BYG21M BYG21M is a 1.5A, 1000V fast avalanche surface mount rectifier from Taiwan Semiconductor. Packaged in DO-214AC (SMA), it features fast reverse recovery time of 120 ns and high surge capability.
Mfr Part #:

BYG21M

Available from 1 distributors
Mfr Name: Taiwan Semiconductor
Taiwan Semiconductor
BYG21M is a 1.5A, 1000V fast avalanche surface mount rectifier from Taiwan Semiconductor. Packaged in DO-214AC (SMA), it features fast reverse recovery time of 120 ns and high surge capability.
Total Stock: 3,135 pcs
$ Price Range: $0.07 - $0.56

BYG21M Available from 1 distributor

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Non-Authorised
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BYG21M Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Avalanche Pulse Energy
Average Forward Current
Capacitance
Capacitance @ Vr, F
Current
Halogen Free
I_R (Maximum @ V_R = V_RRM, T_J = 100 °C)
I_R (Maximum @ V_R = V_RRM, T_J = 125 °C)
I_R (Maximum @ V_R = V_RRM, T_J = 25 °C)
Junction to Ambient Thermal Resistance
Junction to Lead Thermal Resistance
Medical Grade
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Peak Forward Surge Current
Repetitive Peak Reverse Voltage
Reverse Recovery Time
Reverse Recovery Time (trr)
Reverse Voltage (RMS)
Speed
Standard Package Quantity
Storage Temperature
Supplier Device Package
Technology
V_F (Maximum @ I_F = 1.0 A, T_J = 25 °C)
V_F (Maximum @ I_F = 1.5 A, T_J = 25 °C)
Voltage

BYG21M Description

Short technical summary and product information.

The BYG21M is a fast avalanche surface mount rectifier from Taiwan Semiconductor, rated for 1.5 A average forward current and a maximum repetitive peak reverse voltage of 1000 V. It is designed for automated placement and delivers fast switching with a maximum reverse recovery time of 120 ns.

 

With a peak forward surge current rating of 50 A (8.3 ms half sine-wave) and avalanche pulse energy capability of 30 mJ, this diode is well suited for applications requiring high surge robustness and energy absorption in inductive circuits. Forward voltage is 1.6 V maximum at 1.5 A and reverse leakage remains low at 1 µA at 25°C.

 

The device is housed in a DO-214AC (SMA) surface mount package with matte tin plated leads and a cathode band polarity indicator. It supports an operating junction temperature range of -55°C to +150°C. The BYG21M is RoHS compliant, halogen-free per IEC 61249-2-21, and meets MSL level 1 per J-STD-020.

BYG21M Quick Information

Product Type: Fast Avalanche Rectifier Diode
Series: BYG21M
Canonical Name: BYG21M Fast Avalanche Surface Mount Rectifier
Subcategory: Single Diodes

BYG21M Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: Non-Compliant

BYG21M Estimated Pricing

Qty Low High
1+ $0.56 $0.56
10+ $0.34 $0.34
100+ $0.22 $0.22
500+ $0.16 $0.16
1,000+ $0.15 $0.15
2,000+ $0.13 $0.13
7,500+ $0.09 $0.09
15,000+ $0.09 $0.09
22,500+ $0.08 $0.08
37,500+ $0.08 $0.08
52,500+ $0.08 $0.08
75,000+ $0.07 $0.07

Estimated market price range - modelled values for guidance only, not live distributor offers.

BYG21M Features

  • Fast reverse recovery time of 120 ns.
  • High surge current capability of 50 A.
  • Avalanche energy rating of 30 mJ.
  • Surface mount DO-214AC (SMA) package.
  • RoHS and halogen-free compliant.

BYG21M Applications

  • Free-wheeling diode in power supplies.
  • Clamping and snubber circuits.
  • Demagnetization in power switching applications.
  • High efficiency rectification in automated assembly.

BYG21M FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive peak reverse voltage of BYG21M?

The maximum repetitive peak reverse voltage (V_RRM) is 1000 V.

What is the average forward current rating?

The maximum average forward current (I_F(AV)) is 1.5 A.

What is the reverse recovery time?

The maximum reverse recovery time (t_rr) is 120 ns, tested at I_F=0.5A, I_R=1.0A, I_rr=0.25A.

What package is BYG21M available in?

The device is packaged in DO-214AC (SMA) surface mount package.

Is the BYG21M RoHS compliant?

Yes, it is RoHS compliant and also halogen-free per IEC 61249-2-21.

What is the junction temperature range?

The operating junction temperature range is -55°C to +150°C.

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