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Microchip Technology SMAJ100CAE3/TR13
- Part No.:
- SMAJ100CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ100CAE3/TR13.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,276
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Product details
Overview
SMAJ100CAE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for robust ESD, EFT, and secondary lightning surge protection in DC power rails and signal lines. It features a 100 V standoff voltage (VWM), 111 V minimum breakdown voltage (VBR), 179 A peak pulse current (IPP @ 10/1000 µs), 162 V clamping voltage (VC), and 500 W peak pulse power dissipation - deployed in telecom power supplies, industrial I/O modules, and automotive body control units.
For engineers reviewing the SMAJ100CAE3/TR13 datasheet, SMAJ100CAE3/TR13 pinout, SMAJ100CAE3/TR13 application, or SMAJ100CAE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, IEC61000-4-2/4-4/4-5 compliance, DO-214AC package thermal performance, and RoHS-compliant matte-tin terminations with tape-and-reel delivery (TR13).
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its <100 ps theoretical response time (unidirectional) and <5 ns for bidirectional operation ensures sub-nanosecond suppression of fast transients like ESD contact discharge.
The device uses an avalanche diode structure housed in a void-free UL94V-0 epoxy case with C-bend leads, delivering 15 °C/W junction-to-lead thermal resistance when soldered to FR4 with recommended footprint - critical for sustaining repetitive 500 W surges at 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse working voltage before clamping begins; sets operating margin above nominal 90–100 V DC rail voltages. |
| VBR min | 111 V @ IBR = 1 mA - guaranteed avalanche onset threshold; ensures reliable triggering above system overvoltage tolerances. |
| VC @ IPP | 162 V @ 179 A (10/1000 µs) - clamped voltage during worst-case surge; defines maximum stress imposed on downstream ICs. |
| PPP | 500 W - peak pulse power handling capacity; supports IEC61000-4-5 Class 1 (42 Ω source) protection up to 100 V systems. |
| IPP | 179 A - maximum non-destructive surge current; enables protection against induced lightning surges per IEC61000-4-5. |
| TJ range | −65 °C to +150 °C - extended temperature rating suitable for under-hood automotive and industrial environments. |
| Package | DO-214AC (SMA) - standardized surface-mount outline with 1.70–2.26 mm body width and 3.99–4.50 mm length; compatible with automated SMT placement. |
Pinout & Package
DO-214AC (SMA) package: surface-mount, bidirectional construction with no polarity marking; thermally optimized wide leads for low junction-to-lead resistance (15 °C/W) and high surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No cathode band marking; identical electrical behavior in either direction - enables single-component protection of AC or floating nodes. |
| Lead 1 / Lead 2 | Surge current path to PCB ground plane | C-bend (modified J-bend) matte-tin plated leads; support 260 °C soldering for 10 s and provide low-inductance path to shunt transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of differential pairs, AC lines, or ungrounded interfaces without polarity concerns. |
| IEC61000-4-5 Class 1 compliance | Validated for secondary lightning protection with 42 Ω source impedance up to 100 V systems - meets industrial PLC backplane requirements. |
| RoHS-compliant "e3" termination | Matte-tin plating per MIL-STD-750 Method 2026 ensures lead-free solder compatibility and long-term intermetallic stability. |
| 500 W peak pulse rating | Supports high-energy transients from inductive switching (e.g., solenoid drivers) while maintaining low clamping voltage margin. |
| Moisture sensitivity Level 1 | No dry-pack required per IPC/JEDEC J-STD-020B - simplifies handling and eliminates bake-out prior to reflow. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC power inputs in variable-frequency drives exposed to inductive kickback from contactors and relays. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rails to clamp negative-going and positive-going transients before they reach DC-DC converters and gate drivers. Use Value: Limits rail voltage excursions to ≤162 V during 179 A surges, preventing latch-up or destruction of 36 V-rated MOSFETs and microcontrollers. | Use Scenario: Surge protection on LIN bus lines and sensor supply rails in door module ECUs subjected to load dump and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing IEC61000-4-2 ±8 kV contact discharge and IEC61000-4-5 0.5 kV line-to-ground surges. Use Value: Clamps transients within <5 ns to protect 5 V CAN/LIN transceivers and analog sensor front-ends without signal distortion. |
| Telecom Power Rectifiers | Medical Diagnostic Equipment Interfaces |
Use Scenario: Secondary-side overvoltage protection in 48 V telecom rectifier outputs feeding base station RF amplifiers. IC Role / Device Role / Timing Role: Bidirectional TVS installed between +48 V output and chassis ground to suppress lightning-induced common-mode surges. Use Value: Withstands 500 W pulses at 100 V standoff while maintaining 162 V clamping - preserves integrity of GaN FETs rated for 65 V max drain-source. | Use Scenario: ESD safeguarding of isolated analog front-ends in portable ultrasound probes connected via flexible cable harnesses. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS on differential ultrasound transducer bias lines to prevent electrostatic damage during handling. Use Value: Delivers <5 ns response and 162 V clamping without adding signal path capacitance that would degrade 1–15 MHz echo bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5A (Vishay) | Unidirectional; 100 V VWM, 111 V VBR, 162 V VC @ 179 A - identical clamping but polarity-sensitive. | Requires explicit anode/cathode orientation; unsuitable for AC or floating nodes without series diodes. | Select only if circuit topology enforces fixed polarity and layout allows directional placement. |
