My Inquiry
My Account
STMicroelectronics SMA6J100A-TR
- Part No.:
- SMA6J100A-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J100A-TR.pdf
- Description:
- TVS DIODE 100VWM 172VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:7,339
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J100A-TR from STMicroelectronics is a unidirectional 600 W transient voltage suppression (TVS) diode in SMA package, designed for IEC 61000-4-2 ESD protection (30 kV contact/air) and IEC 61000-4-4 surge immunity (4 kV level 4). It features 100 V standoff voltage (VRM), 134 V clamping voltage at 4.6 A (8/20 µs), and operates up to +175 °C junction temperature. Used in DC power rail protection for industrial sensors and telecom interfaces.
For engineers reviewing the SMA6J100A-TR datasheet, SMA6J100A-TR pinout, SMA6J100A-TR application, or SMA6J100A-TR equivalent, this page delivers verified electrical specs, JEDEC DO-214AC package details, thermal derating curves, leakage behavior across temperature, and validated alternatives for overvoltage protection design.
Technical Context
This unidirectional TVS diode uses planar silicon technology to achieve low leakage (0.2 µA @ 25 °C, 1 µA @ 85 °C) and high thermal stability up to Tj = +175 °C. Its dynamic resistance (RD = 3.29 Ω) and clamping performance are characterized for both 10/1000 µs (600 W) and 8/20 µs (4 kW) transients.
The device complies with J-STD-020 MSL Level 1, UL94 V0 resin, and IPC7531 footprint standards. It is rated for 260 °C soldering (10 s) and meets MIL-STD-750 method 2026 for matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 100 V - Maximum continuous reverse operating voltage before breakdown begins. |
| Breakdown Voltage (VBR min) | 110 V at 1 mA - Ensures reliable triggering above normal operating voltage with margin. |
| Clamping Voltage (VCL) | 134 V at 4.6 A (8/20 µs) - Limits transient voltage seen by downstream circuitry during surge events. |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustains standard lightning-surge energy without failure under defined waveform. |
| Leakage Current (IRM) | 0.2 µA @ 25 °C - Minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| Junction Temperature Range | –55 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2) - Exceeds level 4 requirements for robust human-body-model immunity. |
Pinout & Package
The SMA6J100A-TR is housed in a JEDEC DO-214AC (SMA) surface-mount package with two terminals: cathode (marked band) and anode. The package conforms to IPC7531 footprint and features matte tin-plated leads compliant with JESD-22-B102 E3 and MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR. |
| Anode | Reference node | Typically tied to system ground or lower-potential rail; completes conduction path during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Low leakage current | 0.2 µA @ 25 °C ensures minimal loading on high-impedance signal lines and battery-powered circuits. |
| High junction temperature rating | +175 °C operation supports placement near heat sources (e.g., power converters) without derating. |
| JEDEC DO-214AC compliance | Standardized mechanical outline enables automated placement and reflow compatibility per J-STD-020 MSL Level 1. |
| UL94 V0 resin encapsulation | Flame-retardant housing meets safety requirements for industrial and telecom end-equipment certifications. |
| ESD and surge dual-certification | Validated for IEC 61000-4-2 (30 kV) and IEC 61000-4-4 (4 kV level 4), reducing need for secondary protection stages. |
Applications
| Industrial Sensor Interface | Telecom DC Power Input |
|---|---|
|
Use Scenario: Protecting 24 V analog sensor outputs (e.g., 4–20 mA loop transmitters) from induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp fast transients while preserving DC accuracy. Use Value: 134 V clamping ensures downstream op-amps and ADCs remain below absolute maximum ratings during 1 kV ring-wave tests. |
Use Scenario: Safeguarding 48 V DC input of PoE-powered network switches against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converter input stage. Use Value: 600 W (10/1000 µs) rating handles typical telecom surge waveforms without degradation after repeated events. |
| Automotive Body Control Module | Smart Meter Power Supply |
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and ISO 7637-2 pulse 1/2a transients. IC Role / Device Role / Timing Role: Localized TVS on each LIN line, leveraging low leakage to avoid interfering with 19.2 kbps signaling integrity. Use Value: 175 °C max junction temperature allows mounting directly on PCB near MCU without thermal derating penalties. |
