My Inquiry
My Account
Microchip Technology SMBG5374C/TR13
- Part No.:
- SMBG5374C/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5374C/TR13.pdf
- Description:
- DIODE ZENER 75V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,780
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5374C/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 75 V, ±2% tolerance (C suffix), 20 mA test current, and 63 Ω dynamic impedance at IZT. It regulates voltage in power supply feedback loops, overvoltage protection circuits, and reference voltage generation for industrial power converters.
For engineers reviewing the SMBG5374C/TR13 datasheet, SMBG5374C/TR13 pinout, SMBG5374C/TR13 application, or SMBG5374C/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (620 A), thermal resistance (25 °C/W junction-to-lead), and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device operates in reverse breakdown to maintain stable voltage across wide current (1–20 mA) and temperature (-65 to +150 °C) ranges. Its low dynamic impedance (63 Ω at 20 mA) ensures minimal voltage variation under load transients.
The DO-215AA gull-wing package enables 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, supporting reliable 5 W dissipation with adequate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 75 V ±2% at 20 mA - precise reference for feedback networks requiring tight regulation |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - supports high-energy clamping without heatsink when lead-temperature controlled |
| Dynamic Impedance (ZZT) | 63 Ω at IZT = 20 mA - low AC impedance improves ripple rejection in voltage references |
| Maximum Regulator Current (IZM) | 620 mA - enables robust operation under sustained overvoltage conditions |
| Surge Current (IZSM) | 620 A (8.3 ms half-sine) - withstands lightning-induced transients per IEC 61000-4-5 |
| Junction Temperature Range | -65 to +150 °C - suitable for automotive under-hood and industrial outdoor environments |
| Thermal Resistance (RθJL) | 25 °C/W - allows direct thermal path to PCB copper, simplifying thermal design |
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 compatible with standard reflow profiles (260 °C peak, 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias operation | Connected to regulated output node; polarity must be observed to avoid forward conduction |
| Anode | Reference/ground terminal | Typically tied to system ground or feedback divider low-side; forms return path for Zener current |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5374B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS-compliant matte-tin plating | Meets IPC-J-STD-020B Level 1 moisture sensitivity - no baking required before assembly |
| Gull-wing lead form | Enables optical solder-joint inspection and reduces tombstoning risk during reflow |
| High surge current rating | 620 A non-repetitive peak - protects downstream circuitry from transient overvoltages |
| Stable voltage vs. current | ≤2% VZ shift from 1 mA to IZM - maintains accuracy across operating range |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Used in TL431-based secondary-side feedback loop of 48 V telecom power supply to set output voltage. IC Role / Device Role / Timing Role: Precision voltage reference providing stable 75 V threshold for error amplifier comparison. Use Value: ±2% tolerance ensures output regulation within ±0.5% over line/load/temperature, meeting IEC 62368-1 requirements. |
Use Scenario: Placed across DC bus of motor drive inverter to clamp voltage spikes during IGBT switching transitions. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing 620 A surge energy without failure. Use Value: 620 A surge rating prevents catastrophic failure during repetitive 100 ns rise-time transients up to 100 kHz. |
| Programmable Reference Generator | Automotive Battery Monitoring |
Use Scenario: Paired with DAC and op-amp to generate adjustable 75 V reference for high-voltage sensor calibration equipment. IC Role / Device Role / Timing Role: Stable Zener element defining upper rail of precision reference ladder. Use Value: 63 Ω dynamic impedance minimizes DAC output loading error, enabling 16-bit effective resolution. |
Use Scenario: Monitors 72 V battery stack in commercial EV auxiliary systems, triggering disconnect at 85 V overvoltage. IC Role / Device Role / Timing Role: Primary overvoltage detection element in analog monitoring circuit. Use Value: -65 to +150 °C operating range ensures reliability in under-hood environments without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5374B | Same VZ, IZT, ZZT, and PD; axial T-18 package instead of DO-215AA | Requires through-hole assembly and larger board area; not suitable for high-density SMT layouts | Select when legacy through-hole manufacturing or manual prototyping is used |
| SMBJ5374C | Same electrical specs but DO-214AA (J-bend) package; RθJA = 90 °C/W vs. 25 °C/W junction-to-lead | Lower thermal performance limits continuous power to ~1.4 W on FR4; unsuitable for sustained 5 W operation | Select only for space-constrained boards where gull-wing leads are incompatible with mechanical layout |
Compared with SMBG5374C/TR13, 1N5374B offers identical regulation performance but requires PCB redesign for through-hole mounting, while SMBJ5374C sacrifices thermal capability for footprint reduction-neither is pin-compatible, and both demand layout validation for thermal and mechanical fit.
