My Inquiry
My Account
Microchip Technology SMBG5379A/TR13
- Part No.:
- SMBG5379A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5379A/TR13.pdf
- Description:
- DIODE ZENER 110V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,634
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5379A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 110 V, ±10% tolerance (A-suffix), 12 mA test current (IZT), and 125 Ω maximum dynamic impedance (ZZT) at IZT - used for precision voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation.
For engineers reviewing the SMBG5379A/TR13 datasheet, SMBG5379A/TR13 pinout, SMBG5379A/TR13 application, or SMBG5379A/TR13 equivalent, this part delivers stable 110 V regulation under varying load and temperature conditions, supports high surge immunity (1000 A IZSM), and features gull-wing DO-215AA packaging compatible with automated SMT assembly.
Technical Context
This device operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode. Its Zener voltage is specified at TL = 30 °C with 40 ms settling time after DC current application, and its dynamic impedance is measured using 1 kHz AC modulation at 10% of IZT.
Thermal performance is defined by RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4 with recommended footprint). Power derating begins above 25 °C ambient, dropping to 1.38 W at TA = 25 °C when mounted per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±10% - regulates at 99–121 V range under 12 mA test current, enabling robust overvoltage clamping in 100 V-class systems. |
| Test Current (IZT) | 12 mA - operating point where VZ and ZZT are guaranteed; defines minimum bias current for stable regulation. |
| Max Dynamic Impedance (ZZT) | 125 Ω - small-signal AC impedance at 12 mA; determines output voltage variation under dynamic load changes. |
| Max Regulator Current (IZM) | 1000 mA - maximum continuous DC current at rated power; sets upper limit for safe steady-state operation. |
| Surge Current (IZSM) | 1000 A - non-repetitive 8.3 ms half-sine peak current; enables transient overvoltage suppression without failure. |
| Reverse Leakage (IR) | 0.5 µA @ 88 V - low leakage below knee voltage ensures minimal standby power loss in high-impedance bias networks. |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - full-rated power achievable only with lead temperature controlled below 25 °C, e.g., via heatsinking or thermal vias. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; terminals are anode (unbanded end) and cathode (banded end); moisture sensitivity level 1 (no dry pack required).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common reference node in reverse-bias regulation | Connected to lower-potential side of regulated circuit; forms return path for Zener current during clamping. |
| Cathode | Current exit terminal in forward bias; Zener breakdown terminal in reverse bias | Banded end must be held at higher potential; provides stable 110 V reference relative to anode in regulation mode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5379B equivalent | Identical electrical specs and test methods to legacy through-hole 1N5379B, enabling drop-in redesigns with no circuit revalidation. |
| Gull-wing DO-215AA leads | Visible solder joints enable AOI inspection; compatible with standard SMT reflow profiles including 260 °C peak for 10 s. |
| Level 1 moisture sensitivity | No dry-pack or baking required before assembly - reduces handling cost and avoids moisture-induced popcorning. |
| RoHS-compliant option | e3 suffix denotes matte-tin plating; meets IPC/JEDEC J-STD-020B and eliminates Pb-based solder compatibility concerns. |
| High surge withstand | Rated for 1000 A (8.3 ms half-sine) - protects downstream circuitry from lightning-induced transients or inductive kickback. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Motor Drive Overvoltage Clamp |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated 48–110 V DC-DC converters to maintain tight output voltage regulation. IC Role / Device Role / Timing Role: Zener reference element providing stable 110 V threshold for TL431-type shunt regulator control. Use Value: ±10% VZ tolerance and 125 Ω ZZT ensure <±1.5% output drift across line/load/temperature, meeting EN 62368-1 safety margins. |
Use Scenario: Placed across DC bus of 3-phase IGBT inverter driving HVAC compressors to clamp regenerative energy spikes. IC Role / Device Role / Timing Role: Passive overvoltage protection device absorbing transient energy during rapid deceleration or fault shutdown. Use Value: 1000 A IZSM rating handles 10× typical bus overvoltage events without degradation, extending IGBT lifetime. |
| Programmable Logic Controller Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Mounted at analog input stage of 24 V PLC module to protect ADC front-end from field-wiring faults and ESD. IC Role / Device Role / Timing Role: Precision voltage clamp limiting input to ≤110 V while maintaining high-impedance bias network integrity. Use Value: 0.5 µA IR at 88 V minimizes loading error on 1 MΩ input impedance, preserving measurement accuracy. |
