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Diodes Incorporated SMAJ60CA-13
- Part No.:
- SMAJ60CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ60CA-13.pdf
- Description:
- TVS DIODE 60VWM 96.8VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:2,702
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Product details
Overview
SMAJ60CA-13 from Diodes Incorporated is a 400W bi-directional transient voltage suppressor (TVS) diode in SMA package, designed for clamping ESD and surge transients on data lines and power rails. It features a 60V reverse standoff voltage (VRWM), 66.7–73.7V breakdown range (VBR @ 1mA), 96.8V max clamping voltage at 4.1A peak pulse current (IPP), and operates from –55°C to +150°C - used in industrial I/O protection and automotive body control modules.
For engineers reviewing the SMAJ60CA-13 datasheet, SMAJ60CA-13 pinout, SMAJ60CA-13 application, or SMAJ60CA-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC, bidirectional symmetry for AC-coupled interfaces, thermal derating above 25°C ambient, and compatibility with IPC-7351B SMA footprint standards.
Technical Context
This bi-directional TVS diode uses glass-passivated silicon junctions to achieve fast response (<1 ps) to transient events while maintaining low leakage (<5 µA at VRWM). Its symmetrical I-V curve enables protection of both polarities without polarity-sensitive layout constraints.
The device complies with IEC 61000-4-2 (±30 kV contact discharge) and IEC 61000-4-5 (400W, 8.3/50 µs waveform), with clamping performance validated under JEDEC-standard 8.3 ms half-sine surge testing at 4.1A peak current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains single 8.3 ms surge without failure per JEDEC test conditions |
| Reverse Standoff Voltage (VRWM) | 60 V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 66.7–73.7 V @ 1 mA - guaranteed conduction onset window for reliable overvoltage triggering |
| Max Clamping Voltage (VC) | 96.8 V @ IPP = 4.1 A - upper limit of voltage seen by downstream circuit during worst-case surge |
| Peak Pulse Current (IPP) | 4.1 A - maximum non-repetitive surge current the device can safely divert |
| Operating Temperature | –55°C to +150°C - supports under-hood automotive and industrial control environments |
| Leakage Current (IR) | <5 µA @ 60 V - ensures minimal power loss and signal integrity in standby operation |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with UL 94V-0 flammability rating; cathode band omitted due to bi-directional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Bi-directional terminals - either end accepts positive or negative surge; no polarity dependency in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| 400W peak pulse rating | Meets IEC 61000-4-5 Level 3 surge immunity requirements for industrial ports |
| RoHS-compliant matte tin plating | Ensures solderability per MIL-STD-202 Method 208 and compatibility with lead-free reflow profiles |
| Low clamping ratio (VC/VRWM ≈ 1.61) | Minimizes overvoltage stress on protected 60V-rated components such as CAN transceivers or solenoid drivers |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protection of 24V analog sensor inputs (e.g., pressure, temperature) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor line and ground, operating in avalanche mode during overvoltage events. Use Value: Limits voltage excursion to ≤96.8V, preventing damage to 36V-rated op-amps and ADC front-ends while maintaining sub-5µA leakage at 24V nominal. |
Use Scenario: Surge suppression on LIN bus lines exposed to battery transients and ESD in door module ECUs. IC Role / Device Role / Timing Role: Passive transient shunt across LIN differential pair, activated within <1 ps of voltage exceedance. Use Value: Maintains signal integrity below 1 Mbps LIN timing budget by limiting clamping overshoot and avoiding capacitive loading >100 pF. |
| Power Supply Input Stage | RS-485 Communication Port |
Use Scenario: Secondary overvoltage protection on 48V DC input rails after primary DC/DC converter. IC Role / Device Role / Timing Role: Final-stage crowbar for fast-rising transients escaping upstream filtering. Use Value: Withstands 400W surges without degradation, enabling compliance with EN 61000-4-4 (EFT) and reducing need for redundant MOV stages. |
Use Scenario: Bi-directional protection of RS-485 transceiver A/B lines in factory automation gateways. IC Role / Device Role / Timing Role: Symmetrical clamp referenced to common-mode voltage, suppressing common- and differential-mode surges. Use Value: Matches RS-485 bus impedance profile and avoids signal distortion via low capacitance (<100 pF) and matched VBR tolerance (±5%). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60CA-13 | Same electrical specs but SMB package (higher thermal mass, 600W rating) | Better suited for higher-energy surges; requires larger PCB footprint | Select when surge energy exceeds 400W or board space allows larger package |
| SMCJ60CA-13 | Same VRWM/VBR/VC but SMC package (1500W rating, lower thermal resistance) | Used where sustained surge duty cycle or elevated ambient temperatures exist | Choose for automotive engine bay or high-temperature industrial enclosures |
Compared with SMBJ60CA-13 and SMCJ60CA-13, SMAJ60CA-13 offers optimal balance of compact size, cost, and 400W surge handling - ideal for space-constrained 24–60V systems where peak energy rarely exceeds single-event JEDEC limits.
Availability
SMAJ60CA-13 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, RS-485 communication ports, and 48V power supply input stages requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMAJ60CA-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial and automotive markets.
SMAJ series TVS diodes are part of Diodes' transient suppression portfolio, engineered specifically for robust, low-leakage, surface-mount surge protection in harsh-environment applications with strict thermal and footprint constraints.
FAQ
What does the "C" suffix in SMAJ60CA-13 indicate?
The "C" denotes bi-directional configuration, meaning the device provides symmetrical clamping for both positive and negative transients without polarity orientation on the PCB. Unlike unidirectional variants, it lacks a cathode band marking and exhibits identical VBR and VC characteristics in either direction.
Can SMAJ60CA-13 be used in place of a unidirectional TVS like SMAJ60A-13?
No - SMAJ60CA-13 is bi-directional and unsuitable for DC-biased lines requiring unidirectional clamping (e.g., 5V logic rails). Substitution would cause unintended conduction during normal negative excursions. Unidirectional devices have explicit cathode marking and asymmetric I-V curves optimized for DC-coupled protection.
What is the thermal derating behavior above 25°C ambient?
Per Figure 1 in DS19005 Rev. 12, peak pulse power derates linearly from 100% at 25°C to ~50% at 125°C ambient. At 75°C, usable peak power drops to ~80%, requiring system-level validation if repeated surges occur in high-temperature environments.
Is SMAJ60CA-13 compatible with lead-free reflow processes?
Yes - it features matte tin plating compliant with RoHS Directive 2011/65/EU and qualified for standard Pb-free reflow profiles (peak temperature ≤260°C, 60-second duration), per Diodes' packaging specification AP02007 and JEDEC J-STD-020C Level 1 moisture sensitivity rating.
SMAJ60CA-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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMAJ60CA-13 FAQ
1.How can I place an order for SMAJ60CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ60CA-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 SMAJ60CA-13 reliable?
The price and inventory of SMAJ60CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ60CA-13 is usually 5 days.
3.What payment methods are accepted for SMAJ60CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ60CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ60CA-13?
SMAJ60CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ60CA-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 SMAJ60CA-13?
For technical support, including SMAJ60CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ60CA-13 requirements.
6.How does Aetrix verify that SMAJ60CA-13 is sourced from the original manufacturer or authorized distributors?
All SMAJ60CA-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 SMAJ60CA-13 meets industry standards.
7.What is the process for return or replacement of SMAJ60CA-13?
All SMAJ60CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ60CA-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 SMAJ60CA-13 part is unused and in its original packaging.
Return procedure for SMAJ60CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ60CA-13 Tags
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ESD9B5.0ST5G
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