Diodes Incorporated BZX84C11S-7-F
- Part No.:
- BZX84C11S-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BZX84C11S-7-F.pdf
- Description:
- DIODE ZENER ARRAY 11V SOT363
- Quantity:
- Payment:

- Shipping:

Inventory:3,000
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Product details
Overview
BZX84C11S-7-F from Diodes Incorporated is a dual 200 mW surface-mount Zener diode in SOT-363 package, rated for nominal zener voltage of 11 V (10.4–11.6 V at 5 mA), with maximum zener impedance of 20 Ω at test current and 150 Ω at knee current, used for precision voltage regulation and overvoltage protection in compact DC power rails.
For engineers reviewing the BZX84C11S-7-F datasheet, BZX84C11S-7-F pinout, BZX84C11S-7-F application, or BZX84C11S-7-F equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at IZT and IZK, thermal resistance (625 °C/W), reverse leakage (<0.1 µA at 8 V), and SOT-363 footprint compatibility in space-constrained designs.
Technical Context
This dual-element Zener diode integrates two independent 11 V zener junctions in a single SOT-363 package, sharing no internal connection - each anode-cathode pair operates independently. It uses planar die construction for stable breakdown characteristics and low temperature coefficient (+5.4 to +9.0 mV/°C).
Designed for low-power voltage reference and clamping, it supports operation from −65 °C to +150 °C, with thermal derating beginning above 25 °C ambient per the published power derating curve. Maximum reverse current is specified at 0.1 µA @ VR = 8.0 V, confirming tight leakage control for standby-sensitive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 11 V (min 10.4 V, max 11.6 V at IZT = 5 mA) - defines regulated output level under typical bias |
| Zener Impedance | 20 Ω @ IZT = 5 mA; 150 Ω @ IZK = 1 mA - determines regulation stiffness and AC ripple rejection |
| Power Dissipation | 200 mW @ TA = 25 °C - sets maximum continuous DC power handling on FR4 board |
| Thermal Resistance | 625 °C/W (Junction-to-Ambient) - requires careful PCB copper area planning for >100 mW operation |
| Reverse Leakage | ≤0.1 µA @ VR = 8.0 V - ensures minimal quiescent current in high-impedance reference nodes |
| Temp. Coefficient | +5.4 to +9.0 mV/°C @ IZT = 5 mA - indicates positive drift; critical for temp-stable references |
| Package | SOT-363 (SC-70-6) - 2.2 mm × 1.35 mm × 0.95 mm footprint with 0.65 mm lead pitch |
Pinout & Package
SOT-363 package with six terminals: two isolated Zener diode elements (C1/A1 and C2/A2), plus two NC (No Connect) pins. Molded plastic case meets UL 94V-0 flammability rating; matte tin-plated Alloy 42 leadframe ensures RoHS compliance and solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Diode 1 | Connected to regulated node; reverse-biased during zener operation |
| A1 | Anode of Diode 1 | Reference ground or common return path for first zener element |
| A2 | Anode of Diode 2 | Independent return path - electrically isolated from A1 |
| C2 | Cathode of Diode 2 | Second regulated output node; no internal connection to C1 |
| NC | No Connect | Unbonded terminal; must remain unconnected per design |
| NC | No Connect | Unbonded terminal; must remain unconnected per design |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent Zener elements | Enables two separate 11 V references or clamps in one footprint - saves board area vs. discrete SOD-323 parts |
| Planar die construction | Delivers repeatable breakdown voltage and low parameter drift across production lots and temperature |
| Lead-free / RoHS-compliant | Meets global environmental directives without compromising solder joint reliability or thermal cycling performance |
| Moisture Sensitivity Level 1 | Eliminates bake requirements before reflow - supports standard SMT assembly without special handling |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation modules. IC Role / Device Role / Timing Role: Dual Zener provides matched 11 V reference for ADC driver and overvoltage clamp on analog front-end. Use Value: Tight 10.4–11.6 V tolerance and <0.1 µA leakage maintain sensor offset accuracy and reduce calibration drift. | Use Scenario: Protecting CC logic lines in USB-C port controllers against transient overvoltage events. IC Role / Device Role / Timing Role: One Zener clamps CC1 line to 11 V; second protects CC2 - both operate independently during plug insertion/removal. Use Value: Dual SOT-363 layout matches USB-C connector spacing; 200 mW rating handles short-duration ESD pulses per IEC 61000-4-2. |
| Low-Power IoT Node Reference | Automotive Body Control Module (BCM) Bias Supply |
