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Microchip Technology SMBG5342BE3/TR13
- Part No.:
- SMBG5342BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5342BE3/TR13.pdf
- Description:
- DIODE ZENER 6.8V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,427
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Product details
Overview
SMBG5342BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 6.8 V, ±5% tolerance (B suffix), 175 mA test current (IZT), 1.0 Ω dynamic impedance (ZZT), and DO-215AA gull-wing package. It regulates voltage in power supply feedback loops, overvoltage protection circuits, and reference voltage generation under broad temperature and current ranges.
For engineers reviewing the SMBG5342BE3/TR13 datasheet, SMBG5342BE3/TR13 pinout, SMBG5342BE3/TR13 application, or SMBG5342BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (11.5 A IZSM), thermal resistance (25 °C/W junction-to-lead), RoHS compliance (e3 suffix), and gull-wing solder joint visibility for automated optical inspection.
Technical Context
This device operates as a reverse-biased voltage reference with sharp breakdown knee at 6.8 V, specified at 175 mA test current. Its low dynamic impedance (1.0 Ω) ensures minimal voltage variation across load current changes, and its 11.5 A non-repetitive surge current rating supports transient overvoltage clamping per MIL-STD-750 method 3015.
The DO-215AA gull-wing package provides visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity-no dry pack required. Thermal resistance junction-to-lead is 25 °C/W, enabling stable regulation up to +150 °C junction temperature when properly heat-sinked on FR4 with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V ±5% at 175 mA - defines precise regulation point for feedback networks |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management above ambient |
| Dynamic Impedance (ZZT) | 1.0 Ω at 175 mA - ensures <6.8 mV output shift per 1 mA load change |
| Surge Current (IZSM) | 11.5 A (8.3 ms half-sine) - clamps ESD and lightning-induced transients |
| Junction Temperature Range | –65 °C to +150 °C - supports industrial and automotive under-hood operation |
| Reverse Leakage (IR) | 10 µA max at 5.2 V - guarantees low quiescent current in standby modes |
| Thermal Resistance (RθJL) | 25 °C/W - enables direct thermal path to PCB copper for heatsinking |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Designed for visible solder joint inspection and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse bias | Connected to regulated output node; polarity must be observed to avoid forward conduction |
| Anode | Negative terminal in reverse bias | Connected to ground or lower-potential rail; forms reference return path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5342B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating (e3) | Lead-free assembly compatible with Pb-free reflow profiles up to 260 °C for 10 s |
| Level 1 moisture sensitivity | No dry pack or baking required before SMT - reduces manufacturing overhead |
| Gull-wing lead form | Enables AOI verification of solder fillet geometry - improves process yield control |
| High IZM (700 mA) | Supports sustained regulation at full 5 W with adequate heatsinking - avoids thermal runaway |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to maintain ±1% output regulation across line/load/temperature. IC Role / Device Role / Timing Role: Zener reference providing stable 6.8 V threshold for TL431 or shunt regulator IC biasing. Use Value: Low ZZT (1.0 Ω) minimizes output voltage drift during transient load steps, improving dynamic regulation performance. | Use Scenario: Provides precision bias voltage for analog front-end amplifiers in 4–20 mA current-loop transmitters operating from 24 V rails. IC Role / Device Role / Timing Role: Voltage reference stabilizing op-amp common-mode input range and ADC reference divider network. Use Value: ±5% VZ tolerance and –65 °C to +150 °C operation ensure calibration stability across extended industrial temperature range. |
| Overvoltage Clamp Protection | Programmable Threshold Detector |
Use Scenario: Placed across microcontroller I/O pins or CAN bus lines to clamp ESD and inductive switching spikes below absolute maximum ratings. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting peak reverse voltage to 6.8 V during fast-rising surges. Use Value: 11.5 A IZSM rating handles 8.3 ms half-sine surges per IEC 61000-4-5 Level 3 without degradation. | Use Scenario: Configured with resistor divider to trigger comparator when input exceeds 12 V threshold in battery monitoring systems. IC Role / Device Role / Timing Role: Precision voltage threshold element setting trip point for undervoltage/overvoltage detection logic. Use Value: Tight 6.8 V ±5% tolerance enables accurate 12 V setpoint with minimal external component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5342B | Same VZ, IZT, ZZT, and PD; axial T-18 package instead of DO-215AA | Requires through-hole assembly; not suitable for high-density SMT production | Select when legacy through-hole design or manual prototyping is preferred |
| SMBJ5342B | Identical electrical specs; DO-214AA J-bend package instead of DO-215AA gull-wing | Different footprint and solder joint geometry; requires PCB layout revision | Select when existing DO-214AA land pattern is standardized and gull-wing inspection is not required |
Compared with SMBG5342BE3/TR13, 1N5342B offers identical regulation performance but mandates through-hole assembly, while SMBJ5342B retains SMT compatibility at the cost of different mechanical mounting and optical inspection capability.
