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Diodes Incorporated SMAJ6.0CA-13
- Part No.:
- SMAJ6.0CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CA-13.pdf
- Description:
- TVS DIODE 6VWM 10.3VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,281
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Product details
Overview
SMAJ6.0CA-13 from Diodes Incorporated is a bi-directional 400W transient voltage suppressor (TVS) diode in SMA package, featuring 6.0V reverse standoff voltage, 10.3V max clamping voltage at 38.8A peak pulse current, and -55°C to +150°C operating temperature range. It protects DC power rails and signal lines in industrial motor drives, automotive body control modules, and PoE-powered Ethernet interfaces against ESD and lightning-induced surges.
For engineers reviewing the SMAJ6.0CA-13 datasheet, SMAJ6.0CA-13 pinout, SMAJ6.0CA-13 application, or SMAJ6.0CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current capability under IEC 61000-4-5 surge waveforms, unidirectional vs. bi-directional polarity requirements, and thermal derating above 25°C ambient.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage specified at 6.67–7.37V (min/max) under 10mA test current. Its glass-passivated junction ensures stable avalanche characteristics and low leakage (<800nA at 4.8V VRWM).
The device responds within <1ns to transients and maintains clamping performance up to 150°C junction temperature. Pulse derating follows JEDEC-standard 8.3ms half-sine waveform, with 400W peak power fully rated only at TA = 25°C and reduced linearly above that point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 8.3ms surge events per JEDEC method without failure |
| Reverse Standoff Voltage | 6.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 6.67–7.37V @ 10mA - defines onset of controlled avalanche conduction |
| Max Clamping Voltage | 10.3V @ 38.8A IPP - limits transient voltage seen by downstream circuitry |
| Operating Temperature | -55°C to +150°C - supports under-hood automotive and industrial environments |
| Package | SMA - surface-mount, UL 94V-0 rated plastic case with 0.064g mass |
Pinout & Package
SMA package: molded plastic case with cathode band omitted (bi-directional), dimensions 4.00–4.60mm (L) × 2.29–2.92mm (W) × 1.27–1.63mm (H), weight 0.064g. Terminals are solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bi-directional avalanche terminals | No polarity marking; either terminal serves as anode or cathode depending on transient polarity |
| Case | Non-electrical mechanical interface | Plastic body provides insulation and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| 400W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 12V/24V systems |
| Glass-Passivated Die | Ensures stable breakdown voltage over lifetime and resistance to humidity-induced parameter drift |
| Bi-directional Symmetry | Eliminates need for polarity-aware layout; protects AC-coupled signals and floating buses |
| RoHS Compliant (Lead-Free) | Meets EU Directive Annex exemptions for high-temp soldering; matte tin finish compatible with Pb-free reflow |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate driver supply inputs against inductive kickback from H-bridge MOSFET switching. IC Role / Device Role / Timing Role: Transient voltage clamp placed directly at driver IC VDD pin. Use Value: Limits voltage excursion to ≤10.3V during 38.8A surge, preventing latch-up or oxide damage in 5V/6V-rated drivers. | Use Scenario: Shielding LIN bus transceivers from load dump and jump-start transients in door module ECUs. IC Role / Device Role / Timing Role: Bi-directional shunt protector on LIN signal line between transceiver and connector. Use Value: Clamps negative-going spikes below -10.3V and positive spikes above +10.3V, preserving signal integrity across ±40V fault conditions. |
| Power over Ethernet (PoE) | DC Power Rail Protection |
Use Scenario: Safeguarding 48V PSE controller inputs against cable discharge events and Ethernet ESD (IEC 61000-4-2). IC Role / Device Role / Timing Role: Primary surge clamp on midspan injector DC output before magnetics. Use Value: Absorbs 400W pulses while holding rail voltage within safe margin of 60V-rated controller ICs. | Use Scenario: Guarding 6V auxiliary rails in telecom base station backplanes from hot-swap and board-level ESD. IC Role / Device Role / Timing Role: Secondary protection stage after primary fuse and common-mode choke. Use Value: Provides sub-100ns response to fast-rising transients, limiting overshoot to <10.3V on critical analog sensor supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-13 | Unidirectional; 6.0V VRWM, same clamping (10.3V) and power (400W) | Requires explicit polarity alignment; unsuitable for AC or floating nodes | Select when protecting DC rails with known polarity and tighter leakage budget (<100nA at VRWM) |
| SMBJ6.0CA-13 | Same bi-directional function but SMB package; 600W rating, larger footprint (4.58×3.94mm) | Higher surge capacity but incompatible footprint; requires PCB redesign | Choose for higher reliability margin in harsh environments where 600W headroom justifies larger area |
Compared with SMAJ6.0A-13, the SMAJ6.0CA-13 eliminates polarity constraints at the cost of slightly higher leakage; versus SMBJ6.0CA-13, it trades surge headroom for space-constrained layouts where 400W meets system-level test requirements.
