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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology SMBG5356C/TR13

Name: SMBG5356C/TR13
Brand: Microchip Technology
SKU: SMBG5356C/TR13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMBG5356C/TR13

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-215AA, SMB Gull Wing

Datasheet:: SMBG5356C/TR13.pdf

Description:: DIODE ZENER 19V 5W DO214AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SMBG5356C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 19 V, ±2% tolerance (C suffix), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges, supports surge currents up to 5.3 A (8.3 ms half-sine), and is used in power supply overvoltage protection and reference circuits.

For engineers reviewing the SMBG5356C/TR13 datasheet, SMBG5356C/TR13 pinout, SMBG5356C/TR13 application, or SMBG5356C/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (R_θJL = 25 °C/W), maximum regulator current (IZM = 65 mA), and RoHS-compliant matte-tin plating.

Technical Context

This device operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its dynamic impedance is 3.0 Ω at I_ZT = 65 mA, and it exhibits minimal voltage drift versus current due to low Z_ZK (250 Ω @ 1.0 mA) and tight ±2% V_Z tolerance.

The SMBG5356C/TR13 uses a void-free UL94V-0 epoxy case with cathode band polarity marking and gull-wing leads solderable per MIL-STD-750 method 2026. It achieves IPC/JEDEC J-STD-020B moisture sensitivity level 1, eliminating dry-pack requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	19 V ±2% at I_ZT = 65 mA - ensures precise voltage clamping in reference and protection circuits.
Power Dissipation (P_D)	5.0 W at T_L < 25 °C - supports high-energy transient suppression when properly heatsinked.
Dynamic Impedance (Z_ZT)	3.0 Ω - maintains low voltage variation under changing load current near regulation point.
Max Regulator Current (I_ZM)	65 mA - defines safe DC operating limit for continuous regulation without thermal runaway.
Surge Current (I_ZSM)	5.3 A (8.3 ms half-sine) - withstands common AC line surges and ESD transients.
Thermal Resistance (R_θJL)	25 °C/W - enables efficient heat transfer from junction to lead, critical for reliability in compact layouts.
Reverse Leakage (I_R)	0.5 µA at V_R = 13.7 V - ensures negligible standby current in high-impedance bias networks.

Pinout & Package

DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end is positive during reverse-bias operation. Leads are RoHS-compliant matte-tin plated and solderable per MIL-STD-750 method 2026.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Non-banded terminal	Connected to lower-potential node in reverse-bias configuration; carries full regulator current during conduction.
Cathode	Banded terminal	Connected to higher-potential node; defines regulated output voltage referenced to anode potential.

Key Features

Feature	Design Value
JEDEC 1N5356B equivalent	Identical electrical characteristics and test methods to legacy through-hole 1N5356B, enabling drop-in replacement in upgraded designs.
±2% Zener tolerance (C suffix)	Enables tighter voltage control than ±5% (B) or ±10% (A) variants, reducing design margin overhead in precision references.
Gull-wing lead form (DO-215AA)	Provides visible solder joints for automated optical inspection (AOI) and improves mechanical reliability vs. J-bend packages.
Moisture Sensitivity Level 1	Eliminates baking requirement before reflow, simplifying SMT assembly and reducing process cost.
5.0 W power rating at lead temperature < 25 °C	Delivers higher sustained clamping energy than 1 W or 3 W Zeners, suitable for industrial-grade surge protection.

Applications

Power Supply Overvoltage Clamp	DC Reference Voltage Source
Use Scenario: Placed across output rail of switching power supply to clamp transient overvoltages exceeding 19 V. IC Role / Device Role / Timing Role: Passive voltage clamp protecting downstream regulators and microcontrollers from destructive voltage spikes. Use Value: Prevents latch-up or permanent damage by limiting peak voltage to 19.4 V (max V_Z + tolerance) with 5.3 A surge capability.	Use Scenario: Biased with constant current source to generate stable 19 V reference for ADC or DAC circuitry. IC Role / Device Role / Timing Role: Precision analog voltage reference providing low-drift, low-noise DC bias point. Use Value: Delivers ±2% initial accuracy and 3.0 Ω dynamic impedance, minimizing reference error under varying load conditions.
ESD Protection Network	Industrial Sensor Signal Conditioning
Use Scenario: Integrated into I/O port protection circuit alongside TVS diodes to absorb repetitive low-energy ESD events. IC Role / Device Role / Timing Role: Secondary clamping element handling residual energy after primary TVS conduction. Use Value: Withstands >1000 non-repetitive 8.3 ms surges per JEDEC standards, extending system-level ESD robustness.	Use Scenario: Used in 4–20 mA transmitter loop to regulate excitation voltage for resistive sensors (e.g., RTDs). IC Role / Device Role / Timing Role: Stable shunt regulator maintaining constant sensor bias despite supply fluctuations. Use Value: Maintains regulation across -65 to +150 °C ambient range with <0.5 µA leakage at 13.7 V, ensuring signal integrity in harsh environments.

Power Supply Overvoltage Clamp

DC Reference Voltage Source

Use Scenario: Placed across output rail of switching power supply to clamp transient overvoltages exceeding 19 V.

IC Role / Device Role / Timing Role: Passive voltage clamp protecting downstream regulators and microcontrollers from destructive voltage spikes.

Use Value: Prevents latch-up or permanent damage by limiting peak voltage to 19.4 V (max V_Z + tolerance) with 5.3 A surge capability.

