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Vishay General Semiconductor - Diodes Division SMA5J16CAHE3H/H
- Part No.:
- SMA5J16CAHE3H/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16CAHE3H/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,420
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Product details
Overview
SMA5J16CAHE3H/H 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 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 500 W peak pulse power (PPPM), and clamps transients to ≤26.0 V at 19.2 A IPPM - used in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the SMA5J16CAHE3H/H datasheet, SMA5J16CAHE3H/H pinout, SMA5J16CAHE3H/H application, or SMA5J16CAHE3H/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 500 W 10/1000 µs surge rating, low clamping voltage under rated surge current, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns) to ESD and lightning-induced transients.
Thermal design relies on low RθJA (80 °C/W) and RθJL (25 °C/W), with derating applied above TA = 25 °C per Fig. 2. The device is qualified to AEC-Q101 and rated for TJ = –55 °C to +150 °C, supporting under-hood automotive environments and industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 17.8 V / 19.7 V at IT = 1 mA - guaranteed breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | ≤26.0 V at 19.2 A - clamping voltage during 10/1000 µs surge; limits downstream IC stress below 26 V under full-rated transient. |
| PPPM | 500 W - peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge immunity. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at stand-off voltage; avoids signal distortion or bias shift in high-impedance sensor circuits. |
| TJ max | +150 °C - maximum junction temperature; enables placement near heat sources in automotive ECUs and motor drives. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; connects across protected line and ground (or between differential lines) without orientation constraint. |
| Case (body) | Thermal and mechanical interface | Plastic-molded body meets UL 94 V-0; copper pad layout per datasheet (0.2" × 0.2") required for rated PPPM and thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, and ungrounded sensor outputs without external polarity management. |
| AEC-Q101 qualification | Validated reliability for automotive applications including engine control modules, ADAS camera links, and infotainment power rails. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses), improving protection margin for sensitive analog front-ends. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required prior to assembly. |
| Glass-passivated junction | Ensures long-term stability of VBR and ID over temperature and lifetime, critical for industrial equipment with >10-year service life. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between signal line and chassis ground, absorbing energy before it reaches MCU GPIO or analog-to-digital converter inputs. Use Value: Maintains signal integrity during 12 V system load dump events (ISO 16750-2) by limiting voltage to ≤26.0 V while surviving 500 W surges. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs against EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Differential-line TVS connected across A/B bus lines, providing symmetrical clamping without disrupting DC bias or common-mode range. Use Value: Prevents latch-up or permanent damage to transceivers during IEC 61000-4-4 EFT (4 kV) events due to sub-1 ns response and low clamping voltage. |
| Telecom Line Conditioning | Consumer Power Adapter Input |
Use Scenario: Surge suppression on POTS or DSL line interfaces exposed to lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level protector mounted at connector entry point, shunting high-energy transients before reaching isolation transformers or line drivers. Use Value: Withstands 10/1000 µs surges up to 19.2 A while maintaining ≤26.0 V clamping - compatible with GR-1089-CORE Level 3 requirements. |
Use Scenario: Input-stage transient protection for AC-DC adapters in smart home hubs and IoT gateways subjected to mains-borne surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk input capacitor, clamping line-to-ground transients before rectifier and controller ICs. Use Value: RoHS-compliant and AEC-Q101-qualified construction ensures supply chain continuity and reliability certification alignment for global consumer certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16CAHM3H/H | Halogen-free variant; identical electrical specs and AEC-Q101 qualification; same SMA package and MSL level. | Required where halogen-free compliance (IEC 61249-2-21) is mandated for printed circuit board assemblies. | Select SMA5J16CAHM3H/H when environmental compliance mandates halogen-free materials without compromising surge performance. |
| SMA6J16CAHE3/A | 600 W PPPM rating (vs. 500 W); same VWM/VBR/VC; larger SMA package footprint (DO-214AC vs. DO-214AC - same outline but higher surge margin). | Used where higher surge immunity (e.g., IEC 61000-4-5 Level 4) is required beyond standard 500 W duty. | Choose SMA6J16CAHE3/A only if system-level testing confirms need for >500 W surge handling; otherwise SMA5J16CAHE3H/H offers optimal cost/performance balance. |
Compared with SMA5J16CAHE3H/H, SMA5J16CAHM3H/H provides identical protection performance with halogen-free construction, while SMA6J16CAHE3/A delivers 20 % higher peak pulse power at the cost of slightly reduced board-area efficiency - making SMA5J16CAHE3H/H the preferred choice for AEC-Q101-compliant 500 W applications with standard RoHS requirements.
Availability
SMA5J16CAHE3H/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, and telecom line conditioning requiring stable component supply, AEC-Q101 qualification, and RoHS compliance.
Supply support for SMA5J16CAHE3H/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered for high-power-density transient suppression in automotive, industrial, and communications infrastructure where robustness and AEC-Q101 validation are mandatory.
FAQ
What is the polarity configuration of SMA5J16CAHE3H/H?
SMA5J16CAHE3H/H is a bidirectional TVS diode with symmetrical terminal behavior - no cathode band or polarity marking. Both terminals serve identically as conduction paths during positive or negative transients, making it ideal for AC-coupled or differential signal protection without orientation constraints during placement.
Is SMA5J16CAHE3H/H qualified for automotive use?
Yes, SMA5J16CAHE3H/H carries AEC-Q101 qualification (as indicated by the "HE3" suffix), validating its reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. It operates across –55 °C to +150 °C and meets MSL Level 1 reflow requirements.
What is the maximum clamping voltage of SMA5J16CAHE3H/H under surge conditions?
The maximum clamping voltage VC of SMA5J16CAHE3H/H is 26.0 V at 19.2 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during full-rated transient events.
Does SMA5J16CAHE3H/H require special PCB layout considerations?
Yes - to achieve rated 500 W peak pulse power, SMA5J16CAHE3H/H must be mounted on minimum recommended copper pads: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal. Smaller pads reduce thermal dissipation and cause premature failure under surge stress, as confirmed in Fig. 2 derating curves.
How does SMA5J16CAHE3H/H differ from unidirectional variants like SMA5J16AHE3H/H?
SMA5J16CAHE3H/H is bidirectional with symmetrical VBR and clamping in both directions, while SMA5J16AHE3H/H is unidirectional (cathode-marked) and conducts only during reverse-biased transients. The "CA" suffix explicitly denotes bidirectional functionality, essential for protecting AC signals or floating differential lines where polarity is undefined.
SMA5J16CAHE3H/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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 19.2A
- 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)
SMA5J16CAHE3H/H FAQ
1.How can I place an order for SMA5J16CAHE3H/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16CAHE3H/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 SMA5J16CAHE3H/H reliable?
The price and inventory of SMA5J16CAHE3H/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16CAHE3H/H is usually 5 days.
3.What payment methods are accepted for SMA5J16CAHE3H/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16CAHE3H/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16CAHE3H/H?
SMA5J16CAHE3H/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16CAHE3H/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 SMA5J16CAHE3H/H?
For technical support, including SMA5J16CAHE3H/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16CAHE3H/H requirements.
6.How does Aetrix verify that SMA5J16CAHE3H/H is sourced from the original manufacturer or authorized distributors?
All SMA5J16CAHE3H/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 SMA5J16CAHE3H/H meets industry standards.
7.What is the process for return or replacement of SMA5J16CAHE3H/H?
All SMA5J16CAHE3H/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16CAHE3H/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 SMA5J16CAHE3H/H part is unused and in its original packaging.
Return procedure for SMA5J16CAHE3H/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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