My Inquiry
My Account
Microchip Technology SMBG5381BE3/TR13
- Part No.:
- SMBG5381BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5381BE3/TR13.pdf
- Description:
- DIODE ZENER 130V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,943
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG5381BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 130 V, ±5% tolerance (B suffix), 10 mA test current, 190 Ω dynamic impedance at IZT, and 1.2 A maximum surge current (8.3 ms half-sine). It regulates voltage in power supply overvoltage protection circuits operating across -65°C to +150°C junction temperature.
For engineers reviewing the SMBG5381BE3/TR13 datasheet, SMBG5381BE3/TR13 pinout, SMBG5381BE3/TR13 application, or SMBG5381BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJL = 25°C/W), surge current rating, moisture sensitivity level (MSL Level 1), and RoHS-compliant matte-tin plating.
Technical Context
This device operates as a precision voltage reference and shunt regulator in DC power rails, clamping transient overvoltages by conducting reverse current above its specified VZ. Its DO-215AA gull-wing package enables visible solder joints and supports high-density PCB layouts without dry-pack requirements.
It delivers stable regulation under broad current ranges (IZK = 10 mA, IZM = 36.6 mA) with minimal voltage drift versus temperature (TJ = –65°C to +150°C) and low dynamic impedance (ZZT = 190 Ω), ensuring predictable clamping behavior during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 130 V ±5% at 10 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 5.0 W at TL < 25°C - requires thermal management via lead conduction (RθJL = 25°C/W) |
| Dynamic Impedance (ZZT) | 190 Ω at 10 mA - determines voltage deviation under varying load current |
| Max Surge Current (IZSM) | 1.2 A (8.3 ms half-sine) - withstands short-duration transients per IEC 61000-4-5 |
| Reverse Leakage (IR) | 0.5 µA at 104 V - ensures low standby power loss in high-impedance bias networks |
| Junction Temp Range | –65°C to +150°C - supports operation in automotive under-hood and industrial environments |
| Moisture Sensitivity | Level 1 per J-STD-020B - no baking required before reflow, simplifying SMT assembly |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode (unbanded end) and cathode (banded end); polarity must be observed for correct shunt regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; establishes reference for Zener conduction |
| Cathode | Regulated output node | Banded terminal; connected to protected rail; conducts when voltage exceeds 130 V |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5381B Equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| RoHS Compliant Matte-Tin Plating | e3 suffix confirms annealed tin finish meeting IPC-J-STD-006 - supports Pb-free reflow profiles |
| Gull-Wing Leads (DO-215AA) | Visible solder joints and mechanical stability - improves post-reflow inspection and reliability |
| MSL Level 1 Rating | No dry pack or baking needed - reduces manufacturing overhead and avoids moisture-induced defects |
| High Surge Withstand (1.2 A) | Rated for 8.3 ms half-sine waveform - protects downstream circuitry against lightning-induced surges |
Applications
| DC Power Supply Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamps 130 V rail during input surge or regulator failure in 48 V telecom power systems. IC Role / Device Role / Timing Role: Shunt regulator providing fail-safe overvoltage protection. Use Value: Prevents damage to downstream DC-DC converters rated for ≤135 V absolute maximum. |
Use Scenario: Stabilizes excitation voltage for strain-gauge bridges in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage reference enabling ratiometric measurement accuracy. Use Value: Maintains <±0.5% output drift over –40°C to +85°C ambient due to low tempco Zener structure. |
| Automotive Body Control Module | Programmable Logic Controller Input Protection |
Use Scenario: Suppresses load-dump transients on 12 V battery-fed microcontroller I/O lines in BCMs. IC Role / Device Role / Timing Role: Transient voltage suppressor (TVS) with regulated clamping action. Use Value: Limits peak voltage to 130 V ±5%, staying within ISO 7637-2 Pulse 5a limits. |
Use Scenario: Protects 24 V digital input channels from field-wiring induced surges in PLC backplanes. IC Role / Device Role / Timing Role: Primary shunt clamp on isolated input stage. Use Value: Survives repeated 1.2/50 µs surges up to 1.2 A thanks to 5 W power rating and robust DO-215AA package. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5381B | Same VZ, IZT, ZZT, and PD; axial T-18 package instead of DO-215AA | Requires through-hole assembly; unsuitable for high-density SMT boards | Select when legacy through-hole design or manual repair is prioritized over board space savings |
| SMBJ5381B | Same VZ and tolerance; DO-214AA (J-bend) package; RθJA = 100°C/W vs. 90°C/W for SMBG | Higher thermal resistance limits sustained power handling on FR4; identical surge rating | Choose when existing footprint uses DO-214AA or when slightly higher RθJA is acceptable in thermally managed layouts |
Compared with SMBG5381BE3/TR13, 1N5381B offers identical regulation but mandates through-hole mounting, while SMBJ5381B shares the same Zener characteristics but trades gull-wing visibility and marginally better thermal performance for J-bend compatibility.