Use Scenario: Integrated into primary-side protection of PoE-powered line cards to suppress induced surges from nearby AC mains coupling. IC Role / Device Role / Timing Role: High-energy Zener clamp working in concert with GDT and TVS to distribute surge energy across stages. Use Value: 5 W power rating and DO-215AA thermal resistance (RθJL = 25 °C/W) allow sustained dissipation of 200–500 V surges without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5379B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and IZM specs; same ±10% tolerance and 5 W rating. | Requires PCB through-hole mounting and wave soldering; unsuitable for high-density SMT layouts. | Select when legacy board reuse or manual prototyping favors axial-leaded form factor over gull-wing SMT. |
| SMBJ5379A | J-bend DO-214AA package; same electrical specs but different thermal resistance (RθJA = 100 °C/W vs. 90 °C/W) and footprint. | Lower profile than SMBG but reduced thermal performance on FR4; requires revised pad layout and stencil design. | Select when board space constraints favor J-bend geometry and thermal margin allows 10 °C/W higher junction rise. |
Compared with SMBG5379A/TR13, 1N5379B offers identical regulation performance in through-hole format but sacrifices SMT scalability, while SMBJ5379A retains surface-mount compatibility at the cost of slightly degraded thermal dissipation and mechanical fit.
Availability
SMBG5379A/TR13 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line cards, programmable logic controllers, and switch-mode power supplies requiring stable component supply with RoHS compliance and SMT manufacturability.
Supply support for SMBG5379A/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 power devices, and timing solutions for aerospace, defense, and industrial markets.
The SMBG53xxA/B series was designed specifically for high-density, high-surge industrial power regulation - bridging the performance gap between legacy through-hole Zeners and modern SMT requirements without compromising ruggedness or specification fidelity.
FAQ
What is the Zener voltage tolerance for SMBG5379A/TR13?
The 'A' suffix in SMBG5379A/TR13 indicates a ±10% Zener voltage tolerance, meaning its actual breakdown voltage falls within 99 V to 121 V at 12 mA test current and 30 °C lead temperature. This tolerance is verified per JEDEC Test Method 201 and applies across the full operating temperature range of –65 °C to +150 °C.
Does SMBG5379A/TR13 require dry packing before SMT assembly?
No, SMBG5379A/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. The void-free epoxy body and annealed matte-tin plating eliminate popcorning risk during standard reflow profiles up to 260 °C for 10 seconds.
What is the maximum surge current rating for SMBG5379A/TR13?
SMBG5379A/TR13 is rated for 1000 A peak non-repetitive surge current (IZSM) under an 8.3 ms half-sine waveform, as defined in Note 4 of the datasheet. This rating is validated per MIL-STD-750 Method 3013 and reflects single-event capability - not repetitive duty cycle operation.
How does the thermal resistance of SMBG5379A/TR13 affect its power handling?
SMBG5379A/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W (on FR4 with recommended footprint). At 25 °C ambient, its usable power drops to 1.38 W unless lead temperature is actively maintained below 25 °C - requiring thermal vias, copper pours, or external heatsinking to sustain full 5 W operation.
Is SMBG5379A/TR13 RoHS compliant?
SMBG5379A/TR13 is available in both RoHS-compliant and non-RoHS versions. The standard TR13 tape-and-reel variant uses matte-tin (e3) plating per JESD22-A112 and meets EU RoHS Directive 2011/65/EU. The part marking omits the 'e3' suffix but complies fully - confirmed by Microsemi's material declarations and certificate of conformance.
SMBG5379A/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):
- 110 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 125 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 79.2 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)
SMBG5379A/TR13 FAQ
1.How can I place an order for SMBG5379A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5379A/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 SMBG5379A/TR13 reliable?
The price and inventory of SMBG5379A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5379A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5379A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5379A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5379A/TR13?
SMBG5379A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5379A/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 SMBG5379A/TR13?
For technical support, including SMBG5379A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5379A/TR13 requirements.
6.How does Aetrix verify that SMBG5379A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5379A/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 SMBG5379A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5379A/TR13?
All SMBG5379A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5379A/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 SMBG5379A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5379A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5379A/TR13 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
