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Microchip Technology SMBG5377CE3/TR13
- Part No.:
- SMBG5377CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5377CE3/TR13.pdf
- Description:
- DIODE ZENER 91V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,016
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Product details
Overview
SMBG5377CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 91 V, ±2% tolerance (C suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5377CE3/TR13 datasheet, SMBG5377CE3/TR13 pinout, SMBG5377CE3/TR13 application, or SMBG5377CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (760 A), thermal resistance (90 °C/W on FR4), and JEDEC 1N5377B compatibility for legacy design reuse.
Technical Context
This device operates in reverse-biased breakdown mode with a specified test current (IZT) of 15 mA and dynamic impedance (ZZT) of 75 Ω at that point. Its knee impedance (ZZK) is 52.5 Ω at 1.0 mA, indicating stable regulation near the breakdown threshold.
The SMBG5377CE3/TR13 supports high-surge capability (760 A, 8.3 ms half-sine) and maintains moisture sensitivity level 1 per J-STD-020B-no dry pack required. It exhibits minimal voltage drift versus current and is non-sensitive to ESD per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 91 V ±2% at 15 mA - precise reference for 90–92 V regulation in feedback loops |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management above ambient for full-power operation |
| Max Regulator Current (IZM) | 760 mA - maximum continuous DC current before exceeding 5 W at upper voltage limit |
| Surge Current (IZSM) | 760 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Dynamic Impedance (ZZT) | 75 Ω at 15 mA - low AC impedance ensures stable output under varying load conditions |
| Reverse Leakage (IR) | 0.5 µA at 73 V - negligible standby current in high-impedance bias networks |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu) - dictates PCB copper area needed for thermal compliance |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; leads are solderable per MIL-STD-750 method 2026. Polarity: banded end is cathode (positive terminal during reverse bias).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground/reference node in Zener regulator configuration | Connected to system ground or lower-potential rail; forms return path for regulation current |
| Cathode | Regulated output node | Connected to feedback point or protected circuit node; maintains 91 V relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5377B equivalence | Identical electrical characteristics and testing - enables drop-in replacement in legacy through-hole designs using adapter layouts |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling, storage, and assembly logistics for production lines |
| RoHS-compliant matte-tin finish (e3) | Lead-free solder compatibility with standard reflow profiles - meets environmental compliance without derating |
| Gull-wing lead form (DO-215AA) | Visible solder joints - enables automated optical inspection (AOI) and improves process yield verification |
| High surge current rating | 760 A peak (8.3 ms) - protects downstream circuitry against lightning-induced or inductive-switching transients |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp for Industrial I/O |
|---|---|
Use Scenario: Stabilizes error amplifier reference in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener diode provides precise 91 V reference to TL431 or optocoupler bias network. Use Value: ±2% tolerance ensures tight output voltage regulation (±1.5%) across line/load/temperature; 75 Ω dynamic impedance minimizes feedback loop noise injection. |
Use Scenario: Clamps 24 V DC input lines exposed to inductive kickback in PLC digital input modules. IC Role / Device Role / Timing Role: Shunts transient energy above 91 V to protect downstream TVS and interface ICs. Use Value: 760 A surge rating absorbs 100 A/µs transients without degradation; DO-215AA gull-wing allows high-current trace routing on PCB. |
| DC Link Voltage Monitor Reference | Programmable Threshold Detector |
Use Scenario: Scales high-voltage DC bus (e.g., 300–400 V) to microcontroller ADC range via resistor divider with Zener clamp. IC Role / Device Role / Timing Role: Limits divider output to 91 V to prevent ADC overvoltage and provide known reference point. Use Value: 91 V Zener voltage sets safe upper bound; 0.5 µA leakage at 73 V avoids loading error in high-impedance dividers. |
Use Scenario: Sets trip point for comparator-based undervoltage lockout (UVLO) in battery-powered equipment. IC Role / Device Role / Timing Role: Provides stable 91 V reference to LM393 comparator non-inverting input. Use Value: ±2% tolerance yields predictable 89.2–92.8 V threshold; low ZZT ensures fast response to voltage excursions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5377B | Axial-leaded T-18 package; identical VZ, IZT, and IZM; no RoHS suffix | Requires through-hole assembly; not suitable for high-density SMT layouts | Select when retrofitting legacy boards or where manual repair access is prioritized over density |
| SMBJ5377B | DO-214AA (J-bend) package; same electrical specs but higher RθJA (100 °C/W vs. 90 °C/W) | Lower thermal performance on identical PCB; may require larger copper pour for same power dissipation | Select when existing footprint uses DO-214AA or when gull-wing inspection is not required |
Compared with SMBG5377CE3/TR13, 1N5377B offers identical regulation but mandates through-hole assembly, while SMBJ5377B matches SMT placement but sacrifices 10% thermal efficiency-making SMBG5377CE3/TR13 optimal for new high-density, RoHS-compliant designs needing visible solder joints and best-in-class thermal resistance.
Availability
SMBG5377CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial I/O protection, and DC link monitoring requiring stable component supply with RoHS compliance and JEDEC interchangeability.
Supply support for SMBG5377CE3/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 SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-surge environments-emphasizing JEDEC compatibility, moisture resilience, and visual solder joint inspection.
FAQ
What is the Zener voltage tolerance of SMBG5377CE3/TR13?
The SMBG5377CE3/TR13 has a ±2% Zener voltage tolerance, indicated by the "C" suffix in the part number. This means its measured VZ falls between 89.2 V and 92.8 V at 15 mA test current and 25 °C junction temperature, enabling precise voltage references in feedback and protection circuits.
Is SMBG5377CE3/TR13 RoHS compliant?
Yes, SMBG5377CE3/TR13 is RoHS compliant, as confirmed by the "e3" suffix in the part number. It features annealed matte-tin plating and meets EU Directive 2011/65/EU requirements, with no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits.
What is the maximum surge current rating for SMBG5377CE3/TR13?
The SMBG5377CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 760 A, defined as an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without parametric shift or catastrophic failure in overvoltage protection applications.
How does the DO-215AA package of SMBG5377CE3/TR13 differ from DO-214AA?
The DO-215AA package of SMBG5377CE3/TR13 uses gull-wing leads for visible solder joints and lower thermal resistance (90 °C/W), whereas DO-214AA uses J-bend leads with higher thermal resistance (100 °C/W). Both are surface-mount, but DO-215AA supports AOI and better thermal performance on identical PCBs.
Can SMBG5377CE3/TR13 replace 1N5377B in existing designs?
Yes, SMBG5377CE3/TR13 is electrically equivalent to 1N5377B per Microsemi documentation and shares identical VZ, IZT, IZM, and dynamic impedance. However, it requires a DO-215AA footprint-not a direct mechanical replacement-so board redesign or adapter layout is needed for SMT implementation.
SMBG5377CE3/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)
SMBG5377CE3/TR13 FAQ
1.How can I place an order for SMBG5377CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5377CE3/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 SMBG5377CE3/TR13 reliable?
The price and inventory of SMBG5377CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5377CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5377CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5377CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5377CE3/TR13?
SMBG5377CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5377CE3/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 SMBG5377CE3/TR13?
For technical support, including SMBG5377CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5377CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5377CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5377CE3/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 SMBG5377CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5377CE3/TR13?
All SMBG5377CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5377CE3/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 SMBG5377CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5377CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5377CE3/TR13 Tags
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