Use Scenario: Securing AC/DC adapter output rails in utility smart meters exposed to grid switching transients and EFT bursts. IC Role / Device Role / Timing Role: Secondary surge suppressor after primary MOV, providing precise clamping and low capacitance (<100 pF). Use Value: 30 kV ESD rating eliminates field failures from handling during meter installation and maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J100AHE3_A/H | Same electrical specs; halogen-free, RoHS-compliant variant with identical DO-214AC package. | No functional difference; selected when environmental compliance (e.g., WEEE, China RoHS) is mandatory. | Prefer for new designs targeting global regulatory alignment without layout or thermal impact. |
| SMCJ100A | Higher 1500 W (10/1000 µs) rating in larger DO-214AB (SMC) package; VBR = 111 V min, VCL = 165 V @ 9.1 A. | Used where higher surge energy tolerance is required, but requires PCB area increase and thermal redesign. | Choose only if system-level testing shows 600 W insufficient; otherwise, SMA6J100A-TR offers better board density and cost. |
Compared with SMA6J100AHE3_A/H, the -TR version offers identical protection performance with standard RoHS compliance; versus SMCJ100A, it trades surge headroom for compactness and lower thermal mass-critical for space-constrained 24–48 V industrial modules.
Availability
SMA6J100A-TR is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom DC power inputs, automotive body control modules, and smart meter power supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMA6J100A-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering intelligent power, sensing, and connectivity solutions for automotive, industrial, and consumer markets.
The SMA6J series belongs to ST's transient protection portfolio, engineered specifically for high-reliability, high-temperature ESD and surge suppression in space-constrained, mission-critical applications.
FAQ
What is the maximum clamping voltage of SMA6J100A-TR under an 8/20 µs surge?
The maximum clamping voltage is 134 V at 4.6 A for an 8/20 µs waveform, measured per IEC 61000-4-5 test conditions. This value is guaranteed across the full operating temperature range (–55 °C to +175 °C) and defines the peak voltage imposed on protected circuitry during transient events.
Does SMA6J100A-TR require derating at elevated ambient temperatures?
Yes - its peak pulse power capability decreases with rising junction temperature. At 125 °C initial Tj, the 10/1000 µs PPP drops to ~420 W (per Figure 3 in DS5142), requiring layout-level thermal management (e.g., copper pour, thermal vias) to maintain performance in high-temperature environments.
Can SMA6J100A-TR be used in bidirectional signal lines?
No - SMA6J100A-TR is unidirectional and conducts only in reverse bias. For bidirectional protection (e.g., RS-485, USB D+/D–), the SMA6J100CA-TR variant must be used, which provides symmetrical clamping in both polarities with identical VRM and VCL characteristics.
Is the SMA6J100A-TR compatible with lead-free reflow processes?
Yes - it is qualified for lead-free soldering per J-STD-020 MSL Level 1, with a maximum peak reflow temperature of 245 °C (240–245 °C recommended) and ramp rates specified in ST's ECOPACK profile. The matte tin finish ensures reliable wetting and intermetallic formation without whisker risk.
SMA6J100A-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 172V
- Current - Peak Pulse (10/1000µs):
- 19A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J100A-TR FAQ
1.How can I place an order for SMA6J100A-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J100A-TR 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 SMA6J100A-TR reliable?
The price and inventory of SMA6J100A-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J100A-TR is usually 5 days.
3.What payment methods are accepted for SMA6J100A-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J100A-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J100A-TR?
SMA6J100A-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J100A-TR 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 SMA6J100A-TR?
For technical support, including SMA6J100A-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J100A-TR requirements.
6.How does Aetrix verify that SMA6J100A-TR is sourced from the original manufacturer or authorized distributors?
All SMA6J100A-TR 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 SMA6J100A-TR meets industry standards.
7.What is the process for return or replacement of SMA6J100A-TR?
All SMA6J100A-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J100A-TR, 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 SMA6J100A-TR part is unused and in its original packaging.
Return procedure for SMA6J100A-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J100A-TR Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
