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Microchip Technology SMBG5387AE3/TR13
- Part No.:
- SMBG5387AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5387AE3/TR13.pdf
- Description:
- DIODE ZENER 190V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,649
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Product details
Overview
SMBG5387AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal breakdown voltage of 190 V, ±10% tolerance (A suffix), rated for 5.0 W at lead temperature <25 °C, and packaged in DO-215AA gull-wing configuration. It regulates voltage across wide current and temperature ranges and is used in overvoltage protection and reference circuits in industrial power supplies.
For engineers reviewing the SMBG5387AE3/TR13 datasheet, SMBG5387AE3/TR13 pinout, SMBG5387AE3/TR13 application, or SMBG5387AE3/TR13 equivalent, key selection criteria include its 190 V Zener voltage, 5 W power rating at TL < 25 °C, ±10% tolerance, DO-215AA package, and RoHS-compliant matte-tin plating.
Technical Context
This device operates as a voltage-reference and overvoltage-clamping element in DC power rails, leveraging sharp Zener breakdown at 190 V with dynamic impedance of 450 Ω at IZT = 5.0 mA. Its thermal resistance junction-to-lead is 25 °C/W, enabling stable regulation under sustained 5.0 W dissipation when lead temperature remains below 25 °C.
The SMBG5387AE3/TR13 exhibits ≤0.5 µA reverse leakage at VR = 144 V, supports surge currents up to 1850 A (8.3 ms half-sine), and maintains moisture sensitivity level 1 per J-STD-020B-no dry pack required. Cathode polarity is marked by a band; operation requires cathode-positive biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 190 V at IZT = 5.0 mA - precise DC reference or clamping threshold for 190 V rail protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires heatsinking or low ambient to sustain full rating |
| Voltage Tolerance | ±10% (A suffix) - allows 171–209 V operating window; impacts accuracy in precision references |
| Dynamic Impedance (ZZT) | 450 Ω at IZT = 5.0 mA - determines output voltage variation under load current changes |
| Max Reverse Leakage (IR) | 0.5 µA at VR = 144 V - ensures minimal standby power loss in high-impedance bias networks |
| Surge Current (IZSM) | 1850 A (8.3 ms half-sine) - withstands transient overvoltages without failure in surge protection stages |
| Junction Temp Range | −65 to +150 °C - supports operation in extended industrial and automotive under-hood environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with two terminals: anode and cathode. Cathode identified by molded band; device operated with banded end positive relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; reference node for reverse-bias operation | Connected to lower-potential side of protected circuit; defines ground or return path in clamp topology |
| Cathode | Current exit terminal during forward conduction; Zener breakdown terminal in reverse bias | Banded end; connected to higher-potential rail (e.g., 190 V input); clamps excess voltage to VZ |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5387B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs certified to 1N5387B |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish compliant with IPC/JEDEC J-STD-020B Level 1 - no dry pack needed pre-reflow |
| Gull-wing leads (DO-215AA) | Visible solder joints enable AOI inspection and improve reworkability vs. J-bend or axial packages |
| High surge current rating | 1850 A non-repetitive peak (8.3 ms) - provides robust transient immunity in AC/DC front-end protection |
| Low thermal resistance | RθJL = 25 °C/W - enables efficient heat transfer to PCB copper, critical for sustained 5 W operation |
Applications
| Industrial Power Supply Protection | DC Bus Overvoltage Clamp |
|---|---|
Use Scenario: Protects switching regulator feedback networks and MOSFET gate drivers from 190 V bus transients in 3-phase rectified supplies. IC Role / Device Role / Timing Role: Zener clamping diode placed between DC bus and ground, conducting only above 190 V to shunt surge energy. Use Value: Prevents damage to downstream ICs rated for ≤200 V absolute maximum by limiting excursion to 190 V ±10%. |
Use Scenario: Installed across high-voltage DC link capacitors in motor drives to suppress regenerative spikes during braking. IC Role / Device Role / Timing Role: Passive voltage clamp activated during >190 V overvoltage events; absorbs energy via controlled Zener conduction. Use Value: Eliminates need for active crowbar circuits while maintaining fast response (<100 ns) and handling 1850 A surges. |
| Programmable Reference Source | ESD-Safe Voltage Monitor |
Use Scenario: Provides stable 190 V reference for high-voltage ADC input scaling or comparator thresholds in battery management systems. IC Role / Device Role / Timing Role: Precision Zener reference in resistive divider network feeding analog front-end inputs. Use Value: Delivers ±10% initial accuracy and <0.5 µA leakage at 144 V, minimizing divider error and bias current loading. |
