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Vishay General Semiconductor - Diodes Division SMA5J5.0CA-M3/5A
- Part No.:
- SMA5J5.0CA-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0CA-M3/5A.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,214
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Product details
Overview
SMA5J5.0CA-M3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 µs), clamping voltage of 9.2 V at 54.3 A IPPM, and operates from –55 °C to +150 °C - used in automotive sensor line protection and industrial I/O interface circuits.
For engineers reviewing the SMA5J5.0CA-M3/5A datasheet, SMA5J5.0CA-M3/5A pinout, SMA5J5.0CA-M3/5A application, or SMA5J5.0CA-M3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.84), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This device functions as a voltage-clamped shunt protector with symmetrical avalanche behavior in both polarities, enabling robust ESD and lightning surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<800 µA at VWM), while the low incremental surge resistance supports fast energy diversion during transients.
The SMA5J5.0CA-M3/5A delivers 54.3 A peak pulse current (IPPM) under 10/1000 µs waveform with 9.2 V clamping voltage, achieving a clamping ratio of 1.84 - critical for protecting 5 V logic interfaces. Thermal resistance is 80 °C/W (junction-to-ambient) when mounted on 5.0 mm × 5.0 mm copper pads, supporting sustained operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before conduction begins; matches standard 5 V digital supply rails. |
| VBR min/max | 6.4 V / 7.07 V at 10 mA - tight breakdown window ensures predictable turn-on without premature leakage or delayed clamping. |
| VC @ IPPM | 9.2 V at 54.3 A - clamping voltage stays safely below 10 V, preserving margin for 5 V logic ICs with 12 V absolute max ratings. |
| PPPM | 500 W (10/1000 µs) - sustains high-energy surges common in automotive load-dump and industrial switching environments. |
| ID @ VWM | <800 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max | +150 °C - enables deployment in under-hood automotive and high-temperature industrial enclosures. |
| Package | SMA (DO-214AC) - surface-mount, low-profile package compatible with automated SMT assembly and IPC-7351B land patterns. |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL level 1 rating (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency. |
| Cathode Band (absent) | Polarity indicator | Not present - confirms bidirectional construction; terminals are functionally identical. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, RS-485, sensor bridges) without external polarity management. |
| 500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 5 V buses when properly laid out with 5 mm² copper pads. |
| Halogen-free, RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances in industrial and automotive supply chains. |
| Low clamping ratio (VC/VWM = 1.84) | Minimizes overvoltage stress on downstream 5 V logic, reducing risk of latch-up or gate oxide damage in microcontrollers and transceivers. |
| AEC-Q101 qualification path | HM3 variant (e.g., SMA5J5.0CAHM3_A/I) is qualified per AEC-Q101 Rev D, supporting automotive body electronics and ADAS sensor modules. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp transients before reaching ADC input or op-amp buffer. Use Value: Prevents sensor signal corruption and microcontroller reset events by limiting voltage excursions to ≤9.2 V during 500 W surges. |
Use Scenario: Safeguarding 24 V PLC digital input channels against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminals to absorb both positive and negative polarity transients. Use Value: Eliminates need for dual unidirectional TVS devices, reducing BOM count and PCB area while maintaining full ±500 W surge handling. |
| Consumer USB Port ESD | Telecom Line Card Surge |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D– lines behind primary polymer-based TVS arrays. IC Role / Device Role / Timing Role: Fast-response avalanche diode providing sub-nanosecond clamping to limit HBM/CDM-induced voltage overshoot. Use Value: Achieves <100 ps response time and <9.2 V clamping, meeting IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) requirements. |
Use Scenario: Protecting Ethernet PHY interface pins on telecom base station line cards from lightning-induced surges on RJ-45 ports. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed differential-mode across twisted-pair pairs to suppress common-mode transients. Use Value: Maintains signal integrity with minimal added capacitance while clamping surges up to 54.3 A without degradation over 1000+ events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0CA-E3/5A | Lower PPPM (400 W vs. 500 W); same VWM/VBR/VC; DO-214AC package; RoHS-compliant (E3), not halogen-free. | Limited to lower-energy surge environments (IEC 61000-4-5 Level 3); unsuitable for automotive load-dump where 500 W is required. | Select SMAJ5.0CA-E3/5A only if cost sensitivity outweighs surge margin and halogen-free compliance is not mandated. |
| SMBJ5.0CA-M3/5A | Same electrical specs but SMB (DO-214AA) package - 2.5 mm wider body, higher thermal mass, RθJA = 65 °C/W (vs. 80 °C/W). | Better thermal performance in high-duty-cycle surge scenarios; requires larger PCB footprint (6.2 mm × 4.6 mm vs. 4.6 mm × 2.8 mm). | Choose SMBJ5.0CA-M3/5A when board space allows and junction temperature rise must be minimized under repeated surges. |
Compared with SMAJ5.0CA-E3/5A and SMBJ5.0CA-M3/5A, the SMA5J5.0CA-M3/5A uniquely balances 500 W surge capacity, halogen-free compliance, and minimal SMA footprint - making it optimal for space-constrained automotive and industrial modules requiring AEC-Q101 upgrade path.
