My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J5.0CA-E3/5A
- Part No.:
- SMA5J5.0CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0CA-E3/5A.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,100
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J5.0CA-E3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage 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), 54.3 V clamping voltage at 9.2 A peak current, and operates from –55 °C to +150 °C junction temperature - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J5.0CA-E3/5A datasheet, SMA5J5.0CA-E3/5A pinout, SMA5J5.0CA-E3/5A application, or SMA5J5.0CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 10.9), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its symmetrical avalanche structure enables identical electrical characteristics in both polarities, with clamping performance validated under standardized 10/1000 μs waveform testing per ANSI/IEEE C62.35.
The device is rated for 500 W peak pulse power dissipation at TA = 25 °C, derated linearly above that temperature with RθJA = 80 °C/W. It supports unidirectional surge current up to 40 A (8.3 ms half-sine) only in unidirectional variants - not applicable to SMA5J5.0CA-E3/5A due to its bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before significant leakage; defines safe signal swing margin in protected line. |
| VBR min/max | 6.4 V / 7.07 V at IT = 10 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 54.3 V at 9.2 A - clamped voltage during 10/1000 μs transient; determines maximum stress imposed on downstream ICs. |
| PPPM | 500 W - peak transient energy handling capacity; enables protection against IEC 61000-4-5 Level 4 surges when properly mounted. |
| ID @ VWM | 800 μA max - reverse leakage at stand-off voltage; low enough to avoid loading 5 V logic or analog sensor outputs. |
| TJ range | –55 °C to +150 °C - extended thermal operating envelope suitable for under-hood automotive and industrial environments. |
| Package | SMA (DO-214AC) - surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with standard reflow profiles. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case meeting UL 94 V-0 flammability rating. Matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve as interchangeable avalanche junction endpoints; no cathode band marking required for bidirectional operation. |
| Case (plastic body) | Thermal and mechanical interface | Non-conductive housing; thermal path relies on PCB copper pad area (min. 5.0 mm × 5.0 mm per terminal) for RθJA = 80 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal lines. |
| Glass-passivated junction | Enhanced reliability and stable leakage performance over temperature and lifetime vs. epoxy-passivated alternatives. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C / 60 % RH - supports standard SMT assembly without dry pack or baking requirements. |
| AEC-Q101 qualification option | Available in HE3/HM3 variants - this SMA5J5.0CA-E3/5A is commercial grade but shares identical die and package design. |
| Low-profile SMT package | 2.29 mm max height - enables use in space-constrained modules including automotive ECUs and IoT edge nodes. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN transceiver bias lines and Hall-effect sensor supply rails from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Standby-mode voltage clamp that remains non-conductive until transient exceeds 6.4 V, then shunts surge current to ground within <1 ns. Use Value: Prevents latch-up or gate oxide damage in 5 V rail-connected ASICs by limiting excursion to ≤54.3 V during 10/1000 μs surges. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog front-ends in programmable logic controllers exposed to field wiring ESD and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional crowbar element that conducts equally on positive and negative transients, preserving signal integrity in AC-coupled paths. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without adding series impedance or signal distortion. |
| Consumer USB Port Protection | Telecom Line Card Surge Guard |
Use Scenario: Secondary-level transient suppression on VBUS and D+/D– lines of USB 2.0 ports in set-top boxes and smart displays, downstream of primary fuse and common-mode choke. IC Role / Device Role / Timing Role: Fast-response parallel clamp placed adjacent to connector to minimize inductance and maximize let-through voltage control. Use Value: Limits peak differential voltage to 54.3 V during contact discharge ESD events, preventing damage to USB PHY transceivers rated for 6 V absolute max. |
Use Scenario: Primary protection stage on RJ-45 Ethernet PHY interfaces in VoIP gateways and DSLAM line cards subjected to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Symmetrical line-to-line and line-to-ground clamp using dual SMA5J5.0CA devices in bridge configuration. Use Value: Achieves 500 W per line pair handling with matched clamping in both directions - critical for maintaining balanced signaling integrity during surge 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 | Lower PPPM (400 W vs. 500 W); same VWM/VBR/VC specs; identical SMA package and MSL Level 1 rating. | Marginally lower surge energy handling - acceptable for IEC 61000-4-2 ESD and light-duty EFT, but may not sustain repeated 10/1000 μs surges at full rating. | Select SMAJ5.0CA where cost sensitivity outweighs need for highest surge margin and board space is constrained to legacy SMAJ footprints. |
| 1.5SMC5.0CA | Higher PPPM (1500 W); larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); same VWM/VBR/VC; higher thermal mass. | Requires larger PCB area and different stencil design; better suited for high-energy industrial mains input stages than compact signal-line protection. | Choose 1.5SMC5.0CA when protecting AC/DC converter inputs or PoE injectors where 500 W is insufficient and layout allows SMC footprint. |
Compared with SMAJ5.0CA and 1.5SMC5.0CA, the SMA5J5.0CA-E3/5A delivers optimal balance of high surge rating (500 W), compact SMA footprint, and commercial-grade cost - making it preferred for space-limited 5 V system interfaces requiring robust, bidirectional clamping without layout redesign.
