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Diodes Incorporated BZX84C27TS-7-F
- Part No.:
- BZX84C27TS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BZX84C27TS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 27V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:2,810
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Product details
Overview
BZX84C27TS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array with three isolated 27 V Zener elements in a single SOT-363 package, rated for 200 mW total power dissipation, 80 Ω maximum Zener impedance at 2 mA, and ±1.9 V Zener voltage tolerance (25.1–28.9 V), used for precision voltage regulation and overvoltage protection in compact DC power rails.
For engineers reviewing the BZX84C27TS-7-F datasheet, BZX84C27TS-7-F pinout, BZX84C27TS-7-F application, or BZX84C27TS-7-F equivalent, key selection criteria include nominal Zener voltage (27 V), test current (2 mA), Zener impedance (80 Ω), reverse leakage (0.1 µA @ 18.9 V), and thermal resistance (625 °C/W) in ultra-small SOT-363 packaging.
Technical Context
This triple Zener array integrates three electrically isolated diodes sharing only mechanical packaging-no internal connection-enabling independent voltage clamping or reference functions per element. Each diode exhibits sharp Zener breakdown with low dynamic impedance (80 Ω @ 2 mA) and tight voltage tolerance (±1.9 V).
Designed for surface-mount operation on FR4 PCBs with specified pad layout, it delivers stable regulation across -65 °C to +150 °C ambient, with thermal resistance of 625 °C/W and derated power above 25 °C per Fig. 1. Reverse leakage remains ≤0.1 µA up to 18.9 V, supporting low-power sensing and biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27.0 V nominal, 25.1–28.9 V range at IZT = 2 mA - defines precise clamping threshold for 24 V rail protection |
| Power Dissipation (PD) | 200 mW total - limits continuous Zener current to ~7.4 mA at 27 V without heatsinking |
| Zener Impedance (ZZT) | 80 Ω max at 2 mA - ensures minimal voltage shift under load variation in feedback networks |
| Reverse Leakage (IR) | 0.1 µA max @ 18.9 V - enables use in high-impedance bias/reference circuits without loading error |
| Thermal Resistance (RθJA) | 625 °C/W - requires careful PCB copper area allocation to maintain junction temp <150 °C at full power |
| Operating Temp Range | -65 °C to +150 °C - supports automotive under-hood and industrial control environments |
Pinout & Package
Package: SOT-363 - ultra-small plastic surface-mount case (2.2 × 1.3 × 0.95 mm), UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Independent anode for first Zener element; connects to cathode of external series resistor in shunt regulator |
| A2 | Anode 2 | Independent anode for second Zener element; electrically isolated from A1 and A3 |
| A3 | Anode 3 | Independent anode for third Zener element; enables triple-rail or redundancy schemes |
| C1 | Cathode 1 | Independent cathode for first Zener element; tied to regulated node or protection point |
| C2 | Cathode 2 | Independent cathode for second Zener element; no internal connection to C1 or C3 |
| C3 | Cathode 3 | Independent cathode for third Zener element; supports multi-voltage domain clamping |
Key Features
| Feature | Design Value |
|---|---|
| Triple isolated Zener elements | Enables simultaneous regulation/clamping of three independent voltage nodes in one footprint |
| 27 V nominal Zener voltage | Targets 24 V system rails with margin for transient suppression and temperature drift |
| SOT-363 ultra-small package | Reduces board space by >50% vs. discrete SOD-323 Zeners; compatible with fine-pitch automated assembly |
| Lead-free & RoHS-compliant | Meets IPC-J-STD-020D Level 1 moisture sensitivity and global environmental compliance requirements |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs in pressure/temperature transducers. IC Role / Device Role / Timing Role: Shunt voltage reference providing 27 V clamp to protect op-amp input stages during ESD events. Use Value: Maintains ADC accuracy by limiting input swing to 27 V ±1.9 V while drawing only 0.1 µA leakage at 18.9 V. | Use Scenario: Overvoltage protection on LIN bus power supply lines exposed to load-dump transients. IC Role / Device Role / Timing Role: Triple-Zener array clamps three separate 12 V subsystem rails (door module, seat control, mirror driver) independently. Use Value: Prevents latch-up in microcontrollers by limiting each rail to ≤28.9 V during 40 V/100 ms load dump, with no cross-talk between channels. |
| Telecom Power Sequencing | Medical Portable Diagnostic Device |
