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Microchip Technology SMBG5367A/TR13
- Part No.:
- SMBG5367A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5367A/TR13.pdf
- Description:
- DIODE ZENER 43V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,041
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Product details
Overview
SMBG5367A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 43 V, ±10% tolerance (A-suffix), 20 Ω dynamic impedance at 30 mA test current, and 110 mA maximum regulator current (IZM). It operates across –65 °C to +150 °C junction temperature and is used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5367A/TR13 datasheet, SMBG5367A/TR13 pinout, SMBG5367A/TR13 application, or SMBG5367A/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), surge current rating (2.8 A IZSM), moisture sensitivity level (MSL Level 1), and RoHS compliance status (non-RoHS, Sn/Pb plating).
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown, maintaining stable output voltage under varying load and temperature conditions. Its DO-215AA gull-wing package enables visible solder joints and supports high-density PCB layouts without requiring dry pack handling.
The SMBG5367A/TR13 exhibits low dynamic impedance (20 Ω) at IZT = 30 mA, minimal voltage drift versus current, and withstands non-repetitive 8.3 ms half-sine surge currents up to 2.8 A - critical for transient suppression in industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±10% at IZT = 30 mA - defines regulated output voltage with worst-case tolerance band for feedback design margining. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - sets maximum continuous DC power handling with adequate lead heat sinking. |
| Dynamic Impedance (ZZT) | 20 Ω at IZT = 30 mA - determines regulation error under load transients; lower value improves line/load regulation. |
| Max Regulator Current (IZM) | 110 mA - derived from PD/VZM = 5 W / 47.3 V; defines upper DC bias limit before thermal runaway. |
| Surge Current (IZSM) | 2.8 A (8.3 ms half-sine) - specifies single-event transient energy absorption capability for overvoltage clamping. |
| Junction Temp Range | –65 °C to +150 °C - enables operation in extended industrial and automotive under-hood environments. |
| Thermal Resistance (RθJL) | 25 °C/W - quantifies junction-to-lead thermal path efficiency; critical for thermal design when mounted on copper leads. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end must be biased positive relative to anode for Zener operation. Terminals are unmarked but follow standard SMBG polarity orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to higher-potential node; carries full Zener current during regulation or clamping. |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or feedback reference point; completes reverse-bias path. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Direct electrical and mechanical replacement for legacy through-hole 1N5367B, enabling drop-in SMT upgrade. |
| MSL Level 1 rating | No dry pack required - simplifies manufacturing flow and eliminates bake-out steps prior to reflow. |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk compared to J-bend packages. |
| High surge current capability | 2.8 A non-repetitive peak withstand - suitable for protecting downstream ICs from lightning-induced surges. |
| Low leakage at VR = 34.4 V | ≤0.5 µA - ensures minimal quiescent current draw in battery-backed or low-power standby circuits. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Motor Drive Overvoltage Clamp |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converter feedback loop using optocoupler-coupled TL431 alternative. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference providing stable 43 V threshold for error amplifier biasing. Use Value: Maintains ±10% output accuracy across –40 °C to +125 °C ambient with <20 Ω dynamic impedance limiting load regulation error. |
Use Scenario: Clamps DC bus overvoltage spikes caused by regenerative braking in 48 V BLDC motor drives. IC Role / Device Role / Timing Role: Passive crowbar element shunting excess energy into snubber resistor during transient events. Use Value: Withstands 2.8 A 8.3 ms surges without degradation, preventing IGBT gate driver latch-up or bus capacitor rupture. |
| Programmable Logic Controller Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Protects 24 V digital input channels from field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Standby-mode Zener clamp absorbing ESD and inductive kick energy before reaching FPGA I/O pins. Use Value: Sub-µA leakage at 34.4 V ensures no false triggering; MSL Level 1 allows direct placement in automated SMT lines. |
Use Scenario: Secondary-level surge protection on -48 V telecom power feeds exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response voltage limiter placed after primary GDT or MOV, refining clamping accuracy. Use Value: 43 V VZ aligns with ITU-T K.20 coordination requirements; 25 °C/W RθJL supports thermal coupling to chassis ground plane. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5367B | Identical electrical specs and DO-204AL axial package; 100% functional match but through-hole mounting required. | Requires PCB redesign for through-hole footprint and wave solder process; not suitable for high-density SMT assemblies. | Select when legacy board reuse or manual prototyping favors axial-leaded components over surface mount. |
| SMBJ5367A | Same VZ, tolerance, and power rating but in DO-214AA J-bend package; RθJA = 90 °C/W vs. 25 °C/W (RθJL) for SMBG. | Lower thermal performance in lead-mounted configurations; requires larger copper pour for equivalent power handling. | Select when existing layout uses DO-214AA footprints or when gull-wing inspection is not required. |
Compared with SMBG5367A/TR13, 1N5367B offers identical regulation but mandates through-hole assembly, while SMBJ5367A trades thermal efficiency for J-bend compatibility - making SMBG5367A/TR13 optimal for thermally constrained, high-reliability SMT designs.