Availability
SMA5J5.0CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial analog I/O hardening, and consumer USB port safeguarding requiring stable component supply and full traceability.
Supply support for SMA5J5.0CA-E3/5A 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 qualification.
The SMA5J family was engineered specifically for high-power-density transient suppression in space-constrained, thermally demanding applications - targeting automotive ADAS sensors, industrial automation I/O modules, and next-generation telecom infrastructure.
FAQ
What is the clamping voltage of the SMA5J5.0CA-E3/5A at its rated peak pulse current?
The SMA5J5.0CA-E3/5A has a maximum clamping voltage (VC) of 54.3 V at 9.2 A peak pulse current (IPPM), measured under standardized 10/1000 μs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88875, page 2. The SMA5J5.0CA-E3/5A maintains this clamping performance bidirectionally due to its symmetrical junction design.
Is the SMA5J5.0CA-E3/5A suitable for automotive applications requiring AEC-Q101 qualification?
The SMA5J5.0CA-E3/5A itself is a commercial-grade part (E3 suffix) and not AEC-Q101 qualified. However, Vishay offers functionally identical AEC-Q101 variants under ordering codes SMA5J5.0CAHE3_A/H or SMA5J5.0CAHM3_A/H. These share the same die, package, and electrical specs but undergo additional stress testing per AEC-Q101. For automotive designs requiring qualification, specify the HE3 or HM3 version - the SMA5J5.0CA-E3/5A serves as the baseline commercial reference.
How does the bidirectional nature of the SMA5J5.0CA-E3/5A affect its mounting and PCB layout?
The SMA5J5.0CA-E3/5A has no polarity marking (no cathode band) because its bidirectional structure makes both terminals electrically identical. PCB layout requires symmetric 5.0 mm × 5.0 mm copper pads per terminal to achieve the specified RθJA = 80 °C/W and support 500 W pulse power. Unlike unidirectional TVS diodes, orientation on the board is irrelevant - simplifying automated placement and reducing assembly error risk.
What is the maximum reverse leakage current of the SMA5J5.0CA-E3/5A at its stand-off voltage?
The SMA5J5.0CA-E3/5A exhibits a maximum reverse leakage current (ID) of 800 μA at its 5.0 V stand-off voltage (VWM), measured at TA = 25 °C. This low leakage ensures minimal loading on 5 V logic rails or sensor supply lines while maintaining high impedance during normal operation. Leakage increases with temperature but remains within specification limits up to TJ = 150 °C, as verified in Vishay's thermal derating curves.
Can the SMA5J5.0CA-E3/5A be used in place of a unidirectional TVS like SMA5J5.0A?
No - the SMA5J5.0CA-E3/5A is strictly bidirectional and cannot replace unidirectional types such as SMA5J5.0A in DC-biased circuits requiring forward conduction or polarity-specific clamping. While both share VWM = 5.0 V and similar VBR, the SMA5J5.0A conducts in forward direction (VF = 3.5 V at 25 A) and has a cathode band for orientation. Substituting SMA5J5.0CA-E3/5A in such roles would result in unintended conduction or failure to clamp correctly. Always match polarity type to circuit topology.
SMA5J5.0CA-E3/5A 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-E3/5A FAQ
1.How can I place an order for SMA5J5.0CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0CA-E3/5A 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-E3/5A reliable?
The price and inventory of SMA5J5.0CA-E3/5A 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-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J5.0CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0CA-E3/5A?
SMA5J5.0CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0CA-E3/5A 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-E3/5A?
For technical support, including SMA5J5.0CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J5.0CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0CA-E3/5A 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-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J5.0CA-E3/5A?
All SMA5J5.0CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0CA-E3/5A, 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-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J5.0CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J5.0CA-E3/5A 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 …