| P6SMB100CA (ON Semiconductor) | Same DO-214AA package; 100 V VWM, 111 V VBR, 165 V VC @ 175 A - 3 V higher clamping, 4 A lower IPP. | Marginally lower surge rating; validated for IEC61000-4-5 Class 2 (42 Ω) but not Class 1 at full rating. | Acceptable for cost-sensitive designs where 3 V clamping margin and 4 A IPP reduction are acceptable. |
Compared with SMAJ100CAE3/TR13, the Vishay SMAJ100A-E3/5A requires strict polarity alignment and lacks bidirectional flexibility, while the ON Semiconductor P6SMB100CA trades 3 V higher clamping and 4 A lower surge current for broader commercial availability - making SMAJ100CAE3/TR13 optimal for polarity-agnostic, high-reliability industrial surge protection.
Availability
SMAJ100CAE3/TR13 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power rectifiers requiring stable component supply with full traceability and RoHS compliance.
Supply support for SMAJ100CAE3/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 (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 SMAJ series was engineered for ruggedized transient suppression in harsh environments - emphasizing low clamping voltage, repeatable surge endurance, and extended temperature operation beyond commercial-grade alternatives.
FAQ
What is the clamping voltage of SMAJ100CAE3/TR13 at its rated peak pulse current?
The SMAJ100CAE3/TR13 has a maximum clamping voltage (VC) of 162 V when subjected to its rated 179 A peak pulse current (10/1000 µs waveform). This value is measured per standard test conditions defined in the Microsemi datasheet and represents the upper limit of voltage seen by protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMAJ100CAE3/TR13 suitable for IEC61000-4-5 Class 1 lightning surge protection?
Yes, SMAJ100CAE3/TR13 is explicitly rated for IEC61000-4-5 Class 1 secondary lightning protection with a 42 Ω source impedance, covering the full SMAJ5.0–100CA family per the manufacturer's specification table. Its 500 W peak pulse power and 179 A IPP enable it to safely clamp 0.5–1.0 kV surges on 100 V DC systems without degradation - verified through standardized surge testing protocols.
Does SMAJ100CAE3/TR13 have polarity markings, and how does that affect board layout?
No, SMAJ100CAE3/TR13 is a bidirectional TVS and carries no cathode band or polarity marking on its DO-214AC package. This allows symmetrical placement on PCBs - eliminating orientation constraints during automated assembly and enabling use on AC-coupled, differential, or floating signal paths without risk of reverse installation. Layout requires only two pads matching the standard SMA footprint.
What is the thermal resistance and steady-state power rating of SMAJ100CAE3/TR13?
SMAJ100CAE3/TR13 has a junction-to-lead thermal resistance of 15 °C/W and delivers 5 W steady-state power dissipation at lead temperature (TL) of 75 °C. When mounted on FR4 with 1 oz copper and the recommended pad layout, its junction-to-ambient resistance is 80 °C/W, supporting 1.56 W at 25 °C ambient - sufficient for leakage-limited standby dissipation but not continuous DC power handling.
How does the "TR13" suffix in SMAJ100CAE3/TR13 impact ordering and packaging?
"TR13" indicates tape-and-reel packaging per EIA-481-1-A standard on a 13-inch reel containing 2500 units, with 12 mm carrier tape width. This format is optimized for high-volume SMT assembly lines, ensuring consistent pick-and-place feed reliability. The "e3" denotes RoHS-compliant matte-tin terminations, and the "CA" confirms bidirectional configuration - all encoded directly in the full part number SMAJ100CAE3/TR13.
SMAJ100CAE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.1A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ100CAE3/TR13 FAQ
1.How can I place an order for SMAJ100CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ100CAE3/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 SMAJ100CAE3/TR13 reliable?
The price and inventory of SMAJ100CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ100CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ100CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ100CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ100CAE3/TR13?
SMAJ100CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ100CAE3/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 SMAJ100CAE3/TR13?
For technical support, including SMAJ100CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ100CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ100CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ100CAE3/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 SMAJ100CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ100CAE3/TR13?
All SMAJ100CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ100CAE3/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 SMAJ100CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ100CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ100CAE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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