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Microchip Technology SMBG5388BE3/TR13
- Part No.:
- SMBG5388BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5388BE3/TR13.pdf
- Description:
- DIODE ZENER 200V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,056
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Product details
Overview
SMBG5388BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 200 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 (-65 °C to +150 °C), supports 5.0 W dissipation at lead temperature <25 °C, and delivers 1.52 A maximum Zener current (IZM) with 480 Ω dynamic impedance at 5 mA test current - used in industrial power supply overvoltage clamping.
For engineers reviewing the SMBG5388BE3/TR13 datasheet, SMBG5388BE3/TR13 pinout, SMBG5388BE3/TR13 application, or SMBG5388BE3/TR13 equivalent, key selection criteria include verified 200 V Zener voltage at 5 mA, 1.52 A IZM rating under thermal derating constraints, DO-215AA mechanical compatibility, and RoHS-compliant solderability per MIL-STD-750 method 2026.
Technical Context
This device operates as a precision voltage reference and transient suppressor in DC power rails, leveraging sharp Zener breakdown at 200 V with low dynamic impedance (480 Ω at 5 mA) and minimal voltage drift versus current. Its DO-215AA gull-wing leads enable visible solder joints and meet IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
Rated for 5.0 W at TL <25 °C (1.38 W at TA = 25 °C on FR4), it withstands non-repetitive 8.3 ms half-sine surge currents up to 1850 A and exhibits ≤0.5 µA reverse leakage at VR = 144 V - critical for high-voltage hold-off integrity in telecom and industrial SMPS feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 200 V at IZT = 5 mA - stable regulation point for high-voltage reference or clamp circuits |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via PCB copper pour or heatsink attachment |
| Max Regulator Current (IZM) | 1.52 A - defines absolute DC current limit before thermal runaway under rated conditions |
| Dynamic Impedance (ZZT) | 480 Ω at 5 mA - quantifies voltage stability under small-signal AC modulation in feedback loops |
| 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) - enables single-event transient suppression without degradation |
| Junction Temp Range | -65 °C to +150 °C - supports operation in extended-temperature industrial and automotive environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only - no internal circuitry or additional pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal during Zener conduction | Connected to regulated rail or clamped node; polarity must be observed to avoid forward conduction |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or lower-potential node; completes Zener bias path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5388B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | Solderable per MIL-STD-750 method 2026 - eliminates Pb-based assembly concerns while maintaining wetting reliability |
| Level 1 moisture sensitivity | No dry pack required - reduces handling cost and simplifies SMT line logistics |
| Gull-wing lead form | Visible solder fillets on FR4 - enables automated optical inspection (AOI) of joint integrity |
| High surge current rating | 1850 A peak (8.3 ms) - protects downstream circuitry from lightning-induced or inductive-switching transients |
Applications
| Industrial Power Supply Clamp | Telecom Line Card Protection |
|---|---|
Use Scenario: Clamping flyback transformer leakage spikes in 48 V telecom rectifiers. IC Role / Device Role / Timing Role: Passive voltage clamp absorbing energy during MOSFET turn-off. Use Value: Prevents >250 V transients from exceeding MOSFET VDS rating using 200 V Zener threshold and 1850 A surge capacity. |
Use Scenario: Overvoltage protection on -48 V DC distribution bus feeding line cards. IC Role / Device Role / Timing Role: Standby shunt regulator holding bus voltage within safe limits during load dump events. Use Value: Maintains <±1% regulation over -40 °C to +85 °C ambient with ≤0.5 µA IR at 144 V hold-off. |
| Laser Diode Bias Control | High-Voltage Sensor Reference |
Use Scenario: Stabilizing bias voltage for fiber-optic transmitter laser diodes requiring precise 200 V drive. IC Role / Device Role / Timing Role: Precision DC reference source in constant-current laser driver feedback loop. Use Value: Delivers 200 V ±5% with 480 Ω dynamic impedance, minimizing current ripple induced by supply noise. |
Use Scenario: Providing stable reference for isolated high-voltage battery monitoring in EV charging systems. IC Role / Device Role / Timing Role: Primary voltage reference for resistive divider scaling of 400–800 V DC bus. Use Value: Ensures <0.1% long-term drift due to low IR and tight VZ tolerance, enabling accurate SOC estimation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5388B | Axial-leaded T-18 package; identical VZ, IZM, and ZZT specs but higher RθJA (150 °C/W vs. 90 °C/W). | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts. | Select when legacy through-hole production or manual repair is required; not interchangeable without PCB redesign. |
| SMBJ5388 | DO-214AA J-bend package; same VZ and IZM but 20% higher RθJA (108 °C/W) and 10% lower IZSM (1665 A). | Compatible footprint on some layouts but lacks gull-wing visibility for AOI; reduced surge margin. | Choose only if DO-214AA is standardized in your process and 11% lower surge rating is acceptable. |
Compared with SMBG5388BE3/TR13, 1N5388B demands through-hole rework capability and sacrifices thermal performance, while SMBJ5388 trades AOI-friendly gull-wing leads and surge robustness for minor footprint compatibility - making SMBG5388BE3/TR13 optimal for new SMT designs prioritizing inspectability and transient resilience.
