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Renesas RD11M(0)-T1B-A
- Part No.:
- RD11M(0)-T1B-A
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD11M(0)-T1B-A.pdf
- Description:
- RD11M(0)-T1B-A - ZENER DIODES 20
- Quantity:
- Payment:
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Inventory:72,000
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Product details
Overview
RD11M(0)-T1B-A from Renesas Electronics is a 200 mW, 3-pin mini-mold planar zener diode with nominal zener voltage of 11.1–11.56 V at 5 mA test current, dynamic impedance ≤30 Ω, and reverse current ≤2 μA at 8.0 V. It serves as a precision voltage reference or surge absorber in low-power analog signal conditioning and power rail stabilization circuits.
For engineers reviewing the RD11M(0)-T1B-A datasheet, RD11M(0)-T1B-A pinout, RD11M(0)-T1B-A application, or RD11M(0)-T1B-A equivalent, key selection criteria include its E24-standardized zener voltage tolerance (Class B3), SC-59 package compatibility, 150°C junction temperature rating, and suitability for constant-voltage regulation in consumer and industrial control systems.
Technical Context
This device uses planar diffusion technology to achieve stable zener breakdown characteristics across ambient temperatures. Its voltage regulation relies on controlled avalanche and zener mechanisms, with temperature coefficient optimized near zero crossing in the 10–12 V range.
The RD11M(0)-T1B-A operates within a defined reverse-bias region where zener current (IZ) is maintained between 2 mA and 100 mA for stable regulation. Its transient thermal impedance profile supports short-duration surge handling up to 100 W for 10 μs pulses, per JEDEC JESD22-A115A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.10–11.56 V at IZ = 5 mA - defines regulated output voltage window under standard test conditions |
| Dynamic Impedance (ZZ) | ≤30 Ω at IZ = 5 mA - determines output voltage stability against load current variations |
| Power Dissipation (P) | 200 mW at TA = 25°C - sets maximum continuous DC power handling before thermal derating |
| Reverse Current (IR) | ≤2 μA at VR = 8.0 V - ensures minimal leakage below breakdown, critical for low-power standby circuits |
| Junction Temperature (Tj) | −55 to +150°C - enables operation in extended industrial environments without external heatsinking |
| Package | SC-59 (JEITA) - 3-pin surface-mount package with standardized footprint for automated assembly |
| Peak Reverse Power (PRSM) | 100 W at tT = 10 μs - supports transient overvoltage suppression in ESD and inductive switching events |
Pinout & Package
RD11M(0)-T1B-A is housed in an SC-59 (JEITA) 3-pin mini-mold plastic package. Pin 1 is NC (no connection), Pin 2 is Anode (A), and Pin 3 is Cathode (K). The package conforms to JEDEC TO-236AB outline with 2.9 mm × 1.5 mm body dimensions and 0.95 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection (NC) | Electrically isolated terminal; must remain unconnected to avoid parasitic coupling or mechanical stress |
| 2 | Anode (A) | Forward-biased terminal during conduction; connects to lower-potential node in reverse-bias regulation configuration |
| 3 | Cathode (K) | Zener breakdown terminal; connects to higher-potential node and carries regulated output current |
Key Features
| Feature | Design Value |
|---|---|
| Planar process construction | Ensures repeatable breakdown voltage distribution and long-term parameter stability under thermal cycling |
| E24-standardized VZ grading | Enables predictable binning for voltage-sensitive designs without custom calibration or trimming |
| Low dynamic impedance (≤30 Ω) | Minimizes output voltage deviation under ±10 mA load transients in reference supply rails |
| 150°C maximum junction temperature | Supports placement near heat-generating components in compact PCB layouts without derating penalties |
| SC-59 package compatibility | Allows direct substitution into existing 3-pin SMT footprints used for RD-series zeners across Renesas' portfolio |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA loop transmitters operating at 70°C ambient. IC Role / Device Role / Timing Role: Zener diode providing fixed 11.3 V reference for current-sense amplifier excitation. Use Value: Maintains <±1% output accuracy over temperature due to Class B3 VZ tolerance and low ZZ. |
Use Scenario: Clamping transient surges on USB VBUS line during hot-plug events in embedded host controllers. IC Role / Device Role / Timing Role: Surge absorber limiting peak voltage to 12 V during 10 μs ESD pulses per IEC 61000-4-2 Level 4. Use Value: Absorbs 100 W peak power without degradation, verified by PRSM rating and transient thermal impedance curve. |
| Consumer Audio DAC Reference | Programmable Logic Controller Input Protection |
|
Use Scenario: Generating clean 11.3 V reference for 24-bit audio DAC in battery-powered portable mixer. IC Role / Device Role / Timing Role: Low-noise voltage reference source with IR ≤2 μA ensuring minimal quiescent current drain. Use Value: Enables >110 dB SNR by suppressing supply ripple coupling via tight VZ regulation and low ZZ. |
Use Scenario: Protecting 24 VDC digital input channels from field-wiring induced transients in factory automation I/O modules. IC Role / Device Role / Timing Role: Constant-voltage clamp shunting excess energy to ground during inductive load switching. Use Value: Survives repeated 500 V/μs edge-rate surges per IEC 61000-4-4 due to robust planar junction structure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5242BT1G | Zener voltage 11 V ±5%, P = 225 mW, SOT-23 package, ZZ = 23 Ω at 20 mA | Higher test current shifts regulation point; requires layout adaptation for SOT-23 vs SC-59 footprint | Preferred when higher power margin and tighter ZZ spec are required, but board rework is acceptable |
| Vishay SZMMBZ5242ET1G | Zener voltage 11 V ±5%, P = 300 mW, AEC-Q200 qualified, same SOT-23 footprint | Automotive-grade qualification adds cost; no NC pin - all three terminals active | Selected only for automotive programs requiring AEC-Q200 compliance; not drop-in for RD11M(0)-T1B-A |
Compared with MMBZ5242BT1G and SZMMBZ5242ET1G, RD11M(0)-T1B-A offers guaranteed Class B3 voltage binning (11.10–11.56 V), a no-connect pin enabling simplified routing in dense layouts, and legacy industrial qualification aligned with Renesas' Standard quality grade for office and industrial equipment.
