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Microchip Technology SMBG5350AE3/TR13
- Part No.:
- SMBG5350AE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5350AE3/TR13.pdf
- Description:
- DIODE ZENER 13V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,840
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Product details
Overview
SMBG5350AE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 13 V, ±10% tolerance (A suffix), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 7.0 A (8.3 ms half-sine), and operates from –65 °C to +150 °C junction temperature - used in power supply overvoltage clamping and reference stabilization.
For engineers reviewing the SMBG5350AE3/TR13 datasheet, SMBG5350AE3/TR13 pinout, SMBG5350AE3/TR13 application, or SMBG5350AE3/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), maximum regulator current (IZM = 7.0 mA at VZM = 14.3 V), and RoHS-compliant matte-tin plating per MIL-STD-750.
Technical Context
This device functions as a precision voltage reference and transient suppressor in DC power rails, leveraging sharp Zener breakdown at 13 V with low dynamic impedance (ZZT = 2.5 Ω at IZT = 100 mA). Its DO-215AA gull-wing leads enable visible solder joints and high-density PCB placement without J-bend rework.
It exhibits minimal voltage drift versus current (ΔVZ/ΔIZ < 0.01 V/mA typical) and withstands non-repetitive surges up to 7.0 A per 8.3 ms half-sine waveform. Moisture sensitivity level is IPC/JEDEC Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±10% at IZT = 100 mA - defines stable regulation point for 12 V rail protection and reference circuits. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management on FR4 board; derates linearly above 25 °C per Figure 1. |
| Dynamic Impedance (ZZT) | 2.5 Ω at IZT = 100 mA - ensures tight voltage regulation under varying load current conditions. |
| Max Regulator Current (IZM) | 7.0 mA - calculated as PD/VZM = 5.0 W / 14.3 V; sets upper limit for continuous Zener biasing. |
| Surge Current (IZSM) | 7.0 A (8.3 ms half-sine) - enables robust transient suppression in automotive and industrial power inputs. |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in extended-temperature environments including engine control units. |
| Thermal Resistance (RθJL) | 25 °C/W - indicates efficient heat transfer from junction to lead; critical for thermal design with copper pour. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode only. Polarity: banded end is cathode - device operated with cathode negative relative to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reference ground node in reverse-bias regulation | Connected to system ground or low-side return path; must handle full surge current during clamping events. |
| Cathode | Current exit terminal in forward bias; regulated output node in reverse-bias mode | Connected to protected rail (e.g., 12 V input); voltage clamped to 13 V ±10% when exceeding VZ. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5350B equivalent | Identical electrical characteristics and test methods - enables drop-in replacement in legacy designs using axial 1N5350B. |
| RoHS-compliant matte-tin plating | Meets MIL-STD-750 Method 2026 solderability - eliminates lead concerns while maintaining reflow compatibility at 260 °C/10 s. |
| Gull-wing lead geometry | DO-215AA footprint enables visual solder inspection and reduces tombstoning risk vs. J-bend packages like DO-214AA. |
| Level 1 moisture sensitivity | No dry pack or baking required before reflow - simplifies manufacturing logistics and reduces handling cost. |
| High surge current rating | 7.0 A non-repetitive peak - provides single-event protection against ISO 7637-2 pulse 1/2a/5a transients in automotive ECUs. |
Applications
| Automotive Power Input Protection | Industrial DC-DC Reference Stabilization |
|---|---|
Use Scenario: 12 V battery-fed ECU input subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Voltage clamp protecting downstream LDOs and microcontrollers from >35 V transients. Use Value: Limits rail voltage to ≤14.3 V (VZM) with 7.0 A surge capability - prevents latch-up and gate oxide damage. |
Use Scenario: Precision 12 V-to-5 V DC-DC converter feedback loop requiring stable reference under variable load. IC Role / Device Role / Timing Role: Shunt reference providing fixed 13 V node for error amplifier bias and divider ratio stability. Use Value: 2.5 Ω ZZT minimizes output voltage drift (<±15 mV) across 10–100 mA load changes. |
| Telecom Line Card Overvoltage Clamp | Medical Equipment Power Rail Guarding |
Use Scenario: -48 V telecom power distribution with accidental polarity reversal or hot-swap inrush. IC Role / Device Role / Timing Role: Reverse-polarity protector and transient suppressor on primary DC input stage. Use Value: Withstands 260 °C soldering and operates down to –65 °C - suitable for outdoor cabinet deployments. |
Use Scenario: Isolated 24 V auxiliary supply in patient-connected devices requiring fail-safe voltage limiting. IC Role / Device Role / Timing Role: Secondary-side shunt limiter preventing >14.3 V exposure to analog front-end circuitry. Use Value: Level 1 moisture classification eliminates bake-out - critical for cleanroom assembly and regulatory traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5350B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZSM; RθJA = 120 °C/W (vs. 90 °C/W for SMBG). | Requires through-hole mounting and larger board area; less suitable for high-density SMT production. | Select when legacy through-hole assembly or manual prototyping is required; not recommended for new SMT designs. |
| SMBJ5350B | DO-214AA J-bend package; same VZ, IZT, ZZT; RθJL = 30 °C/W (vs. 25 °C/W); no gull-wing visual inspection advantage. | Higher thermal resistance limits sustained power handling; J-bend leads increase rework difficulty vs. gull-wing. | Acceptable where DO-214AA footprint exists; prefer SMBG5350AE3/TR13 for improved thermal performance and process yield. |
Compared with 1N5350B and SMBJ5350B, SMBG5350AE3/TR13 delivers superior thermal transfer (RθJL = 25 °C/W), gull-wing manufacturability, and RoHS compliance - making it optimal for new automotive and industrial SMT designs requiring long-term supply stability and IPC-compliant assembly.
