My Inquiry
My Account
Microchip Technology SMAJ8.0CE3/TR13
- Part No.:
- SMAJ8.0CE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ8.0CE3/TR13.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,253
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ8.0CE3/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 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 I/O, telecom interfaces, and automotive body electronics.
For engineers reviewing the SMAJ8.0CE3/TR13 datasheet, SMAJ8.0CE3/TR13 pinout, SMAJ8.0CE3/TR13 application, or SMAJ8.0CE3/TR13 equivalent, key selection criteria include bidirectional clamping behavior, IEC61000-4-2/4-4/4-5 compliance class mapping, DO-214AC package thermal resistance (15 °C/W junction-to-lead), and RoHS-compliant matte-tin terminations with tape-and-reel packaging (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 for unidirectional mode (and <5 ns for bidirectional operation) ensures suppression before sensitive downstream circuitry sustains damage from fast transients such as ESD contact discharge.
The device is rated for 500 W peak pulse power at 25 °C under 10/1000 µs waveform, with derating to 1.56 W steady-state power at 25 °C ambient on FR4 board. Junction-to-lead thermal resistance is 15 °C/W, supporting reliable surge energy dissipation when mounted per recommended footprint (JEDEC DO-214AC outline with modified J-bend leads).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before leakage exceeds 100 µA; defines safe working range for protected line. |
| VBR min @ IBR | 8.89 V @ 1 mA - Minimum voltage at which device enters avalanche conduction; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 15.0 V @ 33.3 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPP | 500 W - Peak pulse power handling capability; enables protection against high-energy surges like IEC61000-4-5 Class 4 (12 Ω source). |
| IPP | 33.3 A - Peak pulse current supported at VC; correlates directly with system-level surge test compliance (e.g., 42 Ω source impedance Class 4). |
| TJ Range | –65 °C to +150 °C - Operating and storage temperature range; supports deployment in under-hood automotive and industrial environments. |
| Package | DO-214AC (SMAJ) - Surface-mount outline with wide leads for low thermal resistance (15 °C/W j-to-l) and high surge current path integrity. |
Pinout & Package
DO-214AC (SMAJ) package with bidirectional symmetry: two terminals share identical electrical behavior; cathode band marking is omitted per specification for bidirectional variants. Leads are C-bend (modified J-bend), matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge current path | Either terminal serves as current entry point during positive or negative transients; no polarity dependency in layout. |
| Case / Body | Thermal conduction path | Plastic thermoset epoxy body (UL94V-0) provides mechanical stability and contributes to junction-to-ambient thermal path (80 °C/W on FR4). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without external polarity management circuitry. |
| IEC61000-4-5 Class 4 support | Validated for secondary lightning immunity with 12 Ω source impedance up to SMAJ12A/CA - SMAJ8.0CE3/TR13 meets this class. |
| RoHS-compliant "e3" termination | Matte-tin plating eliminates lead content while maintaining solderability and intermetallic reliability per JEDEC standards. |
| Tape-and-reel packaging (TR13) | 2500 units per 13-inch reel per EIA-481-1-A - optimized for automated SMT placement in high-volume production. |
| 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 Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 0–10 V analog sensor inputs in PLC I/O modules from induced switching transients and EFT bursts. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground, clamping ±15 V surges within nanoseconds to prevent ADC input latch-up or op-amp damage. Use Value: Maintains signal integrity under IEC61000-4-4 Level 4 (4 kV) testing while adding zero propagation delay or DC loading to the 100 kΩ input impedance path. | Use Scenario: Safeguarding LIN bus transceiver pins in door module ECUs exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Placed across LIN data line (VD+ to VD−), suppressing differential-mode surges up to ±33.3 A without disrupting 19.2 kbps communication timing. Use Value: Enables compliance with ISO 16750-2 Pulse 5a/b while avoiding the need for separate unidirectional devices on each line. |
| Telecom Line Card Protection | DC Power Rail Clamp |
Use Scenario: Shielding Ethernet PHY interface transformers and magnetics from ESD events during hot-plug insertion in enterprise switches. IC Role / Device Role / Timing Role: Mounted across transformer center taps or common-mode chokes to clamp common-mode ESD pulses per IEC61000-4-2 Contact Discharge ±8 kV. Use Value: Limits voltage excursion to ≤15.0 V during 150 pF/330 Ω ESD event, preventing gate oxide rupture in integrated PHY drivers. | Use Scenario: Suppressing inductive kickback on 12 V DC supply rails feeding solenoids or relays in factory automation controllers. IC Role / Device Role / Timing Role: Connected between rail and chassis ground, absorbing 500 W surge energy from relay coil de-energization without forward conduction. Use Value: Eliminates need for freewheeling diodes while sustaining 33.3 A peak current at 15.0 V clamp - reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0AHE3/TR13 | Unidirectional variant with cathode band marking; same VWM, VBR, VC, and PPP ratings but asymmetric conduction. | Requires explicit polarity assignment in layout; unsuitable for AC or floating nodes where bidirectional clamping is mandatory. | Select SMAJ8.0AHE3/TR13 only when protecting DC rails with known polarity and needing marginally lower leakage (<1 µA vs. <100 µA). |
| SMBJ8.0CE3/TR13 | Same bidirectional functionality but in DO-214AA (SMB) package; 600 W PPP, higher IPP (40 A), and larger thermal mass (12 °C/W j-to-l). | Better suited for higher-energy surges or elevated ambient temperatures; requires larger PCB footprint and different pad layout. | Choose SMBJ8.0CE3/TR13 when system-level testing exceeds IEC61000-4-5 Class 4 or thermal budget demands lower junction rise. |
Compared with SMAJ8.0AHE3/TR13, SMAJ8.0CE3/TR13 offers polarity-agnostic protection critical for AC-coupled interfaces, while SMBJ8.0CE3/TR13 delivers higher surge capacity and thermal robustness at the cost of increased board space - making SMAJ8.0CE3/TR13 the optimal balance for space-constrained, bidirectional DC/low-frequency signal protection.
