My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J9.0CA-M3/5A
- Part No.:
- SMA5J9.0CA-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J9.0CA-M3/5A.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J9.0CA-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 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage (VC) at 5.0 A peak pulse current, and 500 W peak pulse power rating - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J9.0CA-M3/5A datasheet, SMA5J9.0CA-M3/5A pinout, SMA5J9.0CA-M3/5A application, or SMA5J9.0CA-M3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.71), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This device operates 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 breakdown characteristics and low leakage (<1.0 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The SMA5J9.0CA-M3/5A delivers 500 W peak pulse power under 10/1000 µs waveform with 15.4 V clamping at 5.0 A, and exhibits thermal resistance of 80 °C/W (junction-to-ambient) when mounted on 5.0 mm × 5.0 mm copper pads - critical for sustained transient handling in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level overvoltage trip threshold. |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA - Confirmed avalanche onset range ensuring reliable triggering across temperature and unit variation. |
| VC @ IPPM | 15.4 V at 5.0 A - Clamped voltage during 10/1000 µs surge; defines worst-case stress on downstream ICs. |
| PPPM | 500 W - Peak surge energy absorption capacity; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | <1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max | +150 °C - Maximum junction temperature allowing operation in under-hood automotive and industrial enclosures. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with automated pick-and-place. |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking. Cathode band absent per bidirectional construction. 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 shunt path | Either terminal serves as input/output; bidirectional clamping eliminates orientation constraints during layout. |
| Case (anodic/cathodic junction) | Junction heat sink | Thermal path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal for rated 500 W dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection on AC-coupled or floating lines (e.g., RS-485, CAN, sensor bridges) without polarity concerns. |
| Halogen-free & RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake requirements pre-assembly. |
| AEC-Q101 qualification pathway | HM3 variant (e.g., SMA5J9.0CAHM3_A/I) is qualified for automotive applications including engine control and ADAS sensors. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS diode clamping transients before they reach ADC input or op-amp buffer stages. Use Value: Maintains signal fidelity by limiting induced voltage to ≤15.4 V during 5 A surges, preventing ADC saturation or latch-up. |
Use Scenario: Safeguarding 24 V DC digital input cards in PLCs against field-wiring faults and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Bidirectional voltage clamp absorbing positive/negative transients on isolated input channels. Use Value: Eliminates need for separate unidirectional devices per polarity, reducing BOM count and board space by 50%. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced common-mode surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Common-mode TVS placed across differential pair to clamp mode conversion transients. Use Value: Withstands 500 W surges while maintaining <1.0 µA leakage, preserving bus bias stability and data integrity. |
Use Scenario: Guarding VBUS and D+/D− lines in portable medical monitors against ESD events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp suppressing ESD without distorting USB 2.0 signal edges. Use Value: Clamps sub-100 ns ESD spikes to <15.4 V within 1 ns response time, preventing PHY layer damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J9.0CA-E3/5A | RoHS-compliant but not halogen-free; same electrical specs and package; uses matte tin plating per J-STD-002. | Preferred for commercial-grade industrial equipment where halogen content is unrestricted. | Select E3 for cost-sensitive non-automotive designs requiring standard RoHS compliance without halogen-free mandate. |
| SMA5J9.0CAHM3_A/I | Identical electrical specs and SMA package; adds AEC-Q101 qualification, extended temperature validation (-55 °C to +150 °C), and enhanced reliability screening. | Required for automotive ECUs, ADAS camera modules, and chassis electronics subject to OEM qualification. | Choose HM3 when automotive qualification, long-term reliability under thermal cycling, or zero-defect field performance is mandatory. |
Compared with SMA5J9.0CA-M3/5A, the E3 variant offers identical protection performance at lower cost for non-halogen-restricted applications, while the HM3 variant adds AEC-Q101 validation and extended reliability testing - making it essential for automotive deployment but unnecessary for commercial sensor nodes.
Availability
SMA5J9.0CA-M3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply, halogen-free compliance, and high-energy surge immunity.
Supply support for SMA5J9.0CA-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 targets high-power-density transient suppression in space-constrained applications - engineered for automotive, industrial, and telecom systems demanding robust 500 W surge handling in DO-214AC footprint.
FAQ
What is the clamping voltage of the SMA5J9.0CA-M3/5A at its rated peak pulse current?
The SMA5J9.0CA-M3/5A has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J9.0CA-M3/5A maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is the SMA5J9.0CA-M3/5A suitable for automotive applications?
The SMA5J9.0CA-M3/5A itself is halogen-free and RoHS-compliant but not AEC-Q101 qualified. However, Vishay offers the functionally identical SMA5J9.0CAHM3_A/I variant - which shares the same electrical specs and SMA package - with full AEC-Q101 qualification for automotive use. For production automotive ECUs, the HM3 version must be specified; the M3 variant remains appropriate for non-qualified industrial or consumer designs.
How does the bidirectional design of the SMA5J9.0CA-M3/5A affect PCB layout?
The SMA5J9.0CA-M3/5A has no polarity marking and symmetric terminal behavior, so PCB layout requires no orientation alignment - either end connects to line or return. This simplifies routing on differential pairs (e.g., CAN, RS-485) and eliminates risk of reverse installation. Layout must still provide 5.0 mm × 5.0 mm copper pads per terminal to sustain 500 W surge dissipation, as specified in Vishay's mounting recommendations.
What is the maximum leakage current of the SMA5J9.0CA-M3/5A at its stand-off voltage?
The SMA5J9.0CA-M3/5A exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 9.0 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal loading on high-impedance sensor outputs and preserves battery runtime in always-on monitoring systems. Leakage remains below 5.0 µA up to +125 °C per Vishay's derating curves.
Does the SMA5J9.0CA-M3/5A meet moisture sensitivity level requirements for lead-free reflow?
Yes, the SMA5J9.0CA-M3/5A meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This allows indefinite floor life and direct placement into standard reflow ovens without baking or dry-pack handling. The device's molding compound complies with UL 94 V-0 flammability rating, supporting safety-critical industrial and automotive assembly processes.
SMA5J9.0CA-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 32.5A
- 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)
SMA5J9.0CA-M3/5A FAQ
1.How can I place an order for SMA5J9.0CA-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J9.0CA-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 SMA5J9.0CA-M3/5A reliable?
The price and inventory of SMA5J9.0CA-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 SMA5J9.0CA-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J9.0CA-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J9.0CA-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J9.0CA-M3/5A?
SMA5J9.0CA-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J9.0CA-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 SMA5J9.0CA-M3/5A?
For technical support, including SMA5J9.0CA-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J9.0CA-M3/5A requirements.
6.How does Aetrix verify that SMA5J9.0CA-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J9.0CA-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 SMA5J9.0CA-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J9.0CA-M3/5A?
All SMA5J9.0CA-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J9.0CA-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 SMA5J9.0CA-M3/5A part is unused and in its original packaging.
Return procedure for SMA5J9.0CA-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J9.0CA-M3/5A 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 …
