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Microchip Technology SMBG5368C/TR13
- Part No.:
- SMBG5368C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5368C/TR13.pdf
- Description:
- DIODE ZENER 47V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,033
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Product details
Overview
SMBG5368C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 47 V, ±2% tolerance (C suffix), 25 Ω dynamic impedance at 25 mA test current, and 2.7 A maximum Zener current under thermal-limited conditions. It regulates voltage in power supply feedback loops and overvoltage protection circuits for industrial DC-DC converters.
For engineers reviewing the SMBG5368C/TR13 datasheet, SMBG5368C/TR13 pinout, SMBG5368C/TR13 application, or SMBG5368C/TR13 equivalent, this page delivers verified electrical parameters, DO-215AA gull-wing package details, JEDEC 1N5368B-compliant performance, and real-world design guidance for voltage reference and clamping use cases.
Technical Context
This device operates as a precision shunt regulator in reverse-biased breakdown mode, maintaining stable 47 V output across 10–200 mA operating current range with minimal voltage drift versus temperature (−65 °C to +150 °C junction). Its 25 Ω dynamic impedance ensures tight regulation under varying load conditions.
The SMBG5368C/TR13 uses a void-free UL94V-0 epoxy package with gull-wing leads, enabling visible solder joints and IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal resistance is 25 °C/W junction-to-lead and 90 °C/W junction-to-ambient on FR4 with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±2% at 25 mA - precise reference for feedback networks requiring tight tolerance |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports high-energy transient suppression without derating |
| Dynamic Impedance (ZZT) | 25 Ω at IZT = 25 mA - low AC impedance enables stable regulation under ripple-loaded conditions |
| Max Reverse Current (IR) | 0.5 µA at VR = 33.8 V - ultra-low leakage preserves accuracy in high-impedance bias networks |
| Surge Current (IZSM) | 210 A (8.3 ms half-sine) - withstands repetitive lightning-induced transients in industrial interfaces |
| Junction Temperature Range | −65 °C to +150 °C - qualified for automotive under-hood and industrial motor drive environments |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct thermal coupling to PCB copper pour for passive heatsinking |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode (unbanded end) and cathode (banded end); polarity must be observed during placement to ensure correct reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal in forward bias; reference node in reverse-bias regulation | Connected to lower-potential rail (e.g., ground or return path) in shunt regulator configuration |
| Cathode | Current source terminal in reverse breakdown; regulated output node | Connected to voltage node requiring stabilization (e.g., feedback divider tap or protected IC input) |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5368B equivalence | Identical electrical specs and test methods-enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-020B Level 1 moisture sensitivity-no baking or dry pack required before reflow |
| Gull-wing lead geometry | Enables visual post-reflow solder joint inspection and reduces tombstoning risk on fine-pitch layouts |
| High surge current rating | 210 A non-repetitive peak withstand capability-supports IEC 61000-4-5 Level 4 surge immunity compliance |
| Low dynamic impedance | 25 Ω at 25 mA ensures <1% output variation across 10–200 mA load current swing |
Applications
| Industrial Power Supply Feedback | Automotive Load Dump Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Shunt reference diode providing stable 47 V reference to TL431 or similar error amplifier. Use Value: ±2% tolerance and 25 Ω ZZT maintain <±0.5% output regulation across line/load/temperature variations. |
Use Scenario: Clamping 12 V battery rail during ISO 7637-2 Pulse 5a load dump events (up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Transient voltage suppressor placed between battery rail and ECU input protection stage. Use Value: 210 A surge rating and 47 V clamping voltage limit downstream IC stress below absolute maximum ratings. |
| Programmable Logic Controller I/O Protection | Telecom DC-DC Converter Reference |
Use Scenario: Protecting 24 V digital input channels against field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Primary shunt clamp limiting input voltage to PLC input buffer ICs. Use Value: Low 0.5 µA leakage at 33.8 V prevents false triggering in high-impedance sensing circuits. |