Use Scenario: Biased with constant current source to generate stable 19 V reference for ADC or DAC circuitry.

IC Role / Device Role / Timing Role: Precision analog voltage reference providing low-drift, low-noise DC bias point.

Use Value: Delivers ±2% initial accuracy and 3.0 Ω dynamic impedance, minimizing reference error under varying load conditions.

ESD Protection Network

Industrial Sensor Signal Conditioning

Use Scenario: Integrated into I/O port protection circuit alongside TVS diodes to absorb repetitive low-energy ESD events.

IC Role / Device Role / Timing Role: Secondary clamping element handling residual energy after primary TVS conduction.

Use Value: Withstands >1000 non-repetitive 8.3 ms surges per JEDEC standards, extending system-level ESD robustness.

Use Scenario: Used in 4–20 mA transmitter loop to regulate excitation voltage for resistive sensors (e.g., RTDs).

IC Role / Device Role / Timing Role: Stable shunt regulator maintaining constant sensor bias despite supply fluctuations.

Use Value: Maintains regulation across -65 to +150 °C ambient range with <0.5 µA leakage at 13.7 V, ensuring signal integrity in harsh environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5356B	Through-hole DO-41 package; identical V_Z, I_ZT, and Z_ZT; no RoHS compliance by default.	Requires PCB through-hole mounting; unsuitable for high-density SMT layouts.	Select when legacy board reuse or manual prototyping is required; not recommended for new SMT designs.
SMBJ5356B	J-bend DO-214AA package; same V_Z and power rating but higher R_θJA (100 °C/W vs. 90 °C/W); ±5% tolerance.	Lower thermal performance in still-air conditions; less precise voltage regulation.	Choose only if DO-214AA footprint is fixed; verify thermal margin with FR4 board layout.

Compared with SMBG5356C/TR13, the 1N5356B requires through-hole assembly and lacks RoHS compliance, while SMBJ5356B offers inferior thermal resistance and looser voltage tolerance-making SMBG5356C/TR13 optimal for high-density, precision, and compliant SMT applications.

Availability

SMBG5356C/TR13 is available at Aetrix Electronics and suitable for power supply protection, precision voltage reference, and industrial sensor conditioning requiring stable component supply and RoHS-compliant manufacturing.

Supply support for SMBG5356C/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.

The SMBG53xx series targets surface-mount Zener regulation needs where precision, surge resilience, and manufacturability are critical-especially in power conversion and ruggedized electronics.

FAQ

What is the Zener voltage tolerance for SMBG5356C/TR13?

The "C" suffix in SMBG5356C/TR13 specifies a ±2% Zener voltage tolerance at I_ZT = 65 mA and T_L = 30 °C. This yields a guaranteed V_Z range of 18.62 V to 19.38 V, tighter than ±5% (B) or ±10% (A) variants, supporting higher-accuracy regulation in reference and protection circuits.

Does SMBG5356C/TR13 require dry packing before reflow soldering?

No. SMBG5356C/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level 1, meaning it is not hygroscopic enough to require dry packing or baking prior to reflow. This simplifies SMT assembly and reduces process risk compared to level 2a or higher components.

What is the maximum surge current rating for SMBG5356C/TR13?

SMBG5356C/TR13 is rated for a non-repetitive peak surge current (I_ZSM) of 5.3 A, defined as the maximum value of an 8.3 ms half-sine waveform. This rating enables reliable suppression of common-mode transients in industrial power rails and communication interfaces.

How does the DO-215AA package of SMBG5356C/TR13 differ from DO-214AA?

The DO-215AA gull-wing package of SMBG5356C/TR13 provides visible solder joints for AOI and better mechanical strength than the J-bend leads of DO-214AA (used in SMBJ5356B). Its R_θJL is 25 °C/W, offering superior thermal transfer to PCB copper compared to DO-214AA's typical R_θJA of 100 °C/W.

Is SMBG5356C/TR13 compatible with lead-free reflow profiles?

Yes. SMBG5356C/TR13 features RoHS-compliant matte-tin plating and is rated for solder temperature up to 260 °C for 10 seconds, fully compatible with standard lead-free reflow profiles (e.g., JEDEC J-STD-020 Class 3A). No special preheat or cooling ramp adjustments are needed.

SMBG5356C/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):: 19 V

Tolerance:: ±2%

Power - Max:: 5 W

Impedance (Max) (Zzt):: 3 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 13.7 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)

SMBG5356C/TR13 FAQ

1.How can I place an order for SMBG5356C/TR13 through Aetrix?

Please submit a Request for Quotation (RFQ) for SMBG5356C/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 SMBG5356C/TR13 reliable?

The price and inventory of SMBG5356C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5356C/TR13 is usually 5 days.

3.What payment methods are accepted for SMBG5356C/TR13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5356C/TR13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMBG5356C/TR13?

SMBG5356C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMBG5356C/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 SMBG5356C/TR13?

For technical support, including SMBG5356C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5356C/TR13 requirements.

6.How does Aetrix verify that SMBG5356C/TR13 is sourced from the original manufacturer or authorized distributors?

All SMBG5356C/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 SMBG5356C/TR13 meets industry standards.

7.What is the process for return or replacement of SMBG5356C/TR13?

All SMBG5356C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5356C/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 SMBG5356C/TR13 part is unused and in its original packaging.

Return procedure for SMBG5356C/TR13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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