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Microchip Technology SMBG5387CE3/TR13
- Part No.:
- SMBG5387CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5387CE3/TR13.pdf
- Description:
- DIODE ZENER 190V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
SMBG5387CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 190 V, ±2% tolerance (C suffix), rated test current of 5.0 mA, maximum dynamic impedance of 450 Ω at IZT, and maximum regulator current of 25 mA - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5387CE3/TR13 datasheet, SMBG5387CE3/TR13 pinout, SMBG5387CE3/TR13 application, or SMBG5387CE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (1850 A), thermal resistance (RθJL = 25 °C/W), RoHS-compliant matte-tin plating, and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable reference voltage across wide current (5–25 mA) and temperature (–65 to +150 °C) ranges. Its low dynamic impedance (450 Ω at 5 mA) ensures minimal voltage variation under load transients.
The SMBG5387CE3/TR13 uses a void-free thermosetting epoxy case (UL94V-0), cathode-indicated band polarity, and is rated for 260 °C soldering (10 s). It meets MIL-STD-750 ESD immunity (Method 1020) and IPC/JEDEC J-STD-020B moisture level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 190 V ±2% at 5 mA - provides precise reference for high-voltage feedback networks |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management on PCB for sustained operation |
| Dynamic Impedance (ZZT) | 450 Ω max at 5 mA - limits output voltage drift during current changes |
| Max Regulator Current (IZM) | 25 mA - defines safe DC operating ceiling before thermal runaway |
| Surge Current (IZSM) | 1850 A (8.3 ms half-sine) - withstands transient overvoltage events without failure |
| Junction Temp Range | –65 to +150 °C - supports industrial and automotive under-hood environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables efficient heat transfer to PCB copper pour or lead frame |
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. Compatible with standard SMT reflow profiles and visible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; reference node in Zener regulation | Connected to lower-potential side of regulated circuit (e.g., ground or return path) |
| Cathode | Current exit point in forward bias; Zener voltage reference node | Connected to higher-potential side (e.g., feedback node of switching regulator) |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5387B equivalence | Identical electrical specs and test methods - simplifies legacy design migration |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish compliant with IPC-J-STD-006 and EU RoHS Directive |
| Gull-wing lead geometry | DO-215AA footprint enables visual solder inspection and reliable reflow wetting |
| Moisture sensitivity level 1 | No dry pack or baking required prior to assembly - reduces manufacturing overhead |
| High surge current rating | 1850 A non-repetitive peak withstand capability - protects downstream circuitry from lightning or inductive kick |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision voltage reference element in secondary-side regulation network. Use Value: ±2% VZ tolerance and 450 Ω ZZT ensure stable 190 V reference under varying load and temperature - minimizing output drift. | Use Scenario: Clamps transient voltage spikes on 120/240 VAC input rails or DC bus lines exceeding safe thresholds. IC Role / Device Role / Timing Role: Passive overvoltage clamp protecting rectifier bridges, capacitors, and control ICs. Use Value: 1850 A surge rating and 190 V standoff enable robust clamping of 8.3 ms line surges without degradation. |
| Industrial Sensor Excitation | High-Voltage Reference Divider |
Use Scenario: Provides stable excitation voltage for piezoresistive pressure sensors or strain gauges requiring >100 V bias. IC Role / Device Role / Timing Role: Fixed-voltage source in ratiometric measurement chains. Use Value: Low dynamic impedance maintains regulation across sensor bridge current variations - improving measurement linearity. | Use Scenario: Forms top leg of high-impedance voltage divider feeding ADC inputs in HV monitoring systems (e.g., battery stack supervision). IC Role / Device Role / Timing Role: Stable reference node enabling accurate ratio-based scaling of multi-kV signals. Use Value: Tight ±2% tolerance and minimal VZ drift vs. current allow predictable division ratios without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5387BRLG | Same 190 V ±2%, but axial T-18 package; RθJA = 120 °C/W vs. 90 °C/W for SMBG | Requires through-hole assembly; unsuitable for high-density SMT layouts | Select when legacy through-hole design or manual repair is prioritized over board space |
| SMBJ5387CE3 | Same electrical specs, but DO-214AA (J-bend) package; RθJL = 30 °C/W vs. 25 °C/W | Lower thermal performance; less visible solder joints than gull-wing | Choose if existing DO-214AA footprint exists and marginal thermal margin is acceptable |
Compared with 1N5387BRLG and SMBJ5387CE3, SMBG5387CE3/TR13 offers superior thermal conduction (RθJL = 25 °C/W), gull-wing solder visibility, and SMT process compatibility - making it optimal for new high-reliability, high-density power designs.
Availability
SMBG5387CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and industrial sensor excitation systems requiring stable component supply, consistent Zener voltage accuracy, and RoHS-compliant manufacturing.
Supply support for SMBG5387CE3/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, thermally demanding power systems - emphasizing JEDEC compatibility, surge resilience, and manufacturability.
FAQ
What is the Zener voltage tolerance and test current for SMBG5387CE3/TR13?
The SMBG5387CE3/TR13 has a Zener voltage of 190 V with ±2% tolerance (denoted by the "C" suffix) and is specified at a test current (IZT) of 5.0 mA. This tight tolerance ensures predictable regulation in precision feedback paths, and the 5 mA test point aligns with typical operating currents in voltage reference applications.
Does SMBG5387CE3/TR13 require dry packing before SMT assembly?
No, SMBG5387CE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it is not moisture-sensitive and does not require dry packing, baking, or special handling prior to reflow soldering - simplifying manufacturing logistics and reducing cost.
What is the maximum surge current rating for SMBG5387CE3/TR13 and its waveform definition?
The SMBG5387CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 1850 A, defined as the maximum value of an 8.3 ms half-sine wave. This rating reflects its ability to absorb transient energy without failure - critical for protecting circuits against lightning-induced surges or inductive switching spikes.
How does the DO-215AA package of SMBG5387CE3/TR13 differ from DO-214AA or T-18 packages?
The DO-215AA gull-wing package of SMBG5387CE3/TR13 provides visible solder joints for optical inspection, lower thermal resistance (RθJL = 25 °C/W), and better coplanarity than J-bend (DO-214AA) or axial (T-18) alternatives - enhancing SMT yield and thermal reliability in high-power density layouts.
Is SMBG5387CE3/TR13 compatible with lead-free reflow processes?
Yes, SMBG5387CE3/TR13 carries the "e3" suffix indicating RoHS-compliant annealed matte-tin plating and is qualified for lead-free reflow up to 260 °C for 10 seconds - meeting JEDEC J-STD-020 requirements and supporting modern Pb-free manufacturing standards.
SMBG5387CE3/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:
- ±2%
- 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)
SMBG5387CE3/TR13 FAQ
1.How can I place an order for SMBG5387CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5387CE3/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 SMBG5387CE3/TR13 reliable?
The price and inventory of SMBG5387CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5387CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5387CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5387CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5387CE3/TR13?
SMBG5387CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5387CE3/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 SMBG5387CE3/TR13?
For technical support, including SMBG5387CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5387CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5387CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5387CE3/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 SMBG5387CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5387CE3/TR13?
All SMBG5387CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5387CE3/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 SMBG5387CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5387CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5387CE3/TR13 Tags
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