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Microchip Technology SMBG5387C/TR13
- Part No.:
- SMBG5387C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5387C/TR13.pdf
- Description:
- DIODE ZENER 190V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,106
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Product details
Overview
SMBG5387C/TR13 from Microsemi is a surface-mount 5 W Zener diode with a nominal Zener voltage of 190 V, ±2% tolerance (C suffix), 5.0 µA maximum reverse leakage at 137 V, and 1.5 A maximum surge current for 8.3 ms half-sine waveform. It operates from –65 °C to +150 °C and is used for precision voltage regulation in industrial power supply feedback loops.
For engineers reviewing the SMBG5387C/TR13 datasheet, SMBG5387C/TR13 pinout, SMBG5387C/TR13 application, or SMBG5387C/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating, thermal resistance (25 °C/W junction-to-lead), DO-215AA gull-wing package compatibility, and RoHS-compliant matte-tin plating.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown, with dynamic impedance of 450 Ω measured at 10% AC modulation superimposed on 5 mA test current. Its Zener voltage is specified at TL = 25 °C with measurement delay of 40 ±10 ms after DC current application.
The SMBG5387C/TR13 uses a void-free UL94V-0 thermosetting epoxy case, cathode indicated by band, and is rated for 260 °C solder temperature (10 s). It achieves IPC/JEDEC J-STD-020B moisture sensitivity level 1, eliminating dry pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 190 V ±2% at 5 mA - defines precise regulation point for high-voltage feedback networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via lead conduction, not ambient convection |
| Dynamic Impedance (ZZT) | 450 Ω at 5 mA - limits output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤5.0 µA at 137 V - ensures minimal standby power loss in high-impedance bias circuits |
| Surge Current (IZSM) | 1.5 A (8.3 ms half-sine) - withstands transient overvoltage events without degradation |
| Junction-to-Lead Thermal Resistance | 25 °C/W - enables direct PCB copper pour heat sinking to internal lead frame |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - zero floor life limitation; no baking required before reflow |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only - no internal circuitry or control pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or low-side return path in shunt regulator configuration |
| Cathode | Regulated output node | Banded end; connects to feedback node of switching controller or voltage monitor input |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5387B equivalent | Identical electrical specs and test methods to legacy through-hole 1N5387B - enables drop-in replacement in upgraded layouts |
| Gull-wing lead form | Visible solder joints for automated optical inspection (AOI) and rework accessibility on FR4 boards |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-006B solderability requirements without Pb-based flux activation |
| High surge current capability | 1.5 A non-repetitive surge rating supports IEC 61000-4-5 Level 3 line transient immunity without external clamping |
| Level 1 moisture sensitivity | Zero dry-pack requirement reduces handling cost and eliminates bake step in SMT line |
Applications
| Industrial Power Supply Feedback | Telecom Line Card Protection |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback or forward converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 190 V reference to optocoupler LED drive circuit. Use Value: ±2% tolerance ensures tight output voltage regulation across line/load/temperature; 5 W rating sustains continuous dissipation during overload conditions. |
Use Scenario: Clamps induced surges on -48 V DC distribution bus in central office line cards. IC Role / Device Role / Timing Role: Standby overvoltage protector absorbing lightning-induced transients before they reach downstream regulators. Use Value: 1.5 A surge rating handles 8.3 ms half-sine transients per IEC 61000-4-5; DO-215AA gull-wing allows high-current trace routing without thermal stress. |
| Test Equipment High-Voltage Reference | Medical Imaging Power Monitoring |
Use Scenario: Provides calibrated reference for digital multimeter high-voltage ranges up to 200 V DC. IC Role / Device Role / Timing Role: Precision Zener element in resistive divider network feeding ADC reference input. Use Value: Low dynamic impedance (450 Ω) minimizes loading error on divider; ±2% tolerance enables Class 0.5 meter accuracy without trimming. |
Use Scenario: Monitors X-ray generator DC bus voltage stability during pulse operation. IC Role / Device Role / Timing Role: Overvoltage detection node feeding comparator input in safety interlock chain. Use Value: 190 V Zener threshold aligns with 110% overvoltage trip point; Level 1 moisture rating ensures reliability in sealed, humidity-controlled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5387B | Through-hole DO-41 package; identical VZ, IZM, and ZZT; no RoHS option | Requires axial-leaded footprint and wave soldering; unsuitable for high-density SMT designs | Select when legacy board repair or mixed-technology assembly is required |
| SMBJ5387C | Same Zener voltage and tolerance, but DO-214AA J-bend package; RθJA = 100 °C/W vs. 90 °C/W for SMBG | Lower thermal performance in still-air environments; less suitable for sustained 5 W operation without heatsinking | Select when existing DO-214AA footprint must be retained and peak power is intermittent |
Compared with SMBG5387C/TR13, 1N5387B offers identical regulation performance but lacks SMT compatibility and RoHS compliance, while SMBJ5387C trades thermal efficiency for footprint compatibility - making SMBG5387C/TR13 optimal for new high-reliability SMT designs requiring full 5 W continuous dissipation.
