My Inquiry
My Account
Microchip Technology SMBG5351CE3/TR13
- Part No.:
- SMBG5351CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5351CE3/TR13.pdf
- Description:
- DIODE ZENER 14V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,855
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5351CE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 14 V, ±2% tolerance (C suffix), rated test current of 100 mA, maximum dynamic impedance of 2.5 Ω at IZT, and maximum Zener current of 6.7 A - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5351CE3/TR13 datasheet, SMBG5351CE3/TR13 pinout, SMBG5351CE3/TR13 application, or SMBG5351CE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), surge current rating (IZSM = 6.7 A), and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device operates as a silicon planar Zener diode in reverse breakdown mode, delivering stable regulation across wide current (100 mA to 6.7 A) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation under load transients.
The DO-215AA gull-wing package provides visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - eliminating dry-pack requirements. Thermal resistance junction-to-lead is 25 °C/W, enabling reliable 5 W dissipation with adequate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14 V ±2% at 100 mA - enables tight regulation in feedback networks requiring <±200 mV error budget. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports continuous regulation in compact power supplies with thermal management. |
| Dynamic Impedance (ZZT) | 2.5 Ω max at 100 mA - minimizes output voltage deviation during line/load transients in closed-loop systems. |
| Max Surge Current (IZSM) | 6.7 A (8.3 ms half-sine) - withstands repetitive input surges without degradation in industrial power inputs. |
| Thermal Resistance (RθJL) | 25 °C/W - allows direct heat transfer to PCB copper, reducing need for external heatsinks in space-constrained designs. |
| Reverse Leakage (IR) | 1.0 µA max at 10.1 V - ensures negligible standby current in battery-backed or low-power monitoring circuits. |
| Junction Temp Range | –65 °C to +150 °C - qualified for automotive under-hood and industrial control environments. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; designed for visible solder joint inspection and high-density PCB layouts. Moisture sensitivity level 1 - no dry pack required prior to reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit ground or lower-potential rail; forms return path during Zener conduction. |
| Cathode | Zener breakdown terminal / regulated output node | Banded end; connected to voltage node requiring stabilization - e.g., feedback divider tap in SMPS. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5351B equivalent | Identical electrical specs and test methods - simplifies legacy design migration and second-source qualification. |
| RoHS-compliant matte-tin plating | e3 suffix confirms lead-free finish compliant with IPC-J-STD-006 and EU RoHS Directive 2011/65/EU. |
| Gull-wing lead form | Enables optical solder-joint inspection and reduces tombstoning risk during reflow on FR4 boards. |
| Level 1 moisture sensitivity | Zero bake requirement before assembly - lowers manufacturing cost and eliminates moisture-related delamination risk. |
| High IZM / low ZZT combination | Supports both precision regulation (low impedance) and robust surge handling (6.7 A) in single-device solutions. |
Applications
| Switch-Mode Power Supply Feedback | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or forward converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference node defining upper threshold of TL431-like shunt regulator feedback network. Use Value: ±2% VZ tolerance and 2.5 Ω ZZT ensure <±1% output voltage accuracy across line, load, and temperature. |
Use Scenario: Clamping transient overvoltages on DC bus lines in motor drives or solar inverters. IC Role / Device Role / Timing Role: Crowbar element absorbing energy from inductive kickback or lightning-induced surges. Use Value: 6.7 A non-repetitive surge rating and 5 W steady-state dissipation protect downstream MOSFETs and controllers. |
| Industrial Sensor Signal Conditioning | Programmable Logic Controller Input Protection |
Use Scenario: Providing stable 14 V reference for analog front-end amplifiers in 4–20 mA transmitter modules. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC biasing and excitation current generation. Use Value: Low temperature coefficient and 1.0 µA leakage at 10.1 V minimize drift and offset errors in millivolt-level measurements. |
Use Scenario: Protecting 24 V digital input channels against ESD and field-wiring faults in PLC backplanes. IC Role / Device Role / Timing Role: Primary clamping diode shunting fast transients before they reach input buffer ICs. Use Value: Non-sensitive to ESD per MIL-STD-750 Method 1020 and visible gull-wing leads enable post-assembly failure root-cause analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5351B | Same electrical specs, axial T-18 package; higher RθJA (150 °C/W), no RoHS compliance by default. | Requires through-hole mounting and manual soldering; unsuitable for high-density SMT production. | Select only for legacy repair or prototyping where footprint change is acceptable. |
| SMBJ5351B | Identical VZ, tolerance, and IZM; J-bend DO-214AA package; RθJL = 30 °C/W (vs. 25 °C/W). | Compatible with same PCB pad layout but requires different stencil aperture; slightly lower thermal performance. | Valid alternative if DO-214AA is already standardized in your SMT process and 5 °C/W thermal penalty is acceptable. |
Compared with SMBG5351CE3/TR13, 1N5351B demands board redesign and lacks RoHS compliance, while SMBJ5351B offers drop-in placement compatibility but trades 20% higher thermal resistance - making SMBG5351CE3/TR13 optimal for thermally constrained, high-volume RoHS-compliant designs.
Availability
SMBG5351CE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, overvoltage protection circuits, and industrial sensor signal conditioning requiring stable component supply and full traceability.
Supply support for SMBG5351CE3/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xxB series was engineered for precision voltage regulation in harsh-environment power systems - emphasizing thermal robustness, surge resilience, and JEDEC-compatibility for seamless integration into certified industrial and transportation equipment.
FAQ
What is the Zener voltage tolerance of SMBG5351CE3/TR13?
The SMBG5351CE3/TR13 has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its part number. This means its measured VZ falls within 13.72 V to 14.28 V when tested at 100 mA and 30 °C - critical for applications demanding tight regulation such as feedback references in medical-grade power supplies.
Does SMBG5351CE3/TR13 require dry packing before reflow soldering?
No, SMBG5351CE3/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it can be stored indefinitely at ambient conditions without baking. This eliminates pre-reflow dry-pack steps and reduces manufacturing overhead in high-volume SMT lines.
What is the maximum surge current rating for SMBG5351CE3/TR13?
The SMBG5351CE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 6.7 A, defined as an 8.3 ms half-sine waveform. This value is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0246-1 datasheet and supports robust protection in 24 V industrial control inputs.
Is SMBG5351CE3/TR13 RoHS compliant?
Yes, the "e3" suffix in SMBG5351CE3/TR13 explicitly indicates RoHS-compliant matte-tin plating per EU Directive 2011/65/EU and IPC-J-STD-006. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
How does the DO-215AA package of SMBG5351CE3/TR13 differ from DO-214AA?
The DO-215AA package uses gull-wing leads for visible solder joints and lower coplanarity risk, whereas DO-214AA uses J-bend leads. SMBG5351CE3/TR13's RθJL is 25 °C/W vs. 30 °C/W for the DO-214AA variant - offering superior thermal transfer to PCB copper in thermally demanding applications.
SMBG5351CE3/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):
- 14 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 10.1 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)
SMBG5351CE3/TR13 FAQ
1.How can I place an order for SMBG5351CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5351CE3/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 SMBG5351CE3/TR13 reliable?
The price and inventory of SMBG5351CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5351CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5351CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5351CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5351CE3/TR13?
SMBG5351CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5351CE3/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 SMBG5351CE3/TR13?
For technical support, including SMBG5351CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5351CE3/TR13 requirements.
6.How does Aetrix verify that SMBG5351CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5351CE3/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 SMBG5351CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5351CE3/TR13?
All SMBG5351CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5351CE3/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 SMBG5351CE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5351CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5351CE3/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…
