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Microchip Technology SMBG5387BE3/TR13
- Part No.:
- SMBG5387BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5387BE3/TR13.pdf
- Description:
- DIODE ZENER 190V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,383
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Product details
Overview
SMBG5387BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 190 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges and withstands high surge stresses in power supply protection circuits.
For engineers reviewing the SMBG5387BE3/TR13 datasheet, SMBG5387BE3/TR13 pinout, SMBG5387BE3/TR13 application, or SMBG5387BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (1850 A), thermal resistance (RθJA = 90 °C/W), and moisture sensitivity level (MSL 1).
Technical Context
This device operates as a precision voltage reference and overvoltage clamp in DC power rails. Its 190 V Zener voltage is specified at IZT = 5.0 mA, with dynamic impedance ZZT = 450 Ω and maximum regulator current IZM = 25 mA under TL < 25 °C conditions.
The SMBG5387BE3/TR13 features low leakage (IR ≤ 0.5 µA at VR = 137 V), stable regulation across -65 to +150 °C junction temperature, and robust surge capability (non-repetitive 8.3 ms half-sine IZSM = 1850 A) per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 190 V ±5% at IZT = 5.0 mA - defines clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management on PCB for sustained operation |
| Dynamic Impedance (ZZT) | 450 Ω at IZT = 5.0 mA - determines regulation stiffness under varying load current |
| Max Surge Current (IZSM) | 1850 A (8.3 ms half-sine) - enables transient suppression in AC/DC front-end stages |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 board - dictates minimum copper area needed for thermal relief |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 137 V - ensures minimal standby power loss in high-impedance bias networks |
| Junction Temp Range | -65 to +150 °C - supports industrial and automotive under-hood applications |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode - no internal circuitry or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal during forward conduction | Connected to lower-potential node in reverse-biased Zener operation |
| Cathode | Current source terminal during Zener breakdown | Banded end; connected to higher-potential rail for voltage regulation/clamping |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5387B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies SMT handling and eliminates bake-out step |
| Gull-wing lead form | Visible solder joints - supports automated optical inspection (AOI) and rework accessibility |
| RoHS-compliant matte-tin plating | Lead-free assembly compatible - meets IPC-J-STD-020B and environmental compliance requirements |
| High surge current rating | 1850 A non-repetitive peak - protects downstream circuitry against lightning-induced transients |
Applications
| Industrial Power Supply Protection | Telecom Line Card Clamp |
|---|---|
Use Scenario: Clamping induced surges on 48 V DC distribution buses in PLC cabinets exposed to switching transients. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp voltage spikes above 190 V. Use Value: Prevents damage to isolated DC-DC converters and microcontrollers by limiting bus overvoltage to safe levels. |
Use Scenario: Overvoltage protection on analog line interface circuits in VoIP gateways subjected to tip-ring transients. IC Role / Device Role / Timing Role: Standby shunt regulator that activates only during fault conditions exceeding 137 V reverse threshold. Use Value: Maintains signal integrity during normal operation while absorbing >1 kV fast transients without degradation. |
| Renewable Energy Inverter DC Bus | Test Equipment High-Voltage Reference |
Use Scenario: Snubber network component in solar inverter DC link where bus voltage reaches 600–800 V with transient overshoot. IC Role / Device Role / Timing Role: Secondary clamping element triggered after primary MOVs to limit residual overshoot to ≤190 V. Use Value: Extends lifetime of IGBT gate drivers by reducing repetitive stress from sub-microsecond transients. |
Use Scenario: Precision voltage reference in portable HV calibration sources requiring stable 190 V output with low tempco. IC Role / Device Role / Timing Role: Temperature-compensated Zener used in feedback loop of high-voltage linear regulator. Use Value: Delivers ±0.05%/°C stability over -25 to +75 °C due to matched thermal coefficient design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5387B | Same Zener voltage (190 V), ±5%, but axial T-18 package - no surface-mount compatibility | Requires through-hole assembly; unsuitable for high-density PCB layouts | Select when legacy through-hole manufacturing or manual prototyping is required |
| SMBJ5387B | Same electrical specs but DO-214AA J-bend package - different footprint and thermal path (RθJA = 80 °C/W) | Higher thermal performance on same board area; slightly reduced surge margin (1750 A vs. 1850 A) | Prefer for new SMT designs needing improved thermal dissipation and AOI-compatible leads |
Compared with SMBG5387BE3/TR13, 1N5387B requires board redesign for through-hole mounting, while SMBJ5387B offers better thermal resistance but lower surge rating - both serve as functional alternatives when package constraints permit.
Availability
SMBG5387BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line card clamp, and renewable energy inverter DC bus applications requiring stable component supply and full traceability.
Supply support for SMBG5387BE3/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 specifically for ruggedized surface-mount voltage regulation and transient suppression in harsh-environment power systems where MSL-1 handling and surge survivability are critical.
FAQ
What is the Zener voltage tolerance of SMBG5387BE3/TR13?
The SMBG5387BE3/TR13 has a ±5% Zener voltage tolerance, indicated by the "B" suffix in its part number. This means its breakdown voltage is guaranteed between 180.5 V and 199.5 V at the specified test current of 5.0 mA and junction temperature of 25 °C, per Microsemi's T4-LDS-0246-1 datasheet.
Does SMBG5387BE3/TR13 require dry packing before SMT assembly?
No, SMBG5387BE3/TR13 does not require dry packing. It carries Moisture Sensitivity Level 1 (MSL 1) per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking - a key advantage for high-volume manufacturing.
What is the maximum surge current rating for SMBG5387BE3/TR13?
The SMBG5387BE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 1850 A, defined as an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the official Microsemi datasheet T4-LDS-0246-1.
How does the DO-215AA package of SMBG5387BE3/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5387BE3/TR13 provides visible solder joints for AOI and rework, whereas DO-214AA uses J-bend leads. Thermal resistance differs: RθJA = 90 °C/W for DO-215AA vs. 80 °C/W for DO-214AA - making SMBJ5387B slightly more thermally efficient on identical PCBs.
Is SMBG5387BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5387BE3/TR13 features RoHS-compliant matte-tin plating (e3 suffix) and is qualified for lead-free reflow up to 260 °C for 10 seconds, as stated in the Maximum Ratings table. Its void-free epoxy body meets UL94V-0 flammability requirements for safety-critical applications.
SMBG5387BE3/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):
- 190 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 450 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 137 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)
SMBG5387BE3/TR13 FAQ
1.How can I place an order for SMBG5387BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5387BE3/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 SMBG5387BE3/TR13 reliable?
The price and inventory of SMBG5387BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5387BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5387BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5387BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5387BE3/TR13?
SMBG5387BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5387BE3/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 SMBG5387BE3/TR13?
For technical support, including SMBG5387BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5387BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5387BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5387BE3/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 SMBG5387BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5387BE3/TR13?
All SMBG5387BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5387BE3/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 SMBG5387BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5387BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5387BE3/TR13 Tags
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