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Microchip Technology SMAJ16CAE3/TR13
- Part No.:
- SMAJ16CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16CAE3/TR13.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,392
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Product details
Overview
SMAJ16CAE3/TR13 from Microsemi is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in DO-214AC (SMA) package, rated for 500 W peak pulse power at 10/1000 µs, with 16 V reverse standoff voltage (VWM), 17.8 V minimum breakdown voltage (VBR), and 28.8 V maximum clamping voltage (VC) at 17.6 A peak pulse current - used for IEC61000-4-5 secondary lightning protection in industrial power supplies and telecom interfaces.
For engineers reviewing the SMAJ16CAE3/TR13 datasheet, SMAJ16CAE3/TR13 pinout, SMAJ16CAE3/TR13 application, or SMAJ16CAE3/TR13 equivalent, key selection criteria include bidirectional clamping capability, RoHS-compliant matte-tin plating, 100 ps theoretical response time, compatibility with automated SMT assembly, and compliance with IEC61000-4-2/4-4/4-5 transient immunity standards.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal lines without polarity constraints. Its low clamping ratio (VC/VBR ≈ 1.62) and sub-5 ns clamping response ensure minimal overvoltage exposure to downstream ICs during fast transients.
Designed for surface-mount reliability on FR4 PCBs with 1 oz copper, it delivers 15 °C/W junction-to-lead thermal resistance and supports steady-state dissipation of 5 W at lead temperature (TL) = 75 °C. The device meets MIL-PRF-19500 screening options when prefixed with MX, and avionics-grade screening with MA prefix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working range for 12–15 V nominal DC bus protection. |
| VBR min @ IBR | 17.8 V @ 1 mA - Minimum voltage at which device enters avalanche breakdown; ensures reliable triggering above system operating voltage. |
| VC @ IPP | 28.8 V @ 17.6 A - Clamped voltage during 10/1000 µs surge; limits stress on protected 24 V logic or interface ICs to safe levels. |
| PPP | 500 W - Peak pulse power handling capacity; supports robust protection against IEC61000-4-5 Class 4 (12 Ω source) surges. |
| IPP | 17.6 A - Peak surge current at VC; corresponds to 4 kV/2 kA IEC61000-4-5 test level with 42 Ω source impedance. |
| ID @ VWM | <1 µA - Reverse leakage current at 16 V; negligible standby power loss and no measurable loading on 16 V reference or bias rails. |
| TJ Range | −65 °C to +150 °C - Full operational temperature envelope; validated for under-hood automotive and industrial control environments. |
Pinout & Package
DO-214AC (SMA) package: surface-mount, void-free thermosetting epoxy body (UL94V-0), C-bend leads with RoHS-compliant annealed matte-tin plating, cathode band omitted for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient shunt path | Either terminal serves as input or return; enables AC line or differential pair protection without orientation dependency. |
| Case / Body | Thermal and mechanical mounting surface | Provides primary heat path to PCB copper; requires recommended pad layout (2.57–2.79 mm width, 4.93–5.48 mm length) for thermal derating compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of balanced analog signals, RS-485 buses, and AC power inputs without polarity-sensitive placement. |
| RoHS-compliant "e3" suffix | Meets EU Directive 2011/65/EU with annealed matte-tin plating; eliminates lead-based solder compatibility concerns in modern SMT lines. |
| IEC61000-4-5 Class 4 rating | Validated for 4 kV surge immunity with 12 Ω source impedance - suitable for industrial Ethernet ports and PLC I/O modules. |
| Sub-5 ns clamping response | Minimizes voltage overshoot during ESD (IEC61000-4-2) and EFT (IEC61000-4-4) events, preserving integrity of high-speed microcontrollers and FPGAs. |
| Tape-and-reel packaging (TR13) | 2500 units per 13-inch reel per EIA-481-1-A; optimized for high-volume pick-and-place assembly with standard feeder compatibility. |
Applications
| Industrial Power Input Protection | RS-485 Communication Port |
|---|---|
|
Use Scenario: 24 V DC power rail feeding programmable logic controllers exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional shunt clamp that diverts surge energy to ground before it reaches DC-DC converters and MCU power rails. Use Value: Limits transient overvoltage to ≤28.8 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic powered from the same rail. |
Use Scenario: Differential data lines in factory-floor RS-485 networks subject to cable-induced surges and ground potential differences. IC Role / Device Role / Timing Role: Symmetric voltage clamp placed across A/B lines to suppress common-mode and differential transients without disrupting DC bias. Use Value: Maintains signal integrity by clamping transients within 5 ns while adding <1 pF capacitance per line - no data rate degradation up to 10 Mbps. |
| Automotive Body Control Module | AC-DC Adapter Surge Interface |
|
Use Scenario: 12 V battery-supplied BCM circuits exposed to ISO 7637-2 pulse 1/2a/3a and secondary lightning per IEC61000-4-5. IC Role / Device Role / Timing Role: Primary front-end TVS on power entry, coordinated with fuse and LC filter to meet AEC-Q101 stress requirements. Use Value: Withstands −65 °C to +150 °C operation and passes 10× thermal cycling (−55 °C to +125 °C) when screened with MA prefix. |
