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Microchip Technology SMBG5377AE3/TR13
- Part No.:
- SMBG5377AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5377AE3/TR13.pdf
- Description:
- DIODE ZENER 91V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,909
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Product details
Overview
SMBG5377AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 91 V, ±10% tolerance (A suffix), 15 mA test current (IZT), 75 Ω dynamic impedance (ZZT), and maximum regulator current of 52.5 mA - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5377AE3/TR13 datasheet, SMBG5377AE3/TR13 pinout, SMBG5377AE3/TR13 application, or SMBG5377AE3/TR13 equivalent, key selection criteria include Zener voltage accuracy at IZT, thermal resistance (RθJL = 25 °C/W), surge current capability (IZSM = 760 A), and RoHS-compliant matte-tin plating for lead-free assembly.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable output voltage across wide current (5–52.5 mA) and temperature (−65 to +150 °C) ranges. Its DO-215AA gull-wing package enables visible solder joints and supports high-density PCB layouts.
It delivers low dynamic impedance (75 Ω at 15 mA) and minimal voltage drift versus current, enabling tight regulation in unregulated DC-DC converter outputs and reference voltage generation where load transients occur.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 91 V ±10% at 15 mA - defines regulated output level in feedback networks and clamp thresholds. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - sets maximum continuous power handling with adequate heatsinking. |
| Dynamic Impedance (ZZT) | 75 Ω at IZT = 15 mA - determines regulation sensitivity to current variation; lower values improve line/load regulation. |
| Max Regulator Current (IZM) | 52.5 mA - maximum DC current before exceeding 5 W rating at upper VZ tolerance limit (100.1 V). |
| Surge Current (IZSM) | 760 A (8.3 ms half-sine) - supports transient overvoltage suppression without failure. |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer from junction to lead, critical for sustained 5 W operation. |
| Reverse Leakage (IR) | 0.5 µA at VR = 65.5 V - ensures minimal standby current in high-impedance bias networks. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; leads are tin-plated (RoHS-compliant matte-tin per e3 suffix); weight: 0.1 g; moisture sensitivity level: IPC/JEDEC J-STD-020B Level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference/ground node in Zener configuration | Connected to circuit ground or lower-potential node; forms return path for Zener current. |
| Cathode | Regulated output node | Banded end; connected to voltage node requiring stabilization (e.g., feedback divider tap or clamp point). |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5377B equivalent | Identical electrical specs and test methods - enables drop-in replacement for legacy through-hole designs using adapter footprints. |
| Gull-wing lead form | Visible solder joints and automated optical inspection compatibility - improves manufacturing yield in high-volume SMT lines. |
| Level 1 moisture sensitivity | No dry-pack or baking required prior to reflow - reduces handling cost and avoids moisture-induced popcorning. |
| High surge current rating | 760 A non-repetitive peak - protects downstream circuitry from lightning-induced or inductive-switching transients. |
| Stable VZ vs. temperature | Operating range −65 to +150 °C - suitable for automotive under-hood and industrial motor drive environments. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener reference element setting precise feedback threshold at secondary-side error amplifier input. Use Value: 91 V ±10% VZ and 75 Ω ZZT ensure stable regulation despite ±10% transformer turns ratio variation and load step changes. |
Use Scenario: Clamping rail voltage during MOSFET turn-off in DC motor drivers. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing inductive kickback energy. Use Value: 760 A IZSM and 5 W PD allow single-device clamping of 48 V bus surges without external snubbers. |
| Industrial Sensor Signal Conditioning | Programmable Reference Voltage Generator |
Use Scenario: Providing stable bias voltage for 4–20 mA transmitter front-end op-amps. IC Role / Device Role / Timing Role: Precision shunt reference establishing common-mode voltage for current-loop interface ICs. Use Value: 0.5 µA IR at 65.5 V minimizes loading on high-impedance sensor bridges and maintains accuracy over temperature. |
