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Microchip Technology SMBG5388C/TR13
- Part No.:
- SMBG5388C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5388C/TR13.pdf
- Description:
- DIODE ZENER 200V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,258
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Product details
Overview
SMBG5388C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 200 V, ±2% tolerance (C suffix), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 1850 A (8.3 ms half-sine), and operates from –65 °C to +150 °C. Used in industrial power supply overvoltage clamping and DC bus protection circuits.
For engineers reviewing the SMBG5388C/TR13 datasheet, SMBG5388C/TR13 pinout, SMBG5388C/TR13 application, or SMBG5388C/TR13 equivalent, key selection criteria include verified Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), maximum surge current rating, RoHS-compliant matte-tin plating, and JEDEC 1N5388B equivalence for legacy design migration.
Technical Context
This device functions as a precision voltage reference and transient suppressor in DC power rails. Its breakdown behavior is characterized at IZT = 5.0 mA with VZ = 200 V ±2%, dynamic impedance ZZT = 480 Ω, and knee impedance ZZK ≤ 23.6 Ω at 1.0 mA.
Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4). It withstands solder reflow at 260 °C for 10 s and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V ±2% at IZT = 5.0 mA - ensures stable regulation within tight tolerance for precision reference applications. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - defines maximum continuous power handling with adequate lead heat sinking. |
| Max Surge Current (IZSM) | 1850 A (8.3 ms half-sine) - enables robust transient suppression in high-energy surge events. |
| Dynamic Impedance (ZZT) | 480 Ω at IZT = 5.0 mA - quantifies voltage stability under small-signal AC modulation near regulation point. |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in harsh industrial and automotive under-hood environments. |
| Thermal Resistance (RθJL) | 25 °C/W - indicates efficient heat transfer from junction to PCB lead, critical for reliability in high-power pulse duty cycles. |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 144 V - confirms low off-state conduction for minimal standby power loss. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking. Cathode terminal is the banded end; device operates with cathode positive relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during reverse bias | Connected to lower-potential node (e.g., ground or return rail) in clamp configuration. |
| Cathode | Current source during reverse bias | Connected to protected node (e.g., DC bus); band identifies this terminal for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5388B equivalence | Identical electrical characteristics and test methods - enables drop-in replacement in legacy through-hole designs using adapter footprints. |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC J-STD-006 and EU RoHS Directive - eliminates lead while maintaining solderability per MIL-STD-750 Method 2026. |
| Level 1 moisture sensitivity | No dry pack required per J-STD-020B - reduces handling cost and simplifies SMT line logistics. |
| Gull-wing lead form | Visible solder joints on DO-215AA - enables automated optical inspection (AOI) and improves process yield in high-density layouts. |
Applications
| Industrial Power Supply Clamping | DC Bus Overvoltage Protection |
|---|---|
Use Scenario: Clamp transient spikes on 150–200 V DC bus lines in motor drives and PLC power modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt excess energy to ground. Use Value: 1850 A surge rating and 200 V ±2% regulation ensure reliable protection without derating at elevated ambient temperatures. |
Use Scenario: Stabilize reference voltage for feedback circuitry in isolated DC-DC converters rated ≥180 V output. IC Role / Device Role / Timing Role: Precision voltage reference providing stable bias for error amplifiers and optocoupler drivers. Use Value: Low dynamic impedance (480 Ω) and tight 2% tolerance maintain loop accuracy across load and temperature variations. |
| Automotive Battery Monitoring | Telecom Line Card Surge Suppression |
Use Scenario: Protect microcontroller ADC inputs monitoring 24 V battery systems subjected to load-dump transients. IC Role / Device Role / Timing Role: Front-end transient voltage suppressor limiting input to safe levels before signal conditioning. Use Value: –65 °C to +150 °C operating range and non-ESD-sensitive construction meet AEC-Q101 requirements for under-hood use. |
Use Scenario: Absorb lightning-induced surges on 48 V telecom power feeds in central office equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp in multi-stage protection architecture. Use Value: High IZSM (1850 A) and low leakage (≤0.5 µA) ensure fail-safe operation without false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5388B | Through-hole axial T-18 package; identical VZ, IZM, and IZSM specs; Sn/Pb plating standard. | Requires PCB through-hole mounting and wave soldering; not suitable for high-density SMT layouts. | Select when retrofitting legacy boards or where manual assembly and thermal mass of axial leads are advantageous. |
| SMBJ5388C | DO-214AA (J-bend) package; same VZ, tolerance, and power rating; RθJA = 100 °C/W (vs. 90 °C/W for SMBG). | Lower thermal efficiency on FR4; requires larger copper area for equivalent power dissipation. | Select when existing footprint uses DO-214AA or when gull-wing inspection capability is not required. |
Compared with SMBG5388C/TR13, 1N5388B offers identical regulation but demands through-hole assembly, while SMBJ5388C provides SMT compatibility at the cost of reduced thermal performance-making SMBG5388C/TR13 optimal for space-constrained, thermally demanding SMT applications requiring visible solder joint verification.