Availability
SMBG5367A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial motor drives, programmable logic controllers, and telecom line cards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5367A/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 devices, and timing solutions for aerospace, defense, and industrial markets.
The SMBG53xxA/B series was designed specifically to provide JEDEC-compatible, surface-mount Zener regulation with enhanced thermal performance and MSL Level 1 handling - targeting high-volume industrial power conversion and protection applications.
FAQ
What is the Zener voltage tolerance of SMBG5367A/TR13?
The SMBG5367A/TR13 has a Zener voltage tolerance of ±10%, as indicated by the "A" suffix in the part number. This means its measured VZ falls between 38.7 V and 47.3 V at IZT = 30 mA and TL = 25 °C. The tolerance directly impacts feedback loop accuracy in power supply designs and must be accounted for in worst-case margin analysis for SMBG5367A/TR13 applications.
Does SMBG5367A/TR13 require dry packing before reflow soldering?
No, SMBG5367A/TR13 is rated MSL Level 1 per IPC/JEDEC J-STD-020B, meaning it has unlimited floor life and does not require dry pack storage or baking prior to reflow. This simplifies manufacturing logistics and eliminates moisture-related defects such as popcorning during SMBG5367A/TR13 assembly.
What is the maximum surge current rating for SMBG5367A/TR13?
The SMBG5367A/TR13 is rated for a non-repetitive peak surge current (IZSM) of 2.8 A with an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the Microsemi datasheet T4-LDS-0246-1 and defines the device's ability to absorb transient energy without failure during SMBG5367A/TR13 overvoltage protection use cases.
Is SMBG5367A/TR13 RoHS compliant?
No, SMBG5367A/TR13 uses Sn/Pb plating and is not RoHS compliant; the "e3" suffix would indicate RoHS compliance, which is absent here. This affects compliance for products targeting EU markets unless exempted - always verify regulatory alignment before finalizing SMBG5367A/TR13 in new designs.
How does the thermal resistance of SMBG5367A/TR13 compare between junction-to-lead and junction-to-ambient?
SMBG5367A/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W (on FR4 with recommended footprint). The 3.6× difference highlights that effective heat transfer depends heavily on copper land design - SMBG5367A/TR13 achieves optimal thermal performance only when leads are thermally coupled to large copper areas or heatsinks, not via ambient convection alone.
SMBG5367A/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):
- 43 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 31 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)
SMBG5367A/TR13 FAQ
1.How can I place an order for SMBG5367A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5367A/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 SMBG5367A/TR13 reliable?
The price and inventory of SMBG5367A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5367A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5367A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5367A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5367A/TR13?
SMBG5367A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5367A/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 SMBG5367A/TR13?
For technical support, including SMBG5367A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5367A/TR13 requirements.
6.How does Aetrix verify that SMBG5367A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5367A/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 SMBG5367A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5367A/TR13?
All SMBG5367A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5367A/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 SMBG5367A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5367A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5367A/TR13 Tags
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MM5Z5V1ST1G
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