Availability
SMBG5381BE3/TR13 is available at Aetrix Electronics and suitable for DC power supply protection, industrial sensor signal conditioning, and automotive body control module applications requiring stable component supply, full RoHS compliance, and MSL Level 1 handling.
Supply support for SMBG5381BE3/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 SMBG53xxB series targets surface-mount voltage regulation in harsh-environment power systems where precision, surge resilience, and assembly simplicity are critical.
FAQ
What is the Zener voltage tolerance and test current for SMBG5381BE3/TR13?
The SMBG5381BE3/TR13 has a Zener voltage of 130 V with ±5% tolerance (denoted by the 'B' suffix) and is tested at 10 mA (IZT). This tolerance ensures the actual breakdown voltage falls between 123.5 V and 136.5 V under standard conditions, supporting reliable overvoltage clamping in safety-critical power rails where SMBG5381BE3/TR13 is deployed.
Does SMBG5381BE3/TR13 require dry packing before reflow soldering?
No, SMBG5381BE3/TR13 is rated MSL Level 1 per IPC/JEDEC J-STD-020B, meaning it has no moisture sensitivity limitations and can be placed directly into reflow without baking or dry-pack storage. This simplifies manufacturing logistics and eliminates risk of popcorning during SMBG5381BE3/TR13 assembly.
What is the maximum surge current rating for SMBG5381BE3/TR13 and its waveform definition?
SMBG5381BE3/TR13 is rated for a maximum non-repetitive surge current (IZSM) of 1.2 A, defined as the peak value of an 8.3 ms half-sine waveform. This rating reflects its ability to absorb transient energy without degradation, making SMBG5381BE3/TR13 suitable for IEC 61000-4-5 compliant surge protection stages.
How does the DO-215AA package of SMBG5381BE3/TR13 differ from DO-214AA in thermal performance?
The DO-215AA gull-wing package of SMBG5381BE3/TR13 provides a lower thermal resistance junction-to-lead (RθJL = 25°C/W) compared to DO-214AA variants like SMBJ5381B (RθJL ≈ 30°C/W), enabling more efficient heat conduction through PCB copper. This enhances SMBG5381BE3/TR13's sustained power capability in compact layouts.
Is SMBG5381BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5381BE3/TR13 features RoHS-compliant annealed matte-tin plating (e3 suffix) and is qualified for standard Pb-free reflow profiles, including peak temperatures up to 260°C for 10 seconds. Its DO-215AA package and internal construction ensure robustness during SMBG5381BE3/TR13 soldering without delamination or parametric shift.
SMBG5381BE3/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):
- 130 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 190 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 93.6 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)
SMBG5381BE3/TR13 FAQ
1.How can I place an order for SMBG5381BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5381BE3/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 SMBG5381BE3/TR13 reliable?
The price and inventory of SMBG5381BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5381BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5381BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5381BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5381BE3/TR13?
SMBG5381BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5381BE3/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 SMBG5381BE3/TR13?
For technical support, including SMBG5381BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5381BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5381BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5381BE3/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 SMBG5381BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5381BE3/TR13?
All SMBG5381BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5381BE3/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 SMBG5381BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5381BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5381BE3/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…