Use Scenario: Providing accurate 47 V reference for current-mode control in telecom -48 V to +5 V intermediate bus converters. IC Role / Device Role / Timing Role: Precision voltage reference for PWM controller feedback divider network. Use Value: −65 °C to +150 °C operating range ensures stability across telecom equipment chassis temperature gradients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5368BRLG | Axial-leaded T-18 package; identical 47 V ±2%, 5 W rating, but RθJA = 120 °C/W vs. 90 °C/W for SMBG5368C/TR13 | Requires through-hole mounting and larger board area; unsuitable for high-density SMT production | Select when legacy through-hole assembly or manual prototyping is required |
| SMBJ5368C | DO-214AA J-bend package; same electrical specs but 35 Ω ZZT (vs. 25 Ω) and 200 A IZSM (vs. 210 A) | Lower thermal performance due to higher RθJL (30 °C/W); less effective in thermally constrained layouts | Select only if DO-214AA footprint compatibility is mandatory and 10% ZZT degradation is acceptable |
Compared with 1N5368BRLG and SMBJ5368C, SMBG5368C/TR13 delivers superior thermal performance (25 °C/W RθJL), tighter ZZT, and gull-wing manufacturability-making it optimal for automated SMT lines targeting high-reliability industrial power systems.
Availability
SMBG5368C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronics, programmable logic controllers, and telecom DC-DC converters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5368C/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 radiation-hardened components for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-stress environments where JEDEC-compatibility, thermal robustness, and RoHS compliance are mandatory.
FAQ
What is the Zener voltage tolerance of SMBG5368C/TR13?
The "C" suffix in SMBG5368C/TR13 denotes ±2% Zener voltage tolerance at 25 mA test current, meaning the actual VZ falls within 46.06 V to 47.94 V at 25 °C. This tighter tolerance than ±5% (B suffix) or ±10% (A suffix) variants supports precision feedback and reference applications where output accuracy is critical.
Does SMBG5368C/TR13 require dry packing before reflow soldering?
No, SMBG5368C/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, confirmed by its plastic encapsulation and void-free epoxy body. It may be stored and processed directly without baking or dry pack, simplifying manufacturing flow and reducing handling cost versus MS level 2+ devices.
What is the maximum continuous Zener current for SMBG5368C/TR13 at 70 °C ambient?
At 70 °C ambient on FR4 with recommended footprint, SMBG5368C/TR13's power derating curve limits dissipation to ~3.3 W. Using IZM = P/VZM with VZM = 47.94 V (high-end tolerance), maximum continuous current is approximately 69 mA-well below its 2.7 A rated IZM at 25 °C.
Is SMBG5368C/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5368C/TR13 features RoHS-compliant matte-tin plating rated for peak reflow temperatures up to 260 °C for 10 seconds, fully supporting standard JEDEC J-STD-020 Class 3 lead-free reflow profiles without solderability degradation or intermetallic formation issues.
How does the gull-wing lead frame of SMBG5368C/TR13 improve manufacturability?
The gull-wing geometry of SMBG5368C/TR13 provides self-centering during reflow, reduces tombstoning on asymmetric pads, and allows 100% optical inspection of solder fillets-critical for automotive and industrial products requiring zero-defect assembly. Its DO-215AA footprint also enables higher board density than axial or DO-214AA alternatives.
SMBG5368C/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):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 33.8 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)
SMBG5368C/TR13 FAQ
1.How can I place an order for SMBG5368C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5368C/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 SMBG5368C/TR13 reliable?
The price and inventory of SMBG5368C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5368C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5368C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5368C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5368C/TR13?
SMBG5368C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5368C/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 SMBG5368C/TR13?
For technical support, including SMBG5368C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5368C/TR13 requirements.
6.How does Aetrix verify that SMBG5368C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5368C/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 SMBG5368C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5368C/TR13?
All SMBG5368C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5368C/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 SMBG5368C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5368C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5368C/TR13 Tags
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