Availability
SMA5J5.0CA-M3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer USB port hardening, and telecom line card surge protection requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J5.0CA-M3/5A 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where compact size, 500 W surge capability, and AEC-Q101 readiness are essential.
FAQ
What is the clamping voltage of the SMA5J5.0CA-M3/5A at its rated peak pulse current?
The SMA5J5.0CA-M3/5A has a maximum clamping voltage (VC) of 9.2 V at 54.3 A peak pulse current (IPPM), measured under the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures safe operation for 5 V logic interfaces. The SMA5J5.0CA-M3/5A maintains this clamping performance due to its low incremental surge resistance and symmetrical bidirectional avalanche structure.
Is the SMA5J5.0CA-M3/5A suitable for automotive applications?
Yes - the SMA5J5.0CA-M3/5A is halogen-free and RoHS-compliant (M3 suffix), and its automotive-qualified variant SMA5J5.0CAHM3_A/I is AEC-Q101 qualified. While the M3/5A version itself is commercial-grade, its electrical specs (150 °C TJ max, 500 W PPPM, low leakage) align with automotive sensor and body electronics requirements. The SMA5J5.0CA-M3/5A serves as a direct drop-in candidate for HM3 qualification upgrades.
How does the bidirectional design of the SMA5J5.0CA-M3/5A affect circuit layout?
The SMA5J5.0CA-M3/5A has no polarity marking and functions identically in both directions, simplifying PCB layout by eliminating orientation checks during placement. It can be placed across any two points needing symmetrical overvoltage protection - such as differential signal pairs or AC-coupled lines - without regard to anode/cathode assignment. This reduces assembly errors and supports automated optical inspection. The SMA5J5.0CA-M3/5A's symmetric behavior is confirmed by identical VBR and VC values in both polarities.
What is the thermal resistance of the SMA5J5.0CA-M3/5A, and how does it impact derating?
The SMA5J5.0CA-M3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. At 25 °C ambient, this allows full 500 W pulse power; above 25 °C, power must be linearly derated per Figure 2 in the datasheet. For example, at 85 °C ambient, usable PPPM drops to ~300 W. The SMA5J5.0CA-M3/5A's RθJL is 25 °C/W, supporting efficient heat transfer to PCB copper.
Does the SMA5J5.0CA-M3/5A meet industry surge immunity standards?
Yes - the SMA5J5.0CA-M3/5A meets IEC 61000-4-5 (surge immunity) Level 4 (4 kV line-earth, 2 kV line-line) when applied with proper PCB layout (5 mm² copper pads, short traces). Its 500 W PPPM and 9.2 V clamping voltage enable compliance with ISO 7637-2 Pulse 1/2a/5a for automotive and EN 61000-4-4 (EFT) for industrial equipment. The SMA5J5.0CA-M3/5A's performance is validated per ANSI/IEEE C62.35 definitions for transient suppressors.
SMA5J5.0CA-M3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- Power - Peak Pulse:
- 500W
- 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:
- DO-214AC (SMA)
SMA5J5.0CA-M3/5A FAQ
1.How can I place an order for SMA5J5.0CA-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0CA-M3/5A 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 SMA5J5.0CA-M3/5A reliable?
The price and inventory of SMA5J5.0CA-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J5.0CA-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J5.0CA-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0CA-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0CA-M3/5A?
SMA5J5.0CA-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0CA-M3/5A 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 SMA5J5.0CA-M3/5A?
For technical support, including SMA5J5.0CA-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0CA-M3/5A requirements.
6.How does Aetrix verify that SMA5J5.0CA-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0CA-M3/5A 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 SMA5J5.0CA-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J5.0CA-M3/5A?
All SMA5J5.0CA-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0CA-M3/5A, 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 SMA5J5.0CA-M3/5A part is unused and in its original packaging.
Return procedure for SMA5J5.0CA-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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