Availability
SMBG5350AE3/TR13 is available at Aetrix Electronics and suitable for automotive power input protection, industrial DC-DC reference stabilization, and telecom line card overvoltage clamping requiring stable component supply, consistent RoHS compliance, and JEDEC-verified Zener performance.
Supply support for SMBG5350AE3/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 SMBG53xx series was designed specifically for surface-mount Zener regulation in harsh-environment power systems - emphasizing thermal robustness, surge resilience, and JEDEC-compatibility for drop-in upgrades from legacy 1N53xx parts.
FAQ
What is the Zener voltage tolerance of SMBG5350AE3/TR13?
The 'A' suffix in SMBG5350AE3/TR13 denotes ±10% Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 11.7 V and 14.3 V at IZT = 100 mA and TL = 25 °C. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 °C to +150 °C. SMBG5350AE3/TR13 maintains this specification under specified thermal mounting conditions.
Is SMBG5350AE3/TR13 RoHS compliant?
Yes, SMBG5350AE3/TR13 is RoHS compliant, as indicated by the 'e3' suffix in its part number. It features annealed matte-tin plating per MIL-STD-750 Method 2026 and meets all substance restrictions under Directive 2011/65/EU. The device is rated for 260 °C soldering at 10 s and carries IPC/JEDEC moisture sensitivity Level 1 - no dry pack required prior to reflow.
What is the maximum continuous Zener current for SMBG5350AE3/TR13?
The maximum continuous regulator current (IZM) for SMBG5350AE3/TR13 is 7.0 mA, calculated as PD/VZM = 5.0 W / 14.3 V. This value assumes operation at lead temperature TL < 25 °C; derating applies above that temperature per the power derating curve in Figure 1. SMBG5350AE3/TR13 must be mounted on FR4 with recommended pad layout to sustain this rating.
How does SMBG5350AE3/TR13 compare to the axial 1N5350B?
SMBG5350AE3/TR13 matches 1N5350B electrically - same VZ, IZT, ZZT, IZSM, and test methodology - but uses DO-215AA gull-wing packaging instead of T-18 axial leads. SMBG5350AE3/TR13 offers lower RθJL (25 °C/W vs. 120 °C/W), surface-mount compatibility, and RoHS compliance. It is intended as a direct SMT upgrade path for 1N5350B-based designs.
What is the surge current rating of SMBG5350AE3/TR13 and how is it defined?
SMBG5350AE3/TR13 has a non-repetitive peak surge current (IZSM) of 7.0 A, defined per Note 4 as the maximum peak of an 8.3 ms half-sine waveform. This rating is validated under standardized test conditions and reflects capability to absorb transient energy without parametric shift or failure. SMBG5350AE3/TR13 sustains this rating when mounted per recommended footprint on FR4 with 1 oz copper.
SMBG5350AE3/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):
- 13 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.4 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)
SMBG5350AE3/TR13 FAQ
1.How can I place an order for SMBG5350AE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5350AE3/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 SMBG5350AE3/TR13 reliable?
The price and inventory of SMBG5350AE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5350AE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5350AE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5350AE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5350AE3/TR13?
SMBG5350AE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5350AE3/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 SMBG5350AE3/TR13?
For technical support, including SMBG5350AE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5350AE3/TR13 requirements.
6.How does Aetrix verify that SMBG5350AE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5350AE3/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 SMBG5350AE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5350AE3/TR13?
All SMBG5350AE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5350AE3/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 SMBG5350AE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5350AE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5350AE3/TR13 Tags
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