My Inquiry
My Account
Microchip Technology SMBG5379AE3/TR13
- Part No.:
- SMBG5379AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5379AE3/TR13.pdf
- Description:
- DIODE ZENER 110V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,939
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5379AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 110 V, ±10% tolerance (A suffix), and maximum Zener current IZM of 12 mA at TL < 25 °C. It uses DO-215AA gull-wing packaging, supports visible solder joints, and operates across –65 °C to +150 °C junction temperature range. It serves as a precision voltage reference or overvoltage clamp in industrial power supply feedback loops.
For engineers reviewing the SMBG5379AE3/TR13 datasheet, SMBG5379AE3/TR13 pinout, SMBG5379AE3/TR13 application, or SMBG5379AE3/TR13 equivalent, key selection criteria include its 110 V Zener voltage, 12 mA maximum regulator current, 125 Ω dynamic impedance at 12 mA, 0.5 µA reverse leakage at 88 V, and RoHS-compliant matte-tin plating - all critical for stable regulation under surge and thermal stress.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse-biased breakdown mode. Its Zener voltage is specified at 110 V ±10% measured at 12 mA test current (IZT), with dynamic impedance ZZT = 125 Ω at that point and knee impedance ZZK = 45 Ω at 1.0 mA.
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). It withstands non-repetitive 8.3 ms half-sine surge currents up to 1000 A and exhibits ≤0.5 µA reverse leakage at VR = 88 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±10% at IZT = 12 mA - defines stable regulation point for feedback or clamping circuits |
| Maximum Regulator Current (IZM) | 12 mA at TL < 25 °C - sets upper DC current limit before thermal derating begins |
| Dynamic Impedance (ZZT) | 125 Ω at IZT = 12 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤0.5 µA at VR = 88 V - ensures minimal standby power loss in high-impedance bias networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when mounted on PCB with lead heat sinking |
| Junction Temperature Range | –65 °C to +150 °C - enables operation in harsh industrial or automotive under-hood environments |
| Surge Current (IZSM) | 1000 A (8.3 ms half-sine) - provides transient overvoltage protection without failure |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals are accessible via symmetric gull-wing leads for visual solder inspection and automated optical alignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node in Zener regulator configuration | Connected to lower-potential side of circuit; forms return path for Zener current |
| Cathode | Regulated output node in Zener regulator configuration | Banded end; held at stable 110 V relative to anode during reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5379B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish compliant with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity |
| Gull-wing lead geometry | Enables AOI-compatible solder joint inspection and reduces tombstoning risk on fine-pitch layouts |
| High surge current rating | 1000 A non-repetitive surge capability protects downstream circuitry from lightning or inductive kick events |
| Stable voltage vs. current | Low dynamic impedance (125 Ω) and minimal VZ drift ensure tight regulation across 5–15 mA operating range |
Applications
| Industrial Power Supply Feedback | Automotive ECU Overvoltage Clamp |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback network. IC Role / Device Role / Timing Role: Zener diode providing stable 110 V reference to optocoupler LED drive circuit. Use Value: Maintains ±1% output voltage accuracy despite line/load transients due to low ZZT and high IZM margin. |
Use Scenario: Clamps 12 V rail against load-dump spikes exceeding 100 V in engine control unit power input stage. IC Role / Device Role / Timing Role: Two-terminal shunt protector absorbing surge energy before it reaches LDO or microcontroller. Use Value: Survives 1000 A/8.3 ms surges per ISO 7637-2 without degradation, eliminating need for external TVS cascade. |
| Telecom Line Card Protection | Test Equipment Voltage Reference |
Use Scenario: Guards analog front-end inputs on DSLAM line cards against induced AC transients on copper pairs. IC Role / Device Role / Timing Role: High-voltage Zener clamp placed between differential pair and ground plane. Use Value: Low leakage (<0.5 µA) prevents signal distortion while fast response limits voltage overshoot to <120 V. |
