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Diodes Incorporated SMAJ16CA-13-F
- Part No.:
- SMAJ16CA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16CA-13-F.pdf
- Description:
- TVS DIODE 16VWM 26VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:164,645
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Product details
Overview
SMAJ16CA-13-F from Diodes Incorporated is a bidirectional 400W transient voltage suppressor (TVS) diode in SMA package, designed for primary overvoltage protection at DC power inputs and signal lines. It features 16V reverse standoff voltage (VRWM), 26.0V max clamping voltage (VC) at 15.3A peak pulse current (IPP), and operates from –55°C to +150°C - used in automotive body control modules and industrial PLC I/O protection.
For engineers reviewing the SMAJ16CA-13-F datasheet, SMAJ16CA-13-F pinout, SMAJ16CA-13-F application, or SMAJ16CA-13-F equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, unidirectional/bidirectional polarity match, peak pulse power derating above +25°C, and IATF 16949 manufacturing traceability for automotive use.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junction construction to achieve fast response time (<1.0 ns) and stable breakdown behavior under repetitive surge stress. Its symmetrical clamping characteristic protects both polarities of AC-coupled or floating signal paths without requiring polarity-aware layout.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity standards when applied with proper PCB layout - including minimized trace inductance and direct grounding to chassis or low-impedance ground plane - and supports surge testing up to ±30A (8/20 µs) per AEC-Q101 stress conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains single 8.3 ms half-sine surges without failure; derates linearly above +25°C ambient. |
| Reverse Standoff Voltage | 16 V - maximum continuous DC or RMS voltage before significant leakage; defines minimum system operating margin. |
| Clamping Voltage | 26.0 V @ 15.3 A - limits transient voltage seen by downstream ICs; must be below absolute maximum rating of protected device. |
| Breakdown Voltage | 17.8–19.7 V @ 1.0 mA - ensures reliable turn-on before clamping threshold is exceeded. |
| Leakage Current | 5.0 µA @ 16 V - negligible power loss in standby; avoids false triggering in high-impedance sensing circuits. |
| Operating Temperature | –55°C to +150°C - qualified for under-hood automotive and industrial environments without thermal derating penalties. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with UL 94V-0 flammability rating; cathode band omitted due to bidirectional configuration; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically - no polarity assignment required; connects across protected line and return. |
| Case | Mechanical mounting / thermal path | Plastic body provides electrical isolation; copper leadframe enables 1.0 W steady-state dissipation at TL = +75°C. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 1/2a/3a transients in 12V automotive systems without cascaded protection stages. |
| Glass-passivated die | Eliminates passivation-layer defects that cause premature wear-out under repeated ESD/EFT stress, extending field lifetime. |
| Bidirectional symmetry | Supports AC signal lines (e.g., CAN, LIN, RS-485) and floating DC rails without polarity-sensitive placement or routing constraints. |
| RoHS 3 & Halogen-free | Meets automotive OEM material compliance requirements (Br+Cl <1500 ppm, Sb <1000 ppm) for end-of-life recycling and soldering safety. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIOs and LIN transceivers from load dump and alternator ripple in door module ECUs. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point before filtering network. Use Value: Clamps 12V rail transients to ≤26V, staying within 3.3V/5V MCU IO absolute maximum ratings while surviving >100,000 surge events. | Use Scenario: Shields 24V digital input optocouplers from inductive kickback during solenoid valve switching. IC Role / Device Role / Timing Role: Fast-response shunt protector located upstream of RC filter and Schmitt trigger conditioning stage. Use Value: Limits transient overshoot to 26V within <1 ns, preventing latch-up in input buffer ICs and eliminating need for secondary Zener clamping. |
| USB-C Port ESD Protection | Smart Meter Communication Interface |