Availability
SMBG5374C/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive battery management systems, and programmable reference generators requiring stable component supply with full RoHS compliance and traceable sourcing.
Supply support for SMBG5374C/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 and mixed-signal components for aerospace, defense, and industrial markets.
The SMBG53xx series was designed specifically for surface-mount voltage regulation in high-density power systems where thermal performance, surge resilience, and JEDEC compatibility are critical.
FAQ
What is the Zener voltage tolerance of SMBG5374C/TR13?
The "C" suffix in SMBG5374C/TR13 specifies a ±2% Zener voltage tolerance at 20 mA test current. This yields a guaranteed VZ range of 73.5 V to 76.5 V under standard test conditions (TL = 25 °C), making SMBG5374C/TR13 suitable for precision reference applications where tighter regulation is required than ±5% (B suffix) or ±10% (A suffix) variants.
Can SMBG5374C/TR13 be used in place of 1N5374B?
Yes-SMBG5374C/TR13 is electrically equivalent to 1N5374B per Microsemi documentation, sharing identical VZ, IZT, ZZT, IZM, and surge ratings. However, SMBG5374C/TR13 uses a DO-215AA gull-wing package versus the axial T-18 package of 1N5374B, so PCB layout and assembly process must be updated to accommodate surface-mount placement and reflow soldering.
What is the maximum surge current rating for SMBG5374C/TR13?
SMBG5374C/TR13 has a non-repetitive peak surge current (IZSM) rating of 620 A for an 8.3 ms half-sine waveform, as specified in the Electrical Characteristics table. This value is measured under standardized transient conditions and reflects the device's ability to absorb high-energy transients without parametric shift or catastrophic failure-critical for input-stage protection in industrial power converters.
Does SMBG5374C/TR13 require dry packing before SMT assembly?
No-SMBG5374C/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. The DO-215AA package construction and void-free epoxy body eliminate moisture ingress risk, allowing direct use from reel in standard SMT lines.
How does the thermal resistance of SMBG5374C/TR13 affect its power handling?
SMBG5374C/TR13 has a junction-to-lead thermal resistance (RθJL) of 25 °C/W, enabling full 5 W power dissipation when the lead temperature (TL) is maintained below 25 °C-typically achieved using ≥1 in² of 1 oz copper connected to both terminals. On standard FR4 with recommended pad layout, RθJA is 90 °C/W, limiting ambient-rated power to ~1.38 W unless additional copper or thermal vias are added.
SMBG5374C/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):
- 75 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 54 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)
SMBG5374C/TR13 FAQ
1.How can I place an order for SMBG5374C/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5374C/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 SMBG5374C/TR13 reliable?
The price and inventory of SMBG5374C/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5374C/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5374C/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5374C/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5374C/TR13?
SMBG5374C/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5374C/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 SMBG5374C/TR13?
For technical support, including SMBG5374C/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5374C/TR13 requirements.
6.How does Aetrix verify that SMBG5374C/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5374C/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 SMBG5374C/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5374C/TR13?
All SMBG5374C/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5374C/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 SMBG5374C/TR13 part is unused and in its original packaging.
Return procedure for SMBG5374C/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5374C/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…