Use Scenario: Monitors HV rail integrity in telecom line cards where ESD immunity is mandated per MIL-STD-750 Method 1020. IC Role / Device Role / Timing Role: Standby monitoring diode biased near but below VZ; detects open-circuit or overvoltage faults. Use Value: Non-sensitive to ESD per MIL-STD-750 Method 1020 - avoids false triggers or degradation in harsh electrostatic environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5387B | Same Zener voltage (190 V), ±5% tolerance (B suffix), identical electrical specs per JEDEC - no RoHS compliance | Used in legacy military/aerospace designs requiring Sn/Pb plating and MIL-STD-750 qualification | Select 1N5387B only if RoHS exemption applies and Sn/Pb finish is mandatory; otherwise SMBG5387AE3/TR13 preferred |
| SMBG5387BE3/TR13 | Same package and VZ, but ±5% tolerance (B suffix) and 380 Ω ZZT - tighter voltage control, lower impedance | Preferred in precision reference circuits where 171–209 V window is insufficient and 180.5–199.5 V range is required | Choose SMBG5387BE3/TR13 when voltage accuracy outweighs cost; SMBG5387AE3/TR13 suits general-purpose clamping |
Compared with 1N5387B and SMBG5387BE3/TR13, SMBG5387AE3/TR13 offers RoHS compliance and broader voltage tolerance ideal for cost-sensitive industrial clamping, whereas the B-suffix variant trades tolerance for precision and the legacy 1N5387B lacks environmental compliance.
Availability
SMBG5387AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, DC bus overvoltage clamping, and programmable reference source applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMBG5387AE3/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 5 W Zener regulation in space-constrained, high-surge industrial power systems - emphasizing visible gull-wing leads, Level 1 moisture resistance, and JEDEC compatibility.
FAQ
What is the Zener voltage and tolerance of SMBG5387AE3/TR13?
The SMBG5387AE3/TR13 has a nominal Zener voltage of 190 V measured at 5.0 mA test current (IZT), with a ±10% tolerance indicated by the "A" suffix. This means its actual breakdown voltage falls between 171 V and 209 V at 25 °C, making it suitable for applications where moderate voltage accuracy is acceptable, such as general-purpose overvoltage clamping.
What package type and mounting style does SMBG5387AE3/TR13 use?
SMBG5387AE3/TR13 uses the DO-215AA surface-mount package with gull-wing leads. It is designed for reflow soldering on FR4 PCBs using the recommended pad layout (0.320″ × 0.085″), and features visible solder joints for automated optical inspection. The "TR13" suffix indicates tape-and-reel packaging with 12 mm carrier tape.
How much power can SMBG5387AE3/TR13 dissipate continuously?
SMBG5387AE3/TR13 is rated for 5.0 W continuous power dissipation only when the lead temperature (TL) is maintained below 25 °C. At ambient temperature (TA) = 25 °C on a standard FR4 board, its usable power drops to 1.38 W due to higher thermal resistance junction-to-ambient (90 °C/W). Effective heatsinking or forced cooling is required to approach full 5 W capability.
Is SMBG5387AE3/TR13 RoHS compliant?
Yes, SMBG5387AE3/TR13 is RoHS compliant, as confirmed by the "e3" suffix in its part number. It uses annealed matte-tin plating instead of Sn/Pb, meeting IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - eliminating the need for dry packing prior to reflow soldering.
What is the maximum surge current rating for SMBG5387AE3/TR13?
SMBG5387AE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 1850 A, defined as a single 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy in surge protection applications such as AC line input stages or motor drive DC bus clamping without catastrophic failure.
SMBG5387AE3/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:
- ±10%
- 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)
SMBG5387AE3/TR13 FAQ
1.How can I place an order for SMBG5387AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5387AE3/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 SMBG5387AE3/TR13 reliable?
The price and inventory of SMBG5387AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5387AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5387AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5387AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5387AE3/TR13?
SMBG5387AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5387AE3/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 SMBG5387AE3/TR13?
For technical support, including SMBG5387AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5387AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5387AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5387AE3/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 SMBG5387AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5387AE3/TR13?
All SMBG5387AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5387AE3/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 SMBG5387AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5387AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5387AE3/TR13 Tags
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MM5Z5V1ST1G
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