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Microchip Technology SMAJ8.0CAE3/TR13
- Part No.:
- SMAJ8.0CAE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ8.0CAE3/TR13.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,080
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Product details
Overview
SMAJ8.0CAE3/TR13 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for ESD, EFT, and secondary lightning surge protection in DC power rails and signal lines. It features 8.0 V reverse standoff voltage (VWM), 8.89 V minimum breakdown voltage (VBR), 15.0 V maximum clamping voltage (VC) at 33.3 A peak pulse current, and 500 W peak pulse power rating per 10/1000 µs waveform - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the SMAJ8.0CAE3/TR13 datasheet, SMAJ8.0CAE3/TR13 pinout, SMAJ8.0CAE3/TR13 application, or SMAJ8.0CAE3/TR13 equivalent, key selection criteria include bidirectional clamping behavior, 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, delivering sub-5 ns response time to clamp transients before sensitive downstream circuitry sustains damage. Its silicon avalanche structure ensures stable VBR tolerance (±5%) and low leakage (<1 μA at VWM), enabling reliable operation in high-impedance monitoring paths.
The device meets IEC61000-4-5 Class 4 (12 Ω source) and Class 1 (42 Ω source) secondary lightning immunity when applied with proper PCB layout and grounding. Thermal resistance is specified at 15 °C/W junction-to-lead, supporting sustained 5 W steady-state dissipation at 75 °C lead temperature on FR4 with recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 9–12 V systems. |
| VBR min @ IBR | 8.89 V @ 1 mA - Minimum avalanche onset voltage; ensures predictable turn-on without premature triggering. |
| VC @ IPP | 15.0 V @ 33.3 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPP | 500 W - Peak pulse power handling capability; supports robust protection against repetitive surges in harsh environments. |
| ID @ VWM | <1 μA - Ultra-low standby leakage; preserves battery life and avoids false trips in low-power sensor circuits. |
| Package | DO-214AC (SMA) - Industry-standard surface-mount outline with wide leads for thermal dissipation and mechanical reliability. |
| RoHS | e3 suffix - Lead-free matte-tin plating compliant with JEDEC J-STD-020B Level 1 moisture sensitivity; no dry pack required. |
Pinout & Package
DO-214AC (SMA) package: molded thermosetting epoxy case (UL94V-0), C-bend tin-plated terminals, cathode band omitted (bidirectional symmetry). Weight: 0.064 g. Moisture sensitivity level: Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | No polarity marking; either terminal serves as input or return path - enables flexible placement on differential or single-ended lines. |
| Case / Body | Thermal conduction path | Direct thermal coupling to PCB copper pour via wide lead frames; supports 15 °C/W junction-to-lead thermal resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VC = 15.0 V in both directions - eliminates need for polarity-aware routing in AC-coupled or floating interfaces. |
| IEC61000-4-5 compliance | Validated for Class 4 (12 Ω source) up to 12 V systems - meets stringent automotive and industrial surge immunity requirements. |
| Fast response time | <5 ns turn-on - intercepts ESD events faster than typical CMOS input protection diodes, reducing latch-up risk. |
| Tape-and-reel packaging | TR13 suffix - 2500 units per 13-inch reel per EIA-481-1-A; optimized for automated SMT placement with 12 mm carrier tape. |
| Steady-state power rating | 5 W @ TL = 75 °C - enables use in continuously powered protection zones without derating concerns under normal thermal conditions. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver bias rails from load dump and inductive switching spikes on 12 V vehicle buses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, absorbing energy before it reaches ESD-hardened IC inputs. Use Value: Maintains VC ≤ 15.0 V during 33.3 A surges, ensuring downstream logic remains within absolute maximum ratings per ISO 16750-2. |
Use Scenario: Shielding 24 V digital input optocouplers from field-wire induced transients in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge shunt located at connector entry point, diverting >90% of 10/1000 µs energy to ground before reaching isolation barrier. Use Value: Enables compliance with IEC61000-4-4 Level 4 (4 kV EFT) and IEC61000-4-5 Level 3 (2 kV, 42 Ω source) without additional RC filtering. |
| Medical Patient Monitor Interface | Telecom Power Supply Output |
Use Scenario: Safeguarding isolated analog front-end sensors connected to patient-contact electrodes from ESD discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) bidirectional clamp on differential sensor lines, preserving signal integrity while blocking transients. Use Value: Prevents baseline shift or saturation in instrumentation amplifiers by limiting common-mode surge voltage to ≤15.0 V peak. |
