Microchip Technology SMBG5367AE3/TR13
- Part No.:
- SMBG5367AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5367AE3/TR13.pdf
- Description:
- DIODE ZENER 43V 5W DO214AA
- Quantity:
- Payment:

- Shipping:

Inventory:2,898
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Product details
Overview
SMBG5367AE3/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 190 A maximum surge current. It operates in the DO-215AA gull-wing package and is used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5367AE3/TR13 datasheet, SMBG5367AE3/TR13 pinout, SMBG5367AE3/TR13 application, or SMBG5367AE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (25 °C/W junction-to-lead), surge current capability, RoHS-compliant matte-tin plating, and compatibility with automated SMT assembly on FR4 boards.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown. Its regulation performance is defined at IZT = 30 mA, with VZ = 43 V (min 38.7 V, max 47.3 V), ZZT = 20 Ω, and IR ≤ 0.5 µA at VR = 32.7 V.
Thermal design relies on low RθJL = 25 °C/W and RθJA = 90 °C/W (on FR4, 1 oz Cu). It withstands 8.3 ms half-sine surge pulses up to 190 A and maintains moisture sensitivity level 1 per J-STD-020B without dry pack.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±10% - defines regulated output voltage range (38.7–47.3 V) at 30 mA test current |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management when lead temperature exceeds 25 °C |
| Dynamic Impedance (ZZT) | 20 Ω @ IZT = 30 mA - determines regulation stability under load current variation |
| Max Surge Current (IZSM) | 190 A (8.3 ms half-sine) - supports transient overvoltage clamping in power rails |
| Reverse Leakage (IR) | ≤0.5 µA @ VR = 32.7 V - ensures minimal quiescent current in standby regulation |
| Junction Temp Range | −65 to +150 °C - enables operation in industrial and automotive under-hood environments |
| Thermal Resistance | RθJL = 25 °C/W - critical for calculating junction temperature rise from lead temperature |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals only. Designed for visible solder joint inspection and high-density PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current |
| Cathode | Regulated output node | Banded end; supplies stable 43 V reference when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5367B equivalence | Identical electrical characteristics and test methods to legacy through-hole 1N5367B |
| RoHS-compliant plating | Matte-tin (e3) finish meets lead-free soldering requirements and MIL-STD-750 solderability |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk during reflow |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies handling and eliminates bake-out prior to assembly |
| High surge current rating | 190 A non-repetitive surge supports robust overvoltage protection in DC power systems |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter feedback network. IC Role / Device Role / Timing Role: Zener reference diode providing stable 43 V bias for optocoupler LED drive. Use Value: Maintains ±10% output voltage accuracy across line/load/temperature with minimal drift. | Use Scenario: Clamps transients on 4–20 mA loop-powered sensor outputs. IC Role / Device Role / Timing Role: Overvoltage protector limiting signal rail to 43 V during ESD or inductive kick events. Use Value: Survives 190 A surge pulses without degradation, preserving sensor integrity. |
| Automotive Body Control Module | Programmable Logic Controller Input Protection |
Use Scenario: Stabilizes 43 V auxiliary rail powering microcontroller peripherals in BCM. IC Role / Device Role / Timing Role: Voltage regulator maintaining stable bias for CAN transceivers and I/O drivers. Use Value: Operates continuously from −40 to +125 °C ambient with no derating below 150 °C junction limit. | Use Scenario: Protects 24 V digital input channels against field-wiring surges. IC Role / Device Role / Timing Role: Clamp diode shunting excess energy to ground during 1 kV/500 A surge tests. Use Value: Delivers 190 A peak surge current capacity while holding clamped voltage ≤47.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5367B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IR specs; higher RθJA (125 °C/W) | Requires through-hole assembly; unsuitable for high-density SMT layouts | Select when legacy through-hole compatibility or manual prototyping is required |
| SMBJ5367B | DO-214AA J-bend package; same VZ and tolerances; RθJA = 85 °C/W; IZSM = 170 A | Lower surge rating and different footprint; not gull-wing compatible | Choose for cost-sensitive J-bend designs where 20 A lower surge margin is acceptable |
Compared with SMBG5367AE3/TR13, 1N5367B offers identical regulation but lacks SMT compatibility and thermal performance, while SMBJ5367B trades gull-wing visibility and 20 A surge headroom for lower-cost J-bend mounting.
Availability
SMBG5367AE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive body control modules, and programmable logic controller input protection requiring stable component supply and RoHS compliance.
Supply support for SMBG5367AE3/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The SMBG53xx series targets surface-mount voltage regulation in space-constrained, thermally demanding applications where gull-wing visibility and JEDEC-compatibility are essential.
FAQ
What is the Zener voltage tolerance of SMBG5367AE3/TR13?
The 'A' suffix in SMBG5367AE3/TR13 indicates ±10% Zener voltage tolerance, meaning its breakdown voltage ranges from 38.7 V to 47.3 V at 30 mA test current. This tolerance is verified per JEDEC test conditions and applies across the full operating temperature range of −65 to +150 °C. SMBG5367AE3/TR13 maintains this specification under standard SMT reflow profiles and after 1000-hour life testing.
Is SMBG5367AE3/TR13 RoHS compliant?
Yes, SMBG5367AE3/TR13 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. It features annealed matte-tin plating that meets J-STD-006 and passes solderability testing per MIL-STD-750 Method 2026. The device is rated MSL Level 1 and requires no dry pack or baking before assembly, supporting lead-free reflow processes up to 260 °C for 10 seconds.
What is the maximum surge current rating for SMBG5367AE3/TR13?
SMBG5367AE3/TR13 has a maximum non-repetitive surge current (IZSM) of 190 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table. This rating assumes proper PCB thermal design with recommended pad layout on FR4 (1 oz Cu). Exceeding this value may cause irreversible junction damage, and repeated surges must be spaced to allow full thermal recovery.
How does SMBG5367AE3/TR13 compare to the through-hole 1N5367B?
SMBG5367AE3/TR13 matches 1N5367B in all electrical parameters including VZ, IZT, ZZT, IR, and IZSM, but uses a DO-215AA gull-wing package instead of axial T-18. Its RθJL is 25 °C/W versus 125 °C/W for 1N5367B, enabling superior thermal performance in SMT applications. SMBG5367AE3/TR13 also carries RoHS-compliant e3 plating, whereas standard 1N5367B uses Sn/Pb.
What is the thermal resistance from junction to ambient for SMBG5367AE3/TR13?
The junction-to-ambient thermal resistance (RθJA) of SMBG5367AE3/TR13 is 90 °C/W when mounted on an FR4 printed circuit board with 1 oz copper and the recommended pad layout. This value assumes natural convection cooling; forced airflow or copper pour enhancements can reduce effective RθJA. For thermal design, use RθJL = 25 °C/W when heatsinking via the leads is possible.
SMBG5367AE3/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)
SMBG5367AE3/TR13 FAQ
1.How can I place an order for SMBG5367AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5367AE3/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 SMBG5367AE3/TR13 reliable?
The price and inventory of SMBG5367AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5367AE3/TR13 is usually 5 days.
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Once your SMBG5367AE3/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 SMBG5367AE3/TR13?
For technical support, including SMBG5367AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5367AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5367AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5367AE3/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 SMBG5367AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5367AE3/TR13?
All SMBG5367AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5367AE3/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 SMBG5367AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5367AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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