Availability
SMAJ6.0CA-13 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and Power over Ethernet (PoE) systems requiring stable component supply and consistent surge immunity performance across production batches.
Supply support for SMAJ6.0CA-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability board-level protection in automotive, industrial, and communications equipment where compact size and repeatable clamping behavior are critical.
FAQ
What is the difference between SMAJ6.0CA-13 and SMAJ6.0A-13?
The "C" suffix denotes bi-directionality: SMAJ6.0CA-13 clamps transients of either polarity symmetrically, with no cathode band marking, while SMAJ6.0A-13 is unidirectional and requires correct orientation on the PCB. Both share identical 6.0V VRWM, 10.3V clamping, and 400W rating, but leakage at VRWM differs-800nA for the bi-directional version versus <100nA for the unidirectional variant.
Can SMAJ6.0CA-13 be used in place of a 5.0V TVS diode?
No-SMAJ6.0CA-13 has a 6.0V reverse standoff voltage and is not rated for reliable operation on 5.0V rails. Using it risks premature conduction during normal operation due to its 6.67V minimum breakdown voltage, which exceeds typical 5V system tolerances. For 5V applications, SMAJ5.0CA-13 (5.0V VRWM, 9.2V clamping) is the appropriate selection.
What is the thermal derating behavior above 25°C ambient?
Per Figure 1 in DS19005 Rev. 12, SMAJ6.0CA-13's peak pulse power derates linearly from 100% at 25°C to ~50% at 100°C ambient. At 75°C, it retains ~80% of 400W (i.e., ~320W); at 125°C, ~60% (~240W). Derating applies only to repetitive surge conditions-not single-event testing-and assumes proper PCB copper area for heat dissipation.
Is SMAJ6.0CA-13 RoHS compliant and lead-free?
Yes-SMAJ6.0CA-13 is supplied with a matte tin (Sn) lead-free finish and complies with RoHS Directive 2011/65/EU, including exemptions for high-temperature soldering (Annex III, Notes 5 and 7). The part meets J-STD-020C moisture sensitivity level 1 and is qualified for standard Pb-free reflow profiles up to 260°C peak temperature.
SMAJ6.0CA-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMAJ)
SMAJ6.0CA-13 FAQ
1.How can I place an order for SMAJ6.0CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CA-13 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 SMAJ6.0CA-13 reliable?
The price and inventory of SMAJ6.0CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0CA-13 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CA-13?
SMAJ6.0CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CA-13 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 SMAJ6.0CA-13?
For technical support, including SMAJ6.0CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CA-13 requirements.
6.How does Aetrix verify that SMAJ6.0CA-13 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CA-13 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 SMAJ6.0CA-13 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CA-13?
All SMAJ6.0CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CA-13, 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 SMAJ6.0CA-13 part is unused and in its original packaging.
Return procedure for SMAJ6.0CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ6.0CA-13 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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ESD5Z5.0T1G
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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