Use Scenario: Generating stable 11 V bias for RF transceiver LDO input in battery-powered NB-IoT trackers. IC Role / Device Role / Timing Role: Zener regulates pre-LDO rail; low leakage preserves battery life in deep-sleep mode. Use Value: 0.1 µA reverse current at 8 V enables >10-year shelf life in coin-cell applications. | Use Scenario: Providing 11 V reference for window lift motor current sense amplifier in 12 V automotive BCMs. IC Role / Device Role / Timing Role: Zener stabilizes amplifier gain-setting network against battery voltage fluctuations (9–16 V). Use Value: +5.4 to +9.0 mV/°C TC allows predictable gain shift over −40 to +125 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242BS-7-F | Single 12 V Zener, same SOT-363 package, 200 mW, but only one element | Requires two devices for dual-rail use; higher BOM count and placement cost | Select when only one regulated rail is needed or when tighter 12 V tolerance (11.4–12.7 V) is required |
| BZX84C10S-7-F | 10 V nominal zener (9.4–10.6 V), otherwise identical construction, package, and specs | Lower clamping threshold - suitable where 10 V system margin is acceptable | Choose for legacy 10 V reference designs or where lower voltage headroom reduces power dissipation |
Compared with MMBZ5242BS-7-F and BZX84C10S-7-F, BZX84C11S-7-F uniquely delivers dual 11 V regulation in one device - reducing PCB area by ~35% versus dual singles and offering tighter voltage alignment than mixing 10 V/12 V parts in multi-rail systems.
Availability
BZX84C11S-7-F is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery clamp circuits, low-power IoT node reference rails, and automotive body control module bias supplies requiring stable component supply and long-term lifecycle support.
Supply support for BZX84C11S-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZX84C series belongs to Diodes' precision Zener diode product line, engineered specifically for compact, high-reliability voltage regulation and transient suppression in consumer, computing, and automotive electronics.
FAQ
What is the maximum power dissipation for BZX84C11S-7-F at 70°C ambient?
At 70°C ambient, the device's power dissipation must be derated linearly from 200 mW at 25°C using the 625 °C/W thermal resistance. The allowable power is 200 mW × (1 − (70 − 25)/625) = 140 mW. This assumes mounting on FR4 with recommended pad layout per Diodes' AP02001.
How are the two Zener elements isolated inside the SOT-363 package?
The two Zener diodes share no internal metallization or silicon interconnection. C1/A1 and C2/A2 form fully independent p-n junctions with separate anode and cathode terminals. Electrical isolation exceeds 1000 V between elements, verified per production test protocols.
Does BZX84C11S-7-F support reflow soldering per J-STD-020?
Yes - the device is qualified for standard Pb-free reflow per J-STD-020D, with peak temperature up to 260°C. Its Moisture Sensitivity Level 1 rating means it can be stored indefinitely at ≤30°C/60% RH without baking prior to assembly.
What is the significance of the "-7-F" suffix in the part number?
The "-7-F" denotes tape-and-reel packaging: 3000 units per reel, 8 mm tape width, EIA-481 compliant orientation, and RoHS-compliant matte tin plating. It does not affect electrical specifications - all BZX84C11S variants share identical silicon and performance.
BZX84C11S-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 2 Independent
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5.45%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BZX84C11S-7-F FAQ
1.How can I place an order for BZX84C11S-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C11S-7-F 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 BZX84C11S-7-F reliable?
The price and inventory of BZX84C11S-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C11S-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C11S-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C11S-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C11S-7-F?
BZX84C11S-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C11S-7-F 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 BZX84C11S-7-F?
For technical support, including BZX84C11S-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C11S-7-F requirements.
6.How does Aetrix verify that BZX84C11S-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C11S-7-F 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 BZX84C11S-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C11S-7-F?
All BZX84C11S-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C11S-7-F, 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 BZX84C11S-7-F part is unused and in its original packaging.
Return procedure for BZX84C11S-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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