My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J6.5CAHM3/I
- Part No.:
- SMA5J6.5CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5CAHM3/I.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,167
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J6.5CAHM3/I 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 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR at 10 mA), 500 W peak pulse power (10/1000 µs), clamping voltage of 11.2 V at 44.6 A, and operates from −55 °C to +150 °C junction temperature.
For engineers reviewing the SMA5J6.5CAHM3/I datasheet, SMA5J6.5CAHM3/I pinout, SMA5J6.5CAHM3/I application, or SMA5J6.5CAHM3/I equivalent, this device is selected for robust ESD and lightning surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line drivers where bidirectional clamping and AEC-Q101 qualification are required.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive transients. Its symmetrical I-V characteristics enable identical protection in both polarities without polarity marking.
Rated for 500 W peak pulse power with 10/1000 µs waveform and derated above 25 °C, it delivers 44.6 A peak pulse current while maintaining ≤11.2 V clamping. Thermal resistance is 80 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system margin for normal operation. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown range ensures reliable turn-on across process variation and temperature. |
| VC @ IPPM | 11.2 V at 44.6 A - Clamping voltage limits downstream IC stress during 500 W surge events. |
| PPPM | 500 W - Peak pulse power rating defines maximum transient energy absorption capability per IEEE C62.35. |
| TJ range | −55 °C to +150 °C - Full automotive-grade thermal operating envelope supports under-hood and industrial environments. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint, compatible with automated placement and reflow. |
Pinout & Package
SMA (DO-214AC) package: two-terminal, bidirectional device with no polarity marking; terminals are matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical bidirectional clamping behavior - either terminal serves as input or return; no cathode band marking. |
| Case (body) | Thermal and mechanical interface | Plastic body meets UL 94 V-0; thermal path relies on PCB copper pad area (5.0 mm × 5.0 mm recommended per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental compliance requirements without compromising surge performance. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a). |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains 6.5 V stand-off while clamping to ≤11.2 V during 500 W surges, preserving signal integrity and preventing latch-up in downstream op-amps or ADCs. |
Use Scenario: Safeguarding PLC digital input channels exposed to 24 V DC field wiring subject to relay coil flyback and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each input line, mounted adjacent to connector to minimize trace inductance. Use Value: Fast sub-nanosecond response and symmetrical clamping ensure equal protection against positive and negative transients without polarity dependency. |
| Telecom Line Driver Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from induced surges on long cable runs in building automation networks. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode chokes but before transceiver pins to absorb differential-mode surges. Use Value: 500 W rating and 11.2 V clamping allow compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV) testing without derating. |
Use Scenario: Input-stage surge suppression in AC-DC adapters for smart home devices subjected to mains-borne transients. IC Role / Device Role / Timing Role: First-line defense on primary-side DC bus (post-bridge rectifier) to prevent capacitor overvoltage and MOSFET avalanche failure. Use Value: Halogen-free HM3 construction supports sustainability goals while delivering same electrical performance as legacy variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5CAHE3/I | RoHS-compliant but not halogen-free; AEC-Q101 qualified; same VWM, VBR, PPPM, and package. | Acceptable for automotive use where halogen content is unrestricted; lower cost than HM3 variant. | Select when halogen-free requirement is absent and cost optimization is prioritized. |
| SMB5J6.5CAHM3/5A | Same electrical specs but SMB (DO-214AA) package - 5.28 mm × 4.50 mm vs. SMA's 4.93 mm × 3.99 mm; 600 W PPPM rating. | Higher power handling and larger thermal pad area; requires PCB layout change due to larger footprint. | Choose when higher surge margin is needed and board space allows SMB footprint. |
Compared with SMA5J6.5CAHM3/I, the HE3 variant trades halogen-free compliance for cost efficiency while retaining AEC-Q101 qualification, whereas the SMB5J6.5CAHM3/5A offers increased power headroom at the expense of larger board area and non-drop-in replacement.
Availability
SMA5J6.5CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial programmable logic controllers, and telecom line driver circuits requiring stable component supply with full AEC-Q101 and halogen-free compliance.
Supply support for SMA5J6.5CAHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments, targeting automotive, industrial, and communications systems where compact size, AEC-Q101 validation, and repeatable clamping are critical.
FAQ
What is the clamping voltage of the SMA5J6.5CAHM3/I under maximum rated surge current?
The SMA5J6.5CAHM3/I clamps to a maximum of 11.2 V when subjected to its peak pulse current of 44.6 A (10/1000 µs waveform). This value is measured and guaranteed per the Vishay datasheet revision 09-Jan-2024, Document Number 88875, and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The SMA5J6.5CAHM3/I maintains this clamping performance across its full operating temperature range.
Is the SMA5J6.5CAHM3/I suitable for automotive applications?
Yes, the SMA5J6.5CAHM3/I is AEC-Q101 qualified and specifically designated for automotive use, as indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It is validated for under-hood and cabin applications including sensor interfaces, body control modules, and infotainment power rails where bidirectional surge immunity is required.
Does the SMA5J6.5CAHM3/I have polarity markings?
No, the SMA5J6.5CAHM3/I is a bidirectional TVS diode and carries no polarity marking - there is no cathode band or other visual indicator on the SMA (DO-214AC) package. Its symmetrical construction means either terminal may be connected to the line or ground side of the protected circuit without affecting clamping behavior.
What is the thermal resistance of the SMA5J6.5CAHM3/I?
The SMA5J6.5CAHM3/I 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, per the Vishay datasheet. This value assumes standard JEDEC test conditions and is critical for calculating junction temperature rise during repeated surge events or elevated ambient operation.
How does the HM3 suffix differ from the HE3 suffix in the SMA5J6.5CAHM3/I part number?
The "HM3" suffix in SMA5J6.5CAHM3/I indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas "HE3" denotes RoHS-compliant and AEC-Q101 qualified but not halogen-free. Both share identical electrical specifications and package dimensions, but HM3 meets stricter environmental mandates applicable to certain automotive and consumer markets.
SMA5J6.5CAHM3/I 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 44.6A
- 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)
SMA5J6.5CAHM3/I FAQ
1.How can I place an order for SMA5J6.5CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5CAHM3/I 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 SMA5J6.5CAHM3/I reliable?
The price and inventory of SMA5J6.5CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J6.5CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5CAHM3/I?
SMA5J6.5CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5CAHM3/I 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 SMA5J6.5CAHM3/I?
For technical support, including SMA5J6.5CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5CAHM3/I requirements.
6.How does Aetrix verify that SMA5J6.5CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5CAHM3/I 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 SMA5J6.5CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J6.5CAHM3/I?
All SMA5J6.5CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5CAHM3/I, 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 SMA5J6.5CAHM3/I part is unused and in its original packaging.
Return procedure for SMA5J6.5CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J6.5CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