Use Scenario: Provides traceable 110 V calibration reference in portable multimeter internal divider networks. IC Role / Device Role / Timing Role: Precision voltage standard used to verify DMM full-scale accuracy at 100 V range. Use Value: ±10% tolerance and stable TC ensure repeatable readings across 0–50 °C ambient without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5379B | Same VZ (110 V), ±5% tolerance (B suffix), identical DO-215AA package and IZM = 12 mA | Higher voltage precision required where ±5% tolerance is mandatory for feedback loop stability | Select when tighter regulation tolerance is needed and RoHS compliance is not required |
| SMBG5379BE3/TR13 | Same VZ (110 V), ±5% tolerance (B suffix), RoHS-compliant e3 finish, identical thermal and surge ratings | Used where both tighter tolerance and lead-free assembly are mandated (e.g., EU medical devices) | Choose for new designs requiring RoHS + ±5% VZ spec; not pin-compatible with SMBG5379AE3/TR13 due to different tolerance coding |
Compared with SMBG5379AE3/TR13, 1N5379B offers tighter voltage tolerance but lacks RoHS compliance, while SMBG5379BE3/TR13 delivers both RoHS and ±5% tolerance - making it suitable for regulated markets but requiring layout verification due to differing part-number-driven tolerance expectations.
Availability
SMBG5379AE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, and telecom line card protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBG5379AE3/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 applications.
The SMBG53xx series was designed specifically for surface-mount 5 W Zener regulation in space-constrained, thermally demanding environments - emphasizing visible solder joints, surge survivability, and JEDEC compatibility.
FAQ
What is the Zener voltage tolerance of SMBG5379AE3/TR13?
The 'A' suffix in SMBG5379AE3/TR13 indicates a ±10% Zener voltage tolerance, meaning its breakdown voltage ranges from 99 V to 121 V at 12 mA test current. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 °C to +150 °C. The SMBG5379AE3/TR13 datasheet specifies 110 V nominal with this tolerance band.
Is SMBG5379AE3/TR13 RoHS compliant?
Yes, SMBG5379AE3/TR13 is RoHS compliant, as confirmed by the 'e3' suffix in its marking and packaging documentation. It features annealed matte-tin plating per MIL-STD-750 method 2026 and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required. This makes SMBG5379AE3/TR13 suitable for lead-free reflow processes.
What is the maximum surge current rating for SMBG5379AE3/TR13?
SMBG5379AE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 1000 A with an 8.3 ms half-sine waveform. This rating is validated per Microsemi's test methodology and reflects the device's ability to absorb transient energy without parametric shift or catastrophic failure - critical for automotive load-dump and telecom lightning protection.
How does SMBG5379AE3/TR13 compare to the through-hole 1N5379B?
SMBG5379AE3/TR13 is the surface-mount DO-215AA equivalent of the axial-leaded 1N5379B, sharing identical electrical characteristics including 110 V Zener voltage, 12 mA IZM, and 125 Ω dynamic impedance. However, SMBG5379AE3/TR13 uses gull-wing leads for automated assembly, while 1N5379B requires through-hole mounting - making them functionally equivalent but not mechanically interchangeable.
What thermal resistance values apply to SMBG5379AE3/TR13?
SMBG5379AE3/TR13 has RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4 with 1 oz Cu and recommended pad layout). These values define its thermal behavior: at 5 W dissipation, junction temperature rises 125 °C above lead temperature, requiring adequate copper pour or heatsinking to maintain safe operation below 150 °C.
SMBG5379AE3/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)
SMBG5379AE3/TR13 FAQ
1.How can I place an order for SMBG5379AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5379AE3/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 SMBG5379AE3/TR13 reliable?
The price and inventory of SMBG5379AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5379AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5379AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5379AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5379AE3/TR13?
SMBG5379AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5379AE3/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 SMBG5379AE3/TR13?
For technical support, including SMBG5379AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5379AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5379AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5379AE3/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 SMBG5379AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5379AE3/TR13?
All SMBG5379AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5379AE3/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 SMBG5379AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5379AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5379AE3/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…