Use Scenario: Secondary-side output of isolated AC-DC adapters powering IoT gateways, where output surges may couple into low-voltage logic rails. IC Role / Device Role / Timing Role: Final-stage clamp on 5 V/12 V output, absorbing residual transients that bypass primary-side MOVs and Y-capacitors. Use Value: Provides 500 W surge margin with only 1 µA leakage, eliminating standby power penalty and ensuring UL/EN62368-1 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA | No "e3" RoHS suffix; uses SnPb plating instead of matte-tin; identical electrical specs and DO-214AC package. | Not compliant with EU RoHS Directive 2011/65/EU; unsuitable for new designs targeting CE marking or export to regulated markets. | Select SMAJ16CA only for legacy repair or non-RoHS production environments where SnPb soldering remains in use. |
| SMBJ16CAE3 | Same VWM, VBR, VC, but 600 W PPP rating in larger DO-214AA (SMB) package; 20% higher IPP (21.0 A). | Higher surge margin suits high-energy industrial motor drives; requires larger PCB footprint and different reflow profile due to mass difference. | Choose SMBJ16CAE3 when system-level testing reveals marginal margin with SMAJ16CAE3/TR13 under repetitive surge stress. |
Compared with SMAJ16CA and SMBJ16CAE3, SMAJ16CAE3/TR13 offers optimal balance of RoHS compliance, 500 W surge capability, and compact DO-214AC footprint - making it ideal for space-constrained, high-volume industrial and telecom designs requiring certified environmental compliance.
Availability
SMAJ16CAE3/TR13 is available at Aetrix Electronics and suitable for industrial power input protection, RS-485 communication port hardening, automotive body control module design, and AC-DC adapter surge interface applications requiring stable component supply and full RoHS traceability.
Supply support for SMAJ16CAE3/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 robust, surface-mount transient suppression in harsh environments - delivering fast-response, high-power clamping in compact packages for mission-critical power and interface protection.
FAQ
What does the "CA" suffix indicate in SMAJ16CAE3/TR13?
The "CA" suffix denotes a bidirectional configuration - meaning SMAJ16CAE3/TR13 provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This distinguishes it from unidirectional variants like SMAJ16AE3/TR13, which require correct anode/cathode orientation and only clamp in one direction.
Is SMAJ16CAE3/TR13 compatible with lead-free reflow processes?
Yes, SMAJ16CAE3/TR13 features RoHS-compliant annealed matte-tin plating and is rated for solder temperatures up to 260 °C for 10 seconds - fully compatible with standard IPC/JEDEC J-STD-020B lead-free reflow profiles used in modern SMT assembly lines.
What IEC standards does SMAJ16CAE3/TR13 meet for surge protection?
SMAJ16CAE3/TR13 is verified for IEC61000-4-2 (ESD ±8 kV contact), IEC61000-4-4 (EFT ±2 kV), and IEC61000-4-5 (lightning surge up to 4 kV with 12 Ω source impedance, Class 4). Its 28.8 V clamping voltage ensures protected circuits remain within safe operating limits during all three test conditions.
How does the "TR13" suffix affect packaging and ordering of SMAJ16CAE3/TR13?
The "TR13" suffix indicates tape-and-reel packaging: 2500 units per 13-inch reel conforming to EIA-481-1-A standards. This format enables direct integration into automated pick-and-place equipment and supports high-volume manufacturing without manual handling or static risks associated with bulk or tube packaging.
Can SMAJ16CAE3/TR13 be used in automotive applications?
Yes - SMAJ16CAE3/TR13 operates from −65 °C to +150 °C and supports optional avionics-grade screening (MA prefix) including 10× thermal cycling and HTRB testing. While not AEC-Q200 qualified out-of-box, it is widely deployed in automotive body control modules when paired with appropriate system-level validation per ISO 7637-2 and IEC61000-4-5.
SMAJ16CAE3/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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 19.2A
- 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)
SMAJ16CAE3/TR13 FAQ
1.How can I place an order for SMAJ16CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16CAE3/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 SMAJ16CAE3/TR13 reliable?
The price and inventory of SMAJ16CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ16CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ16CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16CAE3/TR13?
SMAJ16CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16CAE3/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 SMAJ16CAE3/TR13?
For technical support, including SMAJ16CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ16CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ16CAE3/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 SMAJ16CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ16CAE3/TR13?
All SMAJ16CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16CAE3/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 SMAJ16CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ16CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ16CAE3/TR13 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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