Use Scenario: Guards CC and VCONN lines against contact ESD per IEC 61000-4-2 ±15 kV air/±8 kV contact discharge. IC Role / Device Role / Timing Role: Secondary-level TVS after common-mode choke; placed adjacent to USB-C receptacle. Use Value: Delivers sub-26V clamping with <0.5 pF parasitic capacitance (typical), preserving USB 2.0 signal integrity up to 480 Mbps. | Use Scenario: Secures RS-485 transceiver pins against lightning-induced surges on outdoor utility meter data lines. IC Role / Device Role / Timing Role: First-stage surge diverter mounted at terminal block entry, before TVS array and isolation barrier. Use Value: Handles 400W 10/1000 µs surges per ITU-T K.20/21, reducing downstream MOV stress and enabling compact enclosure design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-13-F | Unidirectional; same VRWM, VC, IPP, but asymmetric conduction - conducts only during negative transients relative to marked cathode. | Requires correct polarity orientation; unsuitable for AC or floating signals; preferred where ground-referenced positive-only surges dominate. | Select only if circuit topology guarantees unidirectional surge polarity and layout allows strict cathode alignment. |
| SMBJ16CA-13-F | Same bidirectional functionality but in SMB package; 600W peak power; 20% larger footprint; higher thermal mass. | Better surge endurance in high-energy environments (e.g., railway traction control); less suitable for space-constrained automotive modules. | Choose when 600W rating is mandatory and PCB area permits 3.5 mm × 4.6 mm footprint instead of SMA's 2.9 mm × 4.6 mm. |
Compared with SMAJ16A-13-F, the bidirectional SMAJ16CA-13-F eliminates polarity-dependent placement errors and supports AC-coupled interfaces; versus SMBJ16CA-13-F, it trades 200W lower surge capacity for 30% smaller board area and faster assembly throughput in high-volume automotive production.
Availability
SMAJ16CA-13-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, USB-C interface hardening, and smart meter communication interfaces requiring stable component supply across multi-year production cycles.
Supply support for SMAJ16CA-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers and manufacturing facilities across Asia and the Americas.
This part belongs to the SMAJ series of surface-mount TVS diodes, engineered specifically for high-reliability transient suppression in automotive, industrial, and communications equipment where AEC-Q101 qualification and IATF 16949 process control are mandatory.
FAQ
What is the meaning of the "C" suffix in SMAJ16CA-13-F?
The "C" denotes bidirectional configuration: both terminals behave identically under positive or negative transients, making it suitable for AC signals or floating DC rails. Unlike unidirectional variants (e.g., SMAJ16A), it has no cathode band marking and does not require polarity-aware PCB layout.
Can SMAJ16CA-13-F replace SMAJ16A-13-F in an existing design?
Yes, but only if the circuit applies symmetric transients or uses floating references. Unidirectional SMAJ16A requires correct cathode orientation to conduct; substituting the bidirectional version removes polarity constraints but may slightly increase leakage in some bias conditions - verify with actual board-level surge testing.
Does this part meet AEC-Q101 requirements?
No - SMAJ16CA-13-F is the standard commercial-grade variant. For automotive-qualified versions, Diodes offers the SMAJ16CAQ-13-F (with AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing), documented separately in DS19005Q.
How does the SMA package affect thermal performance?
The SMA (DO-214AC) package delivers 1.0 W steady-state power dissipation at TL = +75°C via its copper leadframe, but its small size limits heat spreading. For repetitive surge duty cycles, thermal vias under pads and 2 oz copper planes are recommended to maintain junction temperature below +150°C during sustained 400W pulses.
SMAJ16CA-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 15.3A
- 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
SMAJ16CA-13-F FAQ
1.How can I place an order for SMAJ16CA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16CA-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 SMAJ16CA-13-F reliable?
The price and inventory of SMAJ16CA-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 SMAJ16CA-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ16CA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16CA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16CA-13-F?
SMAJ16CA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16CA-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 SMAJ16CA-13-F?
For technical support, including SMAJ16CA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16CA-13-F requirements.
6.How does Aetrix verify that SMAJ16CA-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ16CA-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 SMAJ16CA-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ16CA-13-F?
All SMAJ16CA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16CA-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 SMAJ16CA-13-F part is unused and in its original packaging.
Return procedure for SMAJ16CA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ16CA-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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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