Availability
SMBG5387C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom line protection, and medical imaging equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for SMBG5387C/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 SMBG53xx series was designed specifically for surface-mount voltage regulation in space-constrained, high-surge industrial power systems - emphasizing thermal robustness, JEDEC compatibility, and moisture-insensitive packaging.
FAQ
What is the Zener voltage tolerance for SMBG5387C/TR13?
The "C" suffix in SMBG5387C/TR13 specifies a ±2% Zener voltage tolerance at 5 mA test current. This is tighter than the ±5% (B suffix) or ±10% (A suffix) options in the same family, enabling higher-accuracy regulation in feedback and reference circuits where drift must be minimized across temperature and aging.
Can SMBG5387C/TR13 replace 1N5387B in existing designs?
Yes, SMBG5387C/TR13 is electrically equivalent to 1N5387B per Microsemi documentation, with identical Zener voltage, dynamic impedance, and surge ratings. However, the DO-215AA gull-wing package requires PCB footprint revision - it is not a drop-in replacement unless the layout is updated for surface-mount geometry and thermal pad design.
What is the maximum continuous power dissipation for SMBG5387C/TR13?
SMBG5387C/TR13 delivers 5.0 W continuous power dissipation only when lead temperature (TL) is maintained below 25 °C, typically achieved via copper pour thermal vias and thick traces. At 25 °C ambient on FR4, derated power drops to 1.38 W due to higher junction-to-ambient thermal resistance (90 °C/W).
Is SMBG5387C/TR13 RoHS compliant?
Yes, SMBG5387C/TR13 uses RoHS-compliant annealed matte-tin plating per MIL-STD-750 Method 2026, confirmed by the "e3" marking variant (e.g., SMBG5387Ce3) and compliance statements in Microsemi's T4-LDS-0246-1 datasheet. No lead or cadmium is present in terminal finish or mold compound.
What does the "TR13" suffix indicate in SMBG5387C/TR13?
The "TR13" suffix denotes tape-and-reel packaging per EIA-481-1-A standard using 12 mm carrier tape, with 1,000 units per reel. This format is optimized for automated pick-and-place assembly and ensures consistent orientation (cathode band facing designated direction) during SMT placement.
SMBG5387C/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)
SMBG5387C/TR13 FAQ
1.How can I place an order for SMBG5387C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5387C/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 SMBG5387C/TR13 reliable?
The price and inventory of SMBG5387C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5387C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5387C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5387C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5387C/TR13?
SMBG5387C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5387C/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 SMBG5387C/TR13?
For technical support, including SMBG5387C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5387C/TR13 requirements.
6.How does Aetrix verify that SMBG5387C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5387C/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 SMBG5387C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5387C/TR13?
All SMBG5387C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5387C/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 SMBG5387C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5387C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5387C/TR13 Tags
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