My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SA9.0HE3/54
- Part No.:
- SA9.0HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA9.0HE3/54.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,199
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA9.0HE3/54 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, 15.4 V maximum clamping voltage (VC) at 5.0 A peak pulse current (IPPM), 500 W peak pulse power (PPPM), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA9.0HE3/54 datasheet, SA9.0HE3/54 pinout, SA9.0HE3/54 application, or SA9.0HE3/54 equivalent, this device is selected for robust ESD and surge protection in automotive body control modules, industrial sensor interfaces, and 12 V DC power input stages where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.5), and high surge current tolerance are required.
Technical Context
The SA9.0HE3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transients. Its uni-directional polarity uses a cathode band marking, and it complies with JEDEC JESD22-B106 (solder dip) and JESD201 Class 2 (whisker resistance).
It delivers 500 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, and supports 70 A non-repetitive forward surge current (IFSM) for inductive load switching events. Junction temperature range is –55 °C to +175 °C, matching under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for 12 V nominal rail protection. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 15.4 V at IPPM = 5.0 A - Clamping voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 500 W - Peak transient energy handling capacity; meets ISO 7637-2 Pulse 1 & 2 and IEC 61000-4-5 Level 3 requirements. |
| ID @ VWM | 5.0 µA - Reverse leakage at rated stand-off; negligible power loss in standby, critical for battery-powered systems. |
| TJ max. | +175 °C - Maximum junction temperature; enables placement near heat sources in engine control units. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test standard; supports PPAP documentation. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0. Matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during positive transients on cathode side. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V supply); avalanches into conduction when voltage exceeds VBR, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics over temperature and lifetime; eliminates surface degradation risks in humid environments. |
| 500 W peak pulse power (10/1000 µs) | Handles automotive load dump surges up to 120 V × 4.2 A without failure; exceeds ISO 7637-2 Pulse 5a requirements. |
| AEC-Q101 qualification | Validated for temperature cycling, HTRB, and ESD (HBM ≥ 8 kV), ensuring reliability in safety-critical vehicle subsystems. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., relay coil flyback), reducing risk of latch-up in downstream logic. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and EU RoHS Directive 2011/65/EU; suitable for lead-free reflow and wave soldering. |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protects LIN bus transceivers and microcontroller I/O pins from load dump and ESD events in door module PCBs. IC Role / Device Role: Primary clamping element on 12 V supply rail and bidirectional LIN data line (with external series resistor). Use Value: Limits clamped voltage to ≤15.4 V, preventing damage to 16 V-rated MCU GPIOs and maintaining communication integrity during ±25 kV ESD contact discharge. |
Use Scenario: Shields 4–20 mA current loop receiver inputs from field-induced surges in factory automation PLC analog input cards. IC Role / Device Role: First-stage TVS on signal line before precision op-amp buffer and ADC driver. Use Value: Clamps 1 kV/500 A surge (IEC 61000-4-5) to <16 V, preserving 24 V system headroom and avoiding op-amp saturation or latch-up. |
| DC Power Input Stage (12 V) | Consumer Appliance Motor Driver Protection |
Use Scenario: Installed across input terminals of switching regulators in automotive infotainment power supplies. IC Role / Device Role: Bulk transient suppressor parallel to bulk capacitor, absorbing energy from alternator ripple and ignition noise. Use Value: Withstands repetitive 500 W pulses at 0.01% duty cycle, extending capacitor life and eliminating regulator shutdown during engine cranking. |
Use Scenario: Mounted across brushed DC motor terminals in smart home vacuum cleaners to suppress commutation spikes. IC Role / Device Role: Snubber diode suppressing inductive kickback from motor windings during PWM switching. Use Value: Limits spike amplitude to ≤15.4 V, preventing gate oxide rupture in MOSFET half-bridge drivers rated for 20 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/54 | Same VWM (9.0 V), identical DO-214AC (SMA) package; 400 W PPPM (vs. 500 W); higher VC = 16.0 V at 5.0 A. | Lower power rating suits consumer-grade 12 V adapters; not AEC-Q101 qualified. | Select SMAJ9.0A-E3/54 only for cost-sensitive non-automotive designs where 100 W margin reduction is acceptable. |
| P6SMB9.0A | Same VWM (9.0 V), DO-214AA (SMB) package; 600 W PPPM; VC = 15.0 V at 6.7 A; no AEC-Q101 qualification. | Higher power rating fits industrial 24 V systems; lacks automotive qualification and JESD201 Class 2 whisker rating. | Choose P6SMB9.0A for higher-energy surge environments outside automotive, but verify layout compatibility with SMB footprint. |
Compared with SA9.0HE3/54, SMAJ9.0A-E3/54 trades 100 W peak power and AEC-Q101 compliance for lower cost and smaller SMA footprint, while P6SMB9.0A offers greater surge margin in SMB form but requires requalification for automotive use and lacks whisker resistance certification.
