltage deviation with current changes.
The SMBG5365B/TR13 is rated for 5 W dissipation at lead temperature ≤25 °C, derates linearly above that point per Figure 1, and withstands non-repetitive 8.3 ms half-sine surge currents up to 160 A - critical for transient suppression in industrial DC rails and telecom power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V ±5% at IZT = 30 mA - defines regulated output voltage in feedback or clamp applications |
| Power Dissipation (PD) | 5.0 W at TL ≤ 25 °C - requires thermal management when mounted on FR4 with recommended pad layout |
| Dynamic Impedance (ZZT) | 11 Ω at IZT = 30 mA - ensures <0.33 V variation per 30 mA load change near regulation point |
| Max Regulator Current (IZM) | 160 mA - sets upper limit for continuous DC current without exceeding 5 W rating at TL = 25 °C |
| Surge Current (IZSM) | 160 A (8.3 ms half-sine) - enables single-event transient suppression without failure |
| Reverse Leakage (IR) | 0.5 µA at VR = 25.9 V - confirms low off-state power loss in high-impedance bias networks |
| Junction Temp Range | –65 to +150 °C - supports operation in extended-temperature industrial and automotive under-hood environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; terminals are anode (unbanded end) and cathode (banded end); polarity must be observed during PCB placement to ensure correct reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node in shunt regulator configuration | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode | Regulated output node in shunt regulator configuration | Connected to voltage being regulated; clamps or references against this terminal |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Fully compatible with legacy 1N5365B in electrical specs, test methods, and qualification standards |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling, storage, and SMT assembly logistics |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-020B reflow requirements up to 260 °C for 10 s |
| Gull-wing lead form | Enables visual solder joint inspection and improves mechanical reliability vs. J-bend packages |
| High surge current rating | 160 A non-repetitive surge withstand supports robust overvoltage protection in 24/48 V DC systems |
Applications
| Industrial Power Supply Feedback | Telecom DC Input Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to optocoupler input. Use Value: 36 V Zener voltage matches common TL431-based feedback thresholds; ±5% tolerance ensures stable regulation within 1.8 V window. |
Use Scenario: Clamping 48 V DC telecom input rail against lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage protection element absorbing transient energy before downstream converters. Use Value: 160 A surge rating handles IEC 61000-4-5 Level 4 surges; DO-215AA gull-wing design maintains solder integrity under thermal cycling. |
| Automotive Body Control Module | Programmable Logic Controller I/O Protection |
Use Scenario: Protecting 3.3 V/5 V microcontroller I/O pins from load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Secondary clamp staged after TVS diode, handling slower, higher-energy events. Use Value: –65 to +150 °C junction range supports under-hood operation; 11 Ω ZZT minimizes clamping voltage overshoot during sustained overvoltage. |
Use Scenario: Safeguarding analog input channels in PLC modules exposed to field wiring faults. IC Role / Device Role / Timing Role: Precision voltage limiter defining absolute max input level for ADC front-end. Use Value: 36 V regulation provides margin above 24 V nominal field bus; 0.5 µA IR at 25.9 V prevents loading of high-Z sensor signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5365B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs; no gull-wing geometry. | Requires through-hole assembly; unsuitable for high-density SMT layouts or automated pick-and-place. | Select 1N5365B only when legacy through-hole design or manual prototyping mandates axial form factor. |
| SMBJ5365B | DO-214AA J-bend package; same electrical specs but different thermal resistance (RθJA = 100 °C/W vs. 90 °C/W) and footprint. | Lower profile than SMBG but less visible solder joints; slightly reduced thermal performance on FR4. | Choose SMBJ5365B if board space constraints favor J-bend leads or existing footprint reuse is prioritized over visual inspection capability. |
Compared with SMBG5365B/TR13, 1N5365B requires PCB redesign for through-hole mounting, while SMBJ5365B offers footprint compatibility with other SMBJ-series devices but sacrifices gull-wing inspectability and marginally higher thermal resistance.
Availability
SMBG5365B/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC input protection, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5365B/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The SMBG53xxB series targets surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding applications where JEDEC-compatibility and moisture-insensitive packaging are essential.
FAQ
What is the Zener voltage tolerance for SMBG5365B/TR13?
The "B" suffix in SMBG5365B/TR13 indicates a ±5% Zener voltage tolerance. At 30 mA test current (IZT), the measured VZ falls between 34.2 V and 37.8 V. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 to +150 °C, making SMBG5365B/TR13 suitable for applications requiring predictable regulation bandwidth without tight binning.
Can SMBG5365B/TR13 replace 1N5365B in an existing design?
SMBG5365B/TR13 is electrically equivalent to 1N5365B but uses a DO-215AA gull-wing surface-mount package instead of the axial T-18 package. Direct replacement requires PCB redesign to accommodate the SMT footprint and reflow profile. No electrical revalidation is needed - VZ, IZT, ZZT, IZM, and surge ratings match exactly per Microsemi's documentation.
What is the maximum continuous power dissipation for SMBG5365B/TR13?
SMBG5365B/TR13 is rated for 5.0 W continuous power dissipation only when lead temperature (TL) is maintained at or below 25 °C. Above that, power must be derated linearly per Figure 1 in the datasheet - e.g., at TL = 75 °C, maximum allowable PD drops to ~3.9 W. Thermal design must use RθJL = 25 °C/W and follow the recommended FR4 pad layout to achieve rated performance.
Is SMBG5365B/TR13 RoHS compliant?
Yes, SMBG5365B/TR13 carries RoHS-compliant matte-tin plating per J-STD-020B, confirmed by the "e3" marking variant (e.g., SMBG5365Be3/TR13). The standard SMBG5365B/TR13 is also RoHS compliant per Microsemi's product definition - both versions meet lead-free reflow requirements up to 260 °C for 10 seconds and carry no exemption codes.
What does the "TR13" suffix indicate in SMBG5365B/TR13?
The "TR13" suffix denotes tape-and-reel packaging per EIA-481-1-A standard, using a 12 mm carrier tape with 1,000 units per reel. This format is optimized for automated SMT placement equipment. The "TR" portion is the standard tape-and-reel indicator; "13" specifies reel quantity code per Microsemi's internal ordering convention - not a revision or date code.
SMBG5365B/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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 25.9 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)
SMBG5365B/TR13 FAQ
1.How can I place an order for SMBG5365B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5365B/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 SMBG5365B/TR13 reliable?
The price and inventory of SMBG5365B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5365B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5365B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5365B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5365B/TR13?
SMBG5365B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5365B/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 SMBG5365B/TR13?
For technical support, including SMBG5365B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5365B/TR13 requirements.
6.How does Aetrix verify that SMBG5365B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5365B/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 SMBG5365B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5365B/TR13?
All SMBG5365B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5365B/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 SMBG5365B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5365B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5365B/TR13 Tags
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