Availability
SMBG5388BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supply clamp, telecom line card protection, and high-voltage sensor reference applications requiring stable component supply, full RoHS compliance, and traceable sourcing.
Supply support for SMBG5388BE3/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.
SMBG5388BE3/TR13 belongs to Microsemi's SMBG-series 5 W Zener diode family, engineered for high-voltage regulation and transient suppression in mission-critical power systems where precision, surge immunity, and long-term stability are mandatory.
FAQ
What is the Zener voltage tolerance of SMBG5388BE3/TR13?
The 'B' suffix in SMBG5388BE3/TR13 denotes ±5% Zener voltage tolerance. At 200 V nominal, this means the actual VZ falls between 190 V and 210 V when measured at 5 mA test current and 25 °C junction temperature. This tolerance is verified per JEDEC 1N5388B test standards and applies across the full operating temperature range.
Does SMBG5388BE3/TR13 require dry packing before SMT assembly?
No, SMBG5388BE3/TR13 has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - meaning it may be stored indefinitely at ≤30 °C/60% RH without dry pack or baking. This eliminates pre-reflow moisture mitigation steps, reducing manufacturing overhead and avoiding thermal stress on the DO-215AA epoxy body.
What is the maximum continuous power dissipation for SMBG5388BE3/TR13 on a standard FR4 PCB?
When mounted on a 1 oz copper FR4 board with Microsemi's recommended pad layout, SMBG5388BE3/TR13 dissipates 1.38 W continuously at 25 °C ambient. This derated value accounts for RθJA = 90 °C/W and ensures junction temperature remains below 150 °C. Full 5.0 W is only sustainable at lead temperature <25 °C, typically requiring external heatsinking.
How does the gull-wing lead form of SMBG5388BE3/TR13 benefit automated optical inspection?
The gull-wing leads of SMBG5388BE3/TR13 provide exposed solder fillets along the entire lead length after reflow, enabling reliable detection of voids, insufficient solder, or bridging by standard AOI systems. Unlike J-bend or flat leads, this geometry yields consistent contrast and edge definition - critical for zero-defect manufacturing in high-reliability power modules.
Can SMBG5388BE3/TR13 replace 1N5388B in existing designs without modification?
SMBG5388BE3/TR13 matches 1N5388B electrically (VZ, IZM, ZZT, IR) and is JEDEC-equivalent, but its DO-215AA gull-wing package is not mechanically compatible. Direct replacement requires PCB redesign to accommodate surface-mount pads and eliminate through-holes - though electrical validation is unnecessary due to identical parametric performance.
SMBG5388BE3/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:
- ±5%
- 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)
SMBG5388BE3/TR13 FAQ
1.How can I place an order for SMBG5388BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5388BE3/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 SMBG5388BE3/TR13 reliable?
The price and inventory of SMBG5388BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5388BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5388BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5388BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5388BE3/TR13?
SMBG5388BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5388BE3/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 SMBG5388BE3/TR13?
For technical support, including SMBG5388BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5388BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5388BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5388BE3/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 SMBG5388BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5388BE3/TR13?
All SMBG5388BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5388BE3/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 SMBG5388BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5388BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5388BE3/TR13 Tags
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MM5Z5V1ST1G
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