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STMicroelectronics SMA6J58CA-TR
- Part No.:
- SMA6J58CA-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J58CA-TR.pdf
- Description:
- TVS DIODE 58VWM 100VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:4,711
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Product details
Overview
SMA6J58CA-TR from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode designed for ESD and surge protection in DC power lines and signal interfaces. It features a 58 V stand-off voltage (VRM), 91.1 V maximum clamping voltage at 6.7 A (10/1000 µs), 600 W peak pulse power rating, and operates up to 175 °C junction temperature-ideal for automotive infotainment power rail protection.
For engineers reviewing the SMA6J58CA-TR datasheet, SMA6J58CA-TR pinout, SMA6J58CA-TR application, or SMA6J58CA-TR equivalent, key selection criteria include bidirectional clamping behavior, low leakage (<0.2 µA @ 25 °C), JEDEC DO-214AC (SMA) package compatibility, and IEC 61000-4-2 Level 4 (±30 kV contact/air) compliance.
Technical Context
This TVS diode uses planar silicon technology to achieve stable breakdown characteristics and low dynamic resistance (RD = 10.4 Ω at 25 °C), enabling precise voltage clamping during fast transients. Its bidirectional configuration supports symmetric surge suppression on AC-coupled or floating signal paths without polarity dependency.
The device meets IEC 61000-4-4 Level 4 (4 kV) and exceeds IEC 61000-4-2 Level 4 (±30 kV), with thermal stability ensured by a 175 °C max operating junction temperature and UL94 V0-compliant epoxy molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 58 V - Maximum continuous reverse working voltage before conduction begins |
| Breakdown Voltage (VBR) | 64.4–71.2 V @ IBR = 1 mA - Ensures reliable triggering above normal operating voltage |
| Clamping Voltage (VCL) | 91.1 V @ IPP = 6.7 A (10/1000 µs) - Limits downstream voltage stress during surge events |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustains standard lightning-surge energy without failure |
| Leakage Current (IRM) | ≤0.2 µA @ 25 °C - Minimizes standby power loss in battery-powered systems |
| Junction Temperature Range | −55 °C to +175 °C - Supports under-hood automotive and industrial high-temp environments |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact & air discharge - Exceeds Level 4 for robust interface port protection |
Pinout & Package
Package: DO-214AC (SMA), JEDEC-registered surface-mount outline per IPC-7531; dimensions: 4.80–5.35 mm × 2.25–2.90 mm × 1.90–2.45 mm (L × W × H); UL94 V0 compliant resin; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Surge current sink (bidirectional) | Common terminal for both polarities; connects to protected line or ground reference |
| Anode (A) | Surge current sink (bidirectional) | Second terminal forming symmetrical clamping path; no polarity assignment required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without external polarity management |
| Low dynamic resistance (RD) | 10.4 Ω ensures tight clamping window and minimal overshoot during 8/20 µs surges |
| High-temperature operation | 175 °C Tj max allows placement near heat sources (e.g., power converters) without derating |
| JEDEC DO-214AC footprint | Ensures drop-in compatibility with existing SMA layouts and automated assembly processes |
| UL94 V0 resin & MSL Level 1 | Eliminates pre-bake requirements and supports long-term reliability in humid environments |
Applications
| Automotive Infotainment Power Rail | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting 12 V supply lines feeding head unit processors and display drivers against load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between power input and local LDO/regulator input. Use Value: Clamps surges to ≤91.1 V, preventing damage to 3.3 V/5 V logic supplies downstream while maintaining <0.2 µA leakage at ambient temperature. | Use Scenario: Safeguarding CANH/CANL differential pair against ESD and coupled noise in factory automation nodes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS mounted across bus lines, adjacent to connector. Use Value: Provides ±30 kV ESD immunity without distorting 1 Mbps CAN signaling due to symmetric clamping and sub-10 pF junction capacitance at VR = 58 V. |
| Telecom PoE Midspan Injector | Medical Patient Monitor Signal Input |
