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Diodes Incorporated SMAJ10CA-13-F
- Part No.:
- SMAJ10CA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CA-13-F.pdf
- Description:
- TVS DIODE 10VWM 17VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:22,588
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Product details
Overview
SMAJ10CA-13-F from Diodes Incorporated is a bidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 10V reverse standoff voltage (VRWM), 11.1V minimum breakdown voltage (VBR), 17.0V maximum clamping voltage (VC) at 23.5A peak pulse current (IPP), and operates across –55°C to +150°C. Used in automotive infotainment power rails and industrial sensor I/O protection.
For engineers reviewing the SMAJ10CA-13-F datasheet, SMAJ10CA-13-F pinout, SMAJ10CA-13-F application, or SMAJ10CA-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, unidirectional vs. bidirectional polarity requirements, peak pulse power derating above +25°C, and compatibility with SMA package reflow profiles.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junction construction to achieve fast response time (<1 ns) and stable clamping under 8.3 ms half-sine surge pulses. Its symmetrical avalanche breakdown enables protection against both positive and negative transients without external polarity coordination.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity standards when applied with appropriate series impedance. Thermal performance is defined by steady-state power dissipation of 1.0 W at TL = +75°C and full operation up to TJ = +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - Sustains single 8.3 ms surges per IEC 61000-4-5 without degradation |
| Clamping Voltage VC | 17.0 V @ IPP = 23.5 A - Limits transient voltage to safe level for 12 V nominal systems |
| Reverse Standoff VRWM | 10 V - Maximum continuous DC voltage before leakage exceeds 5 µA |
| Breakdown Voltage VBR | 11.1–12.3 V @ IT = 1.0 mA - Confirmed avalanche onset range for design margining |
| Operating Temperature | –55°C to +150°C - Validated for under-hood automotive and industrial ambient conditions |
| Package | SMA (DO-214AC) - Standardized surface-mount footprint with 5.59 mm body length and 2.92 mm height |
Pinout & Package
Two-terminal SMA (DO-214AC) package with cathode band omitted for bidirectional configuration. Terminals are matte tin-plated, solderable per MIL-STD-202 Method 208, and rated for moisture sensitivity Level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Transient conduction path | Identical terminals due to bidirectional symmetry; either terminal connects to protected line, other to ground or reference |
| Case | Non-electrical mechanical interface | Molded plastic housing (UL 94V-0) provides insulation and thermal path; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse rating | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 12 V supply rails |
| Glass-passivated die | Ensures stable VBR and low leakage over temperature and lifetime without passivation-related drift |
| Bidirectional architecture | Eliminates need for polarity-aware layout; protects AC-coupled signals and dual-polarity supplies |
| RoHS 3 & Halogen-free | Meets automotive and industrial environmental compliance requirements without bromine/chlorine/antimony restrictions |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial RS-485 Transceiver Protection |
|---|---|
Use Scenario: 12 V battery-supplied BCM exposed to load dump and alternator ripple transients. IC Role / Device Role: Primary clamping device placed directly at connector entry point before input filter. Use Value: Clamps 17.0 V max during 23.5 A surge, preserving downstream LDOs and microcontrollers rated for ≤20 V absolute maximum. | Use Scenario: RS-485 data lines routed through noisy factory environments with ESD and inductive switching noise. IC Role / Device Role: Bidirectional TVS across differential pair (A–B) and common-mode (A–GND, B–GND). Use Value: Symmetrical 17.0 V clamping prevents receiver input stage damage while maintaining signal integrity below 12 V common-mode range. |
| Smart Meter AC/DC Power Supply Input | Medical Patient Monitor Sensor Interface |
Use Scenario: Mains-derived 12 V DC rail subjected to lightning-induced surges on utility-connected equipment. IC Role / Device Role: First-stage overvoltage clamp ahead of bulk capacitor and secondary TVS stages. Use Value: 400 W rating absorbs high-energy transients without thermal runaway; UL 94V-0 housing meets flame-retardancy safety standards. | Use Scenario: Low-voltage analog sensor inputs (e.g., ECG leads) requiring biocompatible, low-leakage protection. IC Role / Device Role: High-impedance, low-capacitance (≈100 pF) TVS on each signal line referenced to patient-isolated ground. Use Value: 5 µA max IR at 10 V ensures minimal DC offset error; bidirectional behavior avoids polarity miswiring in field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-13-F | Unidirectional; same VRWM, VBR, VC, IPP, and package | Requires explicit polarity assignment; unsuitable for AC or floating signals | Select only when protecting DC-only lines with known fixed polarity and ground reference |
| SMBJ10CA-13-F | Same bidirectional function but SMB (DO-214AA) package; 600 W PPK rating | Larger footprint (4.57 × 3.94 mm vs. 4.59 × 2.92 mm); higher thermal mass | Choose when higher surge margin is required and PCB space allows larger package |
Compared with SMAJ10A-13-F, SMAJ10CA-13-F eliminates polarity dependency for flexible layout; compared with SMBJ10CA-13-F, it trades 200 W peak power for 30% smaller board area-critical in space-constrained automotive modules.
Availability
SMAJ10CA-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial communication interfaces, smart energy metering, and medical sensor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMAJ10CA-13-F 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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with manufacturing certified to IATF 16949 and product qualification to AEC-Q101 for automotive-grade components.
The SMAJ series targets cost-sensitive, high-reliability transient suppression in automotive, industrial, and consumer power and interface circuits-designed for direct integration into compact, thermally constrained PCB layouts.
FAQ
What is the maximum clamping voltage of SMAJ10CA-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 17.0 V when subjected to a 23.5 A peak pulse current (IPP), measured using the standardized 8.3 ms half-sine waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SMAJ10CA-13-F require orientation during PCB placement?
No. As a bidirectional TVS diode, SMAJ10CA-13-F has identical electrical behavior regardless of terminal orientation. The SMA package lacks a cathode band marking, confirming its symmetrical construction. This eliminates polarity-dependent assembly errors in automated placement and simplifies layout for AC-coupled or floating signal paths.
How does the 400W peak pulse rating translate to real-world surge immunity?
The 400W rating corresponds to a 23.5 A peak current at 17.0 V clamping for an 8.3 ms half-sine pulse-matching IEC 61000-4-5 Level 4 (4 kV open-circuit, 2 Ω source impedance). In practice, this protects 12 V systems against load dump transients up to ISO 7637-2 Pulse 5a and ESD events exceeding ±15 kV contact discharge per IEC 61000-4-2.
Is SMAJ10CA-13-F qualified for automotive applications?
The standard SMAJ10CA-13-F is not AEC-Q101 qualified. Diodes offers a separate automotive-compliant version, SMAJ10CAQ-13-F, documented in DS19005Q, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities. For non-automotive industrial or consumer use, the standard part meets all electrical and reliability specifications.
SMAJ10CA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 23.5A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ10CA-13-F FAQ
1.How can I place an order for SMAJ10CA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CA-13-F 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 SMAJ10CA-13-F reliable?
The price and inventory of SMAJ10CA-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CA-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ10CA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CA-13-F?
SMAJ10CA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CA-13-F 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 SMAJ10CA-13-F?
For technical support, including SMAJ10CA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CA-13-F requirements.
6.How does Aetrix verify that SMAJ10CA-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ10CA-13-F 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 SMAJ10CA-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ10CA-13-F?
All SMAJ10CA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CA-13-F, 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 SMAJ10CA-13-F part is unused and in its original packaging.
Return procedure for SMAJ10CA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10CA-13-F Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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Diodes Incorporated
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Diodes Incorporated
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