Use Scenario: Generating adjustable reference in programmable power supply DAC output stages. IC Role / Device Role / Timing Role: Fixed-voltage node for resistor-divider scaling of DAC output to target range (e.g., 0–91 V). Use Value: Tight 10% VZ tolerance and low ZZT enable predictable scaling ratios without calibration trim components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5377B | Same VZ (91 V), ±5% tolerance (B suffix), 15 mA IZT, 75 Ω ZZT, but axial T-18 package. | Requires through-hole mounting and manual assembly; not suitable for automated SMT lines. | Select when legacy board repair or prototyping on breadboard/perfboard is needed. |
| SMBJ5377B | Same VZ (91 V), ±5% tolerance, DO-214AA J-bend package; identical electrical specs but different thermal resistance (RθJA = 90 °C/W vs. 25 °C/W). | Limited power derating on FR4 due to higher RθJA; unsuitable for sustained 5 W operation without copper pour. | Select only for space-constrained layouts where gull-wing footprint is incompatible and thermal load is intermittent. |
Compared with SMBG5377AE3/TR13, 1N5377B offers tighter tolerance but requires through-hole assembly, while SMBJ5377B shares voltage specs but sacrifices thermal performance - making SMBG5377AE3/TR13 optimal for high-reliability SMT power regulation where lead-free compliance and visible solder joints are mandatory.
Availability
SMBG5377AE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and industrial sensor signal conditioning requiring stable component supply with RoHS-compliant packaging and full traceability.
Supply support for SMBG5377AE3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount voltage regulation in high-density power systems, emphasizing thermal robustness, JEDEC compatibility, and RoHS compliance without sacrificing 5 W power handling.
FAQ
What is the Zener voltage tolerance for SMBG5377AE3/TR13?
The "A" suffix in SMBG5377AE3/TR13 denotes ±10% Zener voltage tolerance, meaning its actual breakdown voltage falls between 81.9 V and 100.1 V when measured at 15 mA and 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet and applies directly to SMBG5377AE3/TR13.
Does SMBG5377AE3/TR13 require dry packing before reflow soldering?
No - SMBG5377AE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, verified in the Mechanical and Packaging section (page 2). This means it can be stored and processed without dry pack or baking, eliminating moisture-related defects like popcorning during reflow.
What is the maximum surge current rating for SMBG5377AE3/TR13?
SMBG5377AE3/TR13 is rated for 760 A peak non-repetitive surge current (IZSM), defined as an 8.3 ms half-sine waveform. This value is explicitly listed in the Electrical Characteristics table (page 3) and reflects its capability to absorb transient energy in overvoltage protection applications.
How does the DO-215AA package of SMBG5377AE3/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5377AE3/TR13 provides visible solder joints and lower thermal resistance (RθJL = 25 °C/W) compared to the DO-214AA J-bend variant (e.g., SMBJ5377B), which has higher RθJA (90 °C/W) and no direct lead-to-lead thermal path - making SMBG5377AE3/TR13 more suitable for sustained 5 W operation.
Is SMBG5377AE3/TR13 compatible with lead-free reflow profiles?
Yes - the "e3" suffix confirms SMBG5377AE3/TR13 uses RoHS-compliant matte-tin plating, qualified for standard lead-free reflow up to 260 °C for 10 seconds (per Maximum Ratings table, page 1). This ensures reliable solder joint formation without intermetallic degradation.
SMBG5377AE3/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:
- ±10%
- 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)
SMBG5377AE3/TR13 FAQ
1.How can I place an order for SMBG5377AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5377AE3/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 SMBG5377AE3/TR13 reliable?
The price and inventory of SMBG5377AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5377AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5377AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5377AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5377AE3/TR13?
SMBG5377AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5377AE3/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 SMBG5377AE3/TR13?
For technical support, including SMBG5377AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5377AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5377AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5377AE3/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 SMBG5377AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5377AE3/TR13?
All SMBG5377AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5377AE3/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 SMBG5377AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5377AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5377AE3/TR13 Tags
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