Use Scenario: Protecting 48 V DC power delivery lines in IEEE 802.3af/at midspan injectors from induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side output before Ethernet magnetics. Use Value: Absorbs 600 W (10/1000 µs) surges while limiting clamped voltage to 91.1 V-well below 100 V isolation barrier ratings. | Use Scenario: Shielding analog front-end inputs (ECG, SpO₂) from ESD events during clinical handling. IC Role / Device Role / Timing Role: Bidirectional TVS on isolated sensor input traces, referenced to local shield ground. Use Value: Delivers ±30 kV contact discharge protection with <0.2 µA leakage to preserve microvolt-level signal integrity and amplifier bias stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA-TR | Same VRM/VBR/VCL specs but SMB package (DO-214AA); 1000 W PPP rating | Higher power handling suits higher-energy surge environments; larger footprint requires PCB redesign | Select when >600 W surge margin is required and board space permits SMB layout |
| SMCJ58CA-TR | Same electrical specs; SMC package (DO-214AB); 1500 W PPP rating | Used in industrial motor drives or solar inverters where 1.5 kW pulse capability is mandated | Choose for harsher environments requiring MIL-STD-1275 or ISO 16750-2 compliance |
Compared with SMBJ58CA-TR and SMCJ58CA-TR, SMA6J58CA-TR offers optimal balance of compact size, 600 W surge capability, and low-leakage performance for space-constrained automotive and telecom applications where strict footprint control is critical.
Availability
SMA6J58CA-TR is available at Aetrix Electronics and suitable for automotive infotainment power rail protection, industrial CAN bus interface hardening, and medical patient monitor signal input safeguarding requiring stable component supply across production lifecycles.
Supply support for SMA6J58CA-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontroller technologies for automotive, industrial, and consumer markets.
The SMA6J series belongs to ST's transient protection portfolio, engineered specifically for high-reliability DC and signal-line surge suppression in automotive and industrial environments demanding extended temperature operation and stringent ESD immunity.
FAQ
What does the "CA" suffix indicate in SMA6J58CA-TR?
The "CA" suffix denotes a bidirectional configuration: the device clamps symmetrically for both positive and negative transients, making it suitable for AC-coupled lines, differential buses like CAN or RS-485, or floating power domains where polarity is undefined or reversible.
How does SMA6J58CA-TR differ from unidirectional SMA6J58A-TR?
SMA6J58A-TR conducts only during positive surges relative to its cathode, requiring correct polarity installation; SMA6J58CA-TR provides identical clamping for both polarities, eliminating orientation concerns and simplifying layout on bidirectional or AC-linked circuits.
Is SMA6J58CA-TR compatible with lead-free reflow soldering?
Yes-it is qualified for lead-free reflow per JEDEC J-STD-020 MSL Level 1, with a peak profile of 240–245 °C for ≤60 seconds. The matte tin-plated leads and UL94 V0 epoxy ensure reliable wetting and intermetallic formation without voiding or delamination.
Can SMA6J58CA-TR be used in parallel for higher surge current handling?
No-parallel connection is not recommended due to mismatched dynamic resistance and thermal runaway risk. For higher current capability, select a higher-power-rated variant (e.g., SMBJ58CA-TR or SMCJ58CA-TR) with matched VBR and RD specifications.
SMA6J58CA-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 100V
- Current - Peak Pulse (10/1000µs):
- 33A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J58CA-TR FAQ
1.How can I place an order for SMA6J58CA-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J58CA-TR 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 SMA6J58CA-TR reliable?
The price and inventory of SMA6J58CA-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J58CA-TR is usually 5 days.
3.What payment methods are accepted for SMA6J58CA-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J58CA-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J58CA-TR?
SMA6J58CA-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J58CA-TR 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 SMA6J58CA-TR?
For technical support, including SMA6J58CA-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J58CA-TR requirements.
6.How does Aetrix verify that SMA6J58CA-TR is sourced from the original manufacturer or authorized distributors?
All SMA6J58CA-TR 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 SMA6J58CA-TR meets industry standards.
7.What is the process for return or replacement of SMA6J58CA-TR?
All SMA6J58CA-TR units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J58CA-TR, 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 SMA6J58CA-TR part is unused and in its original packaging.
Return procedure for SMA6J58CA-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J58CA-TR Tags
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