Availability
SMAJ8.0CE3/TR13 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom line cards, and DC power rail clamping requiring stable component supply across extended product lifecycles.
Supply support for SMAJ8.0CE3/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, industrial, and communications markets.
The SMAJ series was engineered specifically for surface-mount transient voltage suppression in space- and cost-constrained designs, emphasizing rapid response, repeatable clamping, and compatibility with standard SMT assembly processes.
FAQ
What does the "C" suffix in SMAJ8.0CE3/TR13 indicate?
The "C" suffix denotes a bidirectional configuration - meaning SMAJ8.0CE3/TR13 clamps transients of either polarity symmetrically across its two terminals. Unlike unidirectional variants (e.g., SMAJ8.0A), it has no cathode marking and is used where signal lines lack defined DC polarity, such as AC-coupled interfaces or floating buses. This is confirmed in Microsemi's MSC0270A datasheet, Page 1.
Is SMAJ8.0CE3/TR13 compliant with IEC61000-4-5 for lightning surge protection?
Yes, SMAJ8.0CE3/TR13 is validated for secondary lightning protection per IEC61000-4-5 with both 12 Ω and 42 Ω source impedances. Specifically, it meets Class 4 (12 Ω) and Class 1 (42 Ω) requirements as stated in the Applications section of the MSC0270A datasheet, Page 1. Its 15.0 V clamping voltage at 33.3 A ensures downstream ICs remain within safe operating limits during standardized surge tests.
What is the thermal resistance of SMAJ8.0CE3/TR13, and how does it affect layout?
SMAJ8.0CE3/TR13 has a junction-to-lead thermal resistance of 15 °C/W and junction-to-ambient resistance of 80 °C/W on FR4 with 1 oz copper and the recommended footprint. This means effective heat dissipation relies heavily on copper pour connected to both terminals and adherence to the DO-214AC pad layout in MSC0270A, Page 5. Exceeding 500 W surge duty cycle without adequate copper area risks thermal runaway.
Does SMAJ8.0CE3/TR13 require moisture baking before reflow soldering?
No, SMAJ8.0CE3/TR13 is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This eliminates pre-reflow bake steps in manufacturing, reducing process complexity and cost - a key advantage confirmed in the Mechanical and Packaging section of MSC0270A, Page 1.
How does the "TR13" suffix impact ordering and assembly of SMAJ8.0CE3/TR13?
The "TR13" suffix indicates tape-and-reel packaging: 2500 units per 13-inch reel per EIA-481-1-A standard. This format is optimized for high-speed pick-and-place machines, ensuring consistent feed accuracy and minimizing manual handling. The reel orientation and sprocket hole pitch are fully compatible with industry-standard SMT equipment, as documented in the Mechanical and Packaging section of MSC0270A, Page 1.
SMAJ8.0CE3/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:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SMAJ8.0CE3/TR13 FAQ
1.How can I place an order for SMAJ8.0CE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ8.0CE3/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 SMAJ8.0CE3/TR13 reliable?
The price and inventory of SMAJ8.0CE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ8.0CE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMAJ8.0CE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ8.0CE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ8.0CE3/TR13?
SMAJ8.0CE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ8.0CE3/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 SMAJ8.0CE3/TR13?
For technical support, including SMAJ8.0CE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ8.0CE3/TR13 requirements.
6.How does Aetrix verify that SMAJ8.0CE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMAJ8.0CE3/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 SMAJ8.0CE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMAJ8.0CE3/TR13?
All SMAJ8.0CE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ8.0CE3/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 SMAJ8.0CE3/TR13 part is unused and in its original packaging.
Return procedure for SMAJ8.0CE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ8.0CE3/TR13 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
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…