Use Scenario: Secondary-side overvoltage suppression on +5 V and +3.3 V outputs of telecom DC/DC converters exposed to hot-swap transients. IC Role / Device Role / Timing Role: Final-stage TVS placed immediately after output filter capacitor, clamping fast-rising overshoot from regulator instability. Use Value: Guarantees VC ≤ 15.0 V even at full 33.3 A surge, protecting downstream ASICs rated for 16 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | Same electrical specs but non-RoHS (SnPb terminations); no e3 suffix; identical DO-214AC package and TR13 reel option. | Restricted to legacy aerospace or avionics programs requiring MIL-PRF-19500 JANTX screening (MX prefix available). | Select SMAJ8.0CA only if SnPb assembly process or legacy qualification is mandated; otherwise prefer RoHS-compliant SMAJ8.0CAE3/TR13. |
| SMBJ8.0CA-E3/52 | Higher 600 W PPP, same VWM/VC, but SMB (DO-214AA) package - 2.5× larger thermal mass and 20% higher mounting area. | Better thermal endurance in high-duty-cycle surge environments; requires PCB redesign due to larger footprint and different pad layout. | Choose SMBJ8.0CA-E3/52 only when system-level testing reveals insufficient thermal margin with SMAJ8.0CAE3/TR13 under repeated surge stress. |
Compared with SMAJ8.0CA and SMBJ8.0CA-E3/52, the SMAJ8.0CAE3/TR13 delivers optimal balance of RoHS compliance, compact DO-214AC footprint, and verified IEC61000-4-5 Class 4 performance - making it the preferred choice for new designs targeting cost-sensitive, high-volume industrial and automotive applications.
Availability
SMAJ8.0CAE3/TR13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital inputs, medical patient monitor interfaces, and telecom power supply outputs requiring stable component supply across multi-year production cycles.
Supply support for SMAJ8.0CAE3/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 surface-mount transient suppression in space-constrained, high-surge environments - emphasizing fast response, repeatable clamping, and robust thermal performance in DO-214AC packaging.
FAQ
What does the "CA" suffix indicate in SMAJ8.0CAE3/TR13?
The "CA" suffix denotes a bidirectional configuration - meaning SMAJ8.0CAE3/TR13 provides symmetrical clamping in both forward and reverse directions, with identical VBR and VC characteristics. This eliminates polarity concerns during PCB layout and supports protection of AC-coupled or floating signal paths where voltage reversals may occur.
Is SMAJ8.0CAE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ8.0CAE3/TR13 is validated for IEC61000-4-5 secondary lightning surge immunity: Class 4 (2 kV, 12 Ω source) and Class 1 (4 kV, 42 Ω source). Its 15.0 V clamping voltage at 33.3 A ensures protected circuits remain within safe operating limits during standardized surge waveforms.
What is the maximum steady-state power dissipation for SMAJ8.0CAE3/TR13?
SMAJ8.0CAE3/TR13 supports 5 W steady-state power dissipation at a lead temperature (TL) of 75 °C when mounted on FR4 with the recommended footprint. At ambient temperature (TA) of 25 °C, its rated power drops to 1.56 W due to higher thermal resistance to ambient (80 °C/W).
Does SMAJ8.0CAE3/TR13 require special handling for moisture sensitivity?
No - SMAJ8.0CAE3/TR13 has IPC/JEDEC J-STD-020B moisture sensitivity level (MSL) 1, meaning it can be stored indefinitely at ≤30 °C/60% RH without dry packing or baking prior to reflow. The e3 RoHS-compliant matte-tin plating further enhances solderability stability.
What is the clamping voltage of SMAJ8.0CAE3/TR13 under a 10/1000 µs surge?
The maximum clamping voltage (VC) of SMAJ8.0CAE3/TR13 is 15.0 V when subjected to a 10/1000 µs surge waveform at its rated peak pulse current of 33.3 A. This value is guaranteed across temperature and lifetime, ensuring consistent protection margin for downstream ICs.
SMAJ8.0CAE3/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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 36.7A
- 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)
SMAJ8.0CAE3/TR13 FAQ
1.How can I place an order for SMAJ8.0CAE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ8.0CAE3/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 SMAJ8.0CAE3/TR13 reliable?
The price and inventory of SMAJ8.0CAE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ8.0CAE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ8.0CAE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ8.0CAE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ8.0CAE3/TR13?
SMAJ8.0CAE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ8.0CAE3/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 SMAJ8.0CAE3/TR13?
For technical support, including SMAJ8.0CAE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ8.0CAE3/TR13 requirements.
6.How does Aetrix verify that SMAJ8.0CAE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ8.0CAE3/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 SMAJ8.0CAE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ8.0CAE3/TR13?
All SMAJ8.0CAE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ8.0CAE3/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 SMAJ8.0CAE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ8.0CAE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ8.0CAE3/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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Diodes Incorporated
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onsemi
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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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