Availability
SA9.0HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and 12 V DC power input protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for SA9.0HE3/54 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, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The SAxxA series was engineered specifically for robust transient suppression in harsh environments-targeting automotive power distribution, industrial control, and telecom infrastructure where failure modes must be eliminated through rigorous process control and testing.
FAQ
What is the clamping voltage of SA9.0HE3/54 at its rated peak pulse current?
The SA9.0HE3/54 has a maximum clamping voltage (VC) of 15.4 V at 5.0 A peak pulse current (IPPM) under the 10/1000 µs waveform. This value is measured per Figure 7 in the official Vishay datasheet (Doc. #88378), confirming reliable voltage limiting during standardized surge events. The SA9.0HE3/54 maintains this clamping performance across its full operating temperature range.
Is SA9.0HE3/54 suitable for automotive applications?
Yes, SA9.0HE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +175 °C junction temperature range, JESD201 Class 2 whisker resistance, and validation against temperature cycling, HTRB, and ESD make it appropriate for body control modules, infotainment power supplies, and sensor interfaces. The SA9.0HE3/54 meets these requirements without derating.
What does the "HE3" suffix indicate in SA9.0HE3/54?
The "HE3" suffix denotes RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. Unlike the "E3" variant (commercial grade), HE3 guarantees enhanced reliability for automotive applications, including stricter plating adhesion and long-term stability under thermal stress. The SA9.0HE3/54 is fully traceable to Vishay's qualified manufacturing lots.
How does SA9.0HE3/54 differ from bi-directional SA9.0CA variants?
The SA9.0HE3/54 is uni-directional, with a cathode band and forward voltage drop (~3.5 V at 100 A), intended for DC rail protection where polarity is fixed. In contrast, SA9.0CA is bi-directional, unmarked, and symmetrical-used for AC or data-line protection. Their breakdown voltages differ: SA9.0HE3/54 has VBR = 10.0–11.1 V, while SA9.0CA has VBR = 10.0–11.1 V in both directions. The SA9.0HE3/54 cannot substitute for SA9.0CA in AC-coupled circuits.
What is the maximum steady-state power dissipation for SA9.0HE3/54?
The SA9.0HE3/54 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C, per Figure 5 in the Vishay datasheet. This rating decreases linearly above 75 °C and is not intended for continuous power handling-its design purpose is transient suppression, not DC power regulation. The SA9.0HE3/54 relies on short-duration pulse operation.
SA9.0HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 29.6A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA9.0HE3/54 FAQ
1.How can I place an order for SA9.0HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA9.0HE3/54 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 SA9.0HE3/54 reliable?
The price and inventory of SA9.0HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA9.0HE3/54 is usually 5 days.
3.What payment methods are accepted for SA9.0HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA9.0HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA9.0HE3/54?
SA9.0HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA9.0HE3/54 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 SA9.0HE3/54?
For technical support, including SA9.0HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA9.0HE3/54 requirements.
6.How does Aetrix verify that SA9.0HE3/54 is sourced from the original manufacturer or authorized distributors?
All SA9.0HE3/54 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 SA9.0HE3/54 meets industry standards.
7.What is the process for return or replacement of SA9.0HE3/54?
All SA9.0HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA9.0HE3/54, 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 SA9.0HE3/54 part is unused and in its original packaging.
Return procedure for SA9.0HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA9.0HE3/54 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 …