Availability
RD11M(0)-T1B-A is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB port overvoltage protection, consumer audio DAC reference, and programmable logic controller input protection requiring stable component supply and long-lifecycle support.
Supply support for RD11M(0)-T1B-A 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and consumer markets.
The RD-series zener diodes were developed for precision voltage regulation and transient suppression in cost-sensitive, high-volume industrial and consumer electronics, emphasizing reliability, E24 compatibility, and JEDEC-standard packaging.
FAQ
What is the exact zener voltage range for RD11M(0)-T1B-A at 5 mA?
The RD11M(0)-T1B-A has a guaranteed zener voltage range of 11.10 V to 11.56 V when tested at IZ = 5 mA and TA = 25°C, per Class B3 specification in Renesas Document D14716EJ7V0DS. This range reflects the tightest binning tier for the RD11M family and is confirmed in the Electrical Characteristics table on page 3 of the datasheet.
Does RD11M(0)-T1B-A have a no-connect pin, and how should it be handled on the PCB?
Yes, RD11M(0)-T1B-A Pin 1 is designated NC (no connection) and must remain unconnected on the PCB. The datasheet explicitly states "1 . NC" in the package diagram and marking section. Routing traces to or placing solder paste on Pin 1 may cause mechanical stress or unintended coupling and is not recommended.
What is the maximum allowable reverse voltage before breakdown for RD11M(0)-T1B-A?
The RD11M(0)-T1B-A exhibits ≤2 μA reverse current at VR = 8.0 V, meaning it remains effectively non-conductive up to that voltage. Breakdown begins near 11.1 V, so 8.0 V represents the maximum safe reverse bias for leakage-critical applications such as battery monitoring or ultra-low-power sleep modes.
Can RD11M(0)-T1B-A be used in automotive applications?
RD11M(0)-T1B-A is rated for Renesas' "Standard" quality grade, intended for computers, office equipment, and industrial robots-not automotive systems. It lacks AEC-Q200 qualification, and Renesas explicitly restricts use in transportation equipment without prior written consent, per Quality Grade Notice Section 7 of the datasheet.
How does the dynamic impedance of RD11M(0)-T1B-A affect its performance in a voltage reference circuit?
The RD11M(0)-T1B-A's dynamic impedance of ≤30 Ω at 5 mA means a 1 mA change in zener current causes ≤30 mV output variation. In a precision reference design, this low ZZ helps maintain regulation accuracy under varying load conditions, especially when paired with a series resistor sized to deliver stable IZ across input voltage fluctuations.
RD11M(0)-T1B-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RD11M(0)-T1B-A FAQ
1.How can I place an order for RD11M(0)-T1B-A through Aetrix?
Please submit a Request for Quotation (RFQ) for RD11M(0)-T1B-A 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 RD11M(0)-T1B-A reliable?
The price and inventory of RD11M(0)-T1B-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD11M(0)-T1B-A is usually 5 days.
3.What payment methods are accepted for RD11M(0)-T1B-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD11M(0)-T1B-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD11M(0)-T1B-A?
RD11M(0)-T1B-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD11M(0)-T1B-A 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 RD11M(0)-T1B-A?
For technical support, including RD11M(0)-T1B-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD11M(0)-T1B-A requirements.
6.How does Aetrix verify that RD11M(0)-T1B-A is sourced from the original manufacturer or authorized distributors?
All RD11M(0)-T1B-A 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 RD11M(0)-T1B-A meets industry standards.
7.What is the process for return or replacement of RD11M(0)-T1B-A?
All RD11M(0)-T1B-A units undergo pre-shipment inspection (PSI). If there is an issue with RD11M(0)-T1B-A, 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 RD11M(0)-T1B-A part is unused and in its original packaging.
Return procedure for RD11M(0)-T1B-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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