Availability
SMBG5388C/TR13 is available at Aetrix Electronics and suitable for industrial power supply clamping, DC bus overvoltage protection, and automotive battery monitoring requiring stable component supply and full traceability.
Supply support for SMBG5388C/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 ICs, discrete components, and RF solutions.
The SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in industrial, telecom, and automotive power systems where precision, surge robustness, and RoHS compliance are mandatory.
FAQ
What is the Zener voltage tolerance for SMBG5388C/TR13?
The "C" suffix in SMBG5388C/TR13 denotes a ±2% Zener voltage tolerance at IZT = 5.0 mA. This is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0246-1 datasheet, where VZ = 200 V with tolerance explicitly labeled as C = ±2%. Tighter tolerance improves regulation accuracy in precision reference and feedback applications.
Is SMBG5388C/TR13 RoHS compliant?
Yes, SMBG5388C/TR13 is RoHS compliant. The "e3" designation is implied by the "C" suffix per Microsemi's nomenclature block (page 2), and the datasheet states RoHS-compliant matte-tin plating is used for all SMBG53xx devices with "C" tolerance. This satisfies EU RoHS Directive 2011/65/EU and IPC/JEDEC J-STD-006 requirements.
What is the maximum surge current rating for SMBG5388C/TR13?
SMBG5388C/TR13 has a maximum non-repetitive peak surge current (IZSM) of 1850 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table (page 3). This value is measured under standardized conditions and reflects its capability to absorb high-energy transients without failure.
How does SMBG5388C/TR13 compare to 1N5388B?
SMBG5388C/TR13 is the surface-mount DO-215AA gull-wing equivalent of the through-hole 1N5388B, with identical Zener voltage (200 V), tolerance (±2%), power rating (5 W), and surge current (1850 A). The primary difference is package geometry and assembly method-SMBG5388C/TR13 enables automated SMT placement and AOI, while 1N5388B requires through-hole insertion and wave soldering.
What is the thermal resistance junction-to-lead for SMBG5388C/TR13?
The thermal resistance junction-to-lead (RθJL) for SMBG5388C/TR13 is 25 °C/W, as listed in the Maximum Ratings table (page 1). This parameter is critical for estimating junction temperature rise under pulsed operation and confirms efficient heat conduction from the silicon die to the PCB via the gull-wing leads.
SMBG5388C/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):
- 200 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 480 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 144 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)
SMBG5388C/TR13 FAQ
1.How can I place an order for SMBG5388C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5388C/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 SMBG5388C/TR13 reliable?
The price and inventory of SMBG5388C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5388C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5388C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5388C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5388C/TR13?
SMBG5388C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5388C/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 SMBG5388C/TR13?
For technical support, including SMBG5388C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5388C/TR13 requirements.
6.How does Aetrix verify that SMBG5388C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5388C/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 SMBG5388C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5388C/TR13?
All SMBG5388C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5388C/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 SMBG5388C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5388C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5388C/TR13 Tags
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