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Microchip Technology SMBG5361BE3/TR13
- Part No.:
- SMBG5361BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5361BE3/TR13.pdf
- Description:
- DIODE ZENER 27V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,339
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Product details
Overview
SMBG5361BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 27 V, ±5% tolerance (B suffix), DO-215AA gull-wing package, and maximum Zener current IZM of 50 mA at 25 °C lead temperature - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5361BE3/TR13 datasheet, SMBG5361BE3/TR13 pinout, SMBG5361BE3/TR13 application, or SMBG5361BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (IZSM = 176 A), thermal resistance (RθJL = 25 °C/W), and RoHS-compliant matte-tin plating per MIL-STD-750 method 2026.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with specified test current IZT = 50 mA and dynamic impedance ZZT = 5.0 Ω at that point. Its Zener knee current IZK is defined at 1.0 mA, where ZZK = 40 Ω.
Thermal performance is characterized by junction-to-lead resistance of 25 °C/W and junction-to-ambient resistance of 90 °C/W on FR4 with recommended footprint. It withstands solder reflow up to 260 °C for 10 s and exhibits moisture sensitivity level 1 per J-STD-020B - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at IZT = 50 mA - defines stable regulation point under typical operating current |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when lead temperature exceeds 25 °C |
| Dynamic Impedance (ZZT) | 5.0 Ω at IZT = 50 mA - low impedance ensures minimal output voltage variation with load current changes |
| Max Surge Current (IZSM) | 176 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Reverse Leakage (IR) | 0.5 µA at VR = 20.1 V - guarantees negligible standby current in high-impedance bias networks |
| Junction Temp Range | –65 °C to +150 °C - enables operation in automotive under-hood and industrial control environments |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; terminals are anode (unbanded end) and cathode (banded end); polarity must be observed - device conducts in reverse bias during regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; establishes reference for Zener voltage drop |
| Cathode | Regulated output node | Banded terminal; voltage at this node is clamped to VZ above anode potential during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Fully compatible with legacy 1N5361B designs - same electrical specs and test methods |
| RoHS-compliant matte-tin plating | Solderable per MIL-STD-750 method 2026; eliminates Pb-based finishes while maintaining reliability |
| Gull-wing lead form | Enables visual solder joint inspection and reduces tombstoning risk on fine-pitch PCBs |
| Level 1 moisture sensitivity | No dry pack or baking required before reflow - simplifies SMT line handling and inventory control |
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 27 V reference for optocoupler bias and TL431-like comparator input. Use Value: Tight ±5% VZ tolerance and low 5.0 Ω dynamic impedance maintain <±1% output voltage regulation across line/load variations. |
Use Scenario: Clamps and references analog sensor output (e.g., 4–20 mA transmitter) before ADC input. IC Role / Device Role / Timing Role: Overvoltage protector and precision DC reference for ratiometric signal scaling. Use Value: 176 A surge rating absorbs ESD events per MIL-STD-750 method 1020; 0.5 µA IR prevents loading of high-Z sensor outputs. |
| Automotive Body Control Module | Programmable Logic Controller Input Protection |
Use Scenario: Protects microcontroller GPIO pins from load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between protected line and chassis ground. Use Value: 27 V standoff allows normal 13.5–14.5 V operation while clamping >28 V spikes; DO-215AA gull-wing aids automated optical inspection. |
Use Scenario: Shields PLC digital input circuitry from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Primary clamp in multi-stage protection network upstream of TVS diode and series resistor. Use Value: 5 W continuous dissipation handles sustained overvoltages; RθJL = 25 °C/W enables reliable thermal coupling to copper pour on industrial PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs; non-RoHS (Sn/Pb plating) | Requires through-hole assembly; unsuitable for high-density SMT layouts | Select when legacy through-hole design or manual repair is required; not suitable for new SMT-only boards |
| SMBJ5361B | DO-214AA J-bend package; same electrical specs; slightly higher RθJA (100 °C/W vs. 90 °C/W) | Lower profile but less visible solder joints; marginally reduced thermal performance on FR4 | Prefer when board space constraints favor J-bend geometry; verify thermal margin with layout-specific simulation |
Compared with SMBG5361BE3/TR13, 1N5361B requires through-hole mounting and lacks RoHS compliance, while SMBJ5361B offers identical regulation performance in a different surface-mount form factor with modest thermal trade-offs.
Availability
SMBG5361BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5361BE3/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.
The SMBG53xxB series was designed to deliver JEDEC-standard 5 W Zener regulation in a robust, inspectable gull-wing SMT package for mission-critical power and protection applications.
FAQ
What is the Zener voltage tolerance and test condition for SMBG5361BE3/TR13?
The SMBG5361BE3/TR13 has a Zener voltage tolerance of ±5%, denoted by the "B" suffix. VZ is specified as 27 V measured at TL = 25 °C with a test current IZT of 50 mA, per Microsemi T4-LDS-0246-1 Rev. 1. The measurement is performed 40 ±10 ms after applying DC current to avoid thermal drift effects.
Does SMBG5361BE3/TR13 require dry packing before reflow soldering?
No, SMBG5361BE3/TR13 does not require dry packing. It carries IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it can be stored indefinitely at ambient conditions without baking. This simplifies handling in SMT lines and eliminates pre-reflow bake cycles.
What is the maximum surge current rating for SMBG5361BE3/TR13 and its waveform definition?
The SMBG5361BE3/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 176 A. This value is defined for a single half-sine wave pulse of 8.3 ms duration, per Microsemi's characterization methodology in T4-LDS-0246-1. It reflects capability to absorb transient energy without parametric shift or failure.
How does the thermal resistance of SMBG5361BE3/TR13 affect PCB layout decisions?
SMBG5361BE3/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W on FR4 with recommended footprint. To maintain safe junction temperature, designers must provide adequate copper area connected to the leads - especially the cathode - and avoid excessive ambient temperature rise. Thermal derating curves in Figure 1 guide power reduction above 25 °C lead temperature.
Is SMBG5361BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5361BE3/TR13 is qualified for lead-free reflow with peak solder temperature up to 260 °C for 10 seconds, per MIL-STD-750 method 2026. Its RoHS-compliant matte-tin plating ensures reliable wetting and intermetallic formation under standard JEDEC J-STD-020 profiles.
SMBG5361BE3/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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 19.4 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)
SMBG5361BE3/TR13 FAQ
1.How can I place an order for SMBG5361BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5361BE3/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 SMBG5361BE3/TR13 reliable?
The price and inventory of SMBG5361BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5361BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5361BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5361BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5361BE3/TR13?
SMBG5361BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5361BE3/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 SMBG5361BE3/TR13?
For technical support, including SMBG5361BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5361BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5361BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5361BE3/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 SMBG5361BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5361BE3/TR13?
All SMBG5361BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5361BE3/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 SMBG5361BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5361BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5361BE3/TR13 Tags
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