Availability
SMBG5342BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and overvoltage protection circuits requiring stable component supply, RoHS compliance, and gull-wing manufacturability.
Supply support for SMBG5342BE3/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 designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding environments where gull-wing visibility and JEDEC equivalence matter.
FAQ
What is the Zener voltage tolerance for SMBG5342BE3/TR13?
The "B" suffix in SMBG5342BE3/TR13 denotes ±5% Zener voltage tolerance. At 25 °C, this means the measured VZ falls between 6.46 V and 7.14 V when tested at 175 mA. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 °C to +150 °C, making SMBG5342BE3/TR13 suitable for applications requiring moderate precision without trimming.
Does SMBG5342BE3/TR13 require dry packing before reflow soldering?
No, SMBG5342BE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. The DO-215AA epoxy body is void-free and thermosetting, eliminating moisture ingress risk during standard Pb-free reflow profiles up to 260 °C for 10 seconds - a key advantage over higher-level MSL components.
How does the gull-wing lead form of SMBG5342BE3/TR13 benefit automated assembly?
The gull-wing leads of SMBG5342BE3/TR13 enable full optical inspection of solder fillets during AOI (automated optical inspection), unlike J-bend or flat-lead packages. This allows real-time detection of bridging, insufficient solder, or misalignment - critical for high-reliability power regulation circuits where latent solder defects could cause field failures. The visible joint geometry also simplifies first-article inspection and process validation.
What is the maximum continuous Zener current for SMBG5342BE3/TR13 at 75 °C ambient?
At 75 °C ambient on an FR4 board with recommended footprint, SMBG5342BE3/TR13 derates to approximately 2.78 W (per Figure 1 power derating curve), yielding a maximum continuous Zener current of ~409 mA (2.78 W ÷ 6.8 V). This assumes adequate copper area for heat spreading; actual IZM depends on PCB thermal design and airflow - always verify junction temperature using RθJA = 90 °C/W and RθJL = 25 °C/W paths.
Is SMBG5342BE3/TR13 compatible with lead-free reflow processes?
Yes, SMBG5342BE3/TR13 carries the "e3" suffix indicating RoHS-compliant matte-tin plating, qualified for Pb-free reflow per J-STD-020. It withstands peak temperatures up to 260 °C for 10 seconds without degradation. The gull-wing geometry also promotes uniform wetting and reduces tombstoning risk compared to smaller SMD diodes, making SMBG5342BE3/TR13 robust in high-volume lead-free manufacturing.
SMBG5342BE3/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):
- 6.8 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 1 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 4.9 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)
SMBG5342BE3/TR13 FAQ
1.How can I place an order for SMBG5342BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5342BE3/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 SMBG5342BE3/TR13 reliable?
The price and inventory of SMBG5342BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5342BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5342BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5342BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5342BE3/TR13?
SMBG5342BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5342BE3/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 SMBG5342BE3/TR13?
For technical support, including SMBG5342BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5342BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5342BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5342BE3/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 SMBG5342BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5342BE3/TR13?
All SMBG5342BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5342BE3/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 SMBG5342BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5342BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5342BE3/TR13 Tags
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