My Inquiry
My Account
Microchip Technology SMBG5348BE3/TR13
- Part No.:
- SMBG5348BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5348BE3/TR13.pdf
- Description:
- DIODE ZENER 11V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5348BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 11 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across broad current and temperature ranges in power supply reference and overvoltage protection circuits.
For engineers reviewing the SMBG5348BE3/TR13 datasheet, SMBG5348BE3/TR13 pinout, SMBG5348BE3/TR13 application, or SMBG5348BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current rating (8.0 A), thermal resistance (90 °C/W on FR4), and JEDEC 1N5348B compatibility for legacy design migration.
Technical Context
This device operates as a precision voltage reference in reverse-biased mode, maintaining stable 11 V regulation at 125 mA test current (IZT) with dynamic impedance of 2.5 Ω. Its Zener knee occurs at 1.0 mA with ZZK ≤ 430 Ω, enabling reliable low-current regulation.
Designed for high-surge environments, it withstands non-repetitive 8.3 ms half-sine surges up to 8.0 A (IZSM) and exhibits minimal voltage drift versus current due to low dynamic impedance. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V ±5% at 125 mA - defines precise regulation point for feedback loops and reference rails. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports robust thermal margin in compact layouts with adequate heat sinking. |
| Dynamic Impedance (ZZT) | 2.5 Ω at IZT = 125 mA - ensures tight voltage stability under varying load currents. |
| Max Surge Current (IZSM) | 8.0 A (8.3 ms half-sine) - provides transient overvoltage clamping without failure. |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu) - determines maximum ambient temperature for safe continuous operation. |
| Reverse Leakage (IR) | 5.0 µA at VR = 8.0 V - guarantees low standby power loss in high-impedance bias networks. |
| Junction Temperature Range | –65 °C to +150 °C - enables deployment in automotive under-hood and industrial control environments. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; anode and cathode terminals only. Designed for visible solder joint inspection and high-density PCB placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes polarity for reverse-bias operation. |
| Cathode | Regulated output node | Banded end; supplies stable 11 V when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5348B equivalence | Identical electrical characteristics and testing - enables drop-in replacement in legacy through-hole designs migrated to SMT. |
| RoHS-compliant matte-tin plating | Meets lead-free assembly requirements without compromising solderability or intermetallic reliability. |
| Level 1 moisture sensitivity | No dry pack or baking required before reflow - reduces manufacturing handling cost and risk of popcorning. |
| Gull-wing lead form | Enables visual solder joint inspection and accommodates standard SMT reflow profiles per IPC-J-STD-020. |
| High surge current capability | 8.0 A non-repetitive surge rating - protects downstream circuitry from lightning-induced or inductive-switching transients. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference Rail |
|---|---|
Use Scenario: Stabilizing error amplifier reference in isolated flyback or forward converter feedback networks. IC Role / Device Role / Timing Role: Precision voltage reference for optocoupler-coupled feedback loop. Use Value: 11 V Zener voltage matches common TL431-based compensation thresholds while providing higher surge immunity than IC references. |
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Low-drift DC reference source for ADC front-end biasing. Use Value: ±5% tolerance and <2.5 Ω dynamic impedance ensure <0.1% reference error across –40 °C to +85 °C operating range. |
| Overvoltage Clamp for CAN Transceivers | Microcontroller I/O Protection |
Use Scenario: Clamping transients on CAN_H/CAN_L lines during ESD or load-dump events. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting bus voltage to 11 V peak. Use Value: 8.0 A surge rating absorbs IEC 61000-4-5 Level 3 surges without degradation, preserving signal integrity. |
Use Scenario: Protecting GPIO pins of ARM Cortex-M microcontrollers against accidental 12 V miswiring. IC Role / Device Role / Timing Role: Primary overvoltage clamp on I/O rail. Use Value: Low leakage (<5 µA) avoids loading sensitive inputs; gull-wing package allows easy routing near dense BGA footprints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5348BRLG | Same 11 V ±5%, 5 W rating but in axial DO-204AL (T-18) package; no RoHS e3 marking. | Requires through-hole mounting; unsuitable for high-density SMT boards. | Select when upgrading legacy T-18 designs where board real estate is not constrained. |
| SMBJ5348B | Same electrical specs but in DO-214AA (J-bend) package; RθJA = 100 °C/W vs. 90 °C/W for SMBG5348BE3/TR13. | Lower thermal performance on FR4; requires larger copper area for equivalent power handling. | Choose when existing footprint uses SMBJ-style pads and thermal margin exceeds 10 °C/W requirement. |
Compared with 1N5348BRLG and SMBJ5348B, SMBG5348BE3/TR13 delivers superior thermal resistance (90 °C/W), RoHS compliance, and gull-wing visibility for automated optical inspection - making it optimal for new SMT designs requiring JEDEC-compatible 11 V regulation with production-ready manufacturability.
Availability
SMBG5348BE3/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, CAN bus protection circuits, and microcontroller I/O protection requiring stable component supply and full traceability.
Supply support for SMBG5348BE3/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 to deliver JEDEC-identical 5 W Zener performance in surface-mount gull-wing packaging - bridging legacy through-hole reliability with modern SMT manufacturing efficiency.
FAQ
What is the Zener voltage tolerance for SMBG5348BE3/TR13?
The "B" suffix in SMBG5348BE3/TR13 indicates a ±5% Zener voltage tolerance, meaning the actual breakdown voltage falls between 10.45 V and 11.55 V at 125 mA test current and 25 °C junction temperature. This tolerance is verified per JEDEC 1N5348B specifications and applies across the full operating temperature range of –65 °C to +150 °C.
Does SMBG5348BE3/TR13 require dry packing before reflow soldering?
No, SMBG5348BE3/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 desiccant or dry packing. This eliminates pre-reflow baking steps and reduces manufacturing risk of popcorn cracking during reflow.
What is the maximum surge current rating for SMBG5348BE3/TR13?
SMBG5348BE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 8.0 A, defined as the maximum amplitude of an 8.3 ms half-sine waveform. This rating is validated per MIL-STD-750 Method 3013 and supports robust transient suppression in automotive and industrial power line applications.
How does the DO-215AA package of SMBG5348BE3/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5348BE3/TR13 features straight, outward-bent leads enabling visual solder joint inspection and lower profile than the J-bend DO-214AA used in SMBJ5348B. Thermal resistance is 90 °C/W vs. 100 °C/W for DO-214AA on identical FR4 layout, giving SMBG5348BE3/TR13 a 10 °C/W thermal advantage.
Is SMBG5348BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5348BE3/TR13 carries the "e3" suffix denoting RoHS-compliant annealed matte-tin plating, qualified for standard lead-free reflow profiles up to 260 °C peak temperature for 10 seconds. Its void-free epoxy body meets UL94V-0 flammability rating and withstands multiple reflow cycles without degradation.
SMBG5348BE3/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):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 8 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)
SMBG5348BE3/TR13 FAQ
1.How can I place an order for SMBG5348BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5348BE3/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 SMBG5348BE3/TR13 reliable?
The price and inventory of SMBG5348BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5348BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5348BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5348BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5348BE3/TR13?
SMBG5348BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5348BE3/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 SMBG5348BE3/TR13?
For technical support, including SMBG5348BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5348BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5348BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5348BE3/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 SMBG5348BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5348BE3/TR13?
All SMBG5348BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5348BE3/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 SMBG5348BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5348BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5348BE3/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…
