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Microchip Technology SMBG5361B/TR13
- Part No.:
- SMBG5361B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5361B/TR13.pdf
- Description:
- DIODE ZENER 27V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,579
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Product details
Overview
SMBG5361B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 27 V, ±5% tolerance (B suffix), 50 mA test current (IZT), 5.0 Ω dynamic impedance (ZZT), and maximum regulator current of 120 mA (IZM). 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 SMBG5361B/TR13 datasheet, SMBG5361B/TR13 pinout, SMBG5361B/TR13 application, or SMBG5361B/TR13 equivalent, key selection criteria include Zener voltage accuracy at IZT = 50 mA, thermal resistance (RθJL = 25 °C/W), surge current capability (IZSM = 4.1 A), and RoHS-compliant matte-tin plating compatibility with lead-free reflow.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse breakdown, with specified regulation performance at IZT = 50 mA and TL = 30 °C. Its Zener voltage is measured 40 ±10 ms after DC current application to minimize thermal transient effects.
The SMBG5361B/TR13 exhibits low dynamic impedance (5.0 Ω) near its knee region and maintains stable regulation across -65 °C to +150 °C junction temperature range. It withstands non-repetitive 8.3 ms half-sine surge currents up to 4.1 A and meets MIL-STD-750 Method 1020 for ESD insensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27 V ±5% at IZT = 50 mA - defines regulated output voltage under nominal bias conditions |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when mounted on FR4 with recommended footprint |
| Dynamic Impedance (ZZT) | 5.0 Ω at IZT = 50 mA - determines voltage deviation under load current variation |
| Max Regulator Current (IZM) | 120 mA - maximum continuous DC current before exceeding 5 W rating at high-end VZ tolerance |
| Surge Current (IZSM) | 4.1 A (8.3 ms half-sine) - supports transient overvoltage clamping without failure |
| Junction Temperature Range | -65 °C to +150 °C - enables operation in automotive under-hood and industrial control environments |
| Thermal Resistance (RθJL) | 25 °C/W - indicates efficient heat conduction from junction to lead, critical for reliability under sustained load |
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. Weight: 0.1 g. Moisture sensitivity level: IPC/JEDEC J-STD-020B Level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased terminal during regulation | Connected to lower-potential node; carries full regulator current in clamp mode |
| Cathode | Zener breakdown terminal | Banded end; connected to higher-potential node; establishes regulated reference voltage at this node |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5361B equivalent | Identical electrical characteristics and testing to through-hole 1N5361B, enabling drop-in replacement in legacy designs |
| Gull-wing lead form | Enables visual solder joint inspection and improves mechanical reliability vs. J-bend packages |
| RoHS-compliant matte-tin plating | Supports Pb-free reflow profiles up to 260 °C for 10 s without degradation |
| Level 1 moisture sensitivity | Eliminates baking requirement prior to assembly, reducing manufacturing cost and handling risk |
| High surge current rating | 4.1 A non-repetitive surge capability allows use in input-stage transient suppression without external series resistance |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Zener reference providing stable 27 V bias to optocoupler LED driver. Use Value: Maintains ±5% output voltage accuracy across line/load/temperature with minimal drift due to low ZZT (5.0 Ω) and tight VZ tolerance. |
Use Scenario: Clamps and stabilizes excitation voltage for 4–20 mA current-loop pressure transmitters. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing precise 27 V rail for sensor bridge biasing. Use Value: Ensures consistent sensor output scaling by holding excitation within ±0.5 V over -40 °C to +85 °C ambient. |
| Automotive Body Control Module Protection | Programmable Logic Controller Input Protection |
Use Scenario: Suppresses load-dump transients on 24 V battery-supplied microcontroller I/O lines. IC Role / Device Role / Timing Role: Shunt clamp absorbing 8.3 ms surges up to 4.1 A without failure. Use Value: Prevents latch-up or damage to downstream logic by limiting clamped voltage to ≤32 V during ISO 7637-2 Pulse 5a events. |
Use Scenario: Protects 24 V digital input channels from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed before opto-isolator input stage. Use Value: Extends system MTBF by diverting >95% of 100 A/100 µs surge energy away from sensitive isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5361B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZM specs; same ±5% tolerance. | Requires PCB layout change; not suitable for high-density SMT assemblies. | Select when legacy through-hole assembly or manual repair is required. |
| SMBJ5361B | J-bend DO-214AA package; identical electrical specs but higher RθJA (100 °C/W vs. 90 °C/W); same RoHS compliance. | Lower thermal performance on FR4; may require derating above 70 °C ambient. | Select when existing DO-214AA footprint is fixed and thermal margin permits. |
Compared with SMBG5361B/TR13, 1N5361B offers identical regulation performance but mandates through-hole assembly, while SMBJ5361B shares SMT compatibility but delivers lower thermal efficiency-making SMBG5361B/TR13 optimal for space-constrained, thermally demanding applications requiring visible solder joints.
Availability
SMBG5361B/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 RoHS compliance and high surge immunity.
Supply support for SMBG5361B/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 SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in high-density power systems where thermal performance, visual solder inspection, and JEDEC compatibility are critical.
FAQ
What is the Zener voltage tolerance for SMBG5361B/TR13?
The "B" suffix in SMBG5361B/TR13 denotes a ±5% Zener voltage tolerance. At IZT = 50 mA and TL = 30 °C, the measured VZ falls between 25.65 V and 28.35 V. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of -65 °C to +150 °C.
Does SMBG5361B/TR13 support lead-free reflow soldering?
Yes, SMBG5361B/TR13 features RoHS-compliant matte-tin plating and is rated for solder temperatures up to 260 °C for 10 seconds, fully compatible with standard Pb-free reflow profiles. The device's moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1, eliminating pre-assembly baking requirements.
What is the maximum continuous current SMBG5361B/TR13 can handle?
The maximum continuous Zener current (IZM) for SMBG5361B/TR13 is 120 mA when operated at TL < 25 °C. At higher lead temperatures, power must be derated per the curve in Figure 1 of the datasheet; for example, at TL = 75 °C, IZM reduces to approximately 85 mA to maintain 5 W dissipation limit.
How does SMBG5361B/TR13 compare to SMBJ5361B in thermal performance?
SMBG5361B/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W (on FR4), while SMBJ5361B has RθJA = 100 °C/W. The gull-wing leads of SMBG5361B/TR13 provide superior heat conduction to PCB copper, enabling higher sustained power handling in compact layouts without additional heatsinking.
Is SMBG5361B/TR13 suitable for transient voltage suppression?
Yes-SMBG5361B/TR13 is rated for 4.1 A non-repetitive surge current (IZSM) using an 8.3 ms half-sine waveform. It is routinely deployed in automotive load-dump protection and industrial I/O clamping where fast response and high-energy absorption are required, provided series impedance limits peak power dissipation.
SMBG5361B/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)
SMBG5361B/TR13 FAQ
1.How can I place an order for SMBG5361B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5361B/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 SMBG5361B/TR13 reliable?
The price and inventory of SMBG5361B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5361B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5361B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5361B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5361B/TR13?
SMBG5361B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5361B/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 SMBG5361B/TR13?
For technical support, including SMBG5361B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5361B/TR13 requirements.
6.How does Aetrix verify that SMBG5361B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5361B/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 SMBG5361B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5361B/TR13?
All SMBG5361B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5361B/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 SMBG5361B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5361B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5361B/TR13 Tags
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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SMAZ12-13-F
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