Use Scenario: Enabling controlled startup sequencing of dual 3.3 V / 5 V / 12 V supplies in base station RF modules. IC Role / Device Role / Timing Role: Zener-based reset supervisor using one element as voltage threshold detector for enable signal generation. Use Value: Delivers repeatable 27 V trip point with <80 Ω dynamic impedance, ensuring consistent timing across temperature (-40 to +85 °C). | Use Scenario: Protecting analog front-end (AFE) inputs in handheld ultrasound units from ESD and cable-induced surges. IC Role / Device Role / Timing Role: Low-leakage (0.1 µA) Zener clamp on differential AFE inputs to preserve SNR in 100 kHz–10 MHz bandwidth. Use Value: Limits input excursion to 28.9 V without injecting noise or offset, preserving 70+ dB SNR in battery-powered operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Single-element 3.0 V Zener in SOT-363; same package but no triple isolation | Only suitable for single-rail clamping; lacks multi-channel capability | Select when only one regulated node is needed and board space permits discrete placement |
| BZX84C27LT1G | Single-element 27 V Zener in SOT-23; identical electrical specs but no multi-diode integration | Requires three separate placements for equivalent functionality; increases assembly cost | Choose if legacy SOT-23 footprint compatibility is mandatory and triple isolation is not required |
Compared with MMBZ5227BS-7-F and BZX84C27LT1G, BZX84C27TS-7-F uniquely delivers three independent 27 V Zener functions in one SOT-363 footprint-reducing component count by 2× and PCB area by >60% versus discrete solutions-while maintaining identical voltage tolerance and leakage performance.
Availability
BZX84C27TS-7-F is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, telecom power sequencing, and medical portable diagnostics requiring stable component supply and long-term lifecycle support.
Supply support for BZX84C27TS-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 and manufacturing operations across Asia and the Americas.
The BZX84C series belongs to Diodes' precision Zener diode portfolio, engineered specifically for compact, high-reliability voltage regulation and transient suppression in space-constrained consumer, industrial, and automotive applications.
FAQ
What is the maximum continuous Zener current for BZX84C27TS-7-F at 25°C?
At 25°C ambient, the maximum continuous Zener current is approximately 7.4 mA, calculated from PD = 200 mW and VZ = 27 V (IZ = PD/VZ). Derating begins above 25°C per the power derating curve in Fig. 1, reducing allowable current linearly to zero at 150°C junction temperature.
Can BZX84C27TS-7-F be used in place of a single 27 V Zener diode?
Yes-any one anode-cathode pair (e.g., A1/C1) functions as a standalone 27 V Zener with identical electrical specs to the single-element BZX84C27LT1G. The other two elements remain unused but electrically isolated, imposing no circuit impact or parasitic loading.
Is the SOT-363 package lead-free and RoHS compliant?
Yes-the BZX84C27TS-7-F uses matte tin plating over Alloy 42 leadframe and green molding compound, meeting RoHS Directive 2011/65/EU and J-STD-020D Level 1 moisture sensitivity requirements, with no intentionally added lead or halogenated flame retardants.
How does temperature affect the Zener voltage of BZX84C27TS-7-F?
The temperature coefficient for this part is +0.2 mV/°C (from the datasheet's "Max" column for 27 V grade), meaning Zener voltage increases by ~0.2 mV per °C rise in junction temperature. At 100°C ΔT, VZ rises ~20 mV-well within its ±1.9 V tolerance band at 25°C.
BZX84C27TS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Configuration:
- 2 Independent
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±7.04%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 18.9 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
BZX84C27TS-7-F FAQ
1.How can I place an order for BZX84C27TS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C27TS-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 BZX84C27TS-7-F reliable?
The price and inventory of BZX84C27TS-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 BZX84C27TS-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C27TS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C27TS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C27TS-7-F?
BZX84C27TS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C27TS-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 BZX84C27TS-7-F?
For technical support, including BZX84C27TS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C27TS-7-F requirements.
6.How does Aetrix verify that BZX84C27TS-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C27TS-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 BZX84C27TS-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C27TS-7-F?
All BZX84C27TS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C27TS-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 BZX84C27TS-7-F part is unused and in its original packaging.
Return procedure for BZX84C27TS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C27TS-7-F Tags
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Diodes Incorporated
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