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Microchip Technology SMBG5377C/TR13
- Part No.:
- SMBG5377C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5377C/TR13.pdf
- Description:
- DIODE ZENER 91V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,793
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Product details
Overview
SMBG5377C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 91 V, ±2% tolerance (C suffix), 15 mA test current, 75 Ω dynamic impedance at 15 mA, and 52.5 mA maximum regulator current. It regulates voltage in power supply feedback loops and overvoltage protection circuits across industrial and telecom power systems.
For engineers reviewing the SMBG5377C/TR13 datasheet, SMBG5377C/TR13 pinout, SMBG5377C/TR13 application, or SMBG5377C/TR13 equivalent, this page delivers verified electrical parameters, DO-215AA gull-wing package details, thermal derating behavior, surge current capability (760 A), and validated alternative parts for voltage reference and clamping designs.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, maintaining stable 91 V regulation across 15 mA to 52.5 mA DC current. Its 75 Ω dynamic impedance ensures minimal voltage variation under load shifts, while 760 A non-repetitive surge rating supports transient suppression in DC bus lines.
Thermal design relies on junction-to-lead resistance of 25 °C/W and junction-to-ambient of 90 °C/W when mounted on FR4 with recommended footprint. The DO-215AA gull-wing package enables visual solder inspection and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 91 V ±2% at 15 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires heatsinking or layout thermal relief above ambient |
| Dynamic Impedance (ZZT) | 75 Ω at IZT = 15 mA - limits output voltage deviation under current transients |
| Max Regulator Current (IZM) | 52.5 mA - sets upper limit for continuous DC bias in feedback networks |
| Surge Current (IZSM) | 760 A (8.3 ms half-sine) - withstands lightning-induced surges in telecom line cards |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in automotive under-hood and industrial control enclosures |
| Reverse Leakage (IR) | 0.5 µA at 69.2 V - ensures low standby power loss in high-impedance sensing paths |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only - no internal connections beyond the two leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias operation | Connected to regulated node; polarity must be observed to avoid forward conduction |
| Anode | Reference/ground terminal | Typically tied to system ground or feedback divider low-side; establishes bias reference point |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5377B equivalent | Direct functional replacement for legacy axial 1N5377B in space-constrained layouts |
| RoHS-compliant matte-tin plating | Enables lead-free reflow assembly without solderability degradation or whisker risk |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life tracking for production logistics |
| Gull-wing lead form | Permits automated optical inspection (AOI) of solder joints on double-sided PCBs |
| High surge current rating | 760 A peak allows single-device transient suppression without external MOV or TVS staging |
Applications
| DC Power Supply Feedback | Telecom Line Card Protection |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Precision voltage reference establishing error amplifier setpoint. Use Value: ±2% tolerance and 75 Ω ZZT maintain <±0.5% output regulation across line/load/temperature. |
Use Scenario: Clamping induced surges on -48 V DC distribution buses in central office equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp absorbing 8.3 ms lightning transients. Use Value: 760 A IZSM rating handles ITU-T K.20 surge profiles without degradation. |
| Industrial Motor Drive DC Bus | Test Equipment Reference |
Use Scenario: Protecting gate drivers and sensors from regenerative voltage spikes during braking. IC Role / Device Role / Timing Role: Passive crowbar element limiting bus voltage to 91 V during fault conditions. Use Value: 5 W continuous dissipation sustains clamping during extended deceleration events. |
Use Scenario: Providing stable 91 V reference in portable multimeter calibration circuits. IC Role / Device Role / Timing Role: Low-drift voltage standard for ADC reference scaling. Use Value: 0.5 µA leakage at 69.2 V minimizes loading error in high-Z divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5377B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM; higher RθJA (125 °C/W vs. 90 °C/W) | Requires through-hole assembly; unsuitable for high-density SMT boards | Select when legacy board compatibility or manual repair is prioritized over board area savings |
| SMBJ5377C | DO-214AA J-bend package; same electrical specs but 100 °C/W RθJA; 10% lower IZSM (680 A) | Compatible with standard SMT pick-and-place but less robust against high-energy surges | Choose when footprint compatibility with SMBJ series is required and surge margin is secondary |
Compared with SMBG5377C/TR13, 1N5377B offers identical regulation performance but demands more PCB real estate and thermal management, while SMBJ5377C trades surge resilience for broader SMT placement flexibility in mixed-technology assemblies.
Availability
SMBG5377C/TR13 is available at Aetrix Electronics and suitable for DC power supply feedback, telecom line card protection, and industrial motor drive DC bus applications requiring stable component supply, RoHS compliance, and high-surge reliability.
Supply support for SMBG5377C/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, RF, and timing solutions for aerospace, defense, and industrial markets.
SMBG5377C/TR13 belongs to the SMBG53xxB Zener diode family designed for surface-mount voltage regulation and transient suppression in high-density power systems where precision, surge immunity, and manufacturability are critical.
FAQ
What is the Zener voltage tolerance for SMBG5377C/TR13?
The "C" suffix in SMBG5377C/TR13 specifies a ±2% Zener voltage tolerance at 15 mA test current, meaning the actual VZ falls between 89.18 V and 92.82 V under standard test conditions. This tighter tolerance supports precision regulation in closed-loop power supplies where output accuracy directly impacts system performance.
Does SMBG5377C/TR13 require dry packing before reflow soldering?
No, SMBG5377C/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, so it does not require dry packing or floor-life controls prior to reflow. The device can be stored and assembled under standard factory conditions without baking, simplifying manufacturing logistics and reducing handling cost.
What is the maximum surge current rating for SMBG5377C/TR13?
SMBG5377C/TR13 is rated for 760 A peak non-repetitive surge current (IZSM) using an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0246-1 and applies directly to the SMBG5377C/TR13 variant.
How does the thermal resistance of SMBG5377C/TR13 affect its power handling?
SMBG5377C/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W when mounted on FR4 with the recommended pad layout. At 25 °C ambient, full 5 W dissipation is only possible if lead temperature stays below 25 °C - otherwise, power must be derated per Figure 1 to prevent junction temperatures exceeding +150 °C.
Is SMBG5377C/TR13 compatible with lead-free reflow processes?
Yes, SMBG5377C/TR13 uses RoHS-compliant annealed matte-tin plating and is qualified for Pb-free reflow up to 260 °C for 10 seconds. The device meets MIL-STD-750 Method 2026 for solderability and maintains integrity through standard JEDEC J-STD-020 profile cycles without delamination or voiding.
SMBG5377C/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):
- 91 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 75 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 65.5 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)
SMBG5377C/TR13 FAQ
1.How can I place an order for SMBG5377C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5377C/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 SMBG5377C/TR13 reliable?
The price and inventory of SMBG5377C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5377C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5377C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5377C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5377C/TR13?
SMBG5377C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5377C/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 SMBG5377C/TR13?
For technical support, including SMBG5377C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5377C/TR13 requirements.
6.How does Aetrix verify that SMBG5377C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5377C/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 SMBG5377C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5377C/TR13?
All SMBG5377C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5377C/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 SMBG5377C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5377C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5377C/TR13 Tags
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