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Vishay General Semiconductor - Diodes Division SMA5J5.0CAHM3/H
- Part No.:
- SMA5J5.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0CAHM3/H.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,380
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Product details
Overview
SMA5J5.0CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients 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), 54.3 V clamping voltage at 9.2 A peak pulse current, and operates from –55 °C to +150 °C. It is used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMA5J5.0CAHM3/H datasheet, SMA5J5.0CAHM3/H pinout, SMA5J5.0CAHM3/H application, or SMA5J5.0CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (via HM3 suffix), 500 W surge rating, low clamping ratio (VC/VBR ≈ 8.5), and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This device functions as a voltage-clamping protector that responds within picoseconds to transient overvoltages, diverting surge current away from downstream ICs. Its bidirectional architecture enables symmetrical clamping in both polarities without external polarity management, making it suitable for AC-coupled or floating signal paths.
The SMA5J5.0CAHM3/H uses a glass-passivated silicon junction and meets MSL Level 1 (260 °C reflow peak), supporting lead-free soldering per J-STD-002. Its thermal resistance (RθJA = 80 °C/W) and junction-to-lead (RθJL = 25 °C/W) are defined for mounting on minimum recommended pad layout per Vishay spec.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected line. |
| VBR (min/max) | 6.4 V / 7.07 V at 10 mA - Confirmed breakdown threshold range; ensures reliable turn-on above normal operating voltage. |
| VC @ IPPM | 54.3 V at 9.2 A - Clamped voltage during 10/1000 µs surge; limits stress on downstream MOSFETs or logic inputs. |
| PPPM | 500 W - Peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm × 4.50 mm footprint; compatible with standard pick-and-place and reflow profiles. |
| Polarity | Bidirectional - No cathode marking; symmetric clamping behavior eliminates orientation concerns in PCB layout. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant. Dimensions: 5.28 mm × 4.50 mm × 2.29 mm (L × W × H). Polarity: unmarked - bidirectional configuration has no anode/cathode designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Transient current path | Both terminals serve identically as surge current entry/exit points; no DC bias dependency required. |
| Case | Thermal conduction path | Plastic body provides electrical isolation while enabling heat transfer via PCB copper pads (0.2" × 0.2" per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and humidity exposure; prevents leakage drift in harsh environments. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges; improves clamping precision for fast transients like ESD or inductive kick. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JESD201 Class 2 whisker resistance requirements. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Withstands 500 W surges while limiting clamped voltage to 54.3 V, preserving integrity of 5 V rail-tied transceivers and ADC front-ends. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils or motor drives. IC Role / Device Role / Timing Role: Standoff-rated protector across 24 V DC input lines, activated only during >6.4 V transients to avoid false triggering. Use Value: 5.0 V VWM allows full utilization of 24 V logic margin; bidirectional symmetry accommodates reversed wiring or AC-coupled inputs. |
| Consumer USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level protection on USB 2.0 data lines (D+/D−) against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <100 pF at 0 V) placed adjacent to connector to minimize signal distortion. Use Value: Fast response time and 54.3 V clamping prevent latch-up in USB PHY ICs during ±8 kV contact ESD per IEC 61000-4-2. | Use Scenario: Primary surge protection on POTS or xDSL line interface circuits exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamp ahead of transformer or hybrid circuit, absorbing bulk energy before secondary protection stages. Use Value: 500 W rating handles 10/1000 µs surges up to 9.2 A; DO-214AC package enables robust PCB trace routing for high-current paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J5.0CAHE3/H | RoHS-compliant but not halogen-free; lacks JESD201 Class 2 whisker resistance certification. | Approved for commercial-grade automotive use but not for halogen-free mandated systems (e.g., EU Tier 1 supply chains). | Select when halogen-free content is not required and cost sensitivity outweighs material compliance constraints. |
| SMBJ5.0CA | Same VWM/VBR/PPPM specs but in larger SMB (DO-214AA) package; RθJA = 65 °C/W vs. 80 °C/W. | Higher thermal performance allows higher sustained surge duty cycles; requires 25% more board area. | Choose when thermal derating at elevated ambient temperatures is critical and PCB space permits larger footprint. |
Compared with SMA5J5.0CAHE3/H and SMBJ5.0CA, the SMA5J5.0CAHM3/H uniquely combines halogen-free construction, AEC-Q101 qualification, and compact SMA packaging-making it optimal for space-constrained, environmentally regulated automotive and industrial designs where both reliability and regulatory compliance are mandatory.
Availability
SMA5J5.0CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card surge protection requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J5.0CAHM3/H 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, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade components.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 qualification and consistent clamping performance are essential.
FAQ
What does the "HM3" suffix indicate in SMA5J5.0CAHM3/H?
The "HM3" suffix in SMA5J5.0CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with JEDEC JESD201 Class 2 whisker resistance testing and suitability for automotive applications requiring stringent material and reliability standards. The "H" revision code indicates the specific manufacturing lot revision per Vishay's ordering nomenclature.
Is SMA5J5.0CAHM3/H unidirectional or bidirectional?
SMA5J5.0CAHM3/H is a bidirectional TVS diode, as confirmed by the "CA" suffix in its part number. It provides symmetrical clamping in both polarities with no cathode band marking, enabling use on AC-coupled lines or floating signals without polarity-sensitive placement. Its electrical characteristics-including VBR, VC, and IPPM-are specified identically for both directions.
What is the maximum clamping voltage for SMA5J5.0CAHM3/H at rated surge current?
The maximum clamping voltage (VC) for SMA5J5.0CAHM3/H is 54.3 V at 9.2 A peak pulse current (IPPM), measured under the standardized 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88875, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Can SMA5J5.0CAHM3/H be used in place of a unidirectional TVS like SMA5J5.0A?
No-SMA5J5.0CAHM3/H is not a drop-in replacement for unidirectional SMA5J5.0A due to fundamental polarity differences. While both share identical VWM (5.0 V) and PPPM (500 W), the unidirectional version conducts forward current and requires correct cathode orientation, whereas SMA5J5.0CAHM3/H is bidirectional and unmarked. Substitution would require verifying system-level polarity tolerance and clamping symmetry requirements.
What is the thermal resistance specification for SMA5J5.0CAHM3/H?
SMA5J5.0CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W, measured under standard conditions: mounted on 0.2" × 0.2" copper pads per terminal. These values assume convection cooling only and must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet.
SMA5J5.0CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J5.0CAHM3/H FAQ
1.How can I place an order for SMA5J5.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0CAHM3/H 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 SMA5J5.0CAHM3/H reliable?
The price and inventory of SMA5J5.0CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J5.0CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J5.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0CAHM3/H?
SMA5J5.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0CAHM3/H 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 SMA5J5.0CAHM3/H?
For technical support, including SMA5J5.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0CAHM3/H requirements.
6.How does Aetrix verify that SMA5J5.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0CAHM3/H 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 SMA5J5.0CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J5.0CAHM3/H?
All SMA5J5.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0CAHM3/H, 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 SMA5J5.0CAHM3/H part is unused and in its original packaging.
Return procedure for SMA5J5.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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