My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ9.0CA-M3/61
- Part No.:
- SMAJ9.0CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ9.0CA-M3/61.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,527
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ9.0CA-M3/61 from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal or power lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V maximum clamping voltage (VC) at 26.0 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 μs waveform), commonly deployed to protect MOSFET gates and sensor I/O lines in automotive body control modules.
For engineers reviewing the SMAJ9.0CA-M3/61 datasheet, SMAJ9.0CA-M3/61 pinout, SMAJ9.0CA-M3/61 application, or SMAJ9.0CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.71), MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
This device operates as a silicon avalanche diode with symmetrical bidirectional conduction-no polarity marking required-and delivers sub-nanosecond response to ESD and lightning-induced surges. Its glass-passivated junction ensures stable leakage (<5.0 μA at VWM) and low incremental surge resistance, enabling consistent clamping performance across temperature (−55 °C to +150 °C).
The SMAJ9.0CA-M3/61 is rated for 400 W peak pulse power up to 78 V and derates to 300 W above that threshold; thermal resistance is 120 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for 9 V nominal rails. |
| VBR min/max | 10.0 V / 11.1 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 15.4 V at 26.0 A - Clamping voltage under 10/1000 μs surge; limits downstream stress to ≤15.4 V during worst-case transients. |
| PPPM | 400 W (≤78 V), 300 W (>78 V) - Peak pulse power handling per JEDEC standard; supports repetitive surge events at 0.01% duty cycle. |
| ID @ VWM | ≤5.0 μA - Reverse leakage at stand-off voltage; negligible power loss and signal integrity impact in high-impedance interfaces. |
| TJ max | +150 °C - Maximum junction temperature rating enables use in under-hood automotive environments and industrial enclosures. |
| Package | SMA (DO-214AC) - Surface-mount outline with 0.208" length, compatible with automated placement and reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMA (DO-214AC), bidirectional configuration - no cathode/anode marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity - enables single-device protection of AC or differential lines. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR - eliminates need for orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled, differential, or floating signal lines without polarity concerns. |
| 400 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) when properly laid out with 5 mm² copper pads. |
| MSL Level 1, 260 °C peak reflow | Eliminates bake requirements prior to assembly - supports standard lead-free SMT processes without moisture damage risk. |
| Halogen-free, RoHS-compliant (M3) | Fulfills environmental compliance mandates for automotive and industrial OEMs without compromising surge robustness. |
| AEC-Q101 qualified option (HM3) | Validated for automotive applications including engine control units and ADAS sensor interfaces requiring extended reliability. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and door actuator drivers from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role: Bidirectional TVS placed across LIN signal pair and supply rail to clamp ±100 V transients within 1 ns. Use Value: Prevents latch-up or permanent damage to transceivers by limiting clamped voltage to 15.4 V while absorbing 400 W surges. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in PLC analog input modules exposed to field wiring surges. IC Role / Device Role: TVS connected between loop terminals and ground to shunt induced common-mode transients before reaching op-amp front-end. Use Value: Maintains signal fidelity with <5 μA leakage at 9 V, and clamps 1 kV/0.5 J surges to safe levels without affecting loop accuracy. |
| Consumer USB-C Port ESD Protection | Telecom DSL Line Transient Suppression |
|
Use Scenario: Secondary-level ESD protection on USB-C CC and VCONN lines where primary TVS is upstream. IC Role / Device Role: Bidirectional clamping device placed directly at connector to suppress ±15 kV contact discharge (IEC 61000-4-2). Use Value: Sub-nanosecond response and low clamping ratio (1.71) prevent overshoot beyond receiver IC absolute maximum ratings. |
Use Scenario: Protecting ADSL/VDSL line interface ICs from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role: TVS mounted across tip/ring pair to divert longitudinal surges exceeding 1 kV while preserving signal integrity below 30 MHz. Use Value: Low junction capacitance (<100 pF at VWM) avoids attenuation of high-frequency DSL signals up to 30 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0CA-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free; uses matte tin plating without halogen restriction. | Preferred for commercial-grade consumer electronics where halogen-free requirement is not mandated. | Select E3 for cost-sensitive non-automotive designs; M3 required for automotive Tier 1 compliance. |
| SMAJ9.0A-M3/61 | Unidirectional version; includes cathode band marking; forward voltage drop (VF = 3.5 V @ 25 A) applies only in forward conduction. | Suitable only for DC-biased lines with known polarity (e.g., 12 V supply rail); cannot protect AC or floating signals. | Choose unidirectional SMAJ9.0A-M3/61 only when circuit polarity is fixed and reverse conduction must be blocked. |
Compared with SMAJ9.0CA-M3/61, the E3 variant offers identical surge performance at lower material cost but lacks halogen-free certification, while the unidirectional SMAJ9.0A-M3/61 restricts design flexibility by requiring polarity-aware layout and omitting symmetrical clamping - making SMAJ9.0CA-M3/61 the optimal choice for bidirectional or polarity-agnostic protection.
Availability
SMAJ9.0CA-M3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer USB-C port hardening, and telecom DSL line protection requiring stable component supply and full traceability.
Supply support for SMAJ9.0CA-M3/61 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 efficiency, and automotive qualification.
The SMAJ series is engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where high-energy surge immunity and long-term stability are critical.
FAQ
What is the clamping voltage of SMAJ9.0CA-M3/61 at its rated peak pulse current?
The SMAJ9.0CA-M3/61 has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPPM) of 26.0 A, measured with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components see no more than 15.4 V during surge events. The clamping ratio (VC/VWM = 1.71) reflects efficient energy diversion without excessive overvoltage.
Is SMAJ9.0CA-M3/61 suitable for automotive applications?
Yes, SMAJ9.0CA-M3/61 is halogen-free and RoHS-compliant, and its AEC-Q101-qualified variant (SMAJ9.0CA-HM3/61) is explicitly certified for automotive use. Even the standard M3 version meets key automotive requirements including MSL Level 1, 260 °C reflow tolerance, and UL 497B recognition - making SMAJ9.0CA-M3/61 appropriate for body control, infotainment, and sensor modules in passenger vehicles.
How does the bidirectional design of SMAJ9.0CA-M3/61 affect PCB layout?
The bidirectional design of SMAJ9.0CA-M3/61 eliminates polarity constraints - there is no cathode band or marking, so either terminal connects to either side of the protected line. This simplifies layout for differential pairs, AC-coupled signals, or floating buses, removes orientation verification during assembly, and avoids costly rework due to reversed placement. No silkscreen polarity indicator is needed.
What is the maximum reverse leakage current of SMAJ9.0CA-M3/61 at its stand-off voltage?
The SMAJ9.0CA-M3/61 exhibits a maximum reverse leakage current (ID) of 5.0 μA at its 9.0 V stand-off voltage (VWM), tested at 25 °C. This ultra-low leakage ensures minimal power drain in battery-operated systems and prevents signal distortion in high-impedance sensor interfaces - critical for precision analog front-ends and always-on monitoring circuits.
Does SMAJ9.0CA-M3/61 require derating above ambient temperature?
Yes, SMAJ9.0CA-M3/61 requires thermal derating above 25 °C ambient. Its peak pulse power rating drops linearly per Figure 2 in the datasheet: at 70 °C ambient, the 400 W rating reduces to approximately 280 W. Derating is based on junction-to-ambient thermal resistance (RθJA = 120 °C/W) and must be applied when designing for sustained high-temperature environments like under-hood automotive locations.
SMAJ9.0CA-M3/61 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 26A
- Power - Peak Pulse:
- 400W
- 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)
SMAJ9.0CA-M3/61 FAQ
1.How can I place an order for SMAJ9.0CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ9.0CA-M3/61 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 SMAJ9.0CA-M3/61 reliable?
The price and inventory of SMAJ9.0CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ9.0CA-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ9.0CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ9.0CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ9.0CA-M3/61?
SMAJ9.0CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ9.0CA-M3/61 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 SMAJ9.0CA-M3/61?
For technical support, including SMAJ9.0CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ9.0CA-M3/61 requirements.
6.How does Aetrix verify that SMAJ9.0CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ9.0CA-M3/61 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 SMAJ9.0CA-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ9.0CA-M3/61?
All SMAJ9.0CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ9.0CA-M3/61, 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 SMAJ9.0CA-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ9.0CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